ILLINOIS POLLUTION CONTROL BOARD

March

16,

1995

IN THE MATTER OF:

)

SAFE DRINKING WATER ACT

)

 R94—23

UPDATE,

 LEAD AND

COPPER

)

 (Identical-in—Substance Rules)

RULES CORRECTIONS, January 31

)

 (Public Water Supplies)

through June,

30,

1994

)

IN THE MATTER OF:

)

SAFE DRINKING WATER ACT

)

 R95-3

UPDATE, LEAD

AND

COPPER

)

 (Identical-in-Substance Rules)

RULES CORRECTIONS, July

1

)

 (Public Water Supplies)

through December,

31,

1994

)

Proposal for Public Comment.

PROPOSED OPINION AND ORDER OF THE BOARD

 (by R.C. .Flemal):

SUMMARY

OF TODAY’S ACTION

Pursuant to Section 17.5 of the Environmental Protection Act

(Act), the Board today proposes to update its regulations that

are identical in substance to U.S. EPA regulations implementing

the Safe Drinking Water Act

 (SDWA).

 The Board rules are

contained in 35 Iii.

 Adin. Code 611.

 The text of the proposed

rules appears in the order segment of this document, following

the discussions.

Section 17,5 of the Act provides

 for quick adoption of

regulations that are “identical in substance” to federal

regulations.

 Section 17.5 provides that Title VII of the Act and

Section

 5 of the Illinois Administrative Procedure Act

 (APA)

shall not apply.

 Because this rulemaking is not subject to

Section

 5 of the APA

 (5 ILCS 100/5-35 and 5-45),

 it is not

subject to first notice requirements or second notice review by

the Joint Committee on Administrative Rules (JCAR).

As discussed more fully below, this rulemaking involves

revisions of the Illinois public water supply regulations.

It

includes the federal corrections to the lead and copper rules,

as

adopted by U.S. EPA on June 30,

 1994 and a note to a recent

judicial decision,

 that affects the implementation of those

rules.

PUBLIC COMMENTS

The Board requests public comments on this proposal.

The

Board will accept comments for 45 days after a Notice of Proposed

Amendments appears in the Illinois Register.

 The Board will then

act promptly to adopt amendments based on the federal amendments

involved in this docket.

2

Interested persons should address their comments

 to the

Clerk of the Board.

 They should provide one original and nine

copies and reference docket number R94-23/R95-3 on the front of

 each copy.

 Direct all questions to Michael

J.

 McCambridge,

at

312—814—6924.

ROUTINE DISCUSSIONS

At the end of the opinion segment of this document are two

routine discussions generally made a part of identical-in-

substance opinions.

 The first

is

 a summary of the history of the

Illinois SDWA identical-in—substance proceedings.

 The second is

a summary of some of the conventions the Board uses in deriving

identical—in—substance rules.

 We present those discussions for

general informational purposes.

FEDERAL ACTIONS COVERED BY THIS RULEMAKING

AND GENERAL DISCUSSION OF THE PRESENT ISSUES

The SDWA program was drawn from 40 CFR 141

 (national primary

drinking water regulations or NPDWRs),

 40 CFR 142

 (NPDWRs

implementation),

 and 40 CFR 143

 (national secondary drinking

water regulations or NSDWRs).

 The nominal update period of the

R94—23 docket

 is from January

1,

 1994 through June 30,

 1994.

The

nominal update period of the R95—3 docket

 is from July

1,

1994

through December 31,

 1994.

 U.S.

 EPA amended its SDWA regulations

three times during the two update periods.

 The federal actions

during the time—frame of this docket were as follows:

59 Fed.

 Reg. 33860

 (June 30,

 1994)

 (Lead and Copper

 corrections)

59 Fed.

 Reg. 34320

 (July

1,

 1994)

 (Monitoring for

Unregulated Contaminants)

59 Fed.

 Reg. 62470

 (Dec.

5,

 1994)

 (Analytical Methods)

The amendments to the lead and copper rules,

 adopted by U.S.

EPA on June 30,

 1994, corrected typographical errors, clarified

language, and restored special primacy provisions inadvertently

omitted by U.S.

 EPA in earlier rulemaking.

 U.S. EPA stated that

it intended to clarify the regulations in order to simplify

implementation.

 The amendments of July

1,

 1994 similarly

corrected typographical errors, clarified language, and corrected

errors in regulatory text from U.S.

 EPA’s stated intent in the

Phase

 I, Phase II,

 and Phase V rules.

 The amendments of December

5,

 1994 approved new and updated existing analytical methods.

Essentially, these last updates are intended to eliminate

multiple uses of procedures, which have resulted in the use of

multiple versions of methods for different purposes.

3

Another related aspect of this update concerns a judicial

challenge to the federal lead and copper regulations.

In

American Water Works Association

v.

 EPA,

 40 F.3d 1266

 (D.C.

 Cir.

1994), the federal appellate court vacated an aspect of a

 definition instrumental to implementation of certain of the lead

and copper regulations.

 Although the Board did not base

substantive amendments on the federal judicial decision, we added

a Board Note to the affected segment of the rules to indicate the

action and state its probable impact on the enforceability of the

affected rule.

4

CONSOLIDATION OF DOCKETS

Although the Board generally deals with each update batch

separately, we deal with them together in this instance because

it is expeditious for the Board and

 it will avoid misleading the

public.

 The present SDWA amendments of December 5,

 1994 affect

some of the same provisions as the amendments of June 30,

 1994.

In at least one key instance

 (40 CFR 141.89(a)), the amendments

of December obviate the amendments of June.

Generally, where such an overlap of substance occurs, the

Board is inclined to pull the later amendments forward and deal

with them in the earlier docket.

 This avoids duplication of

effort and confusion in the regulated community.

 This often

allows dismissal of the later docket.

 The Board is dealing with

the later amendments together with the earlier~amendments and did

not delay in this instance for the following reasons:

1)

 The July

 1 and December 5,

 1994 amendments were directly

affected by the June 30,

 1994 amendments; and

2)

 Prompt action on the July

 1 and December

5,

 1994 amendments

will facilitate implementation of the regulations.

Although we are dealing with all amendments together, the Board

does not believe that outright dismissal of the later R95—3

docket is appropriate; the amendments are major in importance.

For these reasons, the Board has consolidated the two

proceedings,

 in order to avoid any possible confusion and to

particularly draw the attention of the interested public to both

sets

 of, amendments.

The Board also notes that the later amendments occurred

within six months of the earliest amendments included in this

docket, even if they occurred outside the nominal time—frame of

the docket.

DETAILED SECTION—BY-SECTION-ANALYSIS

The Board proposes amendments in response to these federal

actions.

 The following detailed section-by—section discussion

focuses on the details of the actions taken.

Routine, General Amendments—-All Sections

The Board has performed a number of standard revisions to

the text of the federal rules.

 The rationale behind many of

these

 is discussed in the August

9,

 1990 opinion and order in

docket R88-26

 (Phase

 I rules), and we will not repeat those

discussions here.

 Others are so minor as to warrant no

explanation.

 The standard changes are as follows:

5

1.

 Where the federal rules require an action “by”

 a certain

date,

 the Board renders that as

 “on or before” that date.

2.

 We have changed various subsections to the active voice,

rather than following the federal use of the passive voice.

3.

 We have updated all Board Notes to reflect the 1993 version

of the Code of Federal Regulations and to reference the June

30,

 1994 Federal Register action, where appropriate.

4.

 We have made a number of changes based on the unique

attributes of the Illinois regulatory, scheme and on certain

stylistic preferences,

 as described in the Addendum re

Standardized Modifications of Federal Text at the end of

this opinion.

General Housekeeping Amendments

Completing a practice begun

 in an earlier update docket,

the

Board changes all remaining references to the United States

Environmental Protection Agency to “U.S.

 EPA” throughout the text

of the regulations.

 This includes the redesignation of

“Inorganic Methods”

 as “U.S.

 EPA Inorganic Methods”.

 This

occurred in Sections 611.100,

 611.102,

 611.110,

 611.111,

 611.112,

611.113, 611.130, 611.201,

 611.212,

 611.300,

 611.301,

 611.310,

611.311, 611.351, 611.359,

 611.480,

 611.490, 611.500,

 611.510,

 611.522,

 611.523, 611.560,

 611.600,

 611.601,

 611.605,

 611.611,

611.612,

 611.630, 611.646,

 611.647,

 611.648, 611.860,

 611.Table

E,

 and 611.Table

Z.

 In many of these provisions, this is the

only amendment.

 While the Board has traditionally waited until

Sections open for other amendments to make stylistic revisions

and minor corrections, we will make these changes now in order to

complete the change and make the regulations internally

consistent.

 Further, since the volume of substantive amendments

is light

 in this update,

 it is convenient to make these changes

now.

A similar set of amendments relates to correction of

citations to the Illinois Compiled Statutes and the format of

those citations.

 These corrections occurred at Sections 611.100,

611.10?, 611.125, and 611.220.

 All citations to the older

Illinois Revised Statutes have been deleted where they appeared.

The statutory titles have been corrected at Sections 611.100,

611.125, and 611.220.

Other general amendments were ancillary to the substantive

amendments in this docket.

 The following discussions

specifically highlight these amendments.

Definitions-—Section

 611.101

U.S. EPA corrected 40 CFR 141.2 at 59

 Fed. Reg.

34322

 (July

6

1,

 1994)

 by amending one definition and adding another.

The

amendments to the definition of “initial compliance period”

related to citation format and correction

of

 a cross—reference to

the list of inorganic chemical contaminants

 (lOCs)

 for which the

initial compliance period did not begin on January

1,

 1993.

The

added definition was of “transient non—community water system”,

which U.S. EPA abbreviated as

“TWS”

and the Board abbreviated as

“transient non—CWS”.

Section 611.102 corresponds with 40 CFR 141.2.

 There was no

amendment necessary to the definition of “initial compliance

period”

 in the Illinois regulations.

 The citation format and

citation corrections are meaningless because the Board inserted

the IOC names

 in place of the cross-references when initially

adopting the definition.

The Board foresaw the need and added the definition of

“transient non-community water system” when initially adopting

the regulations, so the addition of the definition was

unnecessary.

 However,

 U.S.

 EPA defined the term directly,

and

the Board’s

 former definition appeared in terms of what a

transient non—CWS was not.

 (It was not

 a community waste system

and not a non—transient non—CWS.)

 The definition is now amended

to use U.S. EPA’s language.

 We note,

 however, that

 retained

our abbreviation for the term,

 “transient non-CWS”, rather than

use the federal “TWS”,

 because throughout the course of these

SDWA updates,

 one consistent informal complaint expressed to

Board staff has related to the confusing over-use of

abbreviations.

 For this same reason, we have deleted the former

abbreviation “TNCWS”, which appeared nowhere in the text of the

regulations but in this definition.

 The Board invites comment on

our definitions of “initial compliance period” and “transient

non—community water system”.

Effective Dates—-Section 611.120

U.S. EPA amended 40 CFR 141.6(a) at 59

 Fed. Reg. 34322

 (July

1,

 1994)

 to correct the reference to the exceptions from the

general effective date and to correct a reference in one of the

exceptions.

 It amended 40 CFR 141.60(a) (3)

at

 59 Fed. Reg.

34324

(July

1,

 1994)

 to change the effective date for the MCL for

endrin from January 17,

 1994 to August

17,

 1992.

 The Board has

an effective date reference at Section 611.120 that is

fundamentally different from the federal provision.

 Without

regard to when the federal regulations become effective, the

Illinois regulations are effective at a later date:

 when they

are filed with the Secretary of State.

 That is the general rule

 on effective dates recited

 in Section 611.120.

 Therefore,

amendments based on the federal corrections are unnecessary.

7

Special Primacy Reguirernents-—Section

 611. 130

U.S. EPA added 40 CFR 142.16(d)

 at 59

 Fed.

 Reg.

33864

 (June

30,

 1994).

 This sets forth the special primacy requirements for

state lead and copper programs.

 U.S. EPA explained that the

Phase II amendments of July 30,

 1992 at 56 Fed. Reg. 3526

 (Jan.

30,

 1991)

 erroneously deleted these provisions.

 The recent

amendment restored them.

The Illinois regulations do not include a counterpart to 40

CFR 142.16 because such

 a provision

 is unnecessary.

 This rule

applies only to the state,

 and not to the regulated community.

Therefore,

 no amendment is necessary based on this federal

action.

The

Board

 invites comment on our approach to the lead

and copper special primacy requirements.

U.S. EPA corrected a reference to another agency’s

regulations

 in 40 CFR 142.62(g) (2), at 59

 Fed. Reg.

33864

 (June

30,

 1994).

 The reference was to Food and Drug Administration

rules relating to the quality of bottled water.

The Board corrected the federal error in the original

 adoption of corresponding Section 6l1.130(e)(4)(C).

 Therefore,

the only amendment we make at this time is to update the citation

in the Board Note at the end of subsection

(e)

 to include the

Federal Register citation to the federal amendments to 40 CFR

142.62(g).

 The Board invites comment on the amendments to

Section 611.130(e).

Finally,

 U.S. EPA corrected the listings of BAT in 40 CFR

142.62(a)

 at 59 Fed.

 Reg. 34325

 (July

1,

 1994).

 40 CFR 142.62(a)

lists BAT for all contaminants for use in obtaining relief from

an MCL.

 In the amendments,

 U.S. EPA corrected the headings for

“PTA” and “GAC”,

 removed PTA as BAT for alachior, corrected the

spelling of dalapon, and changed BAT for hexachlorobenzene from

OX to GAC.

 These corrections prompted no substantive amendments

to the Illinois regulations,

 since the Board never adopted the

table.

 Rather,

 as is explained in the Board Note to Section

611.130(c),

 we relied on the listings of BAT at Sections 611.301

and 611.311 for the sake of consistency.

 The only amendment

prompted by these corrections

 is the deletion of the discussion

in the Board Note of the probable U.S. EPA error, since U.S. EPA

has now corrected that error.

 The Board invites comment on the

Amendment to the Board Note to Section 611.130(c).

Inorganic MCLs and BAT--Section 611.301

U.S. EPA corrected the spelling of “ultraviolet” irradiation

best available treatment technologies

 (BAT)

 in the key to the BAT

codes in 40 CFR 141.62(c)

at

 59 Fed. Reg.

34325

 (July

1,

 1994).

Since the Board corrected this misspelling in the original

adoption in R93-1,

 no change was necessary based on this federal

8

action.

 The Board invites comment on our action on Section

611

•

301.

Organic MCLs and BAT—-Section 611.311

U.S. EPA corrected 40 CFR 141.61 at

 59 Fed. Reg.

 34324—25

(July

1,

 1994).

 Subsection

(b)

 lists all the BAT for each

contaminant.

 U.S. EPA corrected the heading to the table by

removing “synthetic” because the table sets forth BAT for the

VOCS as well.

 U.S.

 EPA further corrected the table by

integrating the amendments of 57 Fed. Reg.

31846

 (July 17,

 1992)

into the pre—existing text.

 The format of those amendments had

the effect of replacing the prior table,

 rather than adding to

it.

 Finally, U.S.

 EPA corrected the MCL for aldicarb in

subsection

(c)

 from 0.003 mg/i to 0.002 mg/i.

The only amendment necessary for the Board was the

correction of the aldicarb MCL at Section 611.311(c).

We

properly integrated the table when making the R93-1 amendments,

and we never included

 a heading for the table,

 so those

amendments were not necessary.

We

note,

 however, that U.S.

EPA

indicated GAC as BAT for toxaphene.

 Therefore, we remove the

Board Note at the end of subsection

 (b) that discussed that based

on the preamble discussion of the rule,

 U.S.

 EPA apparently

intended GAC as BAT but used PTA in the text of the rule.

 Since

U.S. EPA has now indicated its intent by removing PTA as BAT for

this contaminant,

 that discussion is no longer necessary.

The

Board invites comment on our corrections to Section 311.611.

Applicability of Corrosion Control-—Section 611.351

U.S. EPA amended 40 CFR 141.81(c)

at

59

 Fed.

 Reg. 33862

(June 30,

 1994)

 by adding a sentence at the end of the

subsection.

 This statement clarifies that a small—sized or

medium—sized system supplier must implement corrosion control

treatment when it exceeds the lead or copper action level, even

if the supplier is deemed to have optimized corrosion control.

U.S.

 EPA stated at

59

 Fed. Reg.

 33861 that some persons were

confused at federal language in the second sentence of that

provision

 (i.e., whether “any such water system” excluded the

small—sized or medium—sized system supplier).

 The added sentence

makes it clear that this was not U.S. EPA’s intent.

35 Ill. Adm. Code 611.351(c) derives from 40 CFR 141.81(c).

In originally codifying subsection

 (C), the Board divided it into

several subsections.

 We further revised the language where it

was patently unclear.

 As a consequence, we do not see that

subsection

 (c) (2)

 is subject to the interpretation that U.S. EPA

now deems wrong.

 Nevertheless, the Board has added subsection

(c) (4) to embody the added federal clarifying language.

 We note

that we have deviated from the federal language slightly,

 in that

we have continued our use of “supplier”

 in place of the federal

9

“system”.

 The Board requests comment on our correction to

Section 611.351(c)

Lead Service Line Replacement——Section 611.354

U.S. EPA did not amend

 40 CFR 141.84

 in the present update

periods.

 Rather, this provision was the subject of litigation

in

federal court that resulted in a decision during the time—frame.

The court in American Water Works Association v.

 EPA,

 40 F.3d

1266

 (D.C.

 Cir.

 1994), vacated U.S. EPA’s definition of “control”

over a lead service connection to the extent it would require the

supplier to exert “control” over a privately—owned service

connection.

 Under this decision,

 U.S.

 EPA cannot require a

supplier to replace a lead service line

 if it lies on private

property.

 This

 is different from U.S.

 EPA’s approach under 40

CFR 141.84(d), which requires replacement of a lead service

 line

up to the building inlet unless it can demonstrate that it does

not control the line,

 and 141.84(e), which presumes supplier

control over the service line in the absence of certain proofs by

the supplier to the contrary.

In past actions

 (e.g.,

 the federal stay of the aldicarb

MCLs), the Board has indicated actions that render federal

requirements less than fully enforceable.

 Our statutory mandate,

under Section 17.5 of the Act, does not allow the Board to base

regulatory amendments on judicial or administrative decisions.

Rather, the Board explains the fault at the federal

 level and

states our intent that no one interpret the Illinois regulation

more stringently than the corresponding federal regulation.

In

the present instance,

 the Board followed this practice by stating

in the Board Note at Section 611.354(e) (2) (B)

 that the Illinois

definition

 of “control” over a service line should give the state

regulations the same effect as the federal definition gives the

U.S. EPA regulations.

 The Board invites comment on our approach

to

 the American Water Works case.

Water Quality Parameters-—Section 611.357

U.S. EPA amended 40 CFR 141.87 at 59

 Fed. Reg.

33862

 (June

30,

 1994)

 by revising the introductory text.

 U.S. EPA explained

that as originally drafted, the possible interpretation was that

only large system suppliers that exceed the lead or copper action

level would need to sample for water quality parameters.

To

clarify that this was not its intent,

 U.S. EPA added a comma

after “all large systems”

 in the opening language.

As for Section 611.351(c), the Board clarified the

corresponding Illinois regulation in its original adoption.

In

this instance, the Board added the comma for the sake of clarity,

so no substantive amendment is necessary.

 Therefore, the only

amendment is updating the end Board Note to include the Federal

Register citation to the federal amendment.

 The Board requests

10

comment on our approach to Section 611.357.

Reporting Requirements—-Section 611.360

U.S.

 EPA clarified 40 CFR 141.90(g) to expressly allow

10

days for reporting data on additional monitoring.

 U.S. EPA

stated that

 it originally expressly stated the 10—day limit with

regard to reporting other monitoring data elsewhere in this

section,

 and that the lack of a 10—day limit for additional

monitoring was potentially confusing.

The Board amended Section 611.360(g)

 to reflect the federal

10—day limit.

 The only amendment that deviates from the federal

amendments is the addition of the word “of” at the beginning of

this subsection to correspond with its appearance

 in the federal

base text.

 The Board invites comment on the amendments to

Section 611.360.

Updated Analytical Methods and Corrected Inorganic and

Microbiological Monitoring Requirements-—Sections

 611. 102,

611.359,

 611.526,

 611.531,

 611.611

 & 611.612

U.S. EPA amended the chart and introductory text of 40 CFR

141.89(a)

 at 59 Fed. Reg.

33862

 (June

30,

 1994).

 The amendments

were intended to correct typographical errors in the methods for

orthophosphate.

 U.S.

 EPA also used the opportunity to revise the

methods references to the latest versions of its own methods

manuals, Standard Methods,

 and ASTM references.

 Finally,

 U.S.

EPA sought to clarify the practical quantitation levels

 (PQLs)

for lead and copper in 40 CFR 141.89 (a) (1) (ii).

 This also

consolidated and changed the language describing reporting lead

and copper levels in that paragraph.

The Board amended the appropriate incorporations by

references

 in Section 611.102 and the methods listed

 in Section

611.359 to correspond with the federal amendments.

 This required

the addition and deletion of methods incorporated in Section

 611.102, and revisions to the stated availability of some

documents.

As

 is explained more fully below,

 U.S. EPA

consolidated the analytical methods for the lead and copper

program into the inorganic methods

 in 40 CFR 141.23(k), at 59

Fed. Reg. 62466 and 62470

 (Dec.

5,

 1994).

 The Board followed the

federal lead and consolidated the methods in corresponding

Section 611.611(a).

 This leaves a cross—reference at Section

611.359(a)

 to Section 611.611(a)

 for the methods.

As to the changes to define PQLs and reporting lead and

copper levels, the Board has effected the federal amendments with

minor deviation.

 We added the PQL definitions as parenthetical

language in Sections 61l.359(a)(1)(B)(i)

 and (a)(l)(B)(ii) to

make these both a single sentence that fits more neatly into the

11

broader structure of subsection

 (a) (1) (B).

 We also added the

PQLs as parenthetical language in subsection

 (a) (3)

 and added the

words “lead and copper”

 for the sake of clarity at that

subsection.

 Since the Board previously added

 a definition of PQL

to Section 611.350(b)

 based on the Federal Register preamble

discussion of this concept,

 we revised the Board Note reference

to cite the regulatory amendment as the source of this

definition.

 The Board invites comment on the amendments to

Section 611.359.

U.S. EPA amended 40 CFR 141.21(f)

at

 59 Fed. Reg. 62466

(Dec.

5,

 1994).

 This provision sets forth the microbiological

analytical procedures

 for coliform bacteria.

 The amendments

updated the existing methods, each of which

 is referenced

 in the

new 18th edition of Standard Methods, including the colilert

test,

 formerly available from Environetics,

 Inc.

 U.S. EPA also

approved a new test for the simultaneous detection of total

coliforms and E.

 Coli,

 the “colisure test”, available from

Millipore Corp.

U.S. EPA amended 141.74(a)

at

 59 Fed. Reg.

62470

 (Dec.

5,

1994), which sets forth the analytical and monitoring

requirements for demonstrating compliance with the filtration and

disinfection requirements.

 U.S. EPA updated the methods to the

18th edition of Standard Methods for total coliforms,

 fecal

coliforms, heterotrophic bacteria,

 free chlorine, total chlorine,

chlorine dioxide,

 and ozone,

 including the addition of 4500-Cl

E,

for total chlorine.

 A method from “Methods for the Determination

of Inorganic Substances in Environmental Samples”

 (abbreviated in

the rules as “U.S.

 EPA Environmental Inorganics Methods”) and one

from Great Lakes Instruments,

 Inc.

 (GLI) were approved for

turbidity measurement.

Section 611.526 of the Illinois regulations derives from 40

CFR 141.21(f),

 and Section 611.531 derives from 40 CFR 141.74(a).

The Board followed the federal microbiological, turbidity,

and

residual disinfectant methods amendments

 in Sections 611.526 and

611.531.

 We added the appropriate methods referenced by U.S. EPA

to the incorporations by reference in Section 611.102.

 For this

reason, we added definitions in Section 611.102(a)

 for “couisure

test” and “ONGP-MUG test”

 (by amending the former definition of

“MMO—MUG test”).

 In subsection

 (b), the Board has added the

appropriate methods,

 but we have also deleted the following,

having not found their surviving use elsewhere in the

regulations:

 Standard Methods

 (14th ed.):

 Method 214A;

 Standard

Methods (16th ed):

 Methods 212,

 214A,

 408C through 408F,

 410 B

and C,

 907A,

 908 through 908E, and 909 through 9098; Standard

Methods (17th ed.):

 2320,

 2510,

 2500,

 and 4500—03;

“Microbiological Methods for Monitoring the Environment, Water

and Wastes”, and the reference to Environetics,

 Inc. for the

colilert test.

 The Board invites comment on our update to the

12

analytical methods of Sections 611.526 and 611.531.

As already mentioned,

 the amendments at 59 Fed.

 Reg.

62466

(Dec.

5,

 1994)

 consolidated the inorganic chemical contaminant,

lead and copper,

 and sodium analytical methods into 40 CFR

141.23(k) (1),

 in a single table.

 U.S. EPA simultaneously amended

40 CFR 141.41(d)

 (special monitoring for sodium) and 141.89(a)

to

replace the methods formerly listed at those locations with

cross—references to the table of methods.

 Many of the methods

appear as updated versions of the same methods, with updates

references,

 and some are approvals of newer methods.

U.S.

 EPA amended 40 CFR 141.23 at 59

 Fed.

 Reg.

34323

 (July

1,

 1994)

 to make corrections to the text.

 One correction was the

consolidation of the two listings of inorganic methods,

 in former

paragraphs

 (k) (1)

and

 (k) (4),

 into a single table by the deletion

of former paragraph

 (k) (1)

 and the renumbering of former

paragraph

 (k) (4)

 to paragraph

 (k) (1).

 The corrections to

paragraphs

 (a) (1)

and

 (a) (2)

 replaced references to “the

compliance period beginning January

1,

 1993” to “the initial

compliance period”.

 The corrections

 to paragraphs

 (a)(5),

(f) (1),

and

 (i) (2)

 added antimony, beryllium, cyanide,

 nickel,

and thallium to the list of inorganic contaminants for which a

supplier must monitor.

 The corrections to the table of methods

at paragraph

 (a) (4) (i) corrected the listings for the atomic

absorption platform furnace method and removed a redundant

footnote to the concentration method for Method 200.7A because

the concentration method was already a part of the method.

At

paragraph

 (c) (1),

 U.S. EPA corrected “once every three years” to

“during each compliance period”.

 Finally,

 at a handful of

locations, paragraphs

 (c) (5) (iii),

 (i) (1),

 (i) (2),

 (k) (1), and

(q)(3),

 U.S. EPA corrected grammar and spelling errors.

The Board made the federal corrections to 40 CFR 141.23

in

the corresponding provisions where necessary.

 Since the Board

made some of the corrections in the original adoption of the

regulations, those corrections are unnecessary now.

 We amended

the table of detection limits in Section 611.600(d)

 to delete the

concentration method of 200.7A;

 all others of the corrections to

the table were made in initial adoption.

 The Board followed the

federal corrections and substituted “during each compliance

period” for “every three years” at Section 6l1.603(á)(l).

We

corrected Section 611.606(a)

 to add antimony, beryllium,

 cyanide,

nickel, and thallium.

 Although not prompted directly by a

parallel federal amendment,

 the Board added these five

contaminants to the listing in Section 611.603(g).

 We also

changed “and” to “or” at Section 611.609(a)

and

 (b), having

already made the other corrections to these provisions.

The

extensive renumbering of Section 611.611 was unnecessary, partly

because the initial deviation in structure from 40 CFR 141.23(k),

and partly because the amendments of December 5,

 1994 further

caused renumbering by deletion of provisions.

The

 Board invites

13

comment on our approach to the corrections

 to Sections 611.600,

611.601,

 611.603,

 611.609,

 and 611.611.

The Board amended Sections 611.359(a),

 611.611(a),

and

611.630(d)

 to correspond with the federal amendments.

 Where the

use

 of an updated reference or method supplants the use of

earlier editions,

 the Board made the appropriate additions and

deletions at Section 611.102.

 In the course of making these

amendments, we relied on federal amendments to the methods for

the secondary MCLs at 40 CFR 143.4(b),

 at 59 Fed. Reg. 62470

(Dec.

5,

 1994),

 to update the analytical methods for the state—

 only MCLS for iron, manganese,

 and zinc at Section 611.612(f).

Again,

 we then deleted the references

 in Section 611.102 to the

older methods.

 The Board invites comment on our approach to the

inorganic analytical methods of Sections 611.611 and 611.612 and

the incorporations by reference in Section 611.102.

U.S. EPA amended the special monitoring provision of Section

141.40 at

 59 Fed.

 Req.

62469

 (Dec.

5,

 1994)

 The only

unregulated inorganic contaminant is sulfate.

 U.S. EPA used a

cross reference to the methods for secondary contaminants at 40

CFR 143.4(b),

 as amended at

 59 Fed.

 Reg.

 62471,

 for the methods

for sulfate.

 The methods used were from the reference called

“U.S. EPA Environmental Inorganic Methods” by the Board, from

ASTM,

 and from Standard Methods

 (18th ed.).

 The Board codified

these at Section 611.510(b)(12).

 The Board invites comment on

our codification of the methods for the inorganic unregulated

contaminant at Section 611.510.

Updated Analytical Methods and Corrected Organic Monitoring

Requirements——Sections 611.641,

 611.642, 611.645, 611.646,

611.648

 & 611.685

U.S. EPA corrected 40 CFR 141.24 at 59 Fed. Reg.

34323

 (July

1,

 1994)

 and updated the analytical methods at 59 Fed. Reg.

62468

(Dec.

5,

 1994).

 The corrections included the removal and

reservation of subsections

(a)

 through

 (e), which pertained to

monitoring for the old MCL for endrin, which U.S. EPA removed in

the Phase V rules when it promulgated a new MCL for that

contaminant.

 Thus,

 since the Phase V regulations became

effective,

 40 CFR 141.24(a) through

 (e) were without substantive

effect.

 However,

 in updating the bC,

 SOC, and

TTHN

analytical

methods, at 59 Fed. Reg.

62468

 (Dec.

5,

 1994), discussed below,

U.S.

 EPA codified the updated methods as subsection

 (e).

Section 611.641 formerly corresponded with 40 CFR 141.24(a)

through

 (ci), and Section 611.642 corresponded with subsection

(e).

 Rather than repeal these two Sections, the Board has

consolidated former Section 611.642 into Section 611.641 as

subsection

 (ci).

 We revised the Board Notes to Section 611.641 to

indicate the broader former source of derivation of this

provision and to relate that this Section now applies only to

14

state—only MCLs

 (for aldrin,

 DDT, dieldrin, heptachior,

heptachior epoxide,

 2,4-D,

 and TTHM).

 The Board has retained

these provisions,

 rather than repeal them, because they provide

for monitoring and analyses for these state-only MCLs.

 Until

some interested person should justify the repeal of the state—

only MCLs

 in the context of

 a general rulemaking under Section 27

of the Act, we believe that we must retain these Section 611.641

requirements.’

 The Board invites comment on our retention of and

amendments to Section 611.641.

At 59 Fed.

 Reg. 34323

 (July

1,

 1994),

 U.S. EPA amended

40

CFR 141.24(f) (4),

 (f) (7),

 (f) (10),

 (f) (14),

 (f) (16),

 (h) (4) (i)

(h)(10),

and

 (h)(12) to correct the text.

 There is no need to

make corresponding amendments

 to the Illinois regulations for a

variety of reasons.

 The correction to paragraph

 (f) (4) was

limited to correcting a cross—reference citation format; the

Board originally substituted the language

 in Section 611.646(d).

The corrections to paragraphs

 (f) (7)

and

 (f) (10) were corrections

to references to “non—transient,

 non—community water systems”,

which the Board originally referred to properly as “NTNCWSs” in

Section 611.646(g).

 Paragraphs

 (f) (14)

and

 (h) (10) pertain to

composite sampling,

 for which there are no corresponding Illinois

provisions.

 The correction to paragraph

 (f) (16) was limited to

an incorporation by reference, which the Board properly codified

at Section 611.102; further,

 as discussed below,

 U.S.

EPA

subsequently removed and reserved paragraph

 (f) (16).

The

correction to paragraph

 (h) (4) (i)

 changed “the compliance period

starting January

1,

 1993”

 to “the initial compliance period”,

the

wording used initially by the Board in initially adopting

corresponding Section 611.648(d).

 The correction to paragraph

(h) (12) related to consolidation of endrin into this provision.

As is discussed below,

 the December 5,

 1994 amendments removed

this paragraph.

Parallel corrections to 40 CFR 141.24(f) (14) and 141.28

pertained to laboratory certification.

 40 CFR 141.24(f) (14)

provision corresponds with Section 611.646(t).

 U.S. EPA

substituted “certified laboratory” for “approved laboratory”.

Examination of the Illinois text revealed that not only was a

parallel amendment necessary to subsection

 (t), but also to

subsections

 (q),

 (q)(1), and

 (q)(2).

 40 CFR 141.28 corresponds

with Section 611.490 of the Illinois regulations.

 Since the

Board already used “certified laboratory” in both the Section

heading and text of that provision, no amendment was necessary.

The Board invites comment on these corrections to Sections

Alternatively, proof that these provisions render the

 Illinois drinking water program less stringent than or

inconsistent with the federal requirements would justify their

removal using identical—in-substance procedures.

15

611.646 and 611.648.

At 59 Fed. Reg.

 34323,

 U.S.

 EPA removed and reserved 40 CFR

141.24(g),

 which pertained to monitoring for the Phase

I

 VOCs..

As previously observed by the Board in docket R93-1,

the

expansion of federal subsection

 (h) rendered subsection

(g)

without substantive effect.

 The Board has repealed corresponding

Section 611.647 as

 a result.

 The Board invites comment on the

repeal of Section 611.647.

At 59 Fed. Reg. 62468-69

 (Dec.

5,

 1994),

 U.S.

 EPA updated

and consolidated nearly all the organic chemical

 (VOC,

 SOC, and

TTHM)

 methods.

 U.S.

 EPA removed and reserved 40 CFR

141.24(f) (16) and

 (h)(12).

 It codified

 a table of all the

methods at 40 CFR 141.24(e).

 Most of the updated and new methods

are from the reference that the Board has termed “U.S. EPA

Organic Methods”.

 However,

 U.S. EPA has continued to use the

method the Board terms

 “Dioxin and Furan Method

 1613” and added

two Standard Methods

 (18th ed.) methods:

 Method 6610

 (for

carbofuran and oxamyl)

 and Method 6651

 (for glyphosate).

 U.S.

EPA further amended

 40 CFR 141.24(h) (13)

 and 141.30(e) to refer

to 40 CFR 141.24(e)

 for methods for the analysis of PCB5 and

TTHMs, respectively.

The Board codified this table of methods at Section 611.645

and updated the incorporations by reference at Section 611.102

appropriately.

 We replaced Sections 611.646(p)

 and 611.648(1)

with statements explaining the U.S. EPA removal of these

subsections.

 The Board also amended Sections 611.648(m)

and

611.685 to refer to Section 611.645 for the methods for PCB5 and

TTHMs.

 By listing the methods for each contaminant in numerical

order, we deviated from the federal text,

 since we had no

indication that the federal order indicated a preference among

the various methods for that species.

One potential problem may exist with the federal method

updates at 40 CFR 141.23

 and 141.24,

 as well as 141.40.

 U.S.

EPA

appears to be using its reference “Technical Notes on Drinking

Water Methods” to modify or extend its chosen express regulatory

language.

 It refers to this document as presenting methods

available until

 a certain date in the future, and it appears to

refer to this document for either additional methods or for

further instruction on the use of the methods.

 If U.S. EPA is

 using this as a guideline in IDlace of or to supersede its express

regulatory provisions,

 this could present codification problems

for the Board.

 The Board intends to review that document before

proceeding to adopt any regulations based on this proposal.

We incorporated certain of the chemical contaminants for

which there is a state-only requirement

 (an old NCL) into the

newly-centralized table of methods.

 The added state-only

contaminants are those

 for which U.S. EPA did not already set

16

forth

 a method

 (because there

 is not already a less—stringent

federal MCL and analytical requirement).

 Those contaminants are

aidrin,

 DDT,

 and dieldrin.

 The methods used,

 Methods 505,

 508,

508.1, and 525.2 for aidrin and dieldrin, and 505 and 508 for

DDT, are those indicated for those contaminants as unregulated

contaminants

 (aidrin and dieldrin)

 in 40 CFR 141.40(n) (11)

or

those we used in the past based

 on representations in the methods

that they are capable of determining these contaminants

 (DDT).

The Board did not make one particular amendment made by U.S.

EPA.

 U.S. EPA removed Appendix C to 40 CFR 141,

 Subpart C at 59

Fed. Reg. 62469

 (Dec.

5,

 1994).

 Inquiry with one of the U.S. EPA

technical contacts listed in the Federal Register notice

 indicated that this was an error.

 We therefore retained our

reference to this federal appendix.

 The Board invites comment on

our table of updated organic analytical methods at Section

611.645.

U.S. EPA amended the special monitoring provision of Section

141.40 at 59 Fed.

 Reg.

34323

 (July

1,

 1994)

and

 59 Fed. Reg.

62469

 (Dec.

5,

 1994).

 It updated the methods for the unregulated

organic contaminants and added aldicarb,

 aldicarb sulfone, and

aldicarb sulfoxide to the list of unregulated contaminants for

which it prescribes methods.2

 U.S.

 EPA updated the existing

methods and added new methods

 for the contaminants.

 The methods

used were from the reference called

 “U.S.

 EPA Organic Methods” by

the Board and from Standard Methods

 (18th ed.).

 An additional

correction in the July

1,

 1994 action replaced the listing for

the unregulated contaminant chlorobenzene, already regulated as

a

Phase

 II VOC, with dibromornethane, which U.S.

 EPA erroneously

omitted from the table.

The Board codified the updated organic unregulated

contaminant analytical methods at Section 611.510(b)(11).

We

made the substitution of dibromoinethane for chlorobenzene at

subsection

 (a) (5).

 Based on the July 1,

 1994 corrections, we

 further substituted “laboratory certified” for “laboratory

approved” at subsection

 (c).

 Others of the July

1,

1994

corrections resulted in no amendments.

 These federal corrections

that did not result in amendments included changing “chemicals”

in the section heading to “contaminants”, which the Board had

already done; corrections to 40 CFR 141.40(g)

and

 (n) (11), which

were superseded by December 5,

 1994 amendments; and corrections

to 40 CFR 141.40(j),

 which pertains to optional monitoring

requirements that the Board never adopted.

 The Board invites

2

 U.S. EPA prescribed MCLs for these contaminants as part

of the Phase bIB rules, but subsequently administratively stayed

the MCLs, without affecting the requirement for monitoring these

contaminants.

17

comment on our codification of the methods for the inorganic

unregulated contaminant at Section 611.510.

Waiver of Cyanide Monitoring Requirements—-Sections

 611.110,

611.130,

 and 611.603

At 59 Fed.

 Reg. 34322

 (Dec.

5,

 1994),

 U.S.

 EPA added a

provision to 141.23(c) (2)

 that allows waivers of the cyanide

monitoring requirements where there

 is proven no source of

industrial cyanide to which the supplier’s water is vulnerable.

The Board added this provision for waivers from the cyanide

 monitoring requirements, choosing the now familiar mechanism of

the special exception permit

 (SE?)

 to allow the Agency to obviate

the requirements.

 However, we did not follow the federal

structure in placing the waiver provision at corresponding

Section 611.603(b).

At Section 611.603(b), the Board deviated from the federal

structure and divided subsection

(b)

 into two subsections.

As

subsection

 (b) (2)

 the Board stated that the supplier may apply to

the Agency for

 a SEP pursuant to subsections

(d)

 through

 (if)

and

Sections 611.110

 (the general SEP provision).

 New subsection

(g)

sets forth the language parallel to the federal language.

An

addition to subsection

(e)

 makes relief from the cyanide

monitoring requirements subject to the same limitations as relief

front the VOC and SOC monitoring requirements

 from which this

relief is available.

 The federal language of the vulnerability

waiver lacks definiteness that we believe is necessary to aid

suppliers and the Agency in using this relief.

One deviation from the federal language warrants further

discussion,

 in order to avoid any misunderstanding that could

jeopardize state primacy in the drinking water program.

The

Board uses “the Agency shall” where the federal language reads

“the state may”.

 The Board is compelled to use the imperative

 sense under Illinois administrative law because once the Agency

has made the necessary determination

 (in this instance, that the

suppliers water is not vulnerable), the Agency has no discretion

but to grant the SEP.

 However, this does not mean that the

Agency is compelled to grant a SEP upon request.

 The Agency

retains full discretion in making its necessary prerequisite

determination (on vulnerability).

 If the supplier fails to fully

satisfy the Agency,

 so that it can make its determination, the

Agency

 is not bound to make the determination.

 The Board

 invites

comment on our approach to the cyanide monitoring waiver

provisions.

Mandatory Health Effects Notices--Section 611.Appendix A

U.S. EPA made minor corrections of typographic errors to the

mandatory health effects notices of 40 CFR 141.32(e) at 59 Fed.

Reg. 34323

 (July

1,

 1994).

 Corrected were the notices for

18

chiordane

 (paragraph

 (e) (30)), cis—1,2—dichloroethylene

(paragraph

 (e) (33)),

 l,2-dichloropropane (paragraph

 (e) (35)),

heptachlor epoxide

 (paragraph

 (e) (41)),

 and di(2—ethylhexyl)—

phthalate

 (paragraph

 (e) (62)).

 The Board corrected all but one

of these errors

 in originally adopting the notices.

 Therefore,

the Board amends Section 611.Appendix A(62)

 to change “0.004

parts per million” to “0.006 parts per million”.

 The Board

invites

 comment on

 our correction to the mandatory health effects

notice for di(2—ethylhexyl)phthalate at Section 611.Appendix

A(62).

SDWA REGULATORY HISTORICAL SUNNARY

The Board adopted the initial round of U.S.

 EPA drinking

water regulations,

 including the “Phase

 I” rules, adopted by U.S.

EPA prior to June

30,

 1989,

 as follows:

R88—26

 114 PCB 149, August

9,

1990

 (14 Ill.

 Reg.

 16517,

effective September 20,

 1990)

Subsequent dockets updated the regulations

 to include federal

amendments since that time:

R90—4

 112 PCB 317, dismissed June

21,

1990

 (no U.S.

EPA

amendments July

 1 through December 31,

 1989)

R90—13

 117 PCB 687, December 20,

1990

 (15 Ill.

 Reg.

 1562,

effective January 22,

 1991)

 (January

1,

1990

through June 30,

 1990)

R90—21

 116 PCB 365, November 29,

1990

 (14 Ill. Reg.

20448, effective December

11,

 1990)

 (Corrections

to R88—26)

R91—3

 137 PCB 253, November 19,

1992

 (16 Ill. Reg.

19010, December 11,

 1992,

 effective December

1,

1992)

 (U.S.

 EPA Phase II and Coliforms——

consolidated with R92—9; July

1,

 1990 through

January 31,

 1991)

R9l—15

 137 PCB 627, dismissed December

3,

1992

 (no U.S.

EPA amendments February

1,

 1991 through May 31,

1991)

R92—3

——

PCB

——,

May

6,

1993

 (17 Ill.

 Reg.

 7796, May

28,

 1993, effective May 18,

 1993)

 (U.S.

 EPA Phase

IIB and Lead and Copper rules; June 1, 1991

through December 31,

 1991)

R92—9

 137 PCB 253, November 19,

1992

 (16 Ill. Reg.

19010,

 December 11,

 1992,

 effective December

1,

1992)

 (Corrections to Phase

 I rules, R88—26——

consolidated with R9l—3)

19

R92—l2

 137 PCB 725, dismissed December

3,

1992

 (no U.S.

EPA amendments June

1,

 1992 through June

30,

 1991)

R93—1

——

PCB

——,

 July

14,

1993

(17

 Ill.

 Reg.

 12648,

August

6,

 1993,

 effective July

23,

 1993)

 (U.S.

EPA

Phase V rules; July

1,

 1992 through December 31,

1992)

R93—19

-—

PCB

-—,

 dismissed September 23,

1993

 (no U.S.

EPA amendments January

 1 through June

30,

 1993)

R94—4

——

PCB

——,

 July 21,

1994

(18

 Ill. Reg.

 12291,

August

5,

 1994, effective July 28,

 1995)

 (TTHM

analytical methods; July

1,

 1993 through December

31,

 1993)

R94-23

 This docket (January

1,

 1994 through June

30,

1994)

R95-3

 This docket (July

1,

 1994 through December

31,

1994)

AGENCY OR BOARD ACTION?

Section 7.2(a)(5) of the Act requires the Board to specify

which decisions U.S. EPA will retain.

 In addition, the Board is

to specify which State agency is to make decisions based on the

general division of functions within the Act and other Illinois

statutes.

In situations where the Board has determined that U.S.

EPA

will retain decision-making authority, the Board has replaced

“Regional Administrator” with U.S.

 EPA,

 so as to avoid specifying

which office within U.S. EPA is to make a decision.

In a few instances, decisions are not appropriate for Agency

action pursuant to a permit application.

 Among the

considerations in determining the general division of authority

between the Agency and the Board are:

1.

 Is the person making the decision applying a Board

regulation,

 or taking action contrary to

 (“waiving”)

 a Board

regulation?

 It generally takes some form of Board action to

“waive”

 a Board regulation.

2.

 Is there a clear standard for action such that the

Board can give meaningful review to an Agency decision?

3.

 Does the action result

 in exemption from the permit

requirement itself?

 If so, Board action

 is generally

required.

20

4.

 Does the decision amount to “determining,

 defining or

implementing environmental control standards” within the

meaning of Section 5(b)

 of the Act?

 If so,

 it must be made

by the Board.

There are four common classes of Board decision:

 variance,

adjusted standard, site specific rulemaking,

 and enforcement.

The first three are methods by which a regulation can be

temporarily postponed

 (variance)

 or adjusted to meet specific

situations

 (adjusted standard or site specific rulemaking).

 Note

that there often are differences in the nomenclature for these

decisions between the U.S.

 EPA and Board regulations.

EDITORIAL CONVENTIONS

As

 a final

 note,

 the federal rules have been edited to

establish a uniform usage throughout the Board’s regulations.

For example, with respect to “shall”,

 “will”,

 and “may”,

 “shall”

is used when the subject of a sentence has to do something;

“must”

 is used when someone has to do something, but that someone

is not the subject of the sentence; “will”

 is used when the Board

obliges itself to do something,

 and “may”

 is used when choice of

a provision is optional.

As

 to the conjunctions,

 “or”

 is used

rather than “and/or”, and denotes “one or both”; “either

or”

denotes

“one

but

not

both”;

and

“and”

denotes

“both”.

ORDER

The Board will promptly submit these proposed amendments to

the Secretary of State for publication in the Illinois Register.

TITLE

35:

 ENVIRONMENTAL PROTECTION

SUBTITLE

F:

 PUBLIC WATER SUPPLIES

CHAPTER

I:

 POLLUTION CONTROL BOARD

PART 611

PRIMARY

DRINKING

WATER

STANDARDS

SUBPART

GENERAL

Section

611.100

 Purpose, Scope and Applicability

611.101

 Definitions

611.102

 Incorporations by Reference

611.103

 Severability

611.107

 Agency Inspection of ?WS Facilities

611.108

 Delegation to Local Government

611.109

 Enforcement

611.110

 Special Exception Permits

611.111

 Section 1415 Variances

611.112

 Section 1416 Variances

611.113

 Alternative Treatment Techniques

611.114

 siting requirements

611.115

 Source Water Quantity

21

611.120

 Effective dates

611.121

 Maximum Contaminant Levels and

Finished Water Quality

611.125

 Fluoridation Requirement

611.126

 Prohibition

on Use of Lead

611.130

 Special

Requirements

 for Certain Variances and Adjusted Standards

SUBPART

B:

 FILTRATION AND DISINFECTION

Section

611.201

 Requiring

 a Demonstration

611.202

 Procedures for Agency Determinations

611.211

 Filtration Required

611.212

 Groundwater under Direct Influence

of Surface Water

 611.213

 No Method of HPC Analysis

611.220

 General Requirements

611.230

 Filtration Effective Dates

611.231

 Source Water Quality Conditions

611.232

Site—specific

Conditions

611.233

 Treatment Technique Violations

611.240

Disinfection

611.241

Unfiltered

 PWSs

611.242

 Filtered PWSs

611.250

 Filtration

611.261

 Unfiltered

 PWSs:

 Reporting and Recordkeeping

611.262

 Filtered PWSs:

 Reporting and Recordkeeping

611.271

 Protection during Repair Work

611.272

 Disinfection following Repair

SUBPART C:

 USE OF MON-CENTRALIZED TREATMENT DEVICES

Sect ion

611.280

 Point-of-Entry Devices

611.290

 Use of Point—of—Use Devices or Bottled Water

SUBPART

0:

 TREATMENT TECHNIQUES

Section

611.295

 General

Requirements

611.296

Acrylamide

and

Epichiorohydrin

611.297

CorrosiOn

Control

SUBPART

F:

 MAXIMUM CONTAMINANT LEVELS

(MCL’S)

Sect ion

611.300

old

MCLs for Inorganic Chemicals

611.301

Revised

MCLs

for

Inorganic

Chemicals

611.310

old

MCLs for Organic Chemicals

611.311

 Revised

MCLs

for

Organic

Contaminants

611.320

Turbidity

611.325

 Microbiological

Contaminants

611.330

 Radium

and Gross Alpha Particle Activity

611.331

 Beta Particle and Photon Radioactivity

SUBPART

LEAD

AND

COPPER

Section

611.350

General

Requirements

611.351

Applicability

Corrosion

Control

611.352

Corrosion

Control

Treatment

611.353

Source

Water

Treatment

611.354

Lead

Service

Line

Replacement

611.355

Public

Education

and

Supplemental

Monitoring

611.356

Tap

Water

Monitoring

for

 Lead and copper

611.357

 Monitoring for Water Quality Parameters

611.358

Monitoring

for

Lead

and

Copper

Source

Water

611.359

Analytical

Methods

611.360

 Reporting

22

611.361

Section

611.480

611.490

611.491

611.500

611.510

Section

611.521

611.522

611.523

611.524

611.525

611.526

611.527

611.531

611.532

611.533

Section

611.560

Section

611.591

611.592

611.600

611.601

611.602

611.603

611.604

611. 605

611.606

611. 607

611.608

611.609

611.610

611.611

611.612

611. 630

611. 631

Section

611. 640

611.641

611.645

611.646

611.647

611.648

611.650

61.

657

611.658

Recordkeeping

SUBPART K:

 GENERAL MONITORING AND ANALYTICAL REQUIREMENTS

Alternative Analytical

 Techniques

Certified Laboratories

Laboratory Testing Equipment

Consecutive PWSs

Special Monitoring

 for Unregulated Contaminants

SUBPART L:

 MICROBIOLOGICAL

MONITORING

 AND ANALYTICAL REQUIREMENTS

Routine Coliform Monitoring

Repeat Cotiform Monitoring

Invalidation of Total Coliform Samples

 Sanitary Surveys

Fecal Coliform and

 E. Coli Testing

Analytical Methodology

Response to Violation

Analytical Requirements

Unfiltered PWSs

Filtered PWSs

SUBPART H:

 TURBIDITY MONITORING AND ANALYTICAL REQUIREMENTS

Turbidity

SUBPART

N:

 INORGANIC MONITORING AND ANALYTICAL REQUIREMENTS

Violation of State MCL

Frequency of State Monitoring

Applicability

Monitoring

 Frequency

Asbestos Monitoring Frequency

Inorganic Monitoring Frequency

Nitrate Monitoring

Nitrite Monitoring

Confirmation Samples

More Frequent Monitoring

 and Confirmation Sampling

Additional Optional Monitoring

Determining Compliance

Inorganic Monitoring Times

Inorganic Analysis

Monitoring

Requirements

for

Old

Inorganic

MCLs

Special Monitoring for Sodium

Special Monitoring for Inorganic Chemicals

SUBPART 0:

 ORGANIC MONITORING AND ANALYTICAL REQUIREMENTS

Definitions

old

MCL5

Analytical Methods for

Old ~CLs0rganic

 Chemical Contaminants

Phase

I, Phase

II,

 and Phase V Volatile Organic Contaminants

Sampling for Phase

 I Volatile Organic Contaminants (Re~ealed~

Phase II, Phase 118, and Phase V Synthetic Organic Contaminants

Monitoring

 for 36 Contaminants

 (Repealed)

Analytical Methods

 for 36 Contaminants

 (Repealed)

Special Monitoring

 for Organic chemicals

Section

SUBPART

THM

MONITORING

AND

ANALYTICAL

REQUIREMENTS

Sampling,

 Analytical

 and other Requirements

Reduced Monitoring Frequency

Averaging

Analytical Methods

Modification to System

SUBPART

Q:

 RADIOLOGICAL MONITORING AND ANALYTICAL

REQUIREMENTS

Analytical Methods

Cross Alpha

Manmade

Radioactivity

SUBPART

T:

 REPORTING,

 PUBLIC NOTIFICATION AND RECORDKEEPING

611.Appendix

6l1.Appendix

0

611.Appendix

611.Table

611.Tab.e

B

611.Table C

61l.Table

611.Table

Mandatory Health Effects Information

Percent

 Inactivation of C. Lamblia Cysts

Common

Names

Organic

 Chemicals

Defined

Substrate

Method

for

 the Simultaneous Detection of

Total Coliforms and Eschricia Coli

 from

Drinking

Water

Mandatory Lead Public Education Information

Total Coliform Monitoring Frequency

Fecal or

Total

Coliforrn

Density

Measurements

Frequency

RDC

Measurement

Number of Lead and Copper Monitoring Sites

Lead

and

Copper

Monitoring

Start

Dates

Number of Water Quality Parameter Sampling Sites

Summary

 of Monitoring Requirements

 for Water Quality

Parameters’

Federal Effective Dates

AUTHORITY:

Implementing

Sections

 and 17.5 and authorized by Section 27

the Environmental

Protection

Act

(-Ill.

fl~v.

Ctc~t.

19~1,

~h.

111½,-pare.

1017,

1017.5

and

1027

(415

ILCS

5/li,

5/17.5

and

5/27+.

SOURCE:

Adopted

R88—26

Ill.

Req.

16517,

effective

September

20,

1990;

amended

R90—21

Ill.

Req.

20448,

effective

December

11,

1990;

amended

R90—l3

Ill.

Req.

1562,

effective

January

22,

1991;

amended

R91—3

111.

Reg.

19010,

December

1992;

amended

R92—3

Ill.

Reg.

7796,

effective

May

18,

1993;

amended

R93—l

Ill.

Req.

12650,

effective July 23,

 1993;

 amended in

 R94—4

at

 18 Ill.

 Req.

 12291, effective

July 28,

 1994;

amended

R94—23

Ill.

Rec~.

effective

Note:

Capitalization

denotes

statutory

language.

611. 680

611. 683

611.684

611.685

611. 686

Section

611.720

611.

731

611.732

Section

611. 830

611.831

611. 832

611.833

611.840

611.851

611.852

611.853

 611.854

611.855

611.856

611.858

611.860

611.870

Applicability

Monthly

Operating

Report

Notice

Agency

Cross Connection Reporting

Reporting

Reporting MCL and other Violations

Reporting other Violations

Notice to New Billing Units

General Content

 of Public Notice

Mandatory Health Effects Language

Fluoride Notice

Fluoride Secondary Standard

Record Maintenance

List of 36 Contaminants

SUBPART A:

 GENERAL

24

Section 611.100

 Purpose,

 Scope and Applicability

a)

 This Part satisfies the requirement of Section 17.5 of the

Environmental

Protection

Act

(Act)

(Ill.

Rev.

Stat.

1988-

Supp.,

ch.

ill

1/2.

par.

1001

acq.)14l5

ILCS

that

the

Board

adopt

regulations which

 are identical in substance with federal

regulations promulgated by the United States Environmental

Protection Agency (U~S~.EPA)pursuant to Sections 1412(b),

1414(c),

1417(a)

and

1445(a)

the

Safe

Drinking

Water

Act

(SDWA)

(42

U.S.C.

300f

seq.)

b)

 This Part establishes primary drinking water regulations

 (NPDWRs)

pursuant to the SDWA,

 and also includes additional,

 related State

requirements which are consistent with and more stringent than the

U~S~EPAregulations

 (Section 7.2(a)(6)

 of the Act).

The

 latter

provisions are specifically marked as “additional State

requirements”.

 They apply only community water systems

 (CWS5).

c)

 This Part applies to “suppliers”,

 owners and operators of “public

water systems”

 (“PWSs”).

 PWSs include CWSs,

 “non—community water

systems

 (~‘non—CWSs”) and “non—transient non—community water

systems (“NTNCWSs’~),as these terms are defined

 in Section

611.101.

1)

CWS

suppliers

are

required

obtain

permits

from

the

Illinois Environmental

 Protection Agency

 (Agency)

 pursuant

to 35 Ill. Adm. Code 602.

2)

 Non-CWS suppliers are subject to additional regulations

promulgated

 by the Illinois Department

 of Public Health

(Public Health) pursuant to Ill.

 Rev. Stat.

 1989,

oh.

111

-1J2,

 par. 74S9Section

 9 of the Illinois Groundwater

Protection Act

 t415

 ILCS

55/91,

 including 77 Ill. Adm. Code

900.

Non—CWS

suppliers

are

not

required

obtain

permits

other

approvals

from

the

Agency,

file

reports

other

documents

with

the

Agency.

Any

provision

this

Part

providing is to be understood as requiring the non—CWS

supplier to obtain the comparable form of approval

 from,

or

to file the comparable report or other document with Public

Health.

BOARD

NOTE:

Derived

from

CFR

141.1

(19894).

This

Part

applies

each

PWS,

unless

the

PWS

meets

all

the

following

 conditions:

1)

 Consists only of distribution and storage facilities

 (and

does

not

have

any

collection

and

treatment

 facilities);

Obtains

all

its

water

from,

but

not

owned

operated

by,

supplier

which

such

regulations

apply;

3)

 Does not sell water to

 any person; and

4)

 Is not

 a carrier which conveys passengers

 in interstate

commerce.

BOARD

NOTE:

Derived

from

CFR

141.3

(19894).

Some

subsection

labels

have

been

omitted

order

maintain

25

local consistency between

U~S,~EPAsubsection

 labels and the

subsection labels in this Part.

Section 611.101

 Definitions

As used in this Part,

 the term:

“Act” means the Environmental Protection Act

 (Ill.

1991,

oh.

l11~,

par.

1001

~cq.

(415

ILCS

“Agency’s

means

the

Illinois

Environmental

Protection

Agency.

BOARD NOTE:

 The Department of

 Public Health

 (“Public Health”)

regulates

non-community water supplies (“non—CWSB”,

 including non—

transient,

 non-community water supplies

 (“NTNCWSs”) and transient

non—community water supplies (“transient non—CWSs’~)). For the

purposes

of regulation of supplies by Public

Health

reference

this

Part,

“Agency”

shall

mean

Public

Health.

‘~Ai”

means “inactivation ratio”.

“Approved source

of bottled water”,

 for the purposes of

Section 611.130(e) (4), means

a

 source of water and the water

therefrom,

 whether it

be

 from a

spring, artesian well,

drilled well,

 municipal water supply,

 or any other source,

that has been inspected

 and the water sampled,

 analyzed,

and

found to be a safe and sanitary quality according to

applicable laws and regulations

of

 State and local

government agencies having

 jurisdiction, as evidenced by the

presence

in the plant of current certificates or notations

approval

from

each

government

agency

 or agencies having

jurisdiction over the source,

the

water it bottles,

 and the

distribution

the

water

commerce.

BOARD

NOTE:

Derived

from

CP’R

142.62(g)(2)

and

CFR

129.3(a)

(l99~).

The

Board

cannot

compile

exhaustive

listing

all

federal,

state,

and

local

laws

which

bottled water and bottling water may

subjected.

However,

the statutes and regulations

of which the Board is aware are

the

following:

the

Illinois

Food,

Drug

and

Cosmetic

Act

+1410

ILCS

620,

formerly

 Ill.

 fey.

 Stat.

1991

oh.

 S-6½,- par.

501

ocq.)~,

the

Bottled

Water

Act

+1815

ILCS

 310.,-

formerly

 Ill.

 fey,

 Stat.

 1991 oh.

 111½,

 par.

 121.101)1,

the

DPH

Water

Well

Construction

Code

(77

Ill.

Adm.

Code

920),

the

DPH

Water

Well

Pump

Installation

Code

(77

Ill.

Adm.

Code

925),

 the federal bottled water quality standards

 (21 CFR

103.35),

 the federal drinking water processing and bottling

standards (21

CFR

129),

 the federal Good Manufacturing

Practices for human

 foods

(21

 CFR 110),

 the federal Fair

Packaging

and

Labeling

Act

(15

U.S.C.

1451

seq.),

and

the

 federal Fair Packaging and Labeling regulations

 (21 CFR

201).

“Best available technology” or “BAT” means the best technology,

treatment techniques or other means that U.S. EPA has found are

available

for

the

contaminant

question.

BAT

specified

Subpart

this

Part.

BOARD

NOTE:

Derived

from

CFR

141.2

(l99~).

“Board”

means

the

 Illinois

Pollution

Control

Board.

“CAS

 Not’ means “Chemical Abstracts Services Number”.

“CT”

“CT,,,~,” is

the

product

~‘residual

disinfectant

26

concentration”

 (RDC or

C)

in

rng/L

 determined before or at

the

first customer,

 and the corresponding

 “disinfectant contact time”

(T)

 in minutes.

If

 a supplier applies disinfectants at more than

one point prior to the

 first customer,

 it shall determine the CT

of each disinfectant sequence before or

 at the first customer

to

determine the total percent inactivation or “total inactivation

ratio”.

 In determining the total inactivation ratio,

 the supplier

shall determine the

RDC

of each disinfection sequence and

corresponding contact time before any subsequent disinfection

application point(s).

 (See “CT~”)

BOARD

NOTE:

Derived

from

CFR

141.2

(1994).

“CT~9” is the CT value required

 for 99.9 percent

 (3—log)

inactivation of Giardia lamblia cysts.

 CT~9 for

 a variety of

disinfectants and conditions appear

 in Tables 1.1—1.6,

 2.1 and 3.1

of Section 61l.Appendix

B.

 (See “Inactivation Ratio”.)

BOARD

NOTE:

Derived

from

the

definition

“CT”

CFR

141.2

(199~).

“Coagulation” means a process using coagulant chemicals

 and mixing

by which colloidal

 and suspended materials are destabilized and

agglomerated

 into flocs.

BOARD NOTE:

 Derived from

 40 CFR 141.2

 (19934).

“Community Water System” or “CWS” means

 a public water system

(PWS) that serves

at

 lea.~t15 service connections used by year—

round residents or regularly serves

at

 least

 25 year—round

residents.

BOARD NOTE:

 Derived

 from 40 CFR 141.2

 (19934).

 This definition

differs slightly from that

of

 Section 3.05

 of the Act.

“Compliance cycle” means

 the nine—year calendar year cycle during

which public water systems

 (PWS5) must monitor.

 Each compliance

cycle consists of three three—year compliance periods.

 The first

calendar cycle begins January

1,

 1993,

 and ends December 31,

 2001;

the second begins January

1,

 2002 and ends December

31,

 2010;

the

third

begins

January

2011,

 and ends December

31,

 2019.

BOARD NOTE:

 Derived

 from 40 CFR 141.2

 (1993-i).

“Compliance period” means

 a three—year calendar year period within

a compliance cycle.

 Each compliance cycle has three three—year

compliance

periods.

Within

the

first

compliance

cycle,

the

first

compliance period runs from January

1,

1993,

December

31,

1995;

the second

 from January

1,

 1996,

 to December

31,

 1998;

 the third

from January

1,

 1999,

 to December

31,

 2001.

BOARD NOTE:

 Derived from 40 CFR 141.2

 (199~34).

“Confluent growth” means

 a continuous bacterial growth covering

the entire filtration area of

 a membrane filter or a portion

thereof,

 in which

bacterial colonies are not discrete.

BOARD NOTE:

 Derived from 40 CFR 141.2

 (1993.4).

“Contaminant” means

 any physical,

 chemical,

 biological or

radiological

substance

matter

water.

BOARD

 NOTE:

 Derived from 40 CFR 141.2

 (1993.4).

“Conventional

 filtration treatment” means

 a series of processes

including coagulation,

 flocculation,

 sedimentation and filtration

resulting

 in substantial particulate

removal.

BOARD NOTE:

 Derived from 40 CFR 141.2

 (1993.4).

“Diatomaceous earth filtration” means

 a process resulting in

27

substantial particulate removal

 in which:

A precoat cake of diatomaceous earth

 filter media

is

deposited

support

membrane

(septum);

and

While the

water is

filtered

passing

through

the

cake

the

septum,

 additional filter media known as body feed

is

continuously added to

the

feed water to maintain the

permeability of the filter cake.

BOARD

NOTE:

 Derived from 40

CFR

141.2

(199~4).

“Direct

 filtration” means

 a series of processes including

coagulation

and filtration but excluding sedimentation resulting

in

substantial particulate removal.

BOARD NOTE:

 Derived from 40

 CFR 141.2

 (1993.j).

“Disinfectant” means any oxidant,

 including

but

not limited to

chlorine, chlorine dioxide,

 chloramines and ozone added to water

in

any part of

the treatment or distribution process, that is

intended

kill

inactivate

pathogenic

microorganisms.

BOARD NOTE:

 Derived from 40

CFR

 141.2

 (19934).

“Disinfectant contact time” or

 “T” means the

time in minutes that

it takes

 for water

to move

 from the point of disinfectant

application

the

point

RDC

measurement

point

before or

 at the point where RDC

 is measured.

Where only one

RDC

measured,

the

time

minutes

that

takes

for

water

move

from

the

point

disinfectant application

 to a point before or at where

RDC

is measured,

Where more than one RDC is measured,

 T is:

For the first measurement of

RDC,

 the time in minutes

that

 Lt takes for water to move from the first or only

point of disinfectant application to a point before or

at the point where the first RDC is measured and

For subsequent measurements of

RDC,

 the time in

minutes that it takes for water to move from the

 previous

RDC

measurement point to the

RDC

 measurement

point for which the particular T

 is being calculated.

T in pipelines must be calculated based on “plug flow” by

dividing the

 internal volume of the pipe by the maximum

hourly flow rate through that pipe.

T within mixing basins and storage reservoirs must be

determined by tracer studies or an equivalent demonstration.

BOARD NOTE:

 Derived from 40 CFR 141.2

 (1993~4).

“Disinfection” means

 a process that inactivates pathogenic

organisms in water by chemical oxidants or equivalent agents.

BOARD NOTE:

 Derived

 from 40 CFR 141.2

 (19934).

“Distribution system”

includes all points downstream of an “entry

point” to

the point of consumer ownership.

“Domestic or other non—distribution system plumbing problem” means

a coliform contamination problem in

 a PWS with more than one

service connection that

is

 limited to the specific service

28

connection

 from which the coliform—positive sample was taken.

BOARD NOTE:

 Derived

 from 40 CFR 141.2

 (19934).

“Dose equivalent” means the product of the absorbed dose from

ionizing radiation and such factors

 as account for differences in

 biological effectiveness

 due to the type of radiation and its

distribution in the body

 as specified by the International

Commission on Radiological Units and Measurements

 (ICRU).

BOARD

NOTE:

 Derived

 from 40 CFR 141.2

 (19934).

“Entry point” means

 a point just downstream of the final treatment

operation,

 but upstream of the first user

and

upstream of any

mixing with other water.

 If raw water is used without treatment,

the “entry point”

is

 the raw water source.

 If a PWS receives

treated water from another PWS,

 the “entry point”

is

 a point

 just

downstream of the other PWS, but upstream of

the first user on the

receiving PWS,

 and upstream of any mixing with

other

water.

“Filtration” means

 a process for removing particulate matter from

water by passage through porous media.

BOARD NOTE:

 Derived from

 40 CFR 141.2

 (19934).

“Flocculation”

means

 a process to enhance agglomeration or

collection

smaller

floc

particles

 into larger, more easily

settleable particles through gentle stirring by hydraulic or

mechanical

means.

BOARD

NOTE:

Derived

from

CFR

141.2

(19934).

“GC” means

 “gas chromatography”

 or “gas—liquid phase

chromatography”.

“GC/MS” means gas chromatography

 (GC)

 followed by mass

spectrometry

 (MS).

“Gross

alpha particle activity” means the total radioactivity due

to alpha particle emission as

 inferred from measurements on a dry

sample.

BOARD NOTE:

 Derived from 40 CFR 141.2

 (19934).

“Gross beta particle activity” means the total radioactivity due

to beta particle emission as inferred

 from measurements on a dry

sample.

BOARD NOTE:

 Derived from

 40 CFR 141.2

 (19934).

“Groundwater under the direct influence of surface water”

is

as

determined

 in Section 611.212.

BOARD

NOTE:

Derived

from

CFR

141.2

(199~34).

“GWS” means

 “groundwater system”,

 a public water supply

 (PWS)

 that

uses only groundwater sources.

BOARD

 NOTE:

 Drawn from 40 CFR 141.23(b) (2)

 & 14l.24(f)(2)

 note

(l993~4).

“Halogen” means one of the chemical elements chlorine, bromine or

iodine.

BOARD

NOTE:

 Derived from 40 CFR 141,2

 (19934).

“HPC”

 means “heterotrophic plate count”, measured as specified in

Section 611.531(c).

“Inactivation Ratio”

 (Ai) means:

29

CT~,/CT~

The sum of the inactivation ratios,

 or “total inactivation

ratio”

(B)

 is calculated by adding together the inactivation

ratio for each disinfection sequence:

B

 ~(Ai)

A total inactivation ratio equal

 to or greater than 1.0 is

assumed

provide

3—log

inactivation

Giardia

laznblia

cysts.

BOARD

NOTE:

 Derived from the definition of “CT”

 in 40 CFR

141.2

 (1993-4),

“Initial compliance period” means

 the three—year compliance period

that begins January

1,

 1993,

 except for the MCL5

 for dichloro—

methane,

 1, 2,4—trichlorobenzene, 1,l,2-trichloroethane,

 benzoa)—

pyrene,

 dalapon, di2—ethylhexyl)adipate,

 di(2-ethylhexyl)--

phthalate,

 dinoseb,

 diquat,

 endothall,

 endrin,

 glyphosate,

 hexa—

chlorobenzene, hexachlorocyclopentadiene,

 oxamyl, picloram,

sirnazine,

 2,3,7,8—TCDD,

 antimony,

 beryllium,

 cyanide,

 nickel,

and

thallium as they apply to suppliers whose

 supplies have fewer than

150 service connections,

 for which

 it means

 the three—year

compliance period that begins on January

1,

 1996.

BOARD NOTE:

 Derived

 from 40 CFR 141.2

 (199~4).

“L” means “liter”.

“Legionella”

means

 a genus of bacteria,

 some species of which have

caused

type

pneumonia

called

Legionnaires

Disease.

BOARD NOTE:

 Derived

 from 40 CFR 141.2

 (19934).

“Man—made beta particle and photon emitters” means all

radionuclides emitting beta particles and/or photons listed in

Maximum Permissible Body Burdens and Maximum Permissible

Concentrations

 of Radioriuclides

 in Air and in Water for

Occupational Exposure,

 NCRP Report Number 22,

 incorporated by

reference in Section 611.102,

 except the daughter products of

thorium—232,

 uranium—235 and uranium-238.

BOARD NOTE:

 Derived

 from 40 CFR 141.2

 (19934).

“Maximum contaminant level”

 (“MCL”)

 means the maximum permissible

level of

 a contaminant

 in water that is delivered to any user of a

public water system. See Section 611.121

BOARD NOTE:

 Derived from 40 CFR 141.2

 (1993.4).

“Maximum Total Trihalomethane Potential” or

 “MTP~’means the

 maximum concentration of total trihalomethanes

 (TTHMs) produced in

a given water containing a disinfectant residual

 after

 7 days at a

temperature of

25° C or above.

BOARD NOTE:

 Derived from 40 CFR 141.2

 (19934).

“NFL” means millions of fibers per liter larger than 10

micrometers.

BOARD NOTE:

 Derived from 40 CFR 141.23(a) (4) (i)

 (19934).

“mg” means milligrams

 (1/1000th of a gram).

“mg/L” means milligrams per liter.

“Mixed

 system” means

 a PWS that uses both groundwater and surface

water sources.

30

BOARD NOTE:

 Drawn from 40 CFR 141.23(b) (2)

 and 14l.24(f)(2)

 note

(1994).

“MUG”

 means 4—methyl-umbelliferyl—beta—d—glucuronide.

“Near the first service connection” means at one of the 20 percent

of all service connections in the entire system that are nearest

the public water system

 (PWS)

 treatment facility,

 as measured by

water

transport

time

within

the

distribution

system.

BOARD

NOTE:

Derived

from

CFR

141.2

(1993-4).

“run”

means

nanometer

 (1/1,000,000,000th of

 a meter).

“Non-community water system” or

“NCWS”

 or “non—CWS” means

 a public

water

system

(PWS)

that

not

community

water

system

(CWS).

BOARD

 NOTE:

 Derived

 from the definition of

 “public water system”

in 40 CFR 141.2

 (19934).

“Non—transient non—community water system” or

 “NTNCWS” means

a

public water system

 (PWS)

 that

 is not

 a community water system

(CWS) and that regularly serves at least

25

 of the same persons

over

 6 months per year.

BOARD NOTE:

 Derived

 from 40 CFR 141.2

 (1993-4).

“NPDWR” means

 “national primary drinking water regulation”.

“NTU” means

 “nephelometric turbidity units”.

“old MCL” means one of the inorganic maximum contaminant levels

(MCL5),

 codified at Section 611.300,

 or organic MCLs,

 codified at

Section 611,310,

 including

 any marked

 as “additional

 state

requirements.”

BOARD

NOTE:

Old

 MCLs are those derived prior to the

implementation

the

U.S.

EPA

“Phase

 III’ regulations.

The

Section 611.640 definition

of

 this term, which

 applies only to

Subpart

 0 of this Part,

 differs from this definition in that the

definition does not

 include the Section

 611.300

 inorganic MCLs.

“P—A

Coliforni Test” means “Presence—Absence Coliforrn Test”.

‘~Performanceevaluation sample” means

 a reference sample provided

to

 a laboratory for the purpose of demonstrating that the

laboratory can successfully analyze the sample within limits of

performance specified by the Agency;

or,

 for bacteriological

laboratories,

 Public Health;

or,

 for radiological laboratories,

the Illinois Department of Nuclear Safety.

 The true value of the

concentration

 of the reference material

 is unknown to the

laboratory at the time of the analysis.

BOARD NOTE:

 Derived

 from

 40 CFR 141.2

 (19934).

“Person” means an individual,

 corporation,

 company,

 association,

partnership,

 State,

 unit

 of local government or federal agency.

BOARD

NOTE:

Derived

from

CFR

141.2

(19934).

“Phase I” refers to that group of chemical contaminants and the

accompanying regulations promulgated by U.S. EPA on July 8,

 1987,

at

52

 Fed.

 Req. 25712.

“Phase II” refers to that group of chemical contaminants and the

accompanying regulations promulgated by U.S. EPA on January 30,

 1991,

 at 56 Fed. Req.

 3578.

31

“Phase IIB” refers to that group of chemical contaminants and

the

accompanying regulations promulgated by U.S. EPA on July 1,

 1991,

at

 56 Fed.

 Req.

 30266.

“Phase V~’ refers to that group

 of chemical contaminants

promulgated by U.S.

 EPA on July

17,

 1992,

at

57

 Fed.

 Reg.

 31776.

“Picocurie” or “pCi’ means the quantity of radioactive material

producing

2.22

nuclear transformations per minute.

BOARD

NOTE:

 Derived from 40 CFR

141.2 (l993~).

“Point of disinfectant application”

 is the point at which the

disinfectant is

applied

and

downstream of which water is

not

subject to recontamination by surface water runoff.

BOARD NOTE:

 Derived

 from 40 CFR 141.2

 (19934).

“Point—of—entry treatment device”

is

 a treatment device applied to

the drinking water entering

 a house or building

 for the purpose of

reducing contaminants

 in the drinking water distributed throughout

the house or building.

BOARD NOTE:

 Derived from 40 CFR

 141.2

 (19934).

“Point—of—use treatment device”

is

 a treatment device applied to

a

single tap used for the purpose of reducing contaminants

in

drinking water at that one tap.

BOARD NOTE:

 Derived

 from 40 CFR 141.2

 (19934).

“Public Health” means the Illinois Department of Public Health.

BOARD

NOTE:

 The Department of Public Health

 (“Public Health”)

regulates

non—community

water

supplies

(“non-CWSs”,

including

non—

transient,

 non-community water supplies

 (“N’rNCWSs”)

 and transient

non—community water supplies (“transient non—CWS5”)).

For

the

purposes of regulation of

 supplies by Public Health by reference

to this Part,

 “Agency”

 shall mean Public Health.

“Public water

 system” or

 “PWS” means

 a system for the provision to

the

public

piped

water

for

human

consumption,

such

system

has

least

fifteen

service

 connections

regularly

serves

average

least

individuals

daily

least

days

out

the

year.

PWS

either

community

water

system

(CWS)

non—

community water

 system

 (non—CWS).

 Such term includes:

Any collection,

 treatment,

storage and distribution

facilities under control of the operator of such system and

used

primarily

 in connection with such system,

 and;

Any collection or pretreatment

 storage facilities not under

such control that

are

 used primarily in connection with

such

system.

BOARD NOTE:

 Derived from 40 CFR 141.2

 (19934).

“Reliably and consistently” below a specified level for

a

contaminant means an Agency determination based on analytical

results following the initial detection of

 a contaminant to

determine the qualitative condition of water from an individual

sampling point or source.

 The Agency shall base this

determination on the consistency of analytical results,

 the degree

below the MCL,

 the susceptibility of source water to variation,

and other vulnerability factors pertinent to the contaminant

detected that may influence the quality of water.

BOARD NOTE:

 Derived from 40 CFR 141.23(b)(9),

 141.24(f)(11)(ii),

and 141.24(f)(ll)(iii)

 (1993-4).

32

“Rem” means the unit

 of dose equivalent from ionizing radiation to

the total body or any internal organ or organ system.

 A “mullirem

(znrem)”

 is 1/1000 of

 a rem.

BOARD NOTE:

 Derived from

 40 CFR 141.2

 (1993.4).

“Repeat compliance period” means

 a compliance period that begins

after the initial compliance period.

BOARD

NOTE:

Derived

from

CFR

141.2

(1993-4).

“Representative”

means

that

 sample must reflect the quality of

water that

 is delivered to consumers under conditions when all

sources required to supply water under normal conditions are

in

use and all treatment

 is properly operating.

“Residual disinfectant concentration”

 (“RDC” or “C”

 in CT

calculations) means the

concentration of disinfectant measured in

mg/L

 in a representative sample of water.

 For purposes of the

requirement

Section

611.241(d)

maintaining

 a detectable RDC

in the distribution system,

 “RDC” means

 a residual of free or

combined chlorine.

BOARD NOTE:

 Derived from 40 CFR 141.2

 (19934).

“SDWA” means the Public Health Service Act,

 as amended by the Safe

 Drinking Water Act,

 Pub.

L.

93-523,

U.S.C.

300f

seq.

BOARD NOTE:

 Derived from 40 CFR 141.2 (1994).

“Sanitary survey” means an onsite

 review of the water source,

facilities,

 equipment,

 operation and maintenance

of

 a public water

system

 (PWS)

 for the purpose

 of evaluating the adequacy of such

source,

 facilities,

 equipment, operation and maintenance for

producing and distributing safe drinking water.

BOARD NOTE:

 Derived from 40 CFR 141.2

 (1993-4).

“Sedimentation” means a process

 for removal of solids before

filtration by gravity or separation.

BOARD NOTE:

 Derived from 40 CFR 141.2

 (1993-4).

“SEP”

means

special

exception

permit

(Section

611.110).

“Slow sand filtration” means

 a process involving passage of raw

water through

 a bed of sand

 at low velocity

 (generally less than

0.4 meters per hour

 (m/h)) resulting

 in substantial particulate

removal by physical

 and biological mechanisms.

BOARD NOTE:

 Derived

 from 40 CFR 141.2

 (1993-4).

“SOC”

 or “Synthetic organic chemical contaminant” refers to that

group of contaminants designated as

 “SOCs”, or “synthetic organic

 chemicals” or

 “synthetic organic contaminants”,

 in U.S. EPA

regulatory discussions and guidance documents.

 “SOCs”

 include

alachlor, aldicarb,

 aldicarb

sulfone,

 aldicarb sulfoxide,

atrazine,

 benzoapyrene,

 carbofuran,

 chlordane,

 dalapon,

dibromo—

ethylene

(ethylene dibromide or EDB), dibromochloropropane

 (DBCP),

di(2-ethylhexyl)adipate,

di(2—ethylhexyl)phthalate,

dinoseb,

diquat,

 endothall,

 endrin,

 glyphosate,

 heptachior,

 heptachlor

epoxide,

hexachlorobenzene,

hexachlorocyclopentadiene,

lindane,

methoxychlor, oxamyl, pentachiorophenol, picloram,

 simazine,

toxaphene,

 polychiorinated biphenyls

 (PCB5),

 2,4—D,

 2,3,7,8-TCDD,

and

2,4,5—TP.

“Source” means

 a well,

 reservoir,

 or other source of raw water.

“Standard sample” means the aliquot

 of finished drinking water

33

that

examined

for

 the presence of coliform bacteria.

BOARD NOTE:

 Derived from 40

 CFR 141.2

 (19934).

“Supplier of water” or “supplier” means any person who owns or

 operates

 a public water system

(PWS).

 This term includes the

“official custodian”.

BOARD NOTE:

 Derived from 40 CFR 141.2 (1994).

“Surface water’s means all water that

 is open to the atmosphere and

subject to surface runoff.

BOARD

NOTE:

Derived

from

CFR

141.2

(19934).

“SWS”

means

 “surface water system”,

 a public water supply (PWS)

that uses only surface water sources,

 including “groundwater under

the direct

 influence of surface water”.

BOARD NOTE:

 Drawn from 40 CFR 141.23(b) (2) and 141.24(f)(2)

 note

(1993-4).

“System with a single service connection” means

 a system that

supplies drinking water to consumers via

 a single service line.

BOARD NOTE:

 Derived

 from 40 CFR 141.2

 (19934).

“Too numerous to count”

 means that the total number of bacterial

colonies exceeds 200 on

a

47-mm

diameter membrane filter used for

coliform detection.

BOARD NOTE:

 Derived

 from 40 CFR 141.2

 (19934).

“Total trihalomethanes”

or

 “TTHM” means the sum of the

concentration of trihalomethanes

 (THMS),

 in milligrams per

liter

(mg/I..),

 rounded to two significant figures.

BOARD NOTE:

 Derived from the definition of “total

trihalomethanes” in

 40 CFR 141.2

(1993-4).

 See the

definition of

THNs for a

 listing of the four compounds that U.S.

 EPA considers

TTHMs to comprise.

“Transient,

non—community

water

“TNCWC” means

 a public water

~y

system”

 or “transient non—CWS” e~

3tem (PWC)non—CWS that ia ncithcr

a

community

water

 system (“CWC”)

nor

non

transient,

nonoommunity

water cyotem

 “NTNCW~”)does not reQularly serve at least 25 of the

same persons over six months of the year

BOARD NOTE:

 Derived

 from 40 CFR 141.2

 (1994).

 The federal

regulations apply to all “public water systems”, which are defined

as all systems having at least

 15 service connections or regularly

serving water to at

 least 25 persons.

 See 42 U.S.C.

 5300f(4).

The Act mandates that the Board and the Agency regulate “public

water supplies”, which

 it defines as having at least

 15 service

connections or regularly serving 25 persons daily at least 60 days

per year.

See

 Ii..

 Rev. Stat.

 1991 oh.

 llVj,

 par.

 lOOSection 3.28

 of the Act

 (415 ILCS 5/3.28).

 The Department of Public Health

regulates transient non—community

water systems.

“Treatment” means any process that changes the physical,

 chemical,

microbiological, or radiological properties of water,

 is under the

control

the

 supplier,

 and is not

 a “point of use” or

 “point of

entry treatment

device”

 as defined in this

 Section.

 “Treatment”

includes,

but

is not limited to aeration, coagulation,

sedimentation, filtration,

 activated carbon treatment,

disinfection,

 and fluoridation.

“Trihalomethane”

 or “THM” means one of the family of organic

compounds,

 named as derivatives of methane,

 in which three of the

four hydrogen atoms

 in methane are each substituted by a halogen

34

atom

 in the molecular structure.

 The THMs are:

Trichloromethane (chloroform),

Dibromochloromethane,

Bromodichloromethane and

Tribromomethane

 (bromoform)

BOARD

NOTE:

Derived

from

the

definitions

 “total

trihalomethanes”

 and “trihalomethanes” in 40 CFR 141.2

 (1994).

“pg” means micrograms

 (1/1,000,000th of a gram).

“U.S. EPA” means the U.S. Environmental Protection Agency.

“Virus” means

 a virus of fecal origin that is infectious to humans

by waterborne

transmission.

“voc”

“volatile

organic

 chemical contaminant”

 refers to that

group of

contaminants designated as

 “VOCs”,

 or “volatile organic

chemicals” or “volatile organic contaminants”,

 in U.S. EPA

regulatory discussions and guidance documents.

 “VOCs”

 include

benzene, dichioromethane,

 tetrachloromethane

 (carbon tetra—

chloride),

 trichloroethylene,

 vinyl chloride,

 1, 1,l—trichloro—

ethane

 (methyl chloroform),

 1,1-dichloroethylene,

 1,2—dichloro—

ethane,

 cis—l,2—dichloroethylene,

 ethylbenzene,

 monochlorobenzene,

o—dichlorobenzene,

 styrene,

 1,2,4-trichlorobenzene,

 1,1,2—

trichioroethane,

 tetrachioroethylene,

 toluene, trans—1,2-dichloro—

ethylene,

xylene,

and

1,2—dichloropropane.

BOARD NOTE:

 Derived

 from 40 CFR 141.2

 (1993.4).

“Waterborne disease outbreak” means the significant occurrence of

acute infectious illness,

 epidemiologically associated with the

 ingestion of water from a public water system

 (PWS)

 that

is

deficient in treatment,

as

determined by

the

 appropriate local or

State agency.

BOARD NOTE:

 Derived from 40 CFR 141.2

 (1993-4).

“Wellhead Protection Program” means the wellhead protection

program

for

the

State

Illinois,

approved

U.S.

EPA

under

Section

1428

the

SDWA.

BOARD NOTE:

 Derived

 from 40 CFR 141.71(b)

 (1993-4).

The

wellhead

protection program will

 include the “groundwater protection needs

assessment”

under

Section

17,1

the

Act,

and

regulations

adopted

Ill.

Adm.

Code

615

seq.

(Source:

 Amended at

19

 Ill.

 Reg.

________,

 effective

_____________________)

Section

 611.102

 Incorporations by Reference

Abbreviations.

The

 following

abbreviated names are used in this

Part to refer

to

materials incorporated by reference:

“AEPA—l Polymer”

 is available from Advanced Polymer Systems.

“ASTM”

means

American

Society

for

Testing

and

Materials.

“Z~,tomioT~boorption-t’latfoEmFurnace Hothod” or “AA-I’latform

Furnace- Method” moans

&tabiliEod

Temperature

“Detctmination of

Graphite

Furnaca

T~aeo

~tomio

I~lomento—by

Absorpt~on

35

6pcctromctry

 Method

 200-.’)”

“Colisure test”

 means “Colisure Presence/Absence Test for

Detection_and Identification of Coliform Bacteria

and

Escherichia Ccli in Drinkinc Water”,

 available from

Mil1i~ore

Corporation.

“Indigo method”

is

as

described in

“gtandard Methodo”,

 17th

gdition, Method 450O—O,—~--

“Inductively Coupled Plasma Haoo Cpectromotry Method”

or

“lOP—MS Method” means ‘~Dotorminationof Trace Elements in

Water and Wastes by Inductively-Coupled Plasma—Maca

Cpectromctry

—

 Method 200.8”

“Inductively Coupled

Plasma

Method 200.7” or “ICP Method

200.7” moans “Inductively Coupled Plaoma—1\tomio Emission

 Bpcctromctric Method for Trace Element Analy3io

 in Water and

Wastes

 Method 200.7, with appendix”.

 Ccc 40 CFR

 136,

Appcndic C,

“Inductively Coupled Plasma Method 200.7,

 Rev.

 3.2” or “lOP

Method 200.7,

 Rev.

 3.2”

means “Determination of Metals and

Trace Elements

 in Water and Wastes by Inductively Coupled

Plasma-Momic Emission Speotrometry

——

 Method 200.7,.

Revision 3.2”

Ccc

 40 CFR 136, ~ppcndix

C.

“Ion Chromatography Method 300.0” means “Determination of

Inorganic

Ions

 Water

by

 Ion Chromatography

—-

 Method

300. 0”

“Microbiological Methods” means “Microbiological Methods for

Monitoring the Environment,

 Water and Wastes”,- available

from

NTIC.

“MMO~g1—Muc

Test” jmeanejj~g“minimal medium ortho—

nitrophenyl—beta-d—galactopyranoside—4—methyl-umbel

1iferyl-

beta—d—glucuronide test”), also called the “Autoanalysis

Colilert System”,

 is Method 9223, available in “Standard

Methods for the Examination of Water and Wastewater”,

 18th

ed.,

 from

Environetiop,

 IncAxnerican Public Health

Association.

“NCRP” means “National Council on Radiation Protection”.

“NTIS” means “National Technical Information Service”.

“Radiochemical Methods” means

 “Interim Radiochemical

Methodology for Drinking Water”,

 available from NTIS.

“Standard

Methods”,

means

“Standard

Methods

for

the

Examination

Water

and

 Wastewater”,

 available from

~

American Public Health Association or the American

Waterworks Association.

“Technical

Bulletin

601”

means

 “Technical Bulletin 601,

“Standard Method of Test

 for Nitrate

 in Drinking Water”,

July,

 1994,

 available

 from Analytical Technolocty,

 Inc.

“Technicon

Methods”

means

“Fluoride

Water

and

Wastewater”, available from Technicon.

36

“UC~P1~.

?~sbcstos

Methods” or

 “U.S. EPA Asbestos

 Methods-’

100.1’

 means Method 100.1,

 “Analytical Method

for

Determination of Asbestos

 Fibers

 in Water”,

 available from

NTIS.

“U.S.

 EPA Asbestos Methods-100.2” means Method

 100.2,

“Determination of Asbestos Structures over

 10—jim in Length

in Drinking Water”, available from NTIS.

“-UCEPA

Dioxin and Furan

Me-thod 1613” or “U.S.

 EPA Dioxin and

Furan

Method

1613”

means

“Tetra—

 through

 Octa-’ Chlorinated

Dioxins and Furans by Isotope~DilutionHRGC/HRMS”,

 available

from UCEPA OCTNTIS.

“U.S.

 EPA Environmental

 Inorganics Methods” means

 “Methods

for

the

Determination

Inorganic

Substances

Environmental Samples”,

 available from NTIS.

“USEPA Environmental Metals Methods”

 or “U.S.

EPA

Environmental Metals Methods” means “Methods

 for the

Determination

 of Metals

 in Environmental Samples”,

 available

from NTIS.

“USEP1~.Inorganic Methods”

or

 “U.S.

 EPA Inorganic Methods”

means

 “Methods for Chemical Analysis of Water

 and Wastes”,

available from NTIS and ORD Publications.

“11

‘.fl)’~

—.

1.~

r,n

~‘

 “t 1

t’ r~~

—.

 unromacograpny

Chromatography

Method

300.0”

mcan~

‘Method

3-00.0,

Dctcrmit~ation

 Inor

ganic

Anions

Water

..~-.1

Ion

.~.ography”,

“UCEPA-

Organic

Methods”

or “U.S.

 EPA Organic Methods’s means

“Methods

for

the-

Determin-ati~n

Organic

Compounds

Finichcd Drinking Water and

Raw

Source

Water”,

September,

1186, pvailable from NTIS and UCEPA—EMSL,

 for the

purposes

Section

611.647

onlyt

“Methods

for

the

Determination

Organic Compounds in Drinking Water”,

 December,

lO88July,

199.1,

for

Methods

502.2,

505,

507,

508,

5O8A,

515,1,

and

531.1;

“Methods

for

the

Determination

Organic

Compounds

in Drinking Water——Supplement

 I”,

 July,

 1990,

 for Methods

506,

 547,

 550,

 550.1, and 551; and “Methods for the

Determination

Organic

Compounds

Drinking

Water—-

Supplement

II”,

August,

1992,

for

Methods

515.2,

524,2

548.1,

549.1,

552.1,

and

555,

available

from

NTIS

and

ORD

1uLJii~iu:I~J,

~ur

~n’~

 purp~.~u~

QL

~.t~C~.LUI1L

~riu

~11.618

only~

and

“Hcthoda

for

the

Determination

Or~anio

Compounds

Drinking

Water”,

available-from

NTIS,

for

the

purposes of Section

611.68-5

only.

 Methods

 504.1,

 508.1.

and

525.2 are available from EPA EMSL.

“USGS Methods” means ~

 for Dctcrminat-ion of Inorganic

Substances in Water and Fluvial &ed-imcnts”Methods of

Analysis

the

U.S.

Geological

 Survey

National Water

Quality Laboratory-—Determination of Inorganic and Organic

Constituents

 in Water and Fluvial Sediments”,

 available from

NTIS and USGS.

b)

 The Board incorporates the following publications by reference:

Chrom3~

Access

Analytical

Systems,

Inc.,

See

Environetics,

Inc.

37

American Public Health Association,

 1015 Fifteenth Street

NW,

 Washington,

 DC 20005

 800—645—5476:

Standard Methods for the Examination

Water

and

Wastewater,

 18th Edition,

 1992.

 See the methods

listed

for

the

same

reference

 under American Water

Works Association.

Supplement to the 18th edition of Standard Methods

for

the Examination of Water and Wastewater,

 1994.

Analytical Technology,

 Inc.

 ATI Orion,

 529 Main Street,

Boston,

MA

 02129:

Technical Bulletin 601,

 “Standard Method of Test

for

Nitrate

 in Drinking Water”,

 July,

 1994,

 PN 221890—001.

ASTM.

 American Society

 for Testing and Materials,

 1976 Race

Street,

 Philadelphia,

PA

19103

 2l5~299—5S85:

ASTM Method

D5l1-8~893

A and

B,

 “Standard Test Methods

for Calcium and Magnesium

 in Water”, approved

19881993.

ASTM

Method

D515-88_A,

 “Standard Test Methods for

Phosphorus

 in Water”,

 approved August

19,

 1988.

ASTM Method D858—88,

 “Standard Test Methods

for

Manganese

 in Water”,

 approved August

19,

 1988.

ASTM Method D859-88, ,Standard Test Method for Silica

in Water”, approved August

19,

 1988.

ASTM Method D1067-8~92S, “Standard Test Methods

for

Acidity or Alkalinity in Water”, approved -l9BSMay

15.

1992.

ASTM Method D1125-.8-2B91_A, “Standard Test Methods for

Electrical Conductivity and Resistivity of Water”,

approved October 29,

 l9S2June

15,

 1991.

ASTM Method Dl179-~!~Aor

 B “Standard Test Methods

for Fluoride in Water”,

 approved July 22,

 197-2-r

roapprovcd 1978~.

ASTM Method Dl293-84& “Standard Test Methods for pH of

Water”,

 approved October 26,

 1984.

ASTII Method D1428-6-4,

 “Standard Test -Methods for

Sodium and Potassium in—Water and Water Fermcd

Do-posits

 by Flame Photometry”, approved August --1,

1964, roapproved 1977.

ASTM Method D1688—90 A or C,

 “Standard

 Test Methods

for Copper

 in Water”,

 approved March

15,

 1990.

ASTM Method D2O36-~9L.Aor B,

 “Standard Test Methods

for Cyanide in Water”,

 approved September 15, 19~9i.

ASTM Method

02459-72,

 “Standard Test Method for Gamma

Spectrometry

 in Water,”

 1975,

 reapproved

 1981,

discontinued 1988.

38

ASTM Method D2907—83,

 “Standard Test Methods

for

Microguantities of Uranium in Water by Fluorometry”,

approved May

27,

 1983.

ASTM Method D2972—BSA

or93

B

or

C,

 “Standard Test

Methods

 for Arsenic

 in Water”,

 approved 19?8~.

ASTM Method D3223-a691,

 “Standard Test Method for

Total Mercury

 in Water”,

 approved February

28,

1986September

23,

 1991.

ASTM Method D3559-8~90D, “Standard Test Methods

for

Lead

 in Water”,

 approved 3-985August

6,

 1990.

ASTM

Method

D3645-8493B,

“Standard

Test

Methods

for

Beryllium

 in Water, Method B—-Atomic Absorption,

Graphite Furnace”,

 approved

 Jan-,

27,

 l9S4~.

ASTM Method D3697-8~3.92, “Standard Test Method for

Antimony in Water”,

 approved June

15,

198-92.

ASTM Method

D3859—8493A,

 “Standard Test Methods for

Selenium

 in Water, Method A—-Atomic Absorption,

Hydride Method”, approved 19S4~.

ACTU

Method D3859

88,

 “Standard Test Methods for

,r~-rvicd

 Junc 24,

 1988.

ASTM

Method

D3867-90

and

‘~Standard Test

Methods

for Nitrite—Nitrate

 in Water’, approved January

10,

1990,

ASTM Method D4327-S-&91,

 “Standard Test Method for

Anions

 in Water by Ion Chromatography”,

 approved

1-988October

15,

 1991.

American Waterworks Association et

 al., 6666 West Quincy

Ave.,

Denver,

80235

-f~303-)—--794-7711:

Standard Methods for the Examination of Water and

Wastewater,

13th

Edition,

1971.

Method

302, Gross Alpha and Gross Beta

Radioactivity in Water

 (Total,

 Suspended and

Dissolved.

Method

 303,

 Total Radioactive

 Strontium and

Strontium 90 in Water.

Method

 304,

 Radium

 in Water by Precipitation.

Method 305, Radium 226 by Radon

 in Water

(Soluble,

 Suspended and Total).

Method 306, Tritium in Water.

Standard Methods for the Examination of Water and

~1’~-”’-tcr, 14th Edition,

19-76.

etnoa

 .~itA,

Ture~uity, Uopheiomct

ephclornetric Turbidity Units- (for

•f Section 611.-560 turbidity only)

39

Methods

320

and

320A,

Sodium,

Flame

Photomol

Method.

~rd

Methods

for

the

Examination

Water

and

:ater,

16th

Edition,

1955.

Method 212,

Temperature.

Method 214A,

 Turbidity,

 Nephclomctric Method

Mephelemetric

Turbidity Units

 (foe the

purposes

of Section 611.631 microbiological

 only-).

Method

303A,

Determination

 of Antimony,

 etc. by

Direct Aspiration

 into an Air-Acetylene Flame.

Method 303E,

Determination of Arsenic and

&elenium by Conversion to Their flydridco by

Sodium Dorohydridc

Reagent

and

Aspiration

into

an Atomic Absorption Atomizer.

Method

 304, Determination of Micro Quantities of

Aluminum,

etc.

Electrothermal

Atomic

Abo-orpt ion

Spcctz-omctry.

Method

30Th,

Arsenic,

Atomic

Absorption

Cpcctrophotomctric Method.

Method 3078,

 Arsenic,

 Silver

Diothyldithiocar—

bamate Method.

Method 408C, Chlorine

 (Residual), Amporomotria

 Titration

Method-.

Method 405D, Chlorine

 (Residual),

 DPD Ferrous

Titrimctric Method.

Method 408E,

 Chlorine

 (Residual), DPD

Colorimetric Hcthod-~-

Method

40SF,

Chlorine

(Residual),.

Lcuoo

Cryota~

Violet Method.

Method 410B, Chlorine Diotide, Amperomctrio

Method.

Method

 410C,

 Chlorine Dioxide,

 DPD Method

-(-Tentative).

Method 4l3A,

 Fluoride,

 Preliminary Distillation

Step.

Method 4138,

 Fluoride,

 Electrode Method.

Metho-d

4130,

 Fluoride,

 CPADNC Method.

Method 413E,

 Fluoride, Complononc Method.

Method 423,

 pH-Value.

Method 90Th,

 Pour Plate Method.

Method

908,

Mu-itipic

Tube

Fermentation

Tcchniaue

40

for Mcmbcrs~

Method

 908A,

(MPN)

Toots.

._._,

~~-.—-—.

rietnou Ju~, i~.ppiicatLonor

i’C3t3

to

ttOU-tLflC

Examinations.

Method 908C,—Focal Goliform MPN Pro-ccdure.

Method 9OSD, Estimation of Spotorial Density.

Method 908E, Presence Absence-

 (I’ A)

 0-eliferm

Test

 (Tentative)-.

Method

 909,.

 Membrane Filter -T-cchni-que

for

Members of the Coliform Croup.

Method 909A,

 Standard Total Coliform Membrane

Filter Procedure.

Method 909B,

 Delayed

 Incubation Total Coliform

Procedure,

Method 90~C,Fccal coliform

Procedure

of Watcr

and

Method 2320, Alkalinity.

Method 2510, Conductivity.

Method 2550,

 Temperature.

3111

 3, Metals by Fl

 -Atomic At

~~mctry,

 Direct Air-Ac~~..cneFlame

~

lle-t

ttod

~-~‘-—-.

nr~rnc~r1

~oorption

 Method

1

TI,

Metals

~~.~n;i-r~-s-

by Flame

-r~,i~

Atomic

ADsorption

~pcctre

Fl~utL

Method 3112

 B, Metals by Cold-Vapor Atomio

Absorption cpcctrometry, Cold Vapor Atomic

Absorption Gpcctromctric Method,

Method 3113,

 Metals by Elcotrothermal Atomic

Absorption Cpcctromctry.

Method 3113

 -B, Metals by Electrothermal Atomic

Absorption Cpcctromctry,

 Electrothermal Atomic

Absorption Cpectromctric Method.

Method 3114

 B, Metals by Hydride Coneration/

 Atomia Absorption Spcotrometry, Manual Hydride

Generation/Atomic- Absorption Speotrometrie

Method.

41

- -

rtlmarou

Method 4500—CN D,

 Cyanide, Titrimetrie

 Mctho-th

Method

4500—CN 3,

 Cyanide, Colorimctric Method.

Hot-hod-

4500

CN

F,

 Cyanide, Cyanide-Selective

Electrode Method.

Method 4500 CN C,

 Cyanide, Cyanides Amenable to

Chlorination after Distillation.

Method

 4500—H.t,

 p11 Value.

Method 4500-N0,

E,

Nitrogen (Nitrate), Cadmium

Reduction Method.

Method 4S00-N0~Fr Nitrogen

 (Nitrate), Automated

Cadmium Reduction Method.

Method 4500

0,,

 Ozone

 (Residual),

 Indi~go

Color-irnetric Method

 (Proposed).

Method 4500-P F,

 Phosphorus, Automated Ascorbic

Acid Reduction Method.

Method- 4500 Ci D,

 Silica,

Holybdosilisato

Method.

Met-hod

 4500 Ci

E,

 C-ilica,

 Uctoropoly Blue

Method.

Hethod 4500 Ci

F,

 Silica, Automated method

for

Holybdatc Reactive Silica.

Standard Methods for the Examination of Water and

Wastewater,

 18th Edition,

 1992:

Method 2130

B,

 Turbidity,

 Nephelometric Method.

Method 2320

 3, Alkalinity, Titration Method.

Method 2510

 3, Conductivity,

 Laboratory Method.

Method

2550

 B, Temperature,

 Laboratory and Field

Methods.

Method 3111

 B, Metals by Flame Atomic Absorption

Spectrometry, Direct Air—Acetylene Flame Method.

Method 3111

D,

Metals

by Flame Atomic Absorption

Spectrometry, Direct Nitrous Oxide-Acetylene

Flame Method.

Method 3112

B,

 Metals by Cold—Vapor Atomic

Absorption Spectrometry,

 Cold—Vapor Atomic

Absorption Spectrometric Method.

Method 3500 Ca

0,

 Calcium, EDTA Titrimetri-o

Method.

Method 4110, Determination of Anions by Ion

42

Method

3113

B,

 Metals by Electrothermal Atomic

Absorption Spectrometry,

 Electrothermal Atomic

Absorption Spectrometric

 Method.

Method 3114

B,

 Metals by Hydride Generation/

Atomic Absorbtion Spectrometry,

 Manual Hydride

Generation/Atomic Absorbtion Spectrometry.

Method

3120

B,

 Metals by Plasma Emission

Spectroscopy,

 Inductively Coupled Plasma

 (ICP)

 Method.

Method 3500-Ca

D,

 Calcium, EDTA Titrimetric

Method.

Method 4110

8,

 Determination

 of Anions by Ion

Chromatography,

 Ion Chromatography with Chemical

Suppression of Eluant Conductivity.

Method 4500—CN

C,

 Cyanide,

 Total Cyanide after

Distillation.

Method 4500-CN

E,

 Cyanide,

 Colorimetric Method.

Method

 4500—CN

F,

 Cyanide, Cyanide—Selective

Electrode Method.

Method 4500—CN

G,

 Cyanide,

 Cyanides Amenable to

Chlorination after Distillation.

Method 4500—Cl

D,

 Chlorine

 (Residual),

Amperometric Titration Method.

Method 4500-Cl

 E, Chlorine

 (Residual), Low—Level

Amperometric Titration Method.

Method 4500—Cl

F,

 Chlorine

 (Residual),

DPD

Ferrous Titrimetric Method.

(Residual), DPD

 Method

 4500—Cl G, Chlorine

Colorimetric Method.

Method

 4500—Cl

 H, Chlorine

 (Residual),

Syringaldazine

 (FACTS) Method.

Method 4500—Cl

 I, Chlorine

 (Residual),

lodometric Electrode Method.

Method 4500-ClO,

 C, Chlorine Dioxide,

Amperometric Method

I.

Method 4500—ClO~D, Chlorine Dioxide, DPD

Method.

Method 4500—do,

E,

 Chlorine Dioxide,

Amperometric Method II

 (Proposed).

Method

 4500—F

B,

 Fluoride, Preliminary

Distillation Step.

Method 4500—F

C,

 Fluoride, Ion—Selective

43

Electrode Method.

Method 4500—F

D.,

 Fluoride,

 SPADNS Method.

Method 450O-~ B,

 Fluoride, Complexone Method.

Method 4500—H~B,

 pH Value, Elecrtometric

Method.

Method 4500-NOv

 B, Nitrogen (NitriteL,

Colorimetric Method.

Method 4500-NO;

D,

Nitrogen

 (Njtrate),

Nitrate

Electrode Method.

Method

 4500—NO.,

B,

 Nitrogen LNitrate),

 Cadmium

Reduction Method.

Method 4500-N0

 F, Nitrogen

 (Nitrate), Automated

Cadmium Reduction Method.

Method 450O-O~L Ozone

 (Residual)

 (Proposed),

Indigo Colorimetric Method.

Method 4500-P

E,

 Phosphorus,

 Ascorbic Acid

Method.

Method 4500—P F,

 Phosphorus, Automated Ascorbic

Acid Reduction Method.

Method 4500-Si

D,

 Silica, Holybdosilicate

Method.

Method 4500—Si

3,

 Silica, Heteropoly Blue

t~ethod.

Method 4~cC.)—Si F,

 Silica, Automated Method for

Molybdate-Reactive Silica.

Method 4500—SQ,2

C,

 Sulfate, Gravimetric Method

with

 Ignition of Residue.

Method

4500—SO~2 D,

Sulfate,

Gravimetric

Method

with Drying of Residue.

Method

4500—SO.2

Sulfate,

Automated

Methylthymol Blue Method.

Method 6651,

 Glyphosate Herbicide

 (Proposed).

Method 9215

B,

 Heterotrophic Plate Count,

 Pour

Plate Method.

Method 9221

 A, Multiple—Tube Fermentation

Technique for Members of the Coliform Group,

Introduction.

Method 9221

 8, Multiple—Tube Fermentation

Technique

 for Members of

the Coliform Group,

Standard Total Coliform Fermentation Technique.

44

Method 9221

 C, Multiple-Tube Fermentation

Technique

 for Members

of

 the Coliform Group,

Estimation of Bacterial Density.

Method 9221

 0, Multiple—Tube Fermentation

Technique

 for Members

 of the Coliforrn Group,

Presence—Absence

 (P-A) Coliform Test.

Method 9222

 A, Membrane Filter Technique for

Members

the

Coliform

Group,

Introduction.

Method

9222

Membrane

Filter

Technique

for

Members of the Coliforrn Group,

 Standard Total

Coliform Membrane Filter Procedure.

Method 9222 C, Membrane Filter Technique for

Members of the Coliform Group, Delayed—

Incubation Total Coliform Procedure.

Method 9223,

 Chromogenic Substrate Coliform Test

(Proposed).

Standard Methods

 for the Examination of Water and

Wastewater,

 18th Edition Supplement,

 1994:

Method 6610,

 Carbamate Pesticides.

Advanced Polymer Systems,

 3696 Haven Avenue, Redwood City,

CA

94063

 415~—366—262G:

AEPA—l Polymer.

 See 40 CFR 141.22(a).

 Also,

as

referenced

 in ASTM D1889.

Environotico,

 Inc.,

~i.

 Du~ne55 Park Drive,

 ~renroru,

CT

06405

 800/321-0207i

MMO-HIJC

 tcats~—Colilcrt

 ri/A

or Colilert

 IIPN.

ERDA Health and Safety Laboratory,

 New York,

NY:

HASL Procedure Manual, HASL

 300,

 1973.

 See 40 CFR

141.25(b) (2).

Millipore Corporation, Technical Services Department,

80

Ashby Road,

 Milford, MA

01730

 800-654—5476:

Colisure Presence/Absence Test

 for Detection and

Identification of Coliform Bacteria and Escherichia

 Coli in Drinking Water,

 February 28,

 1994.

Millipore Corporation, Waters Chromatography Division,

34

Maple St.,

 Milford, MA

01757

 8007L~2S2_4752:

Waters Test Method for the Determination of

Nitrite/Nitrate

Water

Using

 Single Column Ion

Chromatography,

Method

B—loll.

NCRP.

 National Council on Radiation Protection,

7910

Woodmont Ave.,

 Bethesda,

MD

 +3Ol~)—~6S7—26S2:

“Maximum

Permissible

Body

Burdens

and

Maximum

Permissible Concentrations

 of Radionuclides in Air and

45

in Water for Occupational Expesure”,

NCRP

 Report

Number

22,

 June

5,

 1959.

NTIS.

 National Technical Information Service,

 U.S.

Department of Commerce,

5285

 Port Royal Road,

 Springfield,

VA

22161

(703)

487—4600

-f800±——336—4700553—6847:

Method 100.2,

 “Analytical Method for Determination of

Asbesto8 Fibers

 in Water:, EPA-600/4—83—043,

September,

 1983,

 Doc.

No.

PB83—2S0471.

Method 100.2,

 “Determination of Asbestos Structures

over

1O-um

Length

Drinking

Water”,

EPA—600/4—83-

043,

 June,

 1994,

 Dec.

No.

 P394—201902.

“Methods

o-f

Chemical Analyoio of Water

 arid

Was-too”,

March,

 19-79.

 EPA-600/4-79-020,

 Doe.

No.

 P884—297686.

“Methods

for

Chemical

Analysis

Water

and

 Wastes”,

March,

 1983,

 Doc.

No.

 P384—128677,

 for all

methods

referenced except methods

 180.1 (turbidity, Section

611.560)

 and 273.1

 and 273.2

 (sodium,

 Ceoti-en

611.-630-)Methods

150.1,

150.2,

and

245.2,

which

formerly appeared

 in this reference,

 are available

from U.S. EPA EMSL.

“-Methods

 for Chemical Analysis of Water and Waotco~’,

March,

 i’~i~

r’~--~

 ppg1’~7’7

e~ I

r~n.

.....2

180-.1

-(turbidity,

Cecti~...

.2

3Odiuu~,

 Cection 611.630).

“Methods

for

the

Determination

 of Metals

in

Environmental

 Samples”, June,

 1991,

 Doc. No.

 PB91—

231498.

“Methods

for the Determination

 of Organs- Compounds in

F~ini-ehcdDrinking

Water

and

 flaw Source Water”,

EI’A/600/4 88/039,

 September,

 1986,

 Doc.

No.

P389—

220461.

 (For the purposes of Section 611.647 only-.~

“Methods for the Determination of Organic Compounds in

Drin1~ingWater”,

 Et’A/600/4 88/03~i,December,

 1q88,

Doe. Non. P391—231480 and P391—146027.

 (For the

purposes of Section 611.646 and 611.648 only,

including Method 515.1,

 revision 5.0 and )latha-d 52S.~1,

---—

 mctnoao

“Methods

for

the

Determination

Organic

Compounds

Finished Drinking Water”,

 EP-A/600/4 83/O39December,

1988, revised July,

 1991,

 EPA—600/4—88/039.

 (For ~he

purposes of Section 611.685 only;

 including--methods

502.2,

 505,

 507,

 508,

 508A,

 515.1 and 524.2531.1.)

“Methods for the Determination

 of Organic Compounds

in

Finished Drinking Water——Supplement

 I” July.

 1990,

EPA—600-~4—9O—020.

 (For methods 506,

 547,

 550,

 550.1,

and

551.)

“Methods

for

the

Determination

Organic

Compounds

in

Finished Drinking Water——Supplement

 II” August,

 1992,

EPA—600/R—92—129.

(For

methods

515.2,

524.2,

548.1,

549.1,

 552.1 and 5S5.~

46

c.,..

t,.._:....._..:

a..#’,a..._.aa

Environment:

W-i-n-t-e-r.

 1978.

. .~....a

. .~..e

... ‘.1

Water

and

Wastes”,

fl.

Bodner

EPl\-600-18—-38—013.

 Doe.

No.

and

P3290—

~29,’LP.

~~Proceduresfor Radiochemical Analysis of Nuclear

Reactor Aqueous Solutions”,

 H.L. Krieger

 and S.

 Gold,

EPA—R4—73—014,

May,

1973,

Doe.

No.

P3222—154/7BA.

“Technical Notes on Drinking Water Methods”, EPA—600/

R—94—173,

October,

1994.

BOARD

NOTE:

U.S.

EPA

made

the

following

assertion

with regard

 to this reference at 40 CFR 141.23(k)(1)

arid

141.24(e)

and

(n)(11)

(1994):

This

document

contains other analytical test procedures and approved

analytical methods

 that remain available

for

compliance monitoring until July

1,

 1996.

“Tetra— through Octa— Chlorinated Dioxins and Furans

by Isotope Dilution HRGC/HRMS”, October,

 1994,

 EPA—

~2

1—8—94—005.

“Methods for Chemica-1 Analysis of

Water

arid

Was-tea”,-

March,

1083,

(CPA

600/4

02-0),

for

all

 methods

referenced enoept methods- 180.1

 (turbidity,

 Scotion

611.560) and 273.1 and 273.2 ~codium, Ceotion

6-1-1-.

630-.-

“Methods

 for Chemical Analysis-

Water

and

Wastes”,

March,

1939,

(EPA-600/4—79—020),

only

for

methods

180.1

(turbidity,

Cc-cti-on~

611.560)

 and 273.1 and 273.2

...m.

 r-l-ictn

 1~fl\~.

“Methods

 for the Doterminati

Drinking Water”, EPA/600/4-88/039, December,

 1988,

Doe.

 floe.

 P891 231480 and P391

 146027.

 (For the

purposes

of

 Ccctiori 611.646

Orion Research,

 Inc.,

 529 Main St.,

 Boston, MA

02129

 800~L—

225—1480:

Orion Guide to Water and Wastewater Analysis,

 Form

WeWWG/5880,

p.

5.

Technicon Industrial Systems,

 Tarrytown,

NY

 10591:

“Fluoride

 in Water and Wastewater”,

 Industrial Method

#129—71W,

 December,

1972

 See 40 CFR 141.23(f)(10),

footnotes

 6 and

7.

“Fluoride in Water and Wastewater”,

 #380—75WE,

February,

 1976.

 See 40 CFR l41.23(f)(10),

 footnotes

6

arid

7.

United

States

Environmental Protection Agency,

 EMSL,

 EPA,-

Cincinnati,

45268

513—569—7586:

‘~Thc2\nalyoio of Trihaloniathanea.

in Drinking

 Wator.-e- -by

the

Purge

and

Tr ap

Method”,

Method

Appendix--C.

501.1.

Ccc

CFfl

141, Subpart -C,

47

“The Analysis of Trihalomethancs

 in Drinking Water by

~,iquid/LiquidExtraction,”

 ~cthod 501.2.

 Goo—40 CPR

141,

 Subpart C~Appendix

C.

“Inductivcly Coupled Plasma Atomic Emission

Speotromotric Method ~or Trace Element Analysis in

Water and

tr1aatoo

 H~thod200-.7, with AppondiK to

Method 200.7” entitled,

 “Induotivoly Coupled Plasma—

Atomic Emission-Analysis of Drinking Water”

 (Appendix

200.7A), March

 3.987

 (Et’A/6GO/4

 91/010.

 Ccc 40

CPa

136, Appendix C.

“Interim Radiochemical Methodology for Drinking

Water”, EPA—600/4—75—008

 (Revised) March,

 1976.

“Methods

for

the

Determination

Organic

Compounds

Finished Drinking Water and Raw Source Water”,

September,

 1-986methods

 504.1,

508.1,

and

525.2.

~For

the -purposco of Section 611.647 only).

 See NTIS.

‘~Methods for Chemical Analysis of Water and Wastes”.

See NTIS and ORD Publications.

 Methods

 150.1,

 150.2,

and 245.2, which

 formerly appeared

 in this reference,

are

available

from

U.S.

EPA

EMSL.

“Microbiological

Methoda

for Monitoring the

Environment, Water and Wastes”.

Ccc

NTIS.

1’Volatile- Organic Compounds

 in Water by Purge and Trap

Capillary Cao Chromatography/Macs Cpcctrometry”,

Method 524.2, order

 number P391—231480.

 (For purposes

of Scation~611.685 only.)

 Ccc NTIS.-

“Volatile Organic Compounds

 in Water by Purge and Trap

Capillary Cao Chromatography

 w-Lth Photoionisation and

Electrolytic Conductivity Deoteotor in Series”,

Hot-hod

50-2.2, order number PB 01

 231-480.

 (-For purcoocs of

CCCti~n

621r685-Oflly.)

 Ccc NTIS.

“Procedures

 for Radiochemical Analysis of Nuclear

Reactor Aqueous Solutions”.

 See NTIS.

U.-B.-

EPA—OCT

 (United States Environmental Protcotion

Agency-,-

Officc of

Science

and Technology), P.O Box 1407,

 Arlington,-

VA

 22313*

through

Octa

 Chlorinated

Dioxina

 arid

~r~cDilution”.

United States Environmental Protection Agency, Science and

Technology Branch, Criteria and Standards Division,

Office

of Drinking Water, Washington D.C.

 20460:

“Guidance Manual for Compliance with the Filtration

and Disinfection Requirements for Public Water Systems

using Surface Water Sources”, October,

 1989.

USGS.

 Books and Open—File Reports Section, United States

Geological Survey,

 1961 Stout Bt.Federal Center, Box 25425,

Denver, CO

 802~425—0425 3031341—4169:

Methods available upon request by method number from

48

d)

(Source:

Section

a)

“Methods of Analysis by

the

 U.S. Geological Survey

National Water quality Laboratory—-Determination of

Inorganic and Organic Constituents

 in Water and

Fluvial

Sediments”,

Open

File

Report

93—125

Book

Chapter

A—i,

“Methods

for

Determination

Inorganic

Substances

 in Water

 arid Fluvial Sediments”,

3d

 ed..,

Open-File Report 85-495,

 1989, as

appropriate.Tcohniquca of Water—Resources

Investigation ot

 the- United &tatc~Ccologiaal

 Curvey-~-

uoo:~

 ~aapter-A—i,

~xictziouo

~or

uct-ernu.natwn

Inorganic Cubotanoeo

 in Water and Fluvia.

merits”,

 3d cd., Open File

rtcport

85-495,

5-edi

-1-98-9

.-:

1—1030—85

1—1062—85

1—1601—85

1—1700—85

1—2598—85

1—2601—90

1—2700—85

1—3300—85

C)

 The Board incorporates the following

 federal regulations by

reference:

CFR

 136, Appendix B and C (199~).

40 CFR 141,

 Subpart

C,

 Appendix C (199~).

This Part incorporates no later amendments or editions.

Amended at

19

 Ill. Reg.

________,

 effective

_____________________

611.110

 Special Exception Permits

Unless otherwise specified,

 each Agency determination

 in this Part

is to be made by way of

 a written permit pursuant to Section 39(a)

of the Act.

 Such permit

titled

“special

 exception” permit

(“SE?”).

person

shall

cause

allow

 the violation of any condition of a

SEP.

C)

 The supplier may appeal

the

denial of

or the conditions of a

SEP

to the Board pursuant to Section 40

the

Act.

d)

 A SEP may be initiated either:

1).

By

 an application filed

by

the supplier; or

the

Agency,

when

authorized

 by Board regulations.

BOARD

NOTE:

The

Board

does

not

intend

mandate

any

49

provision

this

Part

that

the

Agency

exercise

its

discretion and initiate

SEP

pursuant

subsection

(d)(2)

above.

 Rather, the Board intends to clarify by this

subsection that the Agency may

opt to initiate a SEP without

receiving a request

 from the supplier.

e)

 The Agency shall evaluate

a request for

a

SEP

 from the monitoring

requirements of Section 611.601

 (inorganic chemical contaminants),

only as to monitoring for

cyanide; Section 611.646(e)

and

(f)

(Phase

I,

 Phase

II,

 and Phase V VOCS),-j Section 611.646(d), only

as to initial monitoring for

 1,2,4-trichlorobenzene.,-.L Section

611.648(a)

(for

Phase

II,

Phase

115,

and

Phase

V

SOCa)

 or Section

611.510

 (for unregulated organic contaminants)

the

basis

knowledge of previous use (including transport,

 storage,

or

disposal)

 of the contaminant

 in the watershed or zone of influence

of the system,

 as determined pursuant to 35 Ill.

Adm.

Code 671:

1)

 If the Agency determines that there was no prior

use of the

contaminant,

shall

grant

the

SE?,

2)

 If the contaminant was previously used or the previous use

was unknown,

 the Agency shall consider the following

factors:

A)

 Previous analytical

 results;

B)

 The proximity of the system to any possible point

source of contamination

 (including spills or leaks

at

or near

 a water treatment facility;

 at manufacturing,

distribution, or storage facilities;

 from hazardous

arid

municipal

waste

land

fills;

from

waste

handling

or treatment facilities) or non—point source of

contamination

 (including the use of pesticides and

 other

 land application uses

the

contaminant);

C)

 The environmental persistence arid transport of the

contaminant;

D)

How

well the water source is protected against

contamination,

 including whether

it

is

 a SWS or

 a GWS:

i)

A

GWS

must

consider

 well depth,

 soil type,

 well

casing integrity,

 and wellhead protection;

and

ii)

 A SWS must consider watershed protection;

and

E)

 For Phase

II,

 Phase

 115,

 and Phase V SOCs

and

unregulated organic contaminants (pursuant to Section

611,631 or 611.648):

i)

 Elevated nitrate levels at the water source; and

ii)

 The use of PCBs

 in equipment used in the

production,

 storage,

 or distribution of water

(including pumps, transformers, etc.); and

F)

 For Phase

I,

 Phase II, and Phase V VOCs

 (pursuant to

Section 611.646):

 the number of persons served by the

PWS

and the proximity of

a smaller system to a larger

one.

f)

If

 a supplier refuses

to

provide

any necessary additional

50

information requested by the Agency,

or

if

 a supplier delivers any

necessary information late in the Agency’s deliberations on a

request,

 the Agency may deny the requested SEP or grant the SEP

with conditions within the time allowed by

 law.

a)..

 The Agency shall grant a

 supplier a SEP pursuant to Section

611.110

that

allows

 it to discontinue monitoring for cyanide

if

it

determines that the supplier’s water

is

not

vulnerable due to

a

lack of

any industrial source of cyanide.

BOARD

NOTE:

 Subsection

(e)

 above

 is derived from 40 CFR

141.23(c)(2)

(1994),

and

 40 CFR 141.24(f)(8)

 and (h)(6)

 (199~4).

Subsection

(f)

above

 is derived from 40 CFR 141.82(d) (2),

and

14l.83(b)(2)

 (l99~4). Subsection (a~ is derived from 40 CFR

141.23(c~(2) (1994).

 U.S. EPA has reserved the discretion,

at

40

CFR

142.18

(l99Q~4),

 to review and nullify Agency determinations of

 the types made pursuant to Sections 611.510,

 611.602,

 611.603,

611.646,

and

611.648

and

 the discretion,

at

CFR

141.82(i),

141.83(b)

(7),

and

142.19

 (1992.4),

 to establish federal

 standards

for

any

 supplier,

superseding any Agency determination made

pursuant

 to Sections 611.352(d).

 611.352(f),

 61l.353(b)(2),

and

611.353(b) (4).

(Source:

 Amended at

19

Ill.

 Reg.

________

 effective

______________________

Section 611.111

 Section 1415 Variances

This Section

 is intended as

 a State equivalent of Section 1415(a)(1)(A)

 of the

SDWA.

The

Board

may

grant

supplier

variance

from

NPDWR

this

Part.

1)

 The supplier shall file

 a variance petition pursuant to 35

Ill.

Adm.

Code

104,

except

modified

supplemented

this

 Section.

2)

 The Board may grant

 a variance from

the

additional

 State

requirements

in

 this Part without following this Section.

b)

 As part of the showing of arbitrary or unreasonable hardship,

the

supplier shall demonstrate that:

1)

 Because of characteristics of the raw water sources that are

reasonably available to the

system, the supplier cannot meet

the MCL or other requirement;

and

2)

 The system has applied BAT as identified in Subpart

 G of

this Part.

 BAT may vary depending on:

A)

 The number of persons served by the system;

B)

 Physical conditions related to engineering

feasibility; and

C)

 Costs of compliance;

and

The

variance

will

not

result

 an unreasonable risk to

health,

 as defined in subsection

(g)

 below.

C)

The

Board

will

prescribe

 schedule

for:

51

Compliance,

including

increments

progress,

the

supplier,

 with each MCL or other requirement with respect to

which the variance was granted, and

2)

 Implementation by the supplier of each additional control

 measure for each MCL or other requirement,

 during the period

ending on the date compliance

with

 such requirement

is

required.

d)

 A schedule of compliance will require compliance with each MCL or

other requirement with respect to which the variance was granted

as expeditiously

 as practicable.

e)

 The Board will provide notice and opportunity

 for a public hearing

as provided in

35

 Ill.

 Adrn.

 Code 104.

f)

 The Board will not

grant

 a. variance:

1)

 From the MCL for total coliforms; provided,

 however,

 that

the Board may grant

 a variance from the total coliform MCL

of Section 611,325

 for PWSs that demonstrate that the

violation of

 the total coliform

 MCTJ is

 due to persistent

growth of total coliforms

 in the distribution

 system,

 rather

than from fecal or pathogenic contamination,

 from a

treatment

 lapse or deficiency, or from a problem in the

operation or maintenance of the distribution system.

2)

Or,

 from any of the treatment technique requirements of

Subpart

this

Part.

g)

 As used in this Section and Section

611.112,

 “unreasonable risk to

health level”

 (‘~URTH level”) means the concentration of a

contaminant that will cause

 a serious health effect within the

period of time specified in the variance or exemption requested by

a supplier seeking to come into compliance by installing the

treatment required to reduce the contaminant

 to the MCL.

 URTH

level determinations are made on the basis of the individual

contaminant, taking into account:

 the degree by which the

 level

exceeds the

MCL;

duration of exposure; historical data;

and

population

exposed.

risk

health

assumed

unreasonable unless the supplier demonstrates that there are costs

involved that clearly exceed the health benefits

to be derived.

h)

The

provisions of Section 611.130 apply to determinations made

pursuant

to this Section.

BOARD

NOTE:

 Derived from 40 CFR 141.4 (1992~J, from Section

1415(a)(1)(A)

 of the SDWA

and from the “Guidance Manual for

Compliance with the Filtration

 arid Disinfection Requirements for

Public Water Systems using Surface Water Sources”,

 incorporated by

reference in Section 611.102.

~

 has reserved the

discretion to review and modify or nullify Board determinations

made pursuant to this Section

 at 40 CFR 142.23

(199~).

(Source:

 Amended at

 19 Ill.

 Reg.

________,

 effective

_____________________

Section 611.112

 Section 1416

Variances

Thia Section is intended as a State equivalent of Section 1416 of the SDWA.

a)

 The Board may grant

 a supplier a variance from any requirement

respecting an MCL or treatment technique requirement of an NPDWR

52

in this Part.

The

supplier

shall

file

 a variance petition pursuant to

35

Ill.

 Adin.

 Code

 104, except as modified or supplemented by

this Section,

2)

 The Board may grant a variance from the additional State

requirements

 in this Part without

 following this Section.

b)

 As part of the showing of arbitrary or

unreasonable hardship, the

supplier

shall

demonstrate

that:

1)

Due

to compelling factors

 (which may include economic

factors),

 the supplier is unable to comply with the MCL or

treatment technique requirement;

The

supplier

was:

A)

 In operation on the effective date of the MCL or

treatment

 technique requirement;

or

B)

Not

 in operation on the effective date of the MCL or

treatment technique requirement and no reasonable

alternative source

 of drinking water

 is available to

the supplier;

and

3)

 The variance will not result

 in an unreasonable risk to

health.

The

Board

 will prescribe a schedule

 for:

1)

 Compliance,

 including increments of progress,

 by the

supplier,

 with each MCL and treatment technique requirement

with

respect

 which the variance was granted; and

2)

 Implementation

the

supplier,

during

 the period ending on

the date when compliance

 is required,

 of each additional

control measure for each contaminant subject to the MCL or

treatment technique requirement.

d)

 A schedule of compliance will require compliance with each MCL or

other requirement with respect to which the variance was granted

as expeditiously as practicable; but no schedule shall extend more

than

 12 months after the date of the variance, except as follows:

1)

 The Board may extend the

date for a period not to exceed

three

years

beyond

the

date

the

variance

the

supplier

establishes:

 that

it

 is taking

all practicable

steps to

meet

the

standard;

and:

The

 supplier cannot meet the standard without capital

improvements

that

cannot

completed

within

months;

the

ease

supplier

that

needs

financial

assistance

for

the

necessary

improvements,

the

supplier has entered into an agreement to obtain such

financial assistance; or

C)

 The supplier has entered into an enforceable agreement

to become

 a part of

 a regional PWS; and

53

2)

 In the case of

 a PWS with

 500 or

 fewer service connections

that needs financial assistance for the necessary

improvements,

variance

under

subsections

(d)(1)(A)

(d)(1)(B)

above

may

 be renewed for one or more additional

two

 year periods

 if the supplier establishes that

it

is

taking all practicable steps to meet the final date for

compliance.

e)

 The Board will provide notice and opportunity for a public hearing

as provided

in

35

 Ill.

Adxn.

 Code

 104.

The

Agency

shall

promptly

send

 U~S.~EPA

the Opinion and Order of

the Board granting a variance pursuant to

this Section.

 The Board

may

reconsider

and

modify

grant

variance,

variance

conditions,

U~S.~EPAnotifies

the

 Board of

 a finding pursuant

to Section 1416 of the SDWA.

BOARD NOTE:

 Derived from Section

1416 of the SDWA.

g)

 The Board will not grant a variance:

From

the

MCL

for

total

coliforms;

provided,

 however,

 that

the

Board

may

grant

 a variance from the total coliform MCL

of

 Section

611.325

for

PWSs

 that demonstrate that the

violation of the total

 coliform KCL

 is due to

persistent

growth of total coliforms

 in the distribution system,

 rather

than from fecal or pathogenic contamination,

 from a

treatment

 lapse or deficiency,

 or from a problem in

the

operation or maintenance of the distribution system.

2)

 From any of the treatment technique requirements of Subpart

B of this Part.

3)

 From the residual disinfectant concentration

 (RDC)

requirements

 of Sections 611.241(c)

 and 611.242(b).

h)

 The provisions of Section 611.130 apply to determinations made

pursuant to this Section.

BOARD NOTE:

 Derived from 40 CFR 141.4

 (1992.~).

 U.S. EPA has

reserved the discretion to review and modify or nullify Board

determinations made pursuant to this

Section at 40 CFR 142.23

(199~).

(Source:

 Amended at

 19 Ill.

 Reg.

________,

 effective

______________________

Section 611.113

 Alternative Treatment Techniques

This Section

is intended to be equivalent to

Section 1415(a) (3) of the SDWA.

a)

 Pursuant to this Section,

 the Board may grant an adjusted standard

from a treatment technique requirement.

b)

 The supplier seeking an adjusted standard shall file a petition

pursuant to 35

 111. Adm. Code 106.Subpart G.

C)

justification

the

supplier

 shall demonstrate that an

alternative treatment technique

 is at least

 as effective in

lowering the level of the contaminant with respect to which the

treatment technique requirement was prescribed.

d)

 As a condition of any adjusted standard,

 the Board will require

54

the use

 of the alternative treatment technique.

e)

 The Board will grant adjusted standards for alternative treatment

techniques subject to the following

 conditions:

1)

 All adjusted standards shall be subject to the limitations

CFR

142,

Subpart

incorporated

reference

Section

611.102,

and

2)

All

adjusted standards shall be subject to

review and

approval by U~S~~EPA

 pursuant to 40 CFR 142.46

before

they

become effective.

BOARD

NOTE:

 Derived from Section 1415(a) (3) of the SDWA.

f)

 The provisions of Section 611.130 apply to determinations made

pursuant

this

Section.

(Source:

 Amended at

19

Ill.

Reg.

________,

 effective

______________________

Section 611.125

 Fluoridation Requirement

All CWSs which are required

 to add fluoride to the water shall maintain a

fluoride ion concentration reported as

 F of 0.9

to

 1.2 mg/I

 in its

distribution

 system,

as

 required by Section

 7a of

 -“AN ACT to provide- for

safeguard4r~rithe

ouh1.~

health

by

vesting certain measures of

-eontre-1

and

cupervi

 rtmcnt of

 t’ublic Health

 o-vcr p~ublicWater Suppl.iee~

Regulation Act

 in the State”

 (Ill.

 -Ro~.r. Stat.

 1989,

ch.

lii

 1-/2,

 par.

121(g)(1))1415 ILCS 4O/7a1.

BOARD

NOTE:

 This

 is an additional

 State requirement.

Section 611.130

 Special Requirements for Certain Variances and Adjusted

Standards

a)

 Relief from the TTHM MCL.

1)

 In granting any variance or adjusted standard to a supplier

that is

 a CWS that adds

 a disinfectant at any part of

treatment and which provides water to 10,000 or more persons

on a regular basis

 from the maximum contaminant level for

TTHM

 listed

 in Section 611.310(c),

 the Board will require

application of the best available technology (BAT)

identified

at subsection

 (a)(4)

 below

for that constituent

 as a condition to the relief,

 unless the supplier has

demonstrated through comprehensive engineering assessments

that application of

BAT

is

not technically appropriate and

technically feasible for that system,

 or it would only

result in

 a marginal reduction in TTHM for that supplier.

2)

The

 Board will require the following as

 a condition

for

relief from the TTHM MCL where

it

 does not require the

application of BAT:

A)

 That the supplier continue to investigate the

following methods as an alternative means of

significantly reducing the level of

TTHM, according to

a definite schedule:

I)

 introduction of off—line water storage for

THM

precursor reduction;

55

ii)

 aeration for TTHM reduction,

where geography and

climate allow;

iii)

 introduction of

 clarification, where not

presently practiced;

iv)

 use of alternative sources of raw water;

and

v)

 use of ozone as an alternative or supplemental

disinfectant or oxidant, and

B)

 That the supplier report results of that investigation

to the Agency.

3)

 The Agency shall petition the Board to reconsider or modify

 a variance or adjusted standard, pursuant to 35 Ill.

 Adxn.

Code 101.Subpart K,

if

 it determines that an alternative

method identified by the supplier pursuant to subsection

(a(2)

 above

 is technically feasible and would result in

a

significant reduction

in

TTHM.

Best

available

technology

for

TTHM

reduction:

A)

use

of chioramiries

as

 an alternative or supplemental

disinfectant,

B)

 use of chlorine dioxide as an alternative or

supplemental disinfectant,

or

C)

 improved existing clarification

 for THM precursor

reduction.

BOARD NOTE:

Derived

from

CFR

 142.60

(l99~).

The

restrictions

of this subsection do

 riot apply to

suppliers regulated for TTHM as an additional state

requirement.

 See the Board Note to Section

611.301(c).

b)

 Relief

 from the fluoride MCL.

1)

 In granting any variance or adjusted standard to a supplier

that

 is a CWS

from

the

 maximum contaminant level for

fluoride listed in Section

 611.301(b),

 the Board will

require application of the best available technology

 (BAT)

identified at subsection

 (b)(4) below for that constituent

as

 a condition to the relief, unless the supplier has

demonstrated through comprehensive engineering assessments

that application of BAT

is

 not technically appropriate and

technically feasible for that supplier.

2)

 The Board will require the following as

 a condition for

relief from the

 fluoride MCL where

 it does not require the

application of BAT:

A)

 That the supplier continue to investigate the

following methods as an alternative means of

significantly reducing the level of TTHM,

 according to

a definite schedule:

i)

 modification of

 lime softening;

ii)

 alum

coagulation;

56

iii)

 electrodialysis;

iv)

 anion exchange resins;

v)

 well field management;

vi)

 use of alternative sources of raw water; and

vii)

regionalization,

and

B)

 That the supplier report results

of

that investigation

to the Agency.

3)

 The Agency shall petition the Board to reconsider or modify

a variance or adjusted standard, pursuant to 35

Ill.

 Adin.

Code 10l.Subpart K,

if

 it determines

 that an alternative

method identified by the supplier pursuant to subsection

(b)(2)

 above

 is technically feasible

 and would result in a

significant reduction in

 fluoride.

4)

 Best available technology for fluoride reduction:

A)

 activated alumina absorption centrally applied,

and

B)

 reverse osmosis centrally applied.

BOARD NOTE:

 Derived

 from 40 CFR 142.61

 (1992.4).

c)

 Relief from an inorganic chemical contaminant, VOC,

 or SOC MCL.

granting

supplier

that

CWS

NTNCWS

any

variance or adjusted standard

 from the maximum contaminant

levels for any VOC or SOC,

 listed in Section 611.311(a)

or

(C),

 or for any inorganic chemical

 contaminant,

 listed in

Section 611.301, the supplier must have first applied the

best available technology

 (BAT)

 identified at Section

611.311(b)

 (VOC5 and SOC5)

 or Section 611.301(c)

 (inorganic

chemical contaminants)

 for that constituent,

 unless the

supplier has demonstrated through comprehensive engineering

assessments that application of BAT would achieve only a

minimal

and

 insignificant reduction in the level of

 contaminant.

BOARD NOTE:

 US~EPA lists BAT for each SOC and VOC at 40

CFR

142.62(a)

 (19924),

 as amended at

57

I~cd.

Reg.

31848

(July

17,

 1~92)-, for the purposes

of variances

and

exemptions (adjusted standards).

 That list

 is identical to

the

list

CFR

 141.61(b), with three exceptions:

the

section 142.62 listing adds PTA (“PAT”)

 for alachlor;

 lists

OX

for

 hexachlorobenzene, instead of

GAC;

and omits PTA for

toxaphene.

 The Board

has chosen to use the section

141.61(a)

 (Section 611.311) BAT listing because we believe

UCEI~A

intcndcdthat

this

leads

 greater

consistency and

hccau~cthe preamble at

 57 red.

 Ike-g.

 31778 7’~indicat?-o that

thip listing- is

 a-orrcct as to

alaehl-or and hoxaah-1orobc~scnc

(although the- preamble at

&6

Fcd~.

flog. 352~

(—Jan.

30,

 1~91-)

indicatco

 to3caDhenc’

2)

The

 Board may require any

of

the following as a condition

for relief from a

MCL listed in Section 611.301

 or 611.311:

A)

 That the supplier continue to investigate alternative

57

means

of

 compliance according to a definite schedule,

arid

B)

 That the supplier report results

that

investigation

to the Agency.

3)

 The Agency

 shall petition the Board to reconsider or modify

a variance or

adjusted

standard,

 pursuant to

35

 Ill.

 Adtn.

Code 1O1.Subpart

K,

if

 it determines that an alternative

method identified by the supplier pursuant to subsection

(c)(2)

 above

 is technically feasible.

BOARD NOTE:

 Derived from 40 CFR 142.62(a)

 through

(e)

(1992-4).

ci)

 Conditions requiring use of bottled water or point—of—use or

point—of—entry devices.

 In granting any variance or adjusted

standard

 from the maximum contaminant levels

 for organic and

inorganic

chemicals or

an adjusted standard from the treatment

technique

for

lead

and

copper,

 the Board may impose certain

conditions

requiring

the

use

 bottled water, point—of—entry

devices,

 or point-of—use devices to avoid an unreasonable risk to

health,

limited

provided

subsections

(e)

and

(f)

 below.

1)

 Relief from an

MCL.

The

Board

may,

when

granting

any

variance

adjusted

standard

from

the

 MCL requirements

of

Sections

 611.301 and 611.311,

 impose

 a condition that

requires a supplier to use bottled water, point—of—use

devices,

 point—of—entry devices or other means to avoid an

unreasonable risk to health.

2)

 Relief

from corrosion control

treatment.

The

Board

may,

when granting

an adjusted standard from the corrosion

control

 treatment requirements

 for lead and copper of

Sections 611.351 and 611.352,

 impose a condition that

requires a supplier to use bottled water and point—of—use

devices

or other means,

but

not point—of—entry devices, to

avoid

unreasonable

risk

health.

3)

 Relief from source water treatment or service line

replacement.

 The Board may, when granting an exemption from

the

 source water treatment and lead service line replacement

requirements for lead and

copper under Sections 611.353 or

611.354,

 impose

 a condition that

 requires

 a supplier to use

point—of—entry devices to avoid an unreasonable risk to

health.

BOARD NOTE:

 Derived from 40 CFR

142.62(f)

 (19924).

Use

bottled

water.

Suppliers

that

propose

use

bottled water

as a condition for receiving a variance or an

adjusted standard from the requirements of Section 611.301 or

Section 611.311, or an adjusted standard from the requirements of

Sections 611.351 through 611.354

must meet the requirements of

either

subsections

 (e)(1),

 (e)(2),

 (e)(3),

and

 (e)(6) or

 (e)(4),

(e)(5) and

 (e)(6) below:

1)

 The supplier must develop a monitoring program for Board

approval

that provides reasonable assurances that the

bottled water meets all MCLs of Sections 611.301 and 611.311

and submit

 a description of this program as part of its

 petition.

 The proposed program must describe how the

58

supplier

will

comply

with

each

requirement

this

subsection.

2)

The

 supplier must monitor representative samples of the

bottled

water

for

all

 contaminants regulated under Sections

611.301 and 611.311 during the first three—month period that

it supplies the bottled water to the

public,

and

annually

thereafter.

3)

 The supplier shall

 annually provide

the results of the

monitoring program to the Agency.

4)

 The supplier must receive a certification from the bottled

water company as

 to each of the following:

A)

 that the bottled water supplied has been taken from an

approved source of bottled water,

 as such is defined

in Section

 611.101;

that

the

approved

source

bottled

water

has

conducted monitoring in accordance with 21

CFR

129.80(g) (1) through

 (3);

and

that

the

bottled

water

does

not

exceed

any

MCLs

quality limits

as

set

out

 in 21 CFR

 103.35,

 110,

and

129.

5)

 The supplier shall provide the certification required by

subsection

 (e)(4)

 above to the Agency during the first

quarter after

it begins supplying bottled water and annually

thereafter.

6)

 The supplier shall

 assure the provision of sufficient

quantities of bottled water to every affected person

supplied by the supplier via door—to—door bottled water

delivery.

Derived

from

CFR

142.62(g)

(1992-4).

Use

 of point—of—entry devices.

 Before the Board grants any PWS

a

variance or adjusted standard from any NPDWR that includes

a

condition requiring the use

of

 a point—of-entry device, the

supplier must demonstrate

 to the Board each of the following:

1)

 that the supplier will operate and maintain the device;

2)

 that the device provides health protection equivalent to

that provided by central treatment;

3)

 that the supplier will maintain the microbiological safety

of the water at

 all times;

4)

 that the supplier has established standards for performance,

conducted a rigorous engineering design review,

 and field

tested the device;

5)

 that the operation

 and maintenance of the device will

account for any potential for

 increased concentrations of

heterotrophic

bacteria resulting through the use of

activated carbon,

by backwashing, post—contactor

disinfection, and heterotrophic plate count monitoring;

59

6)

 that buildings connected to the supplier’s distribution

system have sufficient devices properly

 installed,

maintained,

 and monitored to assure that all consumers

are

protected;

and

that

the

use

the

device

will

not

cause

increased

corrosion

lead

and

copper

bearing

materials

located

between

the

device

and

the

tap

 that

 could increase

contaminant

 levels

 at the tap.

BOARD NOTE:

 Derived from

 40 CFR 142.62(h)

 (19924).

(Source:

 Amended at

19

 Ill.

 Reg.

________,

 effective

______________________

SUBPART

B:

 FILTRATION AND DISINFECTION

Section 611.201

 Requiring

 a Demonstration

The Agency shall notify each supplier in writing of the date on which any

demonstrations

 pursuant

to

the Section are required.

 The Agency shall require

demonstrations

 at times which meet the U.S~...EPArequirements

 for that type of

demonstration,

 allowing sufficient time for

the

supplier

to

collect the

necessary information.

Section 611.212

 Groundwater under Direct Influence of Surface Water

The Agency shall, pursuant

 to Section 611.201,

 require all CWSs to demonstrate

whether they are using

 “groundwater under the direct influence of surface

waters’ by June 29, 1994. The Agency shall determine with information provided

by the supplier whether

 a PWS

 uses “groundwater under the direct influence of

surface water” on an individual basis.

 The Agency shall determine that

a

groundwater source

 is under the direct influence of surface water based upon:

Physical

characteristics

the

source:

whether

the

source

obviously a surface water source,

 such

as

 a lake or stream.

 Other

sources which may be subject to influence from surface waters

include:

 springs,

 infiltration galleries, wells or other

 collectors

 in subsurface aquifers.

b)

 Well construction characteristics and geology with field

evaluation.

1)

 The Agency may use the wellhead protection program’s

requirements, which include delineation of welihead

protection areas, assessment of sources of contamination and

implementation of management control systems,

 to determine

if the wellhead is under the influence of surface water.

2)

 Wells less than or equal to 50 feet in depth are likely to

be under the influence of surface water.

3)

 Wells greater than 50 feet in depth are likely to be under

the influence of surface water,

 unless they include:

A)

 A surface sanitary seal using bentonite clay,

 concrete

similar material,

B)

 A well casing that penetrates consolidated (slowly

permeable) material,

and

C)

 A well casing that

 is only perforated or screened

60

below consolidated (slowly permeable)

 material.

4)

 A source which

 is less than 200 feet from any surface water

is

 likely to be under the influence of surface water.

Any

structural

modifications

prevent

the

direct

influence

surface water and eliminate the potential

 for Giardia

 lamblia cyst

contamination.

ci)

 Source water quality records.

The

 following are indicative that

a

source

 is under the

 influence of surface water:

1)

 A record of total coliforrn or fecal coliform contamination

in untreated samples collected over the past three years,

2)

 A history of turbidity problems associated with the

 source,

or

3)

 A history of known or suspected outbreaks of Giardia lamblia

or other pathogenic organism associated with surface water

(e.g.

 cryptosporidium), which has been attributed to that

source.

0)

 Significant and relatively rapid shifts

 in water characteristics

such

 as turbidity,

 temperature, conductivity

 or pH.

1)

 A variation

 in turbity of

 0.5 NTU or more over one year

is

indicative of surface influence.

2)

 A variation

 in temperature of 9 Fahrenheit degrees or more

over

one

year

indicative

surface

influence.

Significant

and

relatively

rapid

shifts

 in water characteristics

such as turbidity,

 temperature,

 conductivity

 or pH which closely

correlate to climatological or surface water conditions are

indicative of surface water influence.

1)

 Evidence of particulate matter associated with the surface

water,

or,

2)

 Turbidity or temperature data which correlates to that of a

nearby water source.

g)

 Particulate analysis:

 Significant occurance of insects or other

macroorganisms,

 algae or large diameter pathogens such as Giardia

lamblia is

 indicative of surface influence.

1)

 “Large diameter” particulates are those over

 7 micrometers.

2)

 ?articulates must be measured as specified

the

“Guidance

Manual

 for Compliance with the Filtration and Disinfection

Requirements

 for Public Water Systems using Surface Water

Sources”,

incorporated

reference

Section

611.102.

The

potential

for

contamination

small—diameter

pathogens,

such

as bacteria or viruses, does

not

 alone render the source “under

the direct influence of surface water”.

BOMkD NOTE:

 Derived from the definition of “groundwater under the

direct influence of surface water”

 in 40 CFR 141.2

 (19924);

 from

the Preamble at

54

Fed.

 Reg.

27489

 (June

29,

 1989);

 and from the

U.S,EPA “Guidance Manual

for Compliance with the Filtration and

61

Disinfection Requirements for Public Water Systems using Surface

Water Sources”,

 incorporated by reference

in

 Section 611.102.

(Source:

 Amended at

19

 Ill.

 Reg.

________,

 effective

______________________

Section

611.220

General

Requirements

a)

The

requirements of this Subpart constitute NPDWRs.

 This Subpart

establishes criteria under which

 filtration

 is required as

a

treatment

 technique for PWSs supplied by a surface water source

and PWSs supplied by

 a groundwater source under the direct

influence of

 surface water.

 In addition,

 these regulations

establish treatment technique requirements

 in lieu of MCLs for the

following contaminants:

 Giardia

 lamblia,

 viruses, HPC bacteria,

Legionella and turbidity.

 Each supplier with a surface water

source

groundwater

 source under the direct influence of

surface water shall provide treatment of that source water that

complies with these treatment technique requirements.

The

treatment technique requirements consist of installing and

properly

operating

water

treatment

processes

which

reliably

achieve:

1)

 At least 99.9 percent

 (3-log)

 removal or inactivation of

Giardia lamblia cysts between a point where the raw water

is

not subject to recontamination by surface water runoff

 and a

point downstream before or at the first

 customer;

and

2)

 At least

 99.99 percent

 (4—log)

 removal or inactivation of

viruses between a point where the raw water is not

 subject

to recontamination by surface water runoff and a point

downstream before or at the first customer.

b)

 A supplier using a surface water source or

 a groundwater source

under the direct

 influence of surface water

 is considered to be in

compliance with the requirements

 of subsection

(a)

if:

1)

 It meets the requirements for avoiding filtration in

Sections

 611.230 through 611.232 and the disinfection

requirements

 in Section 611.241;

or

meets

the

filtration

requirements

Section

611.250

and

the disinfection requirements

 in Section 611.242.

C)

Each

supplier

using

 surface water source or a groundwater source

under

the

direct

influence

 of surface water

 shall have

 a certified

operator

pursuant

Ill.

Adm.

Code

603.103

and

Ill.

11ev.

stat.

1991,

 oh.-

 11112,

 par.

501

Ct

ocqthe Public Water Supply Operations

Act

 1415 ILCS 45).

BOARD

NOTE:

Derived

from

CFR

141.70

(199-3~4).

(Source:

 Amended at

19

 Ill.

 Reg.

 effective

_____________________

SUBPART

F:

 MAXIMUM CONTAMINANT LEVELS (MCL’S)

Section 611.300

 Old MCLs for Inorganic Chemicals

a)

 The old MCLs listed in subsection

 (b) below for inorganic

chemicals apply only to CWS suppliers.

 Compliance with old MCLs

for inorganic chemicals

 is calculated pursuant to Section 611.6l2~

except

that

compliance

with

 the MCL for arsenic

 is calculated

62

pursuant

 to Section 611.611.

BOARD NOTE:

 Derived from 40 CFR 141.11(a)

 (1992.4).

by

The

 following are the old MCL’S for inorganic chemicals,

 with the

old

MCL

for

cyanide

effective

only

until

the

revised

MCL

for

cyanide

at

 Section 611.301(a)

 becomes

 effective:

Contaminant

 Level, mg/L

 Additional

State

Requirement

(*)

Arsenic

0.05

Cyanide

Iron

1.0

*

Manganese

 0.15

*

Zinc

5.

*

BOARD

NOTE:

Derived

from

CFR

141.11(b)

(c)

(1992-4).

This provision,

 which corresponds with 40 CFR 141.11,

was

formerly the only listing of MCLs

 for inorganic parameters.

However,

U.S.

EPA

 added another

 listing

of

 inorganic MCLs at

40 CFR 141.62 at

 56 Fed.

 Reg.

3594

 (Jan.

30,

 1991).

Following the changing Q~S~EPAcodification scheme creates

two

 listings of MCLs:

 one at this Section and one at

Section

611.301.

This

causes

fluoride

appear

both

the

CFR

141.11(b)

and

141.62(b)

listings

with

the

same

MCL.

The Board has deleted the corresponding

 fluoride MCL

 from

this

Section

favor

that

which

appears

Section

611.301(b).

 uCEPA adopted a

 IICL for cyanide at 40

 CI’fl

14~l.6~(b)(13, effective January

17,

 19~94,—at57

 Fed.

 Rcg.

3-1847

 (July

17,

 1992).

 That MCL

is

the

 same-

as

that

this

Ceotion.

The

Board

haa

rendered

the

state

HaL- at

this

Cection

 ineffective on the date

 the-

new

federal MCL

become-a

effective.

c)

 This subsection corresponds with 40

CFR

141.11(c),

the

 substance

which

the

Board

has

codified

subsection

(by

above.

This

statement maintains

 structural parity with the federal rules.

d)

 Nitrate.

1)

 The Board incorporates by reference 40 CFR 141.11(d)

(1992.4).

 This incorporation

 includes no later editions or

amendments.

Non—CWSs

may

exceed

the

MCL

for

nitrate

under

the

following

circumstances:

A)

 The nitrate level must not exceed

 20 mg/L,

B)

 The water must not be available to children under six

months of age,

C)

 There will be continuous posting of the

 fact that the

nitrate

level

exceeds

mg/L

together

with

the

 public

health effects information set

 forth in paragraph

(2)

of Section 611.Appendix A,

D)

 The supplier will annually notify local public health

authorities and Public Health of the nitrate levels

that exceed

 10 mg/L,

and

63

adverse

 public health effects result.

BOARD

NOTE:

 Derived from

CFR

141.11(d)

(1992-4).

Public health regulations may

 impose a nitrate

limitation

requirement.

Those

regulations

are

Ill.

 Adm.

Code 900.50.

e)

 The following supplementary condition applies to the MCLs

 Listed

in subsection

(b)

 above for iron and manganese:

1)

 CWS suppliers that serve

 a population of

 1000 or less,

or

300 service connections or less,

are

exempt

from

the

standards for iron and manganese.

The

Agency

may,

special

exception

permit,

allow

iron

and

manganese in excess of the MCL

 if sequestration tried on an

experimental basis proves to be effective.

 If sequestration

is not effective,

 positive iron or manganese reduction

treatment as applicable must be provided.

 Experimental use

of a sequestering agent may be tried only

 if approved by

special exception permit.

BOARD NOTE:

This

 is an additional State requirement.

(Source:

 Amended

at

19

 Ill. Reg.

________,

 effective

______________________

Section 611.301

 Revised MCLs for Inorganic Chemicals

a)

 This

 subsection corresponds with 40 CFR 141.62(a), reserved by

U~.S~.EPA.This statement maintains structural consistency with

U~S~.EPArules.

b)

 The MCL5

 in the following table apply

 to CWSs.

 Except for

fluoride,

 the MCLs also apply to NTNCWS8.

 The MCLs for nitrate,

nitrite and total nitrate and nitrite also apply to transient non—

CWSs.

 The MCL5 for antimony,

 beryllium,

 cyanide,

 nickel,

and

thallium are effective January

17,

 1994.

Contaminant

MCL

 Units

Antimony

 0.006

 mg/L

Asbestos

7

MFL

Barium

2

 mg/L

Beryllium

 0.004

 mg/L

Cadmium

 0.005

 mg/L

Chromium

0.1

 mg/L

Cyanide

 (as free CN~)

0.2

 mg/L

Fluoride

4.0

 mg/L

Mercury

 0.002

 mg/L

Nickel

0.1

 mg/L

Nitrate

(as

N)

10.

 rng/L

Nitrite

(as

N)

1.

 mg/L

Total Nitrate and Nitrite

10.

 rng/L

(~S

N)

Selenium

 0.05

 mg/L

Thallium

 0.002

 mg/L

BOARD

NOTE:

 See the definition of “initial compliance

period” at Section 611.101.

 The federal secondary MCL

for

fluoride is 2.0

mg/L.

 The federal regulations require

public notice when water exceeds this level.

 See 40 CFR

143.3

 and 143.5

 (19924).

64

c)

 U..S,~..EPAhas

 identified the following as BAT for

achieving

compliance with the MCL

 for the inorganic contaminants identified

in subsection

(b)

 above, except for fluoride:

Contaminant

BAT

(5)

Antimony

C/F

RO

Asbestos

C/F

DDF

CC

Barium

IX

LIME

RO

ED

Beryllium

AA

C/F

IX

LIME

HO

Cadmium

C/F

IX

LIME

RO

Chromium

C/F

IX

LIME,

 BAT for Cr(III)

 only

RO

Cyanide

IX

HO

Cl2

Mercury

C/F,

BAT

only

influent

concentrations

 less than or equal to

(~)

10 pg/L

GAC

LIME,

BAT

only

influent

concentrations ~ 10

 .zg/L

RO,

BAT

only

influent

 concentrations

S

10

pg/L

Nickel

IX

LIME

HO

Nitrate

IX

RO

ED

Nitrite

IX

HO

Selenium

 A.AL

C/F,

 BAT for Se(IV) only

LIME

RO

65

ED

Thallium

AAL

IX

Abbreviations

AAL

 Activated alumina

C/F

 Coagulation/filtration

DDF

 Direct

 and diatomite filtration

GAC

Granular

activated

carbon

IX

 Ion exchange

LIME

 Lime softening

RO

 Reverse osmosis

CC

 Corrosion control

ED

 Electrodialysis

Cl.,

 Oxidation (chlorine)

Ultraviolet

irradiation

BOARD

NOTE:

Derived

from

CFR

141.62

(1992.4).

(Source:

Amended

Ill.

Reg.

________,

 effective

______________________)

Section

611.310

Old

MCLs

for

Organic

Chemicals

The following are the MCLs

 for organic chemicals.

The

MCLs

for

organic

chemicals

 in subsections

 (a) and

(b)

 apply to all

 CWSs.

 Compliance with the

 MCLs in subsections

(a)

and

(b)

 is calculated pursuant to Section

 611.641 et

seq.

 Compliance with

 the MCi

 for TTHM

 is calculated pursuant to Subpart

P.

Contaminant

 Level

 Additional

(mg/L)

 State

Requirement

(*)

a)

 Chlorinated hydrocarbons:

Aidrin

 0.001

*

DDT

0.05

*

Dieldrin

 0.001

*

Heptachlor

 0.0001

*

Heptachlor

epoxide

0.0002

*

BOARD

NOTE:

Originally

derived

from

CFR

141.12(a)

(19944), U~S~..EPAremoved the last entry in this subsection

and

marked

reserved

Fed.

Reg.

31838

(July

17,

1992).

 U~~S.~EPA

 added

another listing of organic MCLs

 at 40

CFR 141.61

 (19924),-

 -as amended

at

57

 Fed.

 Peg.

 318-47

 (July

17,

 1992)-.

 Heptachlor, heptachior epoxide, and 2,4—D appear

both

 this Section

 and in Section

 611.311, with a

different

MCL

each

Section.

The

heptachlor,

heptachlor

epoxide,

 and 2,4—D MCLs

 in this Section

 are Illinois

limitations

that

are

stringent

than

the

federal

requirements.

 However, detection of these contaminants or

violation of their

federally—derived

revised Section

 611.311

MCLs imposes more stringent monitoring,

 reporting,

and

notice requirements.

b)

 Chlorophenoxys:

2,4—D

 0.01

BOARD NOTE:

 Originally derived

 from 40 CFR 141.12(b)

66

(19944),

 U.S.

 EPA removed the

 last entry

 in this subsection

and marked

it

 reserved

at

56

 Fed.

 Reg.

3578

 (Jan.

30,

 1991).

See the preceding Board Note regarding the dual

 listing of

MCLs for 2,4-D.

c)

 TTHM

 0.10

*

BOARD

NOTE:

Derived

part

from

CFR

141.12(c)

(1992-4).

This

is

 an additional State requirement

 to the extent

 it applies to

supplies other than CWS5 that add

 a disinfectant

at

 any part of

treatment and which provide water to 10,000 or more

 individuals.

(Source:

 Amended

at

19

 Ill. Hog.

________,

 effective

_____________________

Section

611.311

Revised

MCL5

for

Organic

Contaminants

Volatile organic chemical contaminants.

 The following MCLs

for

volatile organic chemical contaminants

 (VOCS) apply to CWS

suppliers and NTNCWS suppliers.

 The MCLs for dichlorometharie,

1,2,4—trichlorobenzene,

 and 1,1,2—trichloroethane are effective

January 17,

 1994.

CAS

No.

Contaminant

MCi

(mg/L)

71—43—2

 Benzerie

 0.005

56—23—5

 Carbon tetrachloride

 0.005

95—50—1

 o—Dichlorobenzene

0.6

106—46—7

 p—Dichlorobenzene

 0.075

107—06-2

 l,2—Dichloroethane

 0.005

75—35—4

 1,1—Dichloroethylene

 0.007

156—59—2

 cis—1, 2—Dichloroethylene

 0.07

156—60—5

trans—1,2—Dichloroethylene

0.1

75—09—2

 Dichioromethane

 (methylene chloride)

 0.005

78—87—5

 1,2—Dichloropropane

 0.005

 100—41—4

 Ethylbenzene

0.7

108—90-7

 Monochlorobenzene

0.1

100—42—S

 Styrene

0.1

127—18—4

 Tetrachloroethylene

 0.005

108—88—3

 Toluerie

1

120—82—1

1,2,

4—Trichlorobenzene

0.07

71—55—6

 1,l,1—Trichloroethane

0.2

79—00—5

 1,1, 2—Trichioroethane

 0.005

79—01—6

 Trichloroethylene

 0.005

75—01—4

 Vinyl chloride

 0.002

1330—20—7

 Xylenes

 (total)

10

BOARD NOTE:

 See the definition of “initial compliance

period”

 at Section 611.101.

b)

~

 has identified,

 as indicated below, granular activated

carbon

 (GAC),

 packed tower aeration

 (PTA),

 or oxidation

 (OX)

as

BAT for achieving compliance with the MCLs for volatile organic

chemical contaminants

 and synthetic organic chemical contaminants

in subsections

 (a) and

(c)

 of this Section.

15972-60-8

 Alachlor

GAC

116-06-3

 Aldicarb

GAC

 1646—87-4

 Aldicarb sulfone

GAC

1646—87—3

 Aldj.carb sulfoxide

GAC

1912—24—9

 Atrazine

GAC

71—43-2

 Benzene

 GAC, PTA

67

50—32—8

 Benzo(a)pyrene

GAG

1563—66—2

 Carbofuran

SAC

56—23—5

 Carbon tetrachloride

 GAC,

PTA

57-74—9

 Chlordane

SAC

94—75—7

 2,4—D

GAG

75-99—0

 Dalapon

GAG

96—12—8

 Dibromochloropropane

 SAC, PTA

95—50—1

 o-Dichlorobenzene

 SAC, PTA

106-46-7

 p—Dichlorobenzene

 SAC, PTA

107—06-2

 1,2—Dichioroethane

 SAC, PTA

156—59—2

 cis—1,2—Dichloroethylene

 SAC, PTA

156-60—5

 trans—1,2—Dichoroethylene

 SAC, PTA

75—35—4

 1,1—Dichloroethylene

 SAC, PTA

75-09—2

 Dichloromethane

PTA

78—87—5

 1,2—Dichloropropane

 SAC, PTA

103—23—1

 Di(2—ethylhexyl)adipate

 SAC, PTA

117—81—7

 Di(2-ethylhexyl)phthalate

SAC

88—85—7

 Dinoseb

SAC

85—00—7

 Diquat

SAC

145—73—3

 Endothall

SAC

72—20—8

 Endrin

GAC

106-93-4

 Ethylene dibromide

 (EDB)

 SAC, PTA

100—41-4

 Ethylbenzene

 GAC, PTA

1071—53—6

 Glyphosate

OX

76-44—8

 Heptachlor

SAC

1024—57—3

 Heptachlor epoxide

GAC

118—74—1

 Hexachlorobenzene

SAC

77-47—3

 Hexachiorocyclopentadiene

 SAC, PTA

58-89—9

 Lindane

SAC

72—43—5

 Methoxychlor

SAC

108—90—7

 Monochlorobenzene

 GAC,

PTA

23135—22—0

 Oxamyl

GAC

87-86—5

 Pentachlorophenol

SAC

1918—02—1

 Picloram

SAC

1336—36—3

 Polychlorinated

biphenyls

(PCB)

SAC

122—34—9

 Simazine

SAC

100—42-5

 Styrene

 GAC, PTA

1746—01—6

 2,3,7,8—TCDD

SAC

127-18—4

 Tetrachloroethylene

 SAC, PTA

108—88-3

Toluene

SAC

8001—35—2

 Toxaphene

GAG

120—82—1

 l,2,4—trichlorobenzene

 GAC,

PTA

71-55—6

 1,1,1—Trichioroethane

 GAC, PTA

79-00—5

 1,1,2—trichioroethane

 GAC, PTA

79-01—6

 Trichioroethylene

 SAC, PTA

93—72—1

 2,4,5—TP

GAC

75—01—4

 Vinyl chloride

PTA

1330—20-7

 Xylene

 SAC,

PTA

t~UALW

:iur~e

 ~aminat~.on

 ot tnc

 prcarna.Le to tne tnaoc

amendments,

 at S~Pod. Reg.

2529

 (Jan.

30,

 1991)

 indicate-s

that U~EPAmay not have intended the adoption -of PTA for R7~.T

for toxaphenc.

 The Board

included

it

because -that

 i-s ~,hab

the federal rule actually indicates.

 Ccc the Board Note te

ecotion ~11..130IaU1~..

C)

 Synthetic organic chemical contaminants.

 The following )lCLs for

synthetic organic chemical contaminants

 (SOCS)

 apply

 to CWS and

NTNCWS suppliers.

 The MCLs for benzo(a)pyrene,

 dalapon,

 di(2-

ethylhexyl)adipate, di(2—ethylhexyl)phthalate,

dinoseb,

 diquat,

endothall,

 endrin,

 glyphosate, hexachlorobenzene,

 hexachiorocyclo—

pentadiene, oxamyl

 (vydate), picloram, simazine,

and 2,3,7,8—TCDD

68

(dioxin)

are

effective

January

17,

1994.

CAS

Number

Contaminant

MCL

(mg/L)

15972—60—8

 hlachlor

 0.002

116—06—3

 Aldicarb

 0.0O-2

1646—87—4

 Aldicarb sulfone

 0.002

1646—87—3

 Aldicarb sulfoxide

 0.004

1912—24—9

 Atrazine

 0.003

50—32—8

 Benzo(a)pyrene

 0.0002

1563—66—2

 Carbofuran

 0.04

57—74—9

 Chlordane

 0.002

94—75—7

2,4—D

0.07

75—99—0

 Dalapon

0.2

96—12—8

Dibromochloropropane

0.0002

103—23—1

 Di(2—ethylhexyl)adipate

0.4

117—81—7

 Di(2—ethylhexyl)phthalate

 0.006

88—85—7

 Dinoseb

 0.007

85—00—7

 Diquat

 0.02

145—73—3

 Endothall

0.1

72—20-8

 Endrin

 0.002

106—93—4

 Ethylene dibromide

 0.00005

1071—53—6

 Clyphosato

0.7

76—44—8

 Heptachlor

 0.0004

1024—57—3

 Heptachior epoxide

 0.0002

118—74—1

 Hexachlorobenzene

 0.001

77—47—4

 Hexachlorocyclopentadiene

 0.05

58—89—9

 Lindane

 0.0002

72—43—5

 Methoxychlor

 0.04

23135—22—0

Oxamyl

(Vydate)

0.2

87—86—5

 Pentachlorophenol

 0.001

1918—02-1

 Picloram

0.5

1336—36-3

 Polychiorinated biphenyls

 (PCB5)

 0.0005

122—34—9

Simazine

0.004

 1746—01-6

 2,3,7,8—TCDD

 (Dioxin)

 0.00000003

8001—35—2

 Toxaphene

 0.003

93—72—1

 2,4,5—TP

 0.05

BOARD NOTE:

 Derived from 40 CFR 141.61

 (1992-4),

as

amended

Fad.

flog.

31847

(July

17,

1992).

See

the

definition

of “initial compliance period” at Section 611.101.

 More

stringent

state

MCL5

for

 2,4-D,

 heptachior, and heptachlor

epoxide

appear

Section

611.310.

See

the

Board

Note

that

provision.

The

effectiveness

the

MCLs

for

aldicarb,

aldicarb

sulfone,

and

aldicarb

sulfoxide

are

administratively

stayed

until

the

Board

takes

further

administrative action to end this stay.

 However,

 suppliers

must monitor

 for these three SOC5 pursuant to Section

611.648.

 See 40 CFR 141.6(g)

(1992-4)

and

57

Fed.

Reg.

22178

(May 27,

 1992).

(Source:

 Amended at

 19 Ill.

 Hog.

________,

 effective

_____________________

Section 611.325

 Microbiological Contaminants

a)

The

 MCI.. is based on the presence or absence of total coliforms in

a sample,

 rather than coliform density.

1)

For

 a supplier which collects at least 40 samples per month,

if no more than 5.0 percent of the

 samples collected during

a month are total coliform—positive,

 the supplier is in

compliance with the MCL for total coliforms.

69

For

supplier

which

collects

fewer

than

samples

per

month,

than

one

sample

collected

during

month

total

coliform—positive,

the

supplier

compliance

with

the

MCL

for

total

coliforms.

b)

Any

 fecal coliform-positive repeat sample or

 E. coli—positive

repeat

sample,

any

total

coliform—positive

repeat

sample

following a fecal co.iform—positive

 or E. coli—positive routine

 Bample, constitutes a violation of the MCL for total coliforma.

For

purposes of the public notification requirements

 in Section

611.851

et

 seq.,

 this is

 a violation that may pose an acute risk

to

health.

c)

 A supplier

 shall

determine compliance with the MCL for total

coliforms

subsections

(a)

and

(b)

for

each

month

 which it

is

required

monitor

for

total

coliforms.

d)

 BATs

for

achieving

compliance

with

the

MCL

for

total

coliforms

subsections

(a)

and

 (b):

1)

 Protection of wells

 from contamination by coliforms by

appropriate placement

 and construction;

2)

 Maintenance

 of RDC throughout

 the distribution system;

3)

 Proper maintenance of the distribution system including

appropriate pipe replacement and repair procedures, main

flushing programs,

 proper operation and maintenance of

storage tanks and reservoirs and continual maintenance of

positive

water

pressure

all

parts

the

distribution

system;

Filtration

and

disinfection

 surface water,

 as described

Subpart

 or disinfection of groundwater using strong

oxidants

such

chlorine,

chlorine

dioxide

ozone;

5)

 For systems using groundwater, compliance with the welihead

protection program,

 after

U.~S.~EPAapproves the program.

BOARD NOTE:

 Derived from

 40 CFR

141.63

 (19894),

 as amended

at

 54 Fed.

 fl~.

275-62,

 June 29, 1989

(Source:

 Amended at

 19 Ill.

 Reg.

________,

 effective

_____________________

SUBPART G:

 LEAD AND COPPER

Section 611.350

 General Requirements

a)

 Applicability and Scope

1)

 Applicability.

 The requirements

 of this Subpart constitute

national primary drinking water regulations

 for lead and

copper.

 This Subpart applies to all community water systems

(CWSB) and non—transiónt, non—community water systems

(NTNCWS5).

2)

 Scope.

 This Subpart establishes a treatment technique that

includes requirements for corrosion control treatment,

source water treatment,

 lead service line replacement,

and

public education.

 These requirements are triggered,

 in some

cases,

 by lead and copper action

 levels measured in samples

70

collected at consumers’

 taps.

b)

Definitions.

For

the

purposes

only

this

Subpart,

 the following

terms shall have the following meanings:

“Action level” means that concentration

 of lead or copper in

water computed pursuant to subsection

 (c) below that

determines,

some

cases,

the

treatment

requirements

this Subpart which

 a supplier must complete.

 The action

level

 for lead is

0.015

mg/L.

The

action

level

for

copper

is 1.3 mg/L.

“Corrosion

 inhibitor” means

 a substance capable of reducing

the

corrosivity of water toward metal plumbing

materials,

especially

lead

and

copper,

forming

protective

film

the interior surface of those materials.

“Effective corrosion inhibitor residual” means a concentra-

tion of inhibitor

 in the drinking water sufficient to form a

passivating

film

the

interior

walls

pipe.

“Exceed”,

 as this term

 is applied to either the lead or the

copper action

 level, means that the 90th percentile level of

the supplier’s

 samples collected during a six—month

monitoring period is greater than the action level

 for that

contaminant.

“First

draw

sample”

means

 one—liter sample of tap water,

collected in accordance with Section 611.356(b) (2), that has

been standing in plumbing pipes for at least

 6 hours and

which

 is collected without flushing the tap.

“Large system” means

 a water system that regularly serves

water to more than 50,000 persons.

“Lead service line”, means

 a service

 line made of lead that

connects the water main to the building inlet,

 including any

lead pigtail,

 gooseneck,

 or other fitting that is connected

to such lead line.

“Maximum permissible concentration” or

“MPC” means that

concentration

lead

copper

for

finished

water

entering

the supplier’s distribution system, designated by the Agnecy

by

 a SEP pursuant to Sections

611.110

and

611.353(b)

that

reflects the contaminant removal capability of the treatment

properly operated and maintained.

BOARD NOTE:

 Derived from 40 CFR

 141.83(b)(4)

 (1992-4)

(Section 611.353(b) (4) (B)).

“Medium—sized system” means

 a water system that regularly

serves water to more than 3,300 up to

50,000

or fewer

persons.

“Meet”,

 as this term

 is applied to either the lead or the

copper action level, means that the 90th percentile level of

the supplier’s samples collected during

 a six—month

monitoring period is less than or equal to

the action level

for that

contaminant.

“Method

detection limit”

 or “MDL”

is

 as defined at Section

611.646(a).

The

MDL

for

lead

0.001

mg/L.

The

MDL

for

copper

 is 0.001 mg/L,

 or 0.020 mg/L

by atomic

absorption

71

direct aspiration method.

BOARD

NOTE:

Derived

from

 40 CFR 141.69(a)(1)(iii)

 (1992-4).

“Monitoring period” means any of the six—month periods of

 time during which a supplier must complete

 a cycle of

monitoring under this Subpart.

BOARD NOTE:

 USEPA refers to these as “monitoring periods”.

The Board uses

 “six—month monitoring period” to avoid

confusion with “compliance period”,

as

 used elsewhere

in

this

Part and defined at Section 611.101.

“Multiple—family

residence” means

a

building that is

currently

used

multiple-family

residence,

but

not

one

that

 is also a “single—family

 structure”.

“90th percentile level” means

 that concentration of lead or

copper contaminant exceeded by

 10 percent or

 fewer of all

samples collected during

 a aix—month monitoring period

pursuant to Section 611.356

 (i.e., that concentration of

contaminant greater than or equal to the results obtained

from 90 percent of the samples).

The

 90th percentile levels

for

copper

and

lead

shall

 be determined pursuant to

subsection

 (c)(3)

 below.

BOARD NOTE:

 Derived from

CFR

141.80(c)

(1992-4).

“Optimal corrosion control treatment” means the corrosion

control treatment that minimizes the lead and copper

 concentrations

 at users’

 taps while ensuring that the

treatment does not cause the water system to violate any

national primary drinking water regulations.

“Practical quantitation limit” or

 “PQL” means the lowest

concentration of a contaminant that

 a well—operated

laboratory can reliably achieve within specified limits of

precision and accuracy during routine laboratory operating

conditions.

 The PQL for lead is 0.005 mg/L.

 The PQL for

copper

is 0.050 mg/L.

BOARD NOTE:

 Derived from 40 CFR 141.89(a~(fl(ii) and

(a)(1)(iv)

 (1992-4)

 and 56 Fed.

 Reg.

 26511—12

 (June

7,

 1991)

-(preamble).

 USEN~has generally defined the ~QL as

 5 to—10

ti-moo

 the- method--detection limit.

“Service line sample” means a one—liter sample of water,

collected

 in accordance with Section 611.356(b) (3), that has

been standing for at least

 6 hours in a service

 line.

“Single—family structure” means

 a building that was

constructed as

 a single—family residence and which is

currently used as either a residence or a place of business.

“Small system” means

 a water system that regularly serves

water to 3,300 or fewer persons.

BOARD

NOTE:

 Derived from 40 CFR 141.2

 (1992-4).

C)

 Lead and

Copper Action Levels:

1)

 The lead action level is exceeded if the 90th percentile

lead level

is

greater than 0.015 mg/L.

2)

The

copper action

 level is exceeded

if

 the 90th percentile

copper

level

greater

than

1.3

mg/L.

72

Suppliers

shall

compute

the

90th

percentile

lead

and

 copper

levels

as

 follows:

A)

 List the results of

 all lead or copper samples taken

during a six—month monitoring period in ascending

order,

 ranging from the sample with the lowest

concentration first to the sample with the highest

concentration last.

 Assign each sampling result

a

number,

 ascending by single integers beginning with

the number

 1 for the sample with the lowest

contaminant level.

 The number assigned to the sample

with the highest contaminant level shall be equal to

the

total

number

 of samples taken.

B)

 Determine the number for the 90th percentile sample by

multiplying

the

total

number

samples

taken

during

the

six—month

monitoring

period

0.9.

C)

 The contaminant concentration

 in the sample with the

number yielded by the calculation in subsection

(c)(3)(B)

 above

 is the 90th percentile contaminant

level.

D)

 For suppliers that collect

 5 samples per six—month

monitoring period,

 the 90th percentile

is

 computed by

taking the average of the highest and

 second highest

concentrations.

d)

 Corrosion Control Treatment Requirements:

1)

 All suppliers

 shall

 install and operate optimal corrosion

control treatment.

2)

 Any supplier that complies with the applicable corrosion

control treatment requirements

 specified by the Agency

pursuant to Sections 611.351 and 611.352 is deemed

in

compliance with the treatment requirement of subsection

(d)(1)

 above.

Source

water

treatment

requirements.

 Any supplier whose system

exceeds the lead or copper action level

 shall implement all

applicable source water treatment requirements specified by the

Agency pursuant to Section 611.353.

f)

 Lead service

 line replacement requirements.

 Any supplier whose

system

exceeds

the

lead

 action level after implementation of

applicable corrosion control and source water treatment

requirements

 shall complete the lead service line replacement

requirements contained

 in Section 611.354.

Public

education

requirements.

Any

 supplier whose system exceeds

the lead action level shall implement

 the public education

requirements contained

 in Section 611.355.

h)

 Monitoring and analytical requirements.

 Suppliers shall complete

all tap water monitoring for lead and

 copper, monitoring for water

quality

parameters,

 source water monitoring for lead and copper,

and analyses of the monitoring results under this Subpart

in

compliance with Sections 611.356,

611.357, 611.358, and 611.359.

i)

 Reporting requirements.

 Suppliers shall report to the Agency any

information required by the treatment provisions of this Subpart

73

and Section 611.360.

 Recordkeeping requirements.

 Suppliers shall maintain records

in

accordance

with

Section

611.361.

Violation

national

primary

drinking

water

regulations.

Failure

to comply with the applicable requirements of this Subpart,

including conditions imposed by the Agency by special exception

 permit (SEP) pursuant to these provisions,

 shall constitute a

violation of the national primary drinking water regulations for

lead or copper.

BOARD

NOTE:

 Derived from 40 CFR 141.80

 (1992-4).

(Source:

 Amended

at

19

 111.

 Reg.

________

 effective

_____________________)

Section 611.351

 Applicability of Corrosion Control

a)

 Corrosion control required.

 Suppliers shall complete the

applicable corrosion control

 treatment requirements described

in

Section 611.352 on or before the deadlines set

 forth in this

Section.

1)

 Large systems.

 Each large system supplier

 (one regularly

serving more than 50,000 persons)

 shall complete the

corrosion control treatment steps specified in subsection

(d)

 below,

 unless it

 is deemed to have optimized corrosion

control

under

subsection

(b)(2)

(b)(3)

below.

Medium—sized

and

small

systems.

Each

small

system

supplier

(one

regularly

serving 3300 or

 fewer persons)

 and each

medium—sized system (one regularly serving more than 3,300

up to 50,000 or fewer persons)

 shall complete the corrosion

control treatment steps specified in subsection

 (e) below,

unless it

 is deemed to have optimized corrosion control

under one of subsections

 (b)(1),

 (b)(2), or (b)(3) below.

b)

 Suppliers deemed to have optimized corrosion control.

 A supplier

is deemed to have optimized corrosion control, and is

 not required

to complete the applicable corrosion control treatment steps

identified

this

Section,

the

supplier

satisfies

one

the

following criteria:

1)

 Small or medium—sized system meeting action levels.

 A small

system

medium—sized

system

supplier

deemed

have

optimized corrosion control

 if the

system

meets

the

lead

and

copper action levels during each of two consecutive six—

month monitoring periods with monitoring conducted in

accordance with Section 611.356.

2)

SEP

 for equivalent activities to corrosion control.

The

Agency shall,

by

 a SEP granted pursuant to Section 611.110,

deem any supplier to have optimized corrosion control

treatment if it determines that the supplier has conducted

activities equivalent to

the corrosion control

steps

applicable

under this Section.

 In making this

determination,

 the Agency shall specify the water quality

control parameters representing optimal corrosion control

in

accordance with Section 611.352(f).

 A supplier shall

provide the Agency with the following information

 in order

to support

 an Agency SEP determination under this

subsection:

74

A)

 the results of all test samples collected for each of

the water quality parameters

 in Section 611.352(c) (3);

B)

 a report explaining the test methods the supplier used

to evaluate the corrosion control treatments listed

in

Section 611.352(c) (1),

 the results of all tests

conducted,

 and the basis for the supplier’s selection

of optimal corrosion control treatment;

C)

 a report explaining how the

 supplier

has installed

corrosion

control

and

how

the

supplier

maintains

to

insure minimal

 lead and copper concentrations

at

consumers’

taps;

and

the

results

tap

water

samples

collected

accordance

with

Section

611.356

 at least once every

six months for one year after corrosion control has

been installed.

3)

 Results less than practical quantitation level

 for lead.

Any supplier

 is deemed to have optimized corrosion control

if it

 submits results of tap water monitoring conducted in

accordance with Section

611.356

and

source

water

monitoring

conducted

 in accordance with Section 611.358 that

demonstrate

that

for

two

consecutive

six—month

monitoring

periods

the

difference

between

the

90th

 percentile tap water

lead

level,

computed

pursuant

Section

611.350(c)

(3),

and

the

highest

source

water

lead

concentration

less

than

the

practical quantitation level

for

 lead specified in Section

611.359(a) (1) (B)

(L).

c)

 Suppliers not required to complete corrosion control steps for

having

met

both

action

levels.

Any

small

system

medium—sized

system

supplier,

 otherwise

required to complete the corrosion control steps due to its

exceedance of the

 lead or copper action level,

 may cease

completing

the

treatment

 steps after the supplier has

fulfilled

both

 of the following conditions:

A)

 It has met both the copper action level and the lead

action level during each of two consecutive six—month

monitoring periods conducted pursuant to Section

611.356,

and

the

supplier

has

submitted

 the results for those two

consecutive six—month monitoring periods to the

Agency.

2)

 A supplier that has ceased completing the corrosion control

steps pursuant to subsection

 (c)(1) above

 (or the Agency,

if

appropriate)

 shall resume completion of the applicable

treatment steps, beginning with the first treatment step

that the supplier previously did not complete in its

entirety,

 if the supplier thereafter exceeds the lead or

copper action level during any monitoring period.

3).

 The Agency may,

 by SEP, require a supplier to repeat

treatment

 steps previously completed by the supplier where

it determines that this

 is necessary to properly implement

the treatment requirements of this Section.

 Any such SEP

shall

explain

the

basis

for

this

decision.

75

4.).

 The requirement for any small or medium—sized system

supplier

implement

corrosion

control

treatment

steps

in

accordance with subsection

fe)

 below (including systems

deemed to have optimized corrosion control under subsection

(b)(l)

 above)

 triggered

whenever

any

small

 medium—

sized system supplier

exceeds

the

lead

copper

action

level.

d)

 Treatment

 steps and deadlines for large systems.

 Except as

provided in subsections

 (b)(2)

and

 (b)(3)

 above,

 large system

suppliers shall complete the following corrosion control treatment

steps

 (described

 in the referenced portions of Sections 611.352,

611.356, and 611.357) on or before the indicated dates.

1)

 Step

1:

 The supplier shall conduct initial monitoring

(Sections 611.356(d) (1) and 611.357(b))

 during two

consecutive six—month monitoring periods on or before

January

1,

 1993.

BOARD NOTE:

 U~S.~EPAspecified January

1,

1993

 at 40 CFR

l41.81(d)(l).

 In order to remain identical-in-substance and

retain

state

primacy,

the

Board

retained

this

date

despite

the

fact

that

this

Section

 became effective after

that date.

2)

 Step

2:

 The supplier shall complete corrosion control

studies

 (Section 611.352(c))

 on or before July

1,

 1994.

3)

 Step

3:

 The Agency shall approve optimal corrosion control

treatment

(Section

611.352(d))

SEP

issued

pursuant

Section

611.110

before

January

 1995.

4)

 Step 4:

 The supplier shall install optimal corrosion

control treatment

 (Section 611.352(e))

 by January

1,

 1997.

5)

 Step

5:

 The supplier shall complete follow—up sampling

(Sections 611.356(d) (2) and 611.357(c))

 by January

1,

 1998.

6)

 Step

6:

 The Agency shall review installation

 of treatment

and approve optimal water quality control parameters

(Section 611.352(1))

 by July

1,

 1998,

7)

 Step

7:

The

supplier

shall

operate

compliance

with

the

Agency—specified optimal water quality control parameters

(Section 611.352(g))

 and continue to conduct tap sampling

(Sections 611.356(d) (3)

 and 611.357(d)).

e)

 Treatment steps and deadlines for small and medium—sized system

suppliers.

 Except as provided

 in subsection

(b)

 above,

 small and

medium—sized system suppliers shall complete the following

corrosion control treatment

 steps

 (described in the referenced

portions of Sections 611.352,

 611.356 and 611.357)

 by the

indicated time periods.

1)

 Step

1:

 The supplier shall conduct initial tap sampling

(Sections 6l1.356(d)(1) and

611.357(b))

 until the supplier

either exceeds the lead action level or the copper

action

level or

 it becomes eligible for reduced monitoring under

Section 611.356(d)(4).

 A supplier exceeding the

 lead action

level or the copper action level shall recommend optimal

corrosion control treatment (Section 611.352 (a)) within six

months after it exceeds one of the action levels.

76

2)

 Step

2:

 Within

 12 months after

 a supplier exceeds the lead

action

 level or the copper action

 level, the Agency may

require the supplier to perform corrosion control studies

(Section 611.352(b)).

 If the Agency does

 not require the

supplier to perform such studies,

 the Agency shall,

by

 a SEP

issued pursuant to Section 611.110,

 specify optimal

corrosion control treatment

 (Section 611.352(d)) within the

following timeframes:

A)

 for medium—sized systems, within 18 months after such

supplier exceeds the lead action level or the copper

action level,

for

small

systems,

within

 24 months after such

supplier exceeds the lead action level or the copper

action level.

3)

 Step

3:

 If the Agency requires

 a supplier to perform

corrosion control

 studies under step

(subsection

(e)(2)

above),

 the supplier shall complete the studies

 (Section

611.352(c))

within

months

after

the

Agency

requires

that

such studies be conducted.

4)

 Step

4:

 If the supplier has performed corrosion control

studies under step

2

 (subsection

 (e)(2)

 above),

 the Agency

shall,

by

 a SEP issued pursuant to Section 611.110, approve

optimal corrosion control treatment

 (Section 611.352(d))

within 6 months after completion of

 step 3

 (subsection

(e)(3)

 above).

5)

 Step

5:

The

 supplier shall

 install optimal corrosion

control

 treatment

 (Section 611.352(e))

 within 24 months

after the Agency approves such treatment.

6)

 Step

6:

 The supplier shall complete follow—up sampling

(Sections 6l1.356(d)(2) and 611.357(c))

 within 36 months

after the Agency approves optimal corrosion control

treatment.

7)

 Step 7:

 The Agency shall review the supplier’s installation

of treatment and, by

 a SEP issued pursuant to Section

611.110,

 approve optimal water quality control parameters

(Section 611.352(f)) within

 6 months after completion of

step 6

 (subsection

 (e)(6)

 above).

8)

 Step

The

supplier

shall

operate

 in compliance with the

Agency-approved optimal water quality control parameters

(Section 611.352(g)) and continue to conduct tap sampling

(Sections 611.356(d)(3) and 611.357(d)).

BOARD NOTE:

 Derived from 40 CFR 141.81

 (1992-4).

(Source:

 Amended at

19

 Ill. Reg.

________,

 effective

_____________________

Section 611.354

 Lead Service Line Replacement

a)

 Suppliers required to replace lead service

 lines.

1)

 If the results from tap samples taken pursuant to Section

611.356(d)(2) exceed the lead action level after

the

supplier has installed

corrosion control or source water

treatment

 (whichever sampling occurs later), the supplier

77

shall recommence replacing lead service lines in accordance

with the requirements of subsection

(b)

 below.

2)

If

 a supplier is

 in violation of Section 611.351 or Section

611.353

 for failure to

 install source water or corrosion

control treatment,

 the Agency may,

by

 a SEP

 issued pursuant

to Section 611.110, require the supplier to commence lead

service line replacement under this Section after the date

by which the supplier was required to conduct monitoring

under Section 611.356(d) (2) has passed.

b)

 Annual replacement of lead service lines.

1)

 A supplier required to commence

 lead service line

replacement pursuant to subsection

(a)

 above shall annually

replace at

 least

 7 percent of the

 initial number of lead

service lines

 in its distribution system.

2)

 The initial number of lead service lines

 is the number of

lead lines

 in place

 at the time the replacement program

begins.

3)

The

supplier shall identify the initial number of lead

service lines

in

 its distribution system based on

a

materials evaluation,

 including the evaluation required

under Section 611.356(a).

4)

The

 first year of

 lead service

 line replacement

 shall begin

on the date the supplier exceeded the action level in tap

sampling referenced

 in subsection

(a)

 above.

c)

 Service lines not needing replacement.

 A supplier is not required

to replace

 any individual

 lead service line for which the lead

concentrations

 in all service

 line samples taken from that line

pursuant to Section 611.356(b) (3) are less than or equal to 0.015

mg/L.

d)

 Replacement of service line.

1)

 A supplier required to replace

a

 lead service

 line pursuant

to subsection

(a)

 above shall replace the entire service

line (up to the building inlet) unless the Agency determines

pursuant to subsection

 (e) below that the supplier controls

less than the entire service

 line.

2)

 Replacement

 of less than the entire service

 line.

A)

 Where the Agency has determined that the supplier

controls less than the entire service line,

the

supplier shall replace that portion of the line that

the Agency determines

 is under the supplier’s control.

B)

 The supplier that will replace less than the entire

service line shall notify the user served by the line

that

the

supplier

will

replace

that

portion

the

service line under its control, and the supplier shall

offer to replace the remaining portion of the service

line that

is under the building owner’s control.

C)

 The supplier required to replace

 less than the entire

service line is not required to bear the cost of

replacing any portion of the service line that

is

78

under the building owner’s control.

D)

 Offer to collect samples.

i)

 For buildings where only a portion of the lead

service line

 is replaced,

 the supplier shall

inform the resident(s)

 that the supplier will

collect

 a first draw tap water sample after

partial replacement of the service

 line is

completed

 if the resident(s)

 so desire.

Li)

 In cases where the resident(s)

 accept the offer,

the

supplier

shall

collect

the

sample

and

report

the results to the resident(s) within 14 days

following partial

 lead service line replacement.

e)

 Control of entire service

 line.

1)

 A supplier

 is presumed to control the entire

 lead service

line

(up

 the building

 inlet) unless the supplier

demonstrates to the satisfaction of the Agency,

in

 a letter

submitted under Section 611.360(e) (4),

 that

 it does not have

any of the

 following forms of control over the entire line

(as defined by state statutes, municipal ordinances, public

service contracts or other applicable legal authority):

authority

set

standards

for

construction,

repair,

or maintenance of the line;

B)

 authority to replace,

 repair,

 or maintain the service

line;

or

C)

 ownership of the service

 line.

2)

 Agency determinations.

The

Agency

shall

review

the

information

provided

the supplier and determine the

 following:

i)

 whether the supplier controls less than the

entire service line,

and

ii)

 where the supplier controls

 less than the entire

service line,

 the Agency shall determine the

extent of the supplier’s control.

B)

 The Agency shall make its determination of the extent

supplier’s

control

service

line

SEP

pursuant

Section

611.110,

and

the

Agency

shall

explain

the

basis

for

its

determination.

BOARD NOTE:

 See Section 611.360(e)(4)

 and the Board

Note that follows.

The

court

 in American Water Works

Association v.

EPA,

F.3d

1266

(D.C.

Cir.

1994~,

vacated U.S. EPA’s definition of

 ‘control”

 to the

extent

 it would require the supplier to exert

“control” over

 a privately—owned service

 connection.

The

Board

does

not

intend

that

the

Illinois

 definition

give the state regulations more effect than the

federal definition gives the U.S. EPA regulations.

f)

 Agency determination of shorter replacement schedule.

79

1)

 The Agency shall, by a SEP issued pursuant to Section

611.110, require a supplier to replace

 lead service

 lines on

a shorter schedule than that otherwise required by this

Section

if

 it determines,

 taking into account

 the number of

lead service lines

 in the system, that such

 a shorter

replacement

schedule

feasible.

The

Agency

shall

notify

the

supplier

its

finding

pursuant

subsection

(f)(1)

above

within

months

after

the

supplier

 is triggered into lead service line replacement

based on monitoring,

 as referenced in subsection

(a)

 above.

g)

Cessation

service

line

replacement.

1)

 Any supplier may cease replacing lead service lines whenever

it

 fulfills both of the following conditions:

A)

 first draw tap samples collected pursuant to Section

611.356(b) (2)

 meet the

 lead action level during each

of two consecutive six—month monitoring periods and

the

supplier

has

submitted

those

results

the

Agency.

2)

 If any of

 the supplier’s first draw tap samples thereafter

exceed

the

lead

action

level,

 the supplier shall recommence

replacing lead service lines pursuant to subsection

(b)

above.

h)

 To demonstrate compliance with subsections

 (a) through

(d)

 above,

a supplier shall

 report to the Agency the information specified

in

Section 611.360(e).

BOARD NOTE:

 Derived

 from 40 CFR 141.84

 (1992-4).

(Source:

 Amended at

19

 Ill.

 Reg.

________,

 effective

______________________

Section

611.357

 Monitoring

for

Water

Quality

Parameters

All large system suppliers,

and

 all small

 and medium—sized system suppliers

that

exceed

the

lead

action

 level or the copper action level, shall monitor

water quality parameters

 in addition to lead and copper in accordance with

this

Section.

The

requirements

this

Section

are

summarized

Section

 611.Table G.

a~

 General Requirements

1)

 Sample

collection methods

Use

tap

samples.

The

totality

all

tap

 samples

collected by a supplier shall be representative

of

water quality throughout the distribution system

taking into account the number of persons

 served,

the

different sources of water, the different~treatment

methods employed by the supplier,

 and seasonal

variability.

 Although a supplier may conveniently

conduct

tap

sampling

for

water

quality

parameters

sites used for coliform sampling performed pursuant to

Subpart

this

Part,

 is not required to do so,

and

 a supplier

 is not required

to

perform tap sampling

pursuant to this Section at taps targeted

 for lead and

copper

sampling

under

Section

611.356(a).

80

B)

 Use of entry point samples.

 Each supplier shall

collect samples at entry point(s)

 to the distribution

system

 from locations representative of each source

after treatment.

If

 a supplier draws water

 from more

than

one

source

and

the

sources

are

combined

before

distribution,

 the supplier must sample at an entry

point to the distribution system during periods of

normal operating conditions

 (i.e., when water is

representative of all sources being used).

2)

 Number of samples

A)

 Tap samples.

 Each supplier shall collect two tap

samples for applicable water quality parameters during

each six—month monitoring period specified under

subsections

 (b) through

 (e) below from the number

of

sites indicated in the

 first column of Section

6l1.Table S.

B)

 Entry point

 samples.

i)

 Initial

 monitoring.

 Each supplier

 shall

 collect

two samples

 for each applicable water quality

parameter at each entry point to the

distribution system during each six—month

monitoring period specified

 in subsection

(b)

below.

ii)

 Subsequent monitoring.

 Each supplier shall

collect one sample

 for each applicable water

quality parameter at each entry point to the

distribution

system

during

each

six—month

monitoring period specified

 in subsections

(C)

through

(e)

 below.

b)

 Initial Sampling.

1)

 Large systems.

 Each large system supplier shall measure the

applicable water quality parameters specified in subsection

(b)(3) below at taps and at each entry point to the

distribution system during each six-month monitoring period

specified in Section 611.356(d)(1).

Small

and

 medium—sized systems.

 Each small

 and medium—sized

system supplier shall measure the applicable water quality

parameters specified in subsection

 (b)(3)

 below at the

locations specified in this subsection during each six—month

monitoring period specified in Section 611.356(d)(1) during

which the supplier exceeds the lead action level or the

copper action level.

3)

 Water quality parameters:

A)

pH;

B)

 alkalinity;

orthophosphate,

when

inhibitor

containing

phosphate compound

is

 used;

D)

 silica, when an inhibitor containing a silicate

compound

 is used;

81

E)

 calcium;

F)

 conductivity;

and

G)

 water temperature.

 Monitoring after installation of corrosion control.

1)

 Large systems.

 Each large system supplier that installs

optimal corrosion control treatment pursuant to Section

6l1.351(d)(4)

 shall measure the water quality parameters

at

the locations and frequencies specified

 in subsections

(c)(3) and (c)(4)

 below during each six-month monitoring

period specified

 in Section 611.356(d)(2)(i).

2)

 Small and medium-sized systems.

 Each small, or medium-sized

system that installs optimal corrosion control treatment

pursuant to Section

 61l.351(e)(S)

 shall measure the water

quality parameters at

 the locations and frequencies

specified

 in subsections

 (c)(3) and

 (c)(4) below during each

six-month monitoring period specified in Section

611.356(d)(2)(ii)

 in which the supplier exceeds

 the lead

action level or the copper action level.

3)

 Tap water samples,

 two samples at each tap for each of the

following water quality parameters:

A)

pH;

B)

 alkalinity;

C)

 orthophosphate,

 when an inhibitor containing

a

phosphate compound

 is used;

D)

 silica, when an inhibitor containing

 a silicate

compound

 is used;

and

E)

 calcium, when calcium carbonate stabilization

 is used

as part of corrosion control.

4)

 Entry point samples, one sample at each entry point to the

distribution system every two weeks

 (bi-weekly)

 for each of

the following water quality parameters:

A)

pa;

B)

 when alkalinity

 is adjusted as part of optimal

corrosion control,

 a reading of the dosage rate of the

chemical used to adjust alkalinity, and the alkalinity

concentration;

and

C)

 when

 a corrosion inhibitor

 is used as part of optimal

corrosion control,

 a reading of the dosage rate of the

inhibitor used,

 and the concentration of

orthophosphate

 or silica

 (whichever is applicable).

d)

 Monitoring after

 the Agency specifies water quality parameter

values

 for optimal corrosion control.

1)

 Large systems.

 After the Agency has specified the values

for applicable water quality control parameters reflecting

optimal corrosion control treatment pursuant to Section

82

611.352(f),

 each large system supplier shall measure the

applicable water quality parameters

 in accordance with

subsection

(C)

 above during each six—month monitoring period

specified in Section 61l.356(d)(3).

2)

 Small and medium—sized systems.

 Each small or medium—sized

system supplier shall conduct such monitoring during each

six-month monitoring period specified in Section

61l.356(d)(3)

 in which the supplier exceeds the lead action

level or the copper action level.

3)

 Confirmation sampling.

A)

 A supplier may take

 a confirmation sample for any

water quality parameter value no later than

 3 days

after

 it took the original sample

 it seeks to confirm.

B)

If

 a supplier takes

 a confirmation sample;

 it must

average the result obtained

 from the confirmation

sample with the result obtained from the original

sample

it

 seeks to confirm,

 and the supplier shall use

the average of these two results

 for any compliance

determinations under Section 611.352(g).

C)

 The Agency shall delete the results that

 it determines

are due to obvious sampling errors from this

calculation.

e)

 Reduced monitoring.

1)

 Reduction in tap monitoring.

 A supplier that has maintained

the range of values for the water quality parameters

reflecting optimal corrosion control treatment during each

of two consecutive six—month monitoring periods under

subsection

(d)

 above shall continue monitoring at the entry

point(s)

 to the distribution system as specified in

subsection

 (c)(4)

 above.

 Such

 a supplier may collect two

samples from each tap for applicable water quality

parameters from the reduced number of sites indicated in the

second column of Section 61l.Table

 E during each subsequent

six—month monitoring period.

2)

 Reduction

 in monitoring frequency.

A)

 Stages of reductions.

i)

 Annual monitoring.

 A supplier that maintains

the range of values for the water quality

parameters reflecting optimal corrosion control

treatment specified pursuant to Section

611.352(f) during three consecutive years of

monitoring may reduce the frequency with which

it collects the number of tap samples for

applicable water quality parameters specified

in

subsection (e)(l)

 above from every

 six months to

annually.

ii)

 Triennial monitoring.

 A supplier that maintains

the range of values for the water quality

parameters reflecting optimal corrosion control

treatment specified pursuant to Section

611.352(f)

 during three consecutive years of

83

annual monitoring under subsection

 (e) (2) (A)(i)

above may reduce the

 frequency with which

it

collects the number of

 tap samples for

applicable water quality parameters

 specified

in

subsection (e)(l) above from annually to once

 every three years.

B)

 A supplier that conducts sampling annually or every

three years shall collect these samples evenly

throughout the calendar year

 so as to reflect seasonal

variability.

C)

Any

 supplier subject to a reduced monitoring

 frequency

pursuant to this

 subsection that fails to operate

within the range of values

 for the water quality

parameters specified pursuant to Section 611.352(f)

shall resume tap water sampling

 in accordance with the

number and frequency requirements of subsection

(d)

above.

f)

 Additional monitoring

 by systems.

 The results of any monitoring

conducted

 in addition to the minimum requirements of this section

shall be considered by the supplier and the Agency in making

any

determinations

 (i.e., determining concentrations

 of water quality

parameters)

 under this Section or Section 611.352.

BOARD NOTE:

 Derived from 40 CFR 141.87 (l99~).

(Source:

 Amended at

19

 Ill.

 Reg.

 effective

_____________________

Section 611.359

 Analytical Methods

a)-

 Analyses for lead,

 copper, pH,

 conductivity, calcium,

 alkalinity,

orthophosphate,

 silica,

 and temperature shall be conducted using

the methods set forth

 in cubocotion

 (b) bclowSection 611.6111~

1)

 Analy3cs performed for

 the purpooca of compliance with this

Cubpart shall onl-y be conduc-tcd by laboratorie-s that have

been certified by USEPA or the Agency.

 To obtain

certification to conduct analyses for load and copper,-

laboratories must;

2’s)

 Analyse performance ovaluation oampleo that inoludo

lead and

 ooppor provided by USEPA Environmental

Monitoring and Cupport Laboratory or—equivalent

samples provided by the Agency;

and

B)

 Achieve quantitative acceptance

 limit-s

 -as followsi-

i)

Loath

 ±30

percent

 of the actual amount in the

performance evaluation samplo when the actual

amunt

 is greater than or equal to O.OOS

mg/L,-

~fl4

-ii.-)

 Coppor~ ~kl0percent—of the actual amount in

the

performance evaluation sample when the actual

amount

 is greater than or equal to 0.O~0mg/Lj-

d3(incd in Section 611-.3S0(a) aooordingto~the

procedures

in

35

 Ill.

Ad,n.

 Code 183 and 40 OI1~

136, Appendix

B;

 DDefinitipn and Procedure fer

~

iv)

 currently certified

by-USEPA

 or the Agenoy—~e

perform analyses to the specifications described

 subsection

 (a)(2)

 below.

SEP issued ourcuant to ~Ceoti~.on

cr

use

 co-ilectcd

purpoaeo of monitoring-under thi

e collootod and analysed

i-n

A)

Ml

 lead levels greater

 than or cqual

to--the

 lead PQL

Pb

 ~ 0.005 mg/L~must be rcportcd as measured.-

B)

All

 lcad levels- measured less than the PQL

and

 great-er

than the

~eporte-d

MDL

 (0.005 mg/L

Pb

MDL)

 must be either

 measured or

 as one

 half the

PQL

 (0.0025

/L)-.

A-Il

 load levels below the

 load

l~fDL (MDL

 Pb)- must be

Report

i-ng-

A)

All

 copper cvels

 greater than or equal to the coppc-r

r’QL

 (Cu ~ 0.05

rng/L)

 must bc-reported

 as measured.

B)

A-Il

 copper

 levclc~meaourcd ieee than the PQL

and

g-reater

than

the

MDL

(0.05

mg/L

)-

Cu

 MDL)

 must be

c-ithe~r

 reported as measured or

one

half

-the

I’QL

(-0.025

rng/-L)-.

 All copper levels below the copper MDL

 (MDL

Cu~

must

be

 repert-ed as

b

 Analytical

mcthod~

1)

 Lead

W4.~.....,..1

Z..,._._.

—.

A. ~..t...

ACTH Methods

-iji)r

c~tandard Method.

iod

D3559—85-D

Method

3113~

3

on,

 platform furn

-

-

For

 analytirtg lead and

copper,

the

technique

applicable to-total metals must be

us-ed—a-nd

 sample-s

cannot be

 filtered.

Samples

that

-contain

 ices than

1

WI~U

and whieh~are properly preserved (concentrated

niti~it~t~id

$~

nfl

~

thin

2)

may

hr~ .~n~r~i1

0

 allow a ouppli

monitoring data for the

Subpart

 if the data wer~

4-—

C-.

 Copper

directly

 (without digestion)

 for total metalst

otherwise digestion

required.

Turbidity

muet

measured on the preserved

 samples ~uot prior to when

metal analycic

 is initiated.

 When diogootion

io

required,

 the “total recoverable”

 technique-,- a-a

defined

 in the method,

 must be used.

iii)

 Etandard Methodo

~ption, di-~

Inorganic

Mcthod—3l13~

aspiration:

bode.

 Method

 220.1,

ii)

 A&TU

Methods:

Method

D168S

90A,

or

iii)

Ctan-dard

 Methodot

 Method 3111—Br

C)

 Inductively-coupled plasma:

 Mcthr~

~“~‘

~‘-,-

“—~~

3.2

~.)

n.e-on

D)

 Inductivc-l-y--~

Method

200.8,

LiC

al

Platform

Cubscct

i

copper.

3)

pH

A.)-

B.)-

4)

Cci

A)

B)

C)

UGEPA Inorganic Methods

 Method- 120.1,

—

1)

ii)

 ~eanu~irunctnoas:

 nczhod

3l..u-~

.—._~

..1

~orption;

 platform furnace techniquci

n.it—

vurnapc Method 200.9.

 (b)(1)(D) above applice to analyn~o

for

UCEPA

e—.

i-c

 Methods,

 Method

 150-.l

—

~.1

A)

 EDTJ\ titr-imotriei

86

ii)

ACTM

~ethods:

Method

D511—8-8A,

or

iii)

 Standard Methods.

 Method -500—Ca D-

—-C--

4-)-

ii)

ASTH

Methods:

iii)

 Standard Methods

0)

 Inductively coupled ~

I(_t-’

l-.c~r

ii)

 Standard Methods:

 Method 3120.

A)

 Titrimetrip:

ii)

ACTH

Methods:

Method

D1067

-88-B-i

-or

iii~

Standard

Methods.

Method

2320-,

1030 85.

Orthophoopha

4..

~4-..—.4-

1’_

A)

 Unfiltered,

 no digestion or hydrolysis:

 USEPA

Inorganio

Methods.

Method

365.1;

B)

 Colorimetric,

 automated,

 ascorbic acid.

 Ctandard

D515- 0-BA-i-

tomat

ed-

i)

 Ion Chromatography Method

 .300.-O,

ii)

AETH

Methods,

 Method 04327-88,

iii)

 Standard Methods:

 Method 4110.

.......,u....

 Method

a1~

:hod DSll—BSB,

o-r

_IJ~4-

I..-,4~

_‘~1

‘-,

 i-tev

 .,j.2,

c~r

C)

Colon

 big acid,

 two rcagcnt-~

ii)

 Standard Methodo.

 Method

 45-00-—P

0)

 Calorimetric,

 ascorbic acid,

 singlc rc~

E)

 Calorimetric, phoophomo1ybd~ate

flow or automated discrete:

U

r......

B)

 Silica.

Colorimotric, molybdate blue, automated

flow;

 USCS Methods.

 Methods I—l-700—SS or I—2’700-85p

.mctnic~

YI~1~.

I’

 Hethodo.

 Moth

Method 0859 88

C)

 Molybdooilioatei

 Standard Hethodo.

 Method 4B00—si-D~-

0)

 Ileteropoly blue,

 Standard Methods.

 Method 4500-Si-E

i)

 ICP Method 200.7,

 Rev.

3

.2,

or

-ii)

Standard

Methods.

Method

3120.

Temperature:

 Thermometric:

 Standard Methods.

Method

25-50.

BOARD NOTE:

 Derived from 40 CFR 141.89 (l99~), as amended

at 5~ Fed.

 Req. 3184762470

(July

 17, l992December

5.

 1994).

(Source:

 Amended at

19

 Ill.

 Req.

________,

 effective

_____________________

Section 611.360

 Reporting

A supplier shall report

 all of the following information to the Agency in

accordance with this Section.

a)

 Reporting

 for tap,

 lead and copper,

 and water quality parameter

monitoring.

1)

 A supplier shall report the following information for all

samples within 10 days of the end of each applicable

sampling period specified

 in Sections 611.356 through

611.358

 (i.e., every six—months,

 annually, every

 3 years,

or

every

nine

years).

the

results

all

tap

samples

for

lead

and

copper,

including

the

location

each

site

and

the

criteria

under Section 611.356(a) (3)

 through

(7)

 under which

the site was selected for the supplier’s eampling

pool;

B)

 a certification that each first—draw sample collected

the

supplier

was

one-liter

volume

and,

the

best of the supplier’s knowledge,

 had stood motionless

the

service

line,

the

interior

plumbing

sampling site,

 for at least aix hours;

where

residents

collected

samples,

certification

that

each

tap

sample

collected

the

residents

was

taken after the supplier

 informed them of the proper

sampling procedures specified

 in Section

611.356(b) (2);

the

90th

percentile

lead

and

copper

concentrations

measured

from

among

all

lead

and

copper

tap

samples

collected

during

each

sampling

period

(calculated

accordance

with

Section

611.350(c)

(3));

5)

 with

 the exception of initial tap sampling conducted

pursuant to Section 61l.356(d)(1), the supplier shall

designate any site that was not 8ampled during

previous sampling periods,

and

 include an explanation

of why sampling sites have changed;

F)

 the results of all tap eamples

 for pH,

 and where

applicable,

 alkalinity, calcium,

 conductivity,

temperature,

 and orthophosphate or silica collected

pursuant to Section 611.357(b)

 through

 (e);

G)

 the results of

 all samples collected at entry point(s)

for applicable water quality parameters pursuant to

Section 611.357(b) through

 (a).

2)

 By the applicable date

 in Section 611.356(d)(1)

for

commencement

 of monitoring, each CWS supplier that does not

complete its targeted sampling pool with CWS tier 1 sampling

sites meeting the requirements of Section 611.356(a) (4) (A)

shall

 send

 a letter to the Agency justifying

 its selection

of CWS tier

 2 sampling sites or

 CWS tier

 3 sampling sites

pursuant to Section 611.356

 (a)(4)(A)(ii),

 (a)(4)(A)(iii),

or

 (a) (4) (A) (iv).

3)

 By the applicable date in Section 611.356(d)(l)

for

commencement of monitoring,

 each NTNCWS supplier that does

not complete its sampling pool with NTNCWS tier

 I sampling

sites meeting the requirements of Section

 611.356(a) (4) (B)

shall send

 a letter to the Agency justifying

 its selection

of alternative NTNCWS sampling sites pursuant to that

Section.

4)

 By the applicable date in Section 611.356(d)(1)

for

commencement of monitoring,

 each supplier with lead service

lines that

 is not able to locate the number of sites served

by such lines required by Section 6l1.356(a)(4)(D)

 shall.

send a letter to the Agency demonstrating why

 it was

 unable

to locate

 a sufficient number of such sites based upon the

information listed

 in Section 611.356(a) (2).

5)

 Each supplier that requests that the Agency grant

 a SEP that

reduces the number and frequency of sampling shall provide

the information required by Section 6ll.356(d)(4).

b)

 Reporting for source water monitoring.

1)

 A supplier shall report the sampling results

 for all source

water samples collected in accordance with Section 611.358

within 10 days of the end of each source water sampling

period

 (i.e.,

 annually, per compliance period,

per

compliance

cycle)

specified

Section

611.358.

2)

 With the exception of the first round of source water

sampling conducted pursuant to Section 611.358(b),

a

supplier

shall

 specify

any

 site that was not sampled during

previous sampling periods,

 and include an explanation of why

the sampling point has changed.

89

e)

 Reporting for corrosion control treatment.

the

applicable

dates

under

Section

 611.351,

 a supplier shall

report the following information:

1)

for

 a supplier demonstrating that it has already optimized

corrosion control,

 the information required by Section

611.352(b)(2)

or

 (b)(3).

2)

 for a supplier required to optimize corrosion control,

its

recommendation

regarding

optimal

 corrosion control treatment

pursuant

Section

611.352(a).

3)

 for a supplier required to evaluate

 the effectiveness

of

corrosion control treatments pursuant to Section 611.352(c),

the information required by Section 611.352(c).

4)

 for a supplier required to install optimal corrosion control

approved by the Agency pursuant

 to Section 611.352(d),

a

copy

 of the agency permit

 letter, which acts as

certification

that

the

supplier

 has completed installing the

permitted

treatment.

d)

 Reporting for source water treatment.

 On or before the applicable

dates

Section

611.353,

supplier

shall

provide

the

following

information to the Agency:

1)

 if required by Section 611.353(b) (1),

 its recommendation

regarding source water treatment;

or

2)

 for suppliers required to install source water treatment

pursuant to Section

 611.353(b) (2),

 a copy of the Agency

permit letter,

 which acts as certification that the supplier

has completed installing the treatment approved by the

 Agency within 24 months

 after the Agency approved the

treatment.

0)

 Reporting for lead service line replacement.

 A supplier shall

report the

 following information to the Agency to demonstrate

compliance with the requirements of Section 611.354:

1)

 Within

 12 months after

 a supplier exceeds the lead action

level in sampling referred to in Section 611.354(a),

the

supplier shall report each of the following to the Agency in

writing:

A)

 a demonstration that

 it has conducted a materials

evaluation,

 including the evaluation required by

Section 611.356(a),

8)

 identify the initial number of lead service lines in

its distribution system,

and

C)

 provide the Agency with the supplier’s schedule

for

annually replacing at least

 7 percent of the initial

number of lead service lines

 in its distribution

system.

2)

 Within

 12 months after

 a supplier exceeds the lead action

level

 in sampling referred to

 in Section 611.354(a),

and

every 12

 months thereafter,

 the supplier shall demonstrate

to the Agency

 in writing that the supplier has either:

replaced

the

months

least

percent

the

initial

number

lead

service

lines

its

distribution

system

(or

any

greater

number

lines

specified

the

Agency

pursuant

Section

611.354(f)),

B)

 conducted sampling that demonstrates that the lead

concentration

 in all

 service line samples from an

individual

line(s),

taken

pursuant

 Section

611.356(b) (3),

 is less than or equal to 0.015 mg/L.

C)

 Where the supplier makes

 a demonstration under

subsection

 (e)(2)(B)

 above,

 the total number of

 lines

that the supplier has replaced,

 combined with the

total number that meet the criteria of Section

611.354(b),

 shall equal

at

 least

 7 percent

 of the

initial number of

 lead lines identified pursuant

to

subsection

(a)

 above

 (or the percentage specified by

the Agency pursuant

 to Section 611.354(f)).

3)

 The annual

 letter submitted to the Agency pursuant to

subsection

 (e)(2) above shall contain the following

informat ion:

A)

 the number of

 lead service lines originally scheduled

to be replaced during the previous year of the

supplier’s replacement

 schedule;

B)

 the number and location of each lead service line

actually replaced during the previous year of the

supplier’s

replacement

schedule;

and

C)

 if measured,

 the water lead concentration from each

lead service line sampled pursuant to Section

611.356(b) (3)

and

 the location of each

 lead service

line sampled,

the

 sampling method used,

 and the date

of sampling.

4)

 As soon as practicable,

but

 no later than three months after

a supplier exceeds the lead action level in the sampling

referred to

 in Section 611.354(a),

 any supplier seeking to

rebut the presumption that

 it has control over the entire

lead service line pursuant to Section 611.354(d)

 shall

submit

 a letter to the Agency describing the following:

A)

 the legal authority

 (e.g.,

 state

 statutes, municipal

ordinances,

 public service contracts or other

applicable legal authority)

 that limits the supplier’s

control over the service

 lines; and

B)

 the extent of the supplier’s

 control over the service

lines.

BOARD NOTE:

 This communication is vital to a supplier

seeking to replace less than entire service

 lines.

Under Section 6l1.354(e)(1),

 a supplier is presumed to

control the entire service line unless it makes an

affirmative showing.

 Under Section 611.354(d)(2)(A),

a supplier is affirmatively required to replace all of

each service line except as to any particular service

line for which the Agency has made an affirmative

determination that the supplier does not control in

its

entirety.

Under

Sections

611.354(b)(1)

and

(b)(4),

 the supplier must have completed replacing

seven percent of the lead service lines within

 a year

of

 the day of

the

event

that

triggered

the

requirement.

 Section 39(a)

 of the Act allows the

Agency

90

 days to render

 its decision on any permit

request.

 Therefore,

 any supplier that desires an

Agency determination pursuant to Section 611.354(e) (2)

must submit the required infomation within the three

month time-frame of this subsection.

Reporting

for

public

education

program.

1)

 By December 31st of each calendar year,

 any supplier that

is

 subject to the public education requirements of Section

611.355

 shall submit

 a letter to the Agency demonstrating

that the supplier

 has delivered the public education

materials which meet the following requirements:

A)

 the content requirements of Section 611.355(a)

and

-

 (b),

and

B)

 the delivery requirements of Section

 611.355(c).

2)

 The information submitted pursuant to this

 subsection shall

include

 a list

of

all

 the newspapers,

 radio stations,

television

 stations,

 facilities

 and organizations to which

the supplier delivered public education materials during the

previous year.

3)

 The supplier shall submit the

 letter required by this

subsection annually for as long as it continues to exceed

the lead action level.

9)

 Reporting Qfadditional monitoring data.

 Any supplier that

collects

 sampling data in addition to that required by this

Subpart shall report the results of

 that sampling to the Agency e~

or bcforewithin the first ten days following the end of the

applicable sampling period(s)

 specified by Sections

 611.356

through 611.358 during which the samples are collected.

BOARD NOTE:

 Derived from 40 CPA 141.90 (199~~).

(Source:

 Amended at

19

 Ill. Reg.

_______,

 effective

____________________

SUBPART K:

 GENERAL MONITORING AND ANALYTICAL REQUIREMENTS

Section 611.480

 Alternative Analytical Techniques

The Agency may approve, by special exception permit,

 an alternate analytical

technique.

 The Agency shall not approve an alternate analytical technique

without the concurrence of U~S~~.EPA.The Agency shall approve an alternate

technique

 if it

 is substantially equivalent to the prescribed test

 in both

precision and accuracy as

it

 relates to the determination of compliance with

any

 Z4CL.

 The use of the alternate analytical technique must

 not decrease the

frequency of monitoring required by this Part.

BOARD NOTE:

 Derived

 from 40 CPA 141.27 (19~94).

Section 611.490

 Certified Laboratories

92

For

the

purpose

determining

compliance

with

Subparts

through

samples

will

considered

only

they

have

been

analyzed:

1)

By

 a laboratory certified pursuant to Section

 4(o)

 of the

Act;

or,

2)

By

 a laboratory certified by U~~S~EPA;or,

3)

 Measurements

for

turbidity,

free

chlorine

residual,

temperature and pH may be performed under the supervision of

a certified operator

(35

 Ill.

 Adni. Code

 603.103).

b)

 Nothing in this Part

 shall be construed to preclude the Agency or

any duly designated representative of

 the Agency

 from taking

samples or from using the results from such samples to determine

compliance by a supplier of water with the applicable requirements

of this Part.

BOARD NOTE:

 Derived

 from 40 CFR 141.28

 (19~94).

C)

 The CWS supplier shall have required analyses performed either

at

an Agency

 laboratory,

or

 a certified laboratory.

 The Agency may

require

that

some

all

the

required

samples

submitted

its

laboratories.

BOARD

 NOTE:

 This

 is an additional

 State requirement.

Section 611.500

 Consecutive PWSs

When

 a PWS supplies water to one or more other PWSs,

 the Agency shall modify

the monitoring requirements imposed by this Part to the extent that the

interconnection of the PWSs justifies treating them as

 a single PWS

for

monitoring purposes.

 Any modified monitoring must be conducted pursuant to a

schedule specified by special exception permit.

 The Agency shall not approve

such modified monitoring without the concurrence

 of U~S~EPA.

BOARD NOTE:

 Derived from 40 CFR 141.29 (19~94).

Section 611.510

 Special Monitoring

 for Unregulated Contaminants

a)

 Monitoring for Phase

 I unregulated contaminants.

1)

 All CWS and NTNCWS suppliers shall begin monitoring for the

contaminants

 listed

 in subsection

 (a)(5)

 no later than the

the following dates:

A)

 Less than 3300 persons

 served:

 January

1,

 1991.

B)

 3300 to 10,000 persons

 served:

 January

1,

 1989.

C)

 More than 10,000 persons

 served:

 January

1,

 1988.

2)

 SWS and mixed system suppliers shall sample at points in the

distribution system representative of each water source or

at entry points to the distribution system after any

applicaiton of treatment.

 The minimum number of samples is

one year of quarterly samples per water source.

 GWS suppliers shall sample at points of entry to the

distribution system representative

 of each well after any

application

 of treatment.

 The minimum number of samples

is

one sample per entry point to the distribution system.

4)

 The Agency may

 issue

 a SEP pursuant to Section 610.110 to

require a supplier to use a confirmation sample for results

that it finds dubious for whatever reason.

 The Agency must

state its reasons for issuing the SEP

 if the SEP

 is Agency—

initiated.

5)

 List of Phase

 I unregulated chemical contaminants:

Bromàbenzene

Bromodichloromethane

Bromoform

Bromomethane

Chlorobenzene

Chlorodibromomethane

Chloroethane

Chloroform

Chloromethane

o—Chlorotoluene

p-Chlorotoluene

Dibromomethane

m—Dichlorobenzene

1, 1—Dichloroethane

1,3-Dichloropropane

2,2-Dichloropropane

1, 1—Dichloropropene

1, 3—Dichloropropene

1, 1, 1, 2—Tetrachloroethane

1, 1,2,2—Tetrachloroethane

1,2, 3—Trichloropropane

6)

 This subsection corresponds with 40 CFR 141.40(f),

 reserved

by U~S~EPA. This statement maintains structural

consistency

with

U.~S.~.EPA

rules.

7)

 Analyses performed pursuant to subsection

(a)

 shall be

conducted

using

the

following

U..S~EPA Organic

Methods:

Methods

SO2.4~2~-

503.1,

524.-1,~

524.2-,-

502.2cr

their

equivalent as approved by the Agency,

 except that analyses

for bromodichloromethane, bromoform, chlorodibromomethane,

and chloroform may also be performed using U.S. EPA Organic

Methods:

Method

551,

and

analyses

for

l,2,3—trich.oro—

propanernay

also

 be performed using U.S.

 EPA Organic Methods:

Method 504.1,

 all of which are incorporated

 by reference in

Section 611.102.

BOARD

NOTE:

Subsection

(b)

derived

from

CFR

141.40(a)

through

(m)

(199~),

amended

Fed.

Reg.

3181S62469

(~~uly1~7Dec. 5,

199~).

The

Board

has

adopted

counterpart

CFR

141.40(h),

which

the

Board

has

codified

subsection

(C)

below;

141.40(i),

which

pertains

the

ability

suppliers

grandfather

data

until

date long since expired;

 141.41(j),

 an optional UJS~EPA

provision relating to monitoring

 15 additional contaminants

that

U~S~EPAdoes

not

 require for state programs;

141.40(k),

 which pertains to notice to the Agency by smaller

suppliers up until

 a date long since expired in lieu of

sampling;

 141.40(1), which the Board has adopted at

subsection

(d)

 below;

 and 141.40(m),

 an optional provision

that pertains to composite sampling.

 Otherwise,

the

structure of this Section directly corresponds with 40 CFR

141.40(a) through

 (in) (199~)

94

b)

 Monitoring

 for Phase

 V unregulated contaminants.

 Monitoring of

the unregulated organic contaminants listed in subsection (b)(ll)

below and the unregulated inorganic contaminants

 listed

in

subsection

(b)(12)

below

shall

 be conducted as follows:

1)

 Each CWS and NTNCWS supplier

 shall take four consecutive

quarterly samples

 at each sampling point

 for each

contaminant

 listed in subsection

 (b)(11)

 below and report

the results to the Agency.

 Monitoring must be completed by

December

31,

 1995.

Each

CWS

and

NTNCWS

supplier

shall

take

one

sample

each

sampling point for each contaminant listed in subsection

(b)(12) below and report the results to the Agency.

Monitoring must be completed by December 31,

 1995.

3)

 Each CWS and NTNCWS supplier may apply to the Agency for

a

SEP pursuant to Section 611.110 that releases

from

any

the requirements

 of subsections

 (b)(l)

and

(b)(2)

above.

4)

 The Agency shall grant

 a SEP pursuant to Section 611.110 as

follows:

A)

 From any requirement

 of subsection

 (b)(1)

 above based

on consideration of

 the factors

set

 forth at Section

611.110(e),

and

From

any

requirement

subsection

(b)

(2)

above

analytical

results

indicate

contamination

would

 not occur, provided this data was collected

after

January

1990.

5)

 A GWS supplier shall take

 a minimum of one sample at every

entry

point

the

distribution

system

that

representative

 of each well after treatment

 (“sampling

point”).

6)

 A SWS or mixed system supplier shall take a minimum of one

sample at points

 in the distribution system that are

representative of each source or at each entry point to the

system after treatment

 (“sampling point”).

7)

 If the system draws water from more than one source and

sources are combined before distribution,

 the supplier shall

sample at an entry point during periods of normal operating

conditions

 (when water representative of all sources is

being used).

8)

 The Agency may

 issue a SEP pursuant to Section 610.110 to

require a supplier to use a confirmation sample for results

that

it

 finds dubious for whatever reason.

 The Agency must

state its reasons for issuing the SEP if the SEP is Agency—

initiated.

9)

 Suppliers shall take samples at the same sampling point

unless

the

Agency

has

granted

SEP

allowing

another

sampling point because conditions make another sampling

point

representative

the

water

from

each

source

treatment

plant.

BOARD NOTE:

 Subsection

 (b)(9) above corresponds with

duplicate segments of

 40 CFR 141.40(n) (5)

 and (n)(6)

95

(199~4),

which

correspond

with

subsections

(b)(5)

and

(b)(6)

above.

 The Board has adopted

counterpart

CFR

14l.40(n)(9),

 an optional provision that pertains to

composite sampling.

 Otherwise,

 the structure of this

Section directly corresponds with 40 CFR 141.40(n)

 (199~).

10)

 Instead of performing the monitoring required by this

subsection,

 a cWs and NTNCWS supplier serving fewer than

150

service connections may send a letter to the Agency stating

that the ~ws is available for

 sampling.

 This letter must be

sent to the Agency by January

1,

 1994.

 The supplier shall

not send such samples to the Agency, unless requested to do

so by the Agency.

11)

 List of Phase V unregulated organic

 contaminants with

methods required for analysis

 (all methods are from U.S. EPA

Organic Methods unless otherwise noted;

 all are incorporated

by reference in

 Section 611.102):

Contaminant

 U~S~EPAOrganic Methods

Aldicarb

 ___________________________

Aldicarb sulfone

 __________________________

Aldicarb

sulfoxide

__________________________

Aldrin

________

Butachior

Carbaryl

Dicamba

_____________

Dieldrin

3—Hydroxycarbofuran

______________________

Methomyl

Metolachior

_______

Metribuzin

Propachlor

Contaminant

Sulfate

531.1,

 Standard Methods:

Method 6610

531.1, Standard Methods:

MEthod 6610

531.1, Standard Methods:

MEthod 6610

505,

 508,

 508.1,

 525.2

507, 525~

531.1, Standard Methods:

Method

6610

515.1,

 515.2,

555

505,

 508,

525

531.1, Standard

Methods:

Method

6610

531.1,

Standard

Methods:

Method 6610

507,

 508.1, 525~2

507,

 508.1, 525~

507,

 508.1, S25~

12)

 List of unregulated inorganic contaminants

 (all methods

indicated are incorporated by reference

 in Section 611.102):

UCEP2~Inorgpnic Methods

ColorimctrioU.S.

 EPA Environmental

Inorganic Methods:

 Methods 300.0,

375.2;_ASTM D 4327—91;

 Standard

Methods:

 Methods 4110L 45O0—so,P’~

450O—SO~

D

BOARD NOTE:

 Subsection

 (b) derived from 40 CFR

141.40(n)

 (l99~), as amended at 5~ Fed.

 Reg.

3184662471

 (July

 17Dec.

 5, 199Q~).

c)

 Analyses performed pursuant to this Section must be conducted by a

laboratory ~pprovcdcertified

 pursuant to Section 61l.646(q).

BOARD NOTE:

 Subsection

(C)

 derived from 40 CFR 141.40

(h)

(19924),

 ac amended--at

 57 Fad.

 -flog.

 31846 (July

17,

 1992)-.

d)

 All CWS and NTNCWS

 suppliers shall

 repeat the monitoring required

by this Section no less frequently than every

 five years,

 starting

from the dates specified

 in subsections

 (a)(l) and

 (b)(2)

 above.

BOARD

 NOTE:

 Subsection

(d)

 derived from 40 CFR 141.40

(1)

(199~).

(Source:

 Amended at

19

 Ill. Reg.

 effective

_____________________

SUBPART

L:

 MICROBIOLOGICAL MONITORING

AND

ANALYTICAL REQUIREMENTS

Section 611.522

 Repeat Coliform Monitoring

a)

 If a routine sample

 is total coliform—positive,

 the supplier

 shall

collect a set of repeat samples within 24 hours of being notified

of the positive result.

 A supplier that collects more than one

routine sample per month shall collect no fewer than three repeat

samples for each total coliform—positive sample

 found.

 A supplier

that collects one routine sample per month or fewer shall collect

no fewer than four repeat samples for each total coliform—positive

sample

 found.

 The Agency shall extend the 24-hour limit

 on a

case—by—case basis

if

 it determines that the supplier

has

a

logistical

problem

 in collecting the repeat samples within 24

hours that

is

 beyond its control.

 In the case of

 an extension,

the Agency shall specify how much time the

 supplier has to collect

the repeat

 samples.

b)

The

supplier shall collect

at

 least one repeat

 sample from the

sampling tap where the original total coliform—positive sample was

taken,

 and at least one repeat sample at

 a tap within

 five service

connections upstream and at least one repeat sample at a tap

within five service connections downstream of the original

sampling site.

 If a total coliform-positive sample is at the end

of the distribution system,

 or one away from the end of the

distribution system, the Agency may waive the requirement to

 collect at least one repeat sample upstream or downstream of the

original sampling site.

c)

 The supplier shall collect

 all repeat

 samples on the same day,

except that the Agency shall allow a supplier with a single

service connection to collect the required set of repeat samples

over a four—day period or to collect

 a larger volume repeat

sample(s)

 in one or more sample containers of any

 size,

as

 long as

the total volume collected

 is at least 400 ml

 (300 ml

 for PWSs

that collect more than one routine sample per month).

d)

 If one or more

 repeat samples

 in the set

 is total coliform—

positive,

 the supplier shall

 collect an additional set of repeat

samples

 in the manner specified

 in subsections

 (a) through

 (c).

The additional samples must be collected within 24 hours of being

notified of the positive result, unless the Agency extends the

limit as provided in subsection (a).

 The supplier shall repeat

this process until either total coliforms are not detected in one

complete set of repeat samples or the supplier determines that the

MCL for total coliforms

 in Section 611.325 has been exceeded and

notifies the Agency.

e)

If

 a supplier collecting

 fewer than five routine samples/month has

one or more total coliform—positive samples and the Agency does

not

 invalidate the sample(s) under Section 611.523, the supplier

97

‘shall collect at least

 five routine

 samples during the next month

the supplier provides water to the public,

 unless the Agency

determines that the conditions of subsection

 (e)(l) or

(2)

are

met.

 This does not apply to the requirement to collect repeat

samples in subsections

 (a) through

 (d).

 The supplier does not

have to collect the samples

if:

The

Agency

performs

site

visit

before

the

end

the

month the supplier provides water to the public.

 Although

a

sanitary

survey

need

not

performed,

the

site

visit

must

be sufficiently detailed to allow the Agency to determine

whether additional monitoring or any corrective action

is

needed.

2)

 The Agency has determined why the sample was total coliform—

positive and establishes that the supplier has corrected the

problem or will correct the problem before the end of the

next month the supplier serves water to the public.

A)

 The Agency shall document this decision

 in writing,

 and make the document available to U.S. EPA and the

public.

 The written documentation must describe the

specific cause of the total coliform-positive sample

and

what

action

the

supplier

has

taken

will

take

correct the problem.

B)

 The Agency cannot waive the requirement

 to collect

five routine samples the next month the supplier

provides water to the public solely on the grounds

that all

 repeat samples are total coliform—negative.

C)

 Under this subsection,

 a supplier shall still take at

least one routine sample before the end of the next

month

it

 serves water to the public and use

 it to

determine compliance with the MCL for total coliforrns

in

 Section 611.325,

 unless the Agency has determined

that the supplier has corrected the contamination

problem before the supplier took the set of repeat

samples required

 in subsections

 (a) through

 (d), and

all repeat samples were total coliform—negative.

f)

 After a supplier collects

 a routine sample and before

 it learns

the results of

 the analysis of that sample,

if

 it collects another

routine sample(s)

 from within five adjacent

 service connections of

the initial sample, and the initial

 sample,

 after analysis,

is

found to contain total coliforms,

 then the supplier may count the

subsequent sample(s)

as

 a repeat sample

 instead of as a routine

sample.

g)

 Results of

 all routine and repeat samples not invalidated pursuant

to Section 611.523 must be included

 in determining compliance with

the MCL for total coliforms

 in Section

 611.325.

BOARD NOTE:

 Derived

 from 40 CFR 141.21(b)

 (1994).

(Source:

 Amended at 19 Ill.

 Reg.

________,

 effective

_____________________

Section 611.523

 Invalidation of Total Coliforru Samples

A total coliform-positive sample invalidated under this Section does not count

towards meeting the minimum monitoring requirements.

98

a)

 The Agency shall invalidate

 a total coliform-positive sample only

if the conditions of subsection

 (a)(l),

 (a)(2), or

 (a)(3)

 are met.

1)

 The laboratory establishes that

 improper sample analysis

caused

 the total coliform-positive result.

2)

 The Agency, on the basis of the results of repeat

 samples

collected

 as required by Section 611.522(a) through

(d)

determines that the total coliform—positive sample resulted

 from

 a domestic or ether non—distribution system plumbing

problem.

 The Agency cannot

 invalidate a sample on the basis

of repeat sample results unless all repeat

 sample(s)

collected at the same tap as the original total coliform—

positive sample are also total coliform—positive,

 and all

repeat samples collected within

 five service connections of

the original

 tap are total coliform-negative

 (e.g., Agency

cannot

 invalidate a total coliform—positive sample on the

basis of repeat samples

 if all the repeat

 samples are total

coliform-negative,

or

 if the supplier has only one service

connection).

3)

 The Agency determines that there are substantial grounds to

believe that a total coliform-positive result

 is due to

a

circumstance

condition

which

does

not

reflect

water

quality

 in the distribution system.

 In this case,

the

supplier shall

 still

 collect all

 repeat samples required

under Section 611.522(a) through

(d)

 and use them to

determine compliance with the MCL

 for total

 colifornis in

Section 611.325.

 To invalidate a total colifomm—positive

sample under this subsection, the decision with the

rationale for the decision must be documented

 in writing.

The Agency shall make this document available to U.S~EPA

and the public.

 The written documentation must state the

specific cause of the total coliform—positive sample, and

what action the

 supplier has taken,

 or will take, to correct

this problem.

 The Agency shall not invalidate a total

coliform-positive sample solely on the grounds that all

repeat samples are total coliform—negative.

b)

 A laboratory shall invalidate a total coliform sample (unless

total coliforms are detected)

 if the sample produces

 a turbid

culture in the absence of gas production using an analytical

method where gas formation

 is examined

 (e.g., the Multiple—Tube

Fermentation Technique),

 produces

 a turbid culture in the absence

of an acid reaction in the P—A Coliform Test,

 or exhibits

confluent growth or produces colonies too numerous

 to count with

an analytical method using

 a membrane filter

 (e.g., Membrane

Filter Technique).

If

 a laboratory invalidates

 a sample because

of such interference,

 the supplier shall collect another sample

from the same

 location as the original sample within 24 hours of

being notified of the interference problem,

 and have

 it analyzed

for the presence of total coliforms.

 The supplier shall continue

to re—sample within 24 hours

 and have the samples analyzed until

 it obtains

 a valid result.

 The Agency shall waive the 24-hour

time limit on

 a case—by-case basis,

 if it

 is not possible to

collect the sample within that time.

BOARD

NOTE:

Derived

from

CFR

141.21(c)

(199~4).

(Source:

 Amended at

19

 Ill.

 Reg.

_______,

 effective

Section 611.526

 Analytical Methodology

a)

 The standard sample volume required for total colifomm analysis,

regardless of analytical method used,

is

100

 niL.

b)

 Suppliers need only determine the presence or absence of total

colifomms,

 a determination of total colifomm density is not

required.

C)

 Suppliers shall conduct total colifomm analyses in accordance with

one

 of the following analytical methods,

 incorporated by reference

in Section 611.102

 (the time from sample collection to initiation

of

 analysis may not exceed 30 hours):

1)

 Multiple—Tube Fermentation

 (MTF)

 Technique,

 as set forth in

Standard Methods:

 Methods 9221

 A and

B:

A)

 Standard

Hothodru

 Method- 908,

 908A

and 9028, oxoept

that 10 fermentation tubcs must be uoed; orLactose

broth,

 as commercially available,

 may be used in lieu

of

 lauryl tryptose broth

 if the supplier conducts at

least

 25 parallel tests between this medium and

 lauryl

tryptose broth using the water normally tested and

this comparisan demonstrates that the false—positive

rate for total

 coliforms,

 using lactose broth,

is

 less

than

 10 percent;

Microbiological ~1cthodru

 Part

 III,

 Ccction

 B 4.1—

4-.6.4,

 pp. 114-uS,

 (~tootProbable Uumbcr Method),

except that

 10 fermentation tubos must be uocd-~or~

inverted tubes are used ot detect

gas

production,

the

media

 should cover these tubes at

 least one—half to

two—thirds after the sample

 is added;

and

QJ.

requirement

exists

run

the

 mr~1~+~r~

chase

~cent

 of all

 total

 14~m—~4’~veconf4”~’~

tubes

2)

 Membrane Filter

 (MF) Technique,

as

 set forth in Standard

Methods:

 Methods 9222

A,

B,

and

 C-e.L

Standard

Mcthodet

 Method 909,

 909A and 9O9B~-or

Microbiological

Methods:

 Part III, Ccction 8.2.1—2.6,

pp.

108-112,.

3)

 P—A Coliform Test,

 as set forth in:

 Standard Methods:

Method ‘)OBE~or922.

8:

~j.

 No requirement exists to run the completed phase on 10

percent of all total coliforrn—positive confirmed

tubes: and

~).

 Six—times formulation stren~thmay be used if the

medium is filter—sterilized rather than autoclaved

4)

 HHO-HUC test.

The

MHO

 HOC toot ~,iithhopes buffor in

 lieu of

phosphate buffer

 ic an aoaeptable—minor revioion.ONPG—MUG

test:

 Standard Methods:

 Method 9223.

 (The ONPG—MUG test

is also known as the autoanalysis colilert system.

Colisure

~

 frrm

M11iirôr~c~rnbr~$!~itn..

tPh~

~r1i~nr~

B)

test must be incubated

 for 28 hours before examining

results.

 an examination of the results at 28 hours

is

100

not convenient,

 then results may be examined at any time

between

 28 hours and

 48 hours.~

d)

 ~n lieu of the 10-tube HTF Technique opocifiod in subsection

4t~I1~.

m~r

.inr

Fh~

HTP

 Tochniqua using ~th~

five

tuboc (20 ml Qampie porti~~

 ture sottie oon~aLnLng

the

culture

medium

for

 the HTF Toohniquo,

 i.e.,

 lauryl tryptoso

broth

(formulated

described

Standard

Methods.

 Hothod 908A,

inoorporated by reference

 in Section 611.102)

 as long as

 a 100 ml

water sample

 is used

 in the analynis-~This subsection corresponds

with 40 CFR 14l.21(f)(4), which U.S. EPA has marked “reserved”.

This statement maintains structural consistency with the federal

regulations.

e)

 Suppliers shall conduct fecal coliform analysis in accordance with

the following procedure:

1)

 When the MTF Technique or P—A Coliforrn Test is used to test

for total

 coliforms,

 shake the lactose-positive presumptive

tube or P—A vigorously and transfer the growth with a

sterile 3—mm loop or sterile applicator

 stick into brilliant

green lactose bile broth and EC medium,

 defined below,

to

determine the presence of total

 and fecal coliforms,

respectively.

2)

 For Microbiological Happroved methods, referenced

 above,-

that use a membrane filter,

 transfer the total coliform—

positive culture by one of the following methods:

 remove

the membrane containing the total coliform colonies

 from the

substrate with

 a sterile

 forceps

 and carefully curl and

insert the membrane into a tube of EC medium.

 (The

laboratory may first remove

 a small portion of selected

colonies for verification);

 swab the entire membrane filter

surface with a sterile cotton swab and transfer the inoculum

to EC medium (do not

 leave the cotton swab in the

BC

medium); or inoculate individual

 total coliform—positive

colonies into EC medium.

 Gently shake the inoculated tubes

of

 EC medium to insure adequate mixing and incubate

 in a

waterbath at 44.5±0.2°C for 24±2hours.

 Gas production of

any amount

 in the inner fermentation tube of the EC medium

indicates

 a positive fecal coliform test.

3)

 The preparation

 of EC medium

 is described

 in Standard

Methods:

 Method 90BC9221_E.

4)

 Suppliers need only determine the presence or absence of

fecal coliforms,

 a determination of fecal coliform density

is not required.

f)

 Suppliers shall conduct analysis of E.

 coli

 in accordance with one

of the following analytical methods:

1)

 EC medium supplemented with 50 pg/L of MUG

 (final

concentration).

 EC medium is

described

subsection

(e).

 MUG may be added to EC medium before autoclaving.

EC

medium supplemented with 50 pg/L MUG is commercially

available.

At

 least 10 mL of EC

medium

supplemented

with

MUG must be used.

The

 inner inverted fermentation tube may

be omitted.

 The procedure

 for transferring a total

coliform-positive culture to EC medium supplemented with MUG

subsection

(e)

for

transferring

total

coliform—

positive

 culture to EC medium.

 Observe fluorescence with an

101

ultraviolet light

 (366

1-mi)

 in the dark after incubating tube

at 44.5±2°C for 24±2hours; or

2)

 Nutrient agar supplemented with

 100 pg/L MUG

 (final

concentration).

 Nutrient Agar is described in Standard

Methods:

 Mctho4 908Cpages

 9-47 to 9-48.

 This

 test

 is used

to determine

if

 a total coliform—positive sample,

as

determined by the MF technique or

 any other method in which

 a membrane filter

 is used,

 contains

B.

 coil.

 Transfer the

membrane

filter

containing

total

coliform

colony

colonies to nutrient agar supplemented with

 100 pg/L MUG

(final concentration).

 After

 incubating the

 agar plate at

35°Celsius for 4 hours,

observe

 the colony or colonies

under ultraviolet

 light

 (366

 rim)

 in the dark for

fluorescence.

 If fluorescence is visible,

B.

 coli are

present.

3)

 Minimal Medium ONPG-MUG

 (14140-MUG)

 Test,

 as set

 forth

in

Section 611.Appendix D.

 (The Autoanalysis Coliert System

is

a MMO-MtJG test.)

If

 the lIMO-MUG test

 is total coliform

positive after

 a 24-hour incubation,

 test the medium

for

fluorescence with a 366—nm ultraviolet

 light (preferably

with a 6—watt

 lamp)

 in the dark.

 If fluorescence

is

observed,

 the sample

is

B.

 coli—positive.

If

 fluorescence

is questionable (cannot be definitively read) after 24 hours

incubation,

 incubate the culture

for

 an additional

 four

hours

 (but not to exceed 28 hours total), and again test the

medium for fluorescence.

 The MMO-MUG test with hepes buffer

is the only approved formulation for the detection of B.

coli.

 The Colisure Test,

 from Millipore Corporation,

 incorporated

by reference in Section 611.102.

g)

 As an option to the method set forth

in

subsection

 (f)(3),

a

supplier with a total coliform—positive, MUG—negative,

 14140—MUG

test may

 further analyze the culture for the presence of B.

 coli

by transferring a 0.1 mL,

 28—hour

M40—MUG

 culture to BC medium

+

MUG with a pipet.

 The formulation and incubation conditions of

the BC medium

+ MUG,

 and observation of the results are described

in subsection

 (f)(1).

j~

 This subsection corresponds with 40 CFR l41.21(f)(8),

 a central

listing of all documents incorporated by reference into the

federal microbiological analytical methods.

 The corresnondina

Illinois incorporatations by reference are located at Section

611.102.

 This statement maintains structural parity with U.S. EPA

regulations.

BOARD

NOTE:

 Derived from 40 CFR 141.21(f)

 (1994j),

 as amended at

56~.Fed.

 Reg.

 642-,

 January

8,

 1991,

 57 Fed.

 flog.

 1852, January

15,

1992, and 5~Fed.

 fleg.

 24747,

 Juno 10, 199262466

 (Dec.

5,

 1994).

(Source:

 Amended at

 19 Ill.

 Reg.

________,

 effective

_____________________

Section

611.531

Analytical

Requirements

Only the

analytical

method(s)

specified

this

Section

may

used

demonstrate compliance with the requirements of Subpart

B.

 Measurements for

pH, temperature, turbidity and RDCs must be conducted under the supervision of

a certified operator.

 Measurements for total coliforms,

 fecal coliforms and

HPC must be conducted by

 a laboratory certified by the Agency to do such

102

analysis.

 The following procedures must be performed by the following

methods,

incorporated

reference

Section

611.102:

a)

 F-Qua...

uoi~orm

oonoontrationi

 Stanuaru-

twtnu-?rn, .~cn

tu~t

Mcthod~90CC, 90~Dor 909C.A supplier shall:

fl~

 Conduct analysis

of

pH

 in accordance with one of the methods

listed

Section

611.611;

and

Conduct

 analyses to total coliforms,

 fecal coliforms,

heterotrophic bacteria,

 turbidity,

 and temperature

in

accordance with one of the following methods,

 and by using

analytical test procedures contained

 in “Technical Notes on

Drinking Water”,

 available from NTIS, incorporated by

reference in Section 611.102:

~j.

 Total coliform fermentation technique:

 Standards

Methods

(18th

ed.):

Method

9221

and

Jj~

 Lactose broth,

 as commercially available,

 may be

used

 in lieu

of

 lauryl tryptose broth

if

the

supplier conducts

at

 least_ 25 parallel tests

between this medium and

 lauryl tryptose broth

using the water normally tested and this

comparisan

demonstrates

that

the

false-positive

rate for total coliforms,

 using lactose broth,

is less than

 10 percent

JJJ

If

 inverted tubes are used ot detect gas

production,

 the media

 should cover these tubes

at least one—half to two-thirds after the sample

 is added;

and

iii)

 No requirement exists to run the completed phase

on

 10 percent of all total coliform—positive

confirmed tubes

Total

coliform

membrane

filter

 technique:

 Standard

Methods

 (18th ed.):

 Method 9222

A,

B,

 and C.

~

 ONPG—MUG

test

 (also known as the autoanalysis colilert

system):

 Standard Methods

 (18th ed.):

 Method 9223.

~J.

 Fecal coliform MPN procedure:

 Standard Methods

 (18th

ed.):

 Method 9221

E

 (A-1 broth may be held up to

three months

in

 a tightly closed screwcap tube at 4°C

(39°F)).

 Heterotrophic bacteria

 (the time from sample

collection to initiation of analysis must not exceed 8

hours):

 U.S. EPA Environmental

 Inorganic Methods:

Method 180.1

JJJ.

 GLI Method

2.

EJ.

 Temperature:

 Standard Methods

 (18th ed.):

 Method

2550.

b)

 cc~talcoliform cone

 ~ra.~on:

 Standard Methods,

~

“~“~

~“~‘

“~‘

-—

 9G~B-.-A

suonlier

shall

measure

103

residual disinfectant concentrations with one of the following

analytical methods from Standard Methods

 (18th ed.),

 and by using

analytical

 test procedures contained

in

 “Technical Notes on

Drinking Water”, available from NTIS,

 incorporated by reference in

Section 611.102:

 Free chlorine:

Amperonietric Titration:

 Method 4500-Cl

D.

 DPD Ferrous Titrimetric:

 Method 4500—Cl

F.

~J.

 DPD Colimetric:

 Method 4500—Cl C.

~J.

 Sy~rinqaldazine(FACTS):

 Method 4500-Cl

H.

Total

chlorine:

~j.

Amperonietric

Titration:

Method

4500—Cl

~J.

 DPD Ferrous Titrimetric:

 Method 4500—Cl

F.

Qj

DPD

 Colimetric:

 Method 4500-Cl

G.

~J

 lodometric Electrode:

 Method 4500-Cl

I.

~j.

 Chlorine dioxide:

~j.

 Amperometric Titration:

 Method 4500—do,

 C or

E.

~j.

 DPD Method:

 Method 4500—ClO,D.

Ozone:

 Indigo Method:

 Method 4500—O,B~

Alternative test methods:

 The Agency may grant

 a SEP

pursuant to Section 611.110 that allows

 a supplier to use

alternative chlorine test methods as follows:

 DPD colorimetric test kits:

 Residual disinfectant

concentrations for free chlorine and combined chlorine

may

also

measured

using

DPD

colorimetric

test

kits.

Continuous

monitoring

for

free

and

total

chlorine:

Free_and_total

chlorine

residuals

may

measured

continuously by adapting a specified chlorine residual

method_for_use with

 a continuous monitoring

instrument,

 provided the chemistry,

 accuracy, and

precision remain the same.

 Instruments used for

continuous monitoring must be calibrated with a grab

sample measurement

at

 least every five days or as

otherwise provided by the Agency.

BOARD

NOTE:

Suppliers

may

use

 a five—tube test or

 a ten—tube

test.

-ll-t~C,

 Etandard Methods,

 16th fldition, Method 90Th.

d)

c)

 flDCi

104

1)

 Free chlorine and combined chlorine

 (ehloramincs) muot be

measured by Standard Methods,

 16th Edition, Method 408C,

408D,

408E

40SF~

Oeone

must

measured

the

Indigo

method,

 automated

methods which arc calibrated

 in reference to the roculta

obtained by the Indigo method on

 a regular bacto,

if

approved

the

Agency.

3-)

 Chlorine

 dioxide must be measured by Standard Methods,

 l6*h

Edition, Methods 41GB or 410C.

C --

rd

Methods,

 16th Edit-i

~,__t.__.,

BOARD NOTE:

 Derived from 40 CFR 141.74(a) (19~9~j,as amended at

54.~.Fed.

 Reg.

 2-7-526, June

29,

 198-962470

 (Dec.

5,

 1994).

SUBPART M:

 TURBIDITY

 MONITORING

 AND ANALYTICAL

 REQUIREMENTS

Section 611.560

 Turbidity

The requirements

 in this Section apply to unfiltered

1991,

 unless the Agency has determined prior to that

required.

 The requirements

 in this Section apply to

29,

1993.

The

requirements

this

Section

apply

Agency has determined must install filtration,

 until

filtration is

 installed, whichever

is

 later.

PWSs until December

30,

date that filtration is

filtered PWSs until

 June

unfi1t~ered

 PWSs that the

June

29,

 1993,

 or until

a)

 Suppliers shall take samples at representative entry point(s)

to

the distribution system at least once per day,

 for the purposes of

making turbidity measurements to determine compliance with Section

611. 320.

1)

 If Public Health determines that

 a reduced sampling

frequency in a non-CWS will not pose a risk to public

health,

 it may reduce the required sampling frequency. The

option of reducing the turbidity frequency will be permitted

only in those suppliers that practice disinfection and which

maintain an

 active RDC in the distribution system, and

in

those cases where Public Health has indicated in writing

that no unreasonable risk to health existed under the

circumstances of this option.

2)

 The turbidity measurements must be made in accordance with

the following methods,

 incorporated

reference

Section

611.102:

A)

 By the Nephelometric Method:

Standard

Methods:

 Method 214A;

or

ii)

 U~S~EPAInorganic Methods:

 Method 180.1.

B)

 Calibration of the turbidimeter must be made either by

the use of

 a formazin

 standard as specified in the

cited references,

 or a styrene divinylbenzene polymer

standard

 (P.rnco—AEPA—1 Polymer).

b)

 If the result of

 a turbidity analysis indicates that

 the maximum

105

allowable limit has been exceeded,

 the sampling

 arid measurement

must be confirmed by resampling

 as soon

 as practicable and

preferably within one hour.

 If the repeat sample confirms that the

maximum allowable

 limit hasbeen exceeded,

 the supplier of water

shall report to the Agency within

 48 hours.

 The repeat

 sample must

be the sample used for the purpose of calculating the monthly

average.

 If the monthly average of the daily samples exceeds the

maximum allowable limit,

or

 if the average of two samples taken on

consecutive

days

exceeds

NW,

 the supplier of water shall report

to the Agency and notify the public as directed in Subpart

 T of

this

Part.

c)

 Sampling for non—CWSs must begin by June 29,

 1991.

d)

 This Section applies

 only to suppliers

 that use water obtained

in

whole or in part from surface

 sources.

BOARD NOTE:

 Derived from 40 CFR 141.22

 (199,~4).

(Source:

 Amended at

19

Ill.

 Reg.

________,

 effective

_____________________

SUBPART

N:

 INORGANIC

 MONITORING

 AND ANALYTICAL REQUIREMENTS

Section 611.600

 Applicability

The following types of suppliers

 shall conduct monitoring to determine

compliance with the old HCLs

 in Section 611.300 and the revised MCLs

in

611.301,

 as appropriate,

 in accordance with this Subpart:

a)

 CWS suppliers.

b)

 NTNCWS suppliers.

 Transient non—CWS suppliers to determine compliance with the

nitrate

 and nitrite MCLs.

BOARD NOTE:

 Derived

 from 40 CFR 141.23

 (preamble)

 (l99~4).

d)

 Detection limits.

 The following are detection limits

 for purposes

of this Subpart

 (MCLs from Section 611.301 are set

 forth for

information purposes only):

Detec—

MCL

 (mg/L,

 tion

except as-

 Limit

Contaminant

 bestos)

 Method

 (mg/L)

Antimony

 0.006

 Atomic absorption—furnace

 0.003

technique

Atomic absorption—furnace

 0.0008

technique (stabilized

temperature)

Inductively—coupled

plasma—

0.0004

Mass spectrometry

Atomic absorption—gaseous

 0.001

hydride technique

Asbestos

 7 MFL

 Transmission electron

 0.01 MFL

106

microscopy

Barium

Atomic

absorption—

furnace

0.002

technique

Atomic

absorption—

direct

0.1

aspiration

technique

Inductively—coupled

plasma

 0.002

arc furnace

Inductively—coupled plasma

 0.001

(using concentration

technique

appendix

200.7A

to USEflA morgan-ic

Method 200.7)

Beryllium

 0.004

 Atomic absorption—furnace

 0.0002

technique

Atomic absorption—furnace

 0.00002

technique

(stabilized

temperature)

Inductively—coupled

plasma

0.0003

(using

preconcen—

tration

step;

lower

MDL

is possible using 4x

preconcentrat

ion)

Inductively-coupled

plasma-

0.0003

Mass spectrometry

Cadmium

 0.005

 Atomic absorption-

 furnace

 0.0001

technique

Inductively—coupled plasma

 0.001

(using

concentration

technique

 in appendix

200.7A

to USEPA

Inorganic

Method

200.7)

Chromium

0.1

 Atomic absorption—

 furnace

 0.001

technique

Inductively—coupled

plasma

 0.007

Inductively—coupled plasma

 0.001

(using concentration

technique

 in appendi~t

200.7A to USEPA

 Inoraan...o

Method 200.7)

Cyanide

0.2

 Distillation,

 0.02

spectrophotometric

(screening

method

for

total

cyanides)

Automated distillation,

 0.005

spectrophotometric

(screening method

 for total

cyanides)

107

Distillation,

selective

electrode (screening method

for total cyanides)

Distillation,

 amenable,

spectrophotometric

(for

free cyanides)

Manual

 cold vapor technique

Automated

cold

vapor

technique

Atomic absorption—furnace

technique

Atomic absorption—furnace

 0.0006

technique (stabilized

temperature)

Inductively—coupled

plasma

(using a 2x preconcen—

tration step;

 a lower MDL

is

 possible using 4x

preconcentration)

Inductively—coupled plasma—

Mass spectrometry

Manual cadmium reduction

Automated hydrazine

reduction

Automated cadmium reduction

Ion—selective electrode

Ion chromatography

Spectrophotometric

Automated cadmium reduction

Manual cadmium reduction

Ion chromatography

Atomic absorption—

 furnace

technique

Atomic absorption— gaseous

hydride technique

Atomic absorption—furnace

technique

Atomic absorption—furnace

technique (stabilized

temperature)

Inductively—coupled plasma—

0.05

0.02

0.0002

0. 0002

0.001

Mercury

 0.002

Nickel

0.1

Nitrate

(as

N)

10

Nitrite

 (as N)

1

Selenium

 0.05

Thallium

 0.002

0.005

0. 0005

0.01

0.01

0.05

1

0.01

0.01

0.05

0.01

0.004

0.002

0.002

0.001

0. 0007

0.0003

108

Mass spectrometry

BOARD NOTE:

 Derived from

 40 CFR 141.23 preamble and paragraph

(a)(4)(i)

 (1994~4jTas amended at

 67 Fed.

 Reg.

 31838—39

 (July

17,

1992).

(Source:

Amended

Ill.

Reg.

________,

effective

______________________

Section 611.601

 Monitoring Frequency

Monitoring shall be conducted as follows:

a)

 Required sampling.

1)

 Each supplier shall take

 a minimum of one sample at

 each

sampling point

 at the times required by Section

 611.610

beginning in the initial compliance period.

2)

 Each sampling point must produce

 samples that are

representative of the water from each source after treatment

or from each treatment plant,

 as required by subsection

(b)

below.

 The total number of sampling points must be

representative of the water delivered to users throughout

the PWS.

3)

 The supplier shall take each sample at the same sampling

point unless conditions make another sampling point more

representative of each source or treatment plant and the

Agency has

granted a SEP

pursuant to subsection

 (b)(5)

below.

b)

 Sampling points.

1)

 Sampling

 points for GWSs.

 Unless otherwise provided by

 SEP,

a GWS supplier shall take at least one sample from each of

the following points:

 each entry point that

is

representative of each well after treatment.

2)

 Sampling points

 for SWSs and mixed systems.

 Unless

otherwise provided by SEP,

 a SWS or mixed system supplier

shall take at

 least one sample from each of the following

points:

A)

 Each entry point after the application of treatment;

or

B)

 A point

 in the distribution system that

is

representative of each source after treatment.

3)

 If a system draws water from more than one source,

 and the

sources are combined before distribution,

 the supplier shall

sample at an entry point during periods of normal operating

conditions when water

 is representative

of

 all sources being

used.

4)

 Additional sampling points.

 The Agency shall, by SE?,

designate

additional

sampling

points

the

distribution

system or

 at the consumer’s tap if

 it determines that such

 samples are necessary to more accurately determine consumer

exposure.

5)

 Alternative sampling points.

 The.Agency shall,

 by SE?,

109

approve alternate sampling points

if

 the supplier

demonstrates that the points are more representative than

the generally required point.

c)

 This subsection corresponds with 40 CFR 141.23(a) (4),

 an optional

U~S.~.EPAprovision relating to compositing of samples that ~

EPA does not

 require for state programs.

 This statement maintains

structural consistency with U.S~.EPArules.

d)

 The frequency of monitoring for the following contaminants must be

in accordance with the following Sections:

1)

 Asbestos:

 Section 611.602;

2)

 Antimony,

 barium,

 beryllium, cadmium,

 chromium,

 cyanide,

fluoride, mercury~nickel,

 selenium,

 arid thallium:

 Section

611.603;

3)

 Nitrate:

 Section 611.604;

and

4)

 Nitrite:

 Section 611.605.

BOARD NOTE:

 Derived

 from 40 CFR 141.23(a)

and

(C)

 (199~)

and

 -10 CFR 141.23(o),

as

 amended

at

57

 Fed.~ Rag.

31839

 (July

17,

 1992).

(Source:

 Amended at

 19 Ill.

 lkeg.

________,

 effective

_____________________

Section 611.603

 Inorganic Monitoring Frequency

The

frequency

 of monitoring conducted to determine compliance with the revised

Z4CLs in Section 611.301

 for antimony,

 barium, beryllium, cadmium,

 chromium,

cyanide,

 fluoride,

 mercury,

 nickel,

 selenium,

 and thallium is as follows:

a)

 Suppliers shall take samples

 at each sampling point, beginning

in

the initial compliance period,

 as follows:

1)

 For CWS5:

at

 least one sample every tnrcc--ycarsdurin~each

compliance period

2)

 For SWSs and mixed systems:

at

 least one

 sample each year.

BOARD NOTE:

 Derived from 40 CFR 14l.23(c)(1)

 (199a~.).

b)

 SEP Application.

 The supplier may apply to the Agency

for

 a SEP that allows

reduction from the monitoring frequencies specified

in

subsection

 (a) above pursuant to subsections

 (d) through

(f)

below and Section

 611.110.

 The supplier may apply to the Agency for a SEP that relieves

it of the requirement

 for monitoring cyanide pursuant to

subsections

(d)

through

(f)

below

and

Section

611.110.

BOARD NOTE:

 Drawn from 40 CFR 141.23(c) (2)

and

(c)(6)

(199~).

C)

 SEP Procedures.

 The Agency shall review the request pursuant to

the SEP procedures

 of Section

 611.110 based on consideration of

the factors in subsection

 (e) below.

110

BOARD NOTE:

 Drawn from 40 CFR 14l.23(c)(6)

 (199a4).

Standard

for

SEP

reduction

monitoring.

The

Agency

shall

grant

SEP

that

allows

reduction

the

monitoring

frequency

the

supplier demonstrates that all

analytical

results

were

less than the MCL, provided the supplier meets the

 following

minimum data requirements:

1)

 For GWS suppliers:

 a minimum of three rounds of monitoring.

2)

 For SWS and mixed system suppliers:

 annual monitoring

for

at

 least three years.

3)

 At least one sample must have been taken since January

1,

1990.

4)

 A supplier that uses

 a new water source is not eligible for

SEP

until

completes

three

rounds

 monitoring from the

new source.

BOARD NOTE:

 Drawn from 40 CFR 141.23(c)(4)

 (l994).

e)

 Standard for SEP monitoring conditions.

 As a condition of any

SEP, the Agency shall require that the supplier take a minimum of

one sample during the term of the SEP.

 In determining the

appropriate reduced monitoring frequency,

 the Agency shall

consider:

Reported

concentrations

from

all

monitoring;

2)

 The degree of variation in reported concentrations; and

3)

 Other factors may affect contaminant

 concentrations,

 such as

changes

 in groundwater pumping rates,

 changes

 in the CWSs

configuration,

 the CWS’s operating procedures, or changes

in

stream flows or characteristics.

BOARD NOTE:

 Drawn

 from 40 CFR 141.23(c)(3) and

 (c)(5)

(199~34).

f)

 SEP Conditions and Revision.

1)

 A SEP will expire at the end of the compliance cycle for

which

 it was issued.

BOARD NOTE:

 Drawn from 40

CFR

141.23(c)(3)

(l99~).

2)

 In issuing a SEP, the Agency shall specify the level of the

 contaminant upon which the “reliably and consistently”

determination was based.

 A SEP must provide that the Agency

will review and, where appropriate,

 revise its determination

of the appropriate monitoring frequency when the supplier

submits new monitoring data or when other data relevant to

the supplier’s appropriate monitoring frequency become

available.

BOARD NOTE:

 Drawn from 40 CFR l41.23(c)(6)

 (1993~).

g)

 A supplier that exceeds the MCL for antimony,

 barium, bervl1ium~

cadmium,

chromium,

cyanide,

fluoride,

mercury,

nickel,

selenium,

 or thallium,

 as determined in Section 611.609,

 shall

monitor quarterly for that contaminant, beginning in the next

111

quarter after the violation occurred.

BOARD NOTE:

 Derived from 40 CFR l41.23(c)(7)

 (199~4).

h)

 Reduction of quarterly monitoring.

1)

 The Agency shall

 grant a SEP pursuant to Section 611.110

that reduces

 the monitoring frequency to that specified by

subsection

 (a) above if

 it determines that the sampling

point

 is reliably and consistently below the MCL.

2)

 A request for

 a SEP must include the following minimal

information:

A)

For

 a GWS:

 two quarterly samples.

B)

 For an sws or mixed system:

 four quarterly samples.

3)

 In issuing the SEP,

 the Agency shall specify the level of

the contaminant upon which the “reliably and consistently~

determination was based.

All

 SEPs that

 allow less frequent

monitoring based on an Agency ~‘reliably and consistently”

determination shall include a condition requiring the

supplier to resume quarterly monitoring

 for any contaminant

pursuant

 to subsection

 (g) above

if

 it violates the MCL

specified by Section 611.609 for

 that contaminant.

BOARD NOTE:

 Derived

 from 40 CFR 14l.23(c)(8)

 (199~3~j.

(Source:

 Amended

at

 19 Ill.

 Reg.

________,

 effective

_____________________)

Section 611.605

 Nitrite Monitoring

Each supplier shall monitor to determine compliance with the MCL for nitrite

in Section 611.301.

a)

All

 suppliers shall take one sample at each sampling point during

the compliance period beginning January

1,

 1993 and ending

December 31,

 1995.

b)

 This subsection corresponds with 40 CFR 14l.23(e)(2),

 a provision

by which ~

 refers to state requirements that do not exist

in Illinois.

 This statement maintains structural consistency with

U.S. EPA rules.

C)

 Repeat monitoring frequency.

1)

 Quarterly monitoring.

A)

 A supplier that has any one sample in which the

concentration

 is equal to or greater than 50

percent

of the MCL shall initiate quarterly monitoring during

the next quarter.

B)

 A supplier required to begin quarterly monitoring

pursuant to subsection (c)(1)(A)

 shall continue on a

quarterly basis for

 a minimum of one year following

any one sample exceeding the SO percent of the MCL,

 after which the supplier may discontinue quarterly

monitoring pursuant to subsection

 (c)(2).

The

Agency

 shall grant

 a SEP pursuant to Section 611.110

112

that

allows

supplier

reduce

its

monitoring

frequency

annually

if

 it determines that the sampling point

is

reliably and consistently below the MCL.

A)

 A request

for

 a SEP must include the following minimal

information:

 the results from four quarterly samples.

B)

 In issuing the SE?,

 the Agency shall specify the

 level

of the contaminant upon which the

 “reliably and

consistently’s determination was based.

 All SEPs that

allow less

 frequent monitoring based on an Agency

“reliably and consitently” determination shall include

a condition requiring the

 supplier to resume quarterly

monitoring

 for nitrite pursuant

 to subsection (c)(1)

if

 it equals or exceeds

 50 percent of the MCL

specified by Section 611.301 for nitrite.

d)

 A supplier that

 is monitoring annually shall take samples during

the quarter(s) which previously resulted in the highest analytical

result.

BOARD NOTE:

 Derived

 from 40 CFR

 141.23(e)

 (199~4).

(Source:

 Amended

at

19

 Ill.

 Reg.

________,

 effective

_____________________

Section

 611.606

 Confirmation Samples

a)

 Where the results of sampling for

 antimony,

 asbestos,

 barium,

beryllium,

 cadmium,

 chromium,

 cyanide,

 fluoride,

 mercury,

 nickel

er—selenium,

 or thallium indicate

 a level in excess of the MCL,

the supplier shall collect one additional sample as soon as

possible after the supplier receives notification of the

analytical result

 (but no later than two weeks after the initial

sample was taken)

 at the

 same sampling point.

b)

 Where nitrate or nitrite sampling results indicate

 level in excess

of the MCL, the supplier shall take a confirmation sample within

24 hours after the supplier’s receipt of notification of the

analytical

 results of the first sample.

1)

 Suppliers unable to comply with the 24—hour sampling

requirement must, based on the initial sample,

 notify the

persons served

 in accordance with Section 611.851.

2)

 Suppliers exercising this option must take and analyze

a

confirmation sample within two weeks of notification of the

analytical results of the first

 sample.

c)

 Averaging rules are specified

 in Section 611.609.

 The Agency

shall delete the original or confirmation sample

if

 it determines

that a sampling error occurred,

 in which case the confirmation

sample will replace the original sample.

BOARD NOTE:

 Derived

 from 40 CFR 141.23(f)

 (1994~4).

(Source:

 Amended

 at 19

 Ill.

 Reg.

________,

 effective

_____________________

Section 611.609

 Determining Compliance

Compliance with the MCLs of Sections 611.300 or 611.301

 (as appropriate) must

be determined based on the analytical result(s) obtained at each sampling

point.

113

a)

 For suppliers that monitor

at

 a frequency greater than annual,

 compliance with the MCLs

 for antimony,

 asbestos,

 barium,

beryllium,

 cadmium,

 chromium,

 cyanide,

 fluoride,

 mercury,

 nickel,

selenium, an4~

thallium

determined

running

annual

average

at each sampling point.

1)

 If the average at any sampling point is greater than the

MCL, then the supplier is out

 of compliance.

2)

 If any one sample would cause the annual average to be

exceeded,

 then the supplier

 is out of compliance

immediately.

3)

 Any sample below the method detection limit must be

calculated at zero for the purpose of determining the annual

average.

BOARD NOTE:

 The “method detection

 limit” is different from

the “detection limit”,

as

set

 forth

 in Section

 611.600.

The

“method detection limit”

 is the level of contaminant that

can be determined by

 a particular method with a

 95 percent

degree of confidence,

 as determined by the method outlined

in 40 CFR

 136, appendix

8,

 incorporated by reference at

Section 611.102.

b)

 For suppliers that monitor annually or less frequently, compliance

with the MCLs for antimony,

 asbestos,

 barium,

 beryllium,

 cadmium,

chromium,

 cyanide,

 fluoride,

 mercury,

 nickel,

 selenium, en4~

thallium

 is determined by the level of the contaminant at any

sampling point.

If

 a confirmation sample

 is taken,

the

determination of compliance will be based on the average of the

two samples.

C)

 Compliance with the MCLs

 for nitrate and nitrite is determined

based on one sample if the levels of these contaminants are below

the MCLs.

 If the levels of nitrate or nitrite exceed the MCLs

in

the initial

 sample,

 Section 611.606 requires confirmation

sampling,

 and compliance

 is determined based on the average of the

initial and confirmation samples.

d)

 When the portion of the distribution system that is out of

compliance

 is separable from other parts of

 the distribution

system and has no interconnections, the supplier may give the

public notice required by Subpart T only to persons served by that

portion of the distribution system not

 in compliance.

BOARD NOTE:

 Derived from 40 CFR 141.23(i)

 (l99~4).

(Source:

 Amended at

19

 Ill.

 Reg.

________,

 effective

_____________________

Section 611.611

 Inorganic Analysis

Analytical methods are from documents incorporated

 by reference in Section

611.102.

 These are mostly referenced by

 a short name defined by Section

611.102(a).

 Other abbreviations are defined in Section 611.101.

a)

 Analysis for antimony,

 aobcoto~s, beryllium,-

bar~im.

cadm..,.....,

chromium,

 cyanide,- mercury,

 nickel,

 nitratc, ~

~

and thallium pursuant to Lootiono 611.600 through 611.604~j~

following contaminants must be conducted using the following

methods.

 Criteria for analyzing arsenic, chromium,

 copper,

 lead,

nickel,

 selenium,

 sodium,

 and thallium with digestion,

 and other

114

analytical

 procedures,

 are contained

in

 “Technical Notes on

Drinking Water Methods”,

 available

 from NTIS,

 incorporated by

reference

 in Section 611.102.

 (This document also contains

approved analytical test methods that remain available for

compliance monitoring until July

1,

 1996.

 These methods will not

be available for use after July

1,

 l996.jFor approved anal-yti-cal

teohniqueo

 for metals and polonium,

 the tcohniqu

 applicable to

total ~otalo must be used.

 For mothodo marked with an actoriok

(sfr),.

~

 ow muot be used for

preservation, measurement

 .....cscotion.

1)

 Antimony:

A)

 Atomic—abso~-p~

 naca

u~rt~

 Inorganic netnooct

 Metnoci ~

or

Standard

 Hcthod

gv~um1~a~

r~tion,

uiacrorm

 rurnaca

tnnL~c!u~*,

 USE??

Environmenta’ Metals

 z:cthoda:

 ~cthoa

~

G~)

 Inductively-coupled plasma-Mass

 spectrometry~.:

 (3~.S~

EPA Environmental Metals Methods:

 Method 200.8p

or.

~

 Atomic absorption,

 gacicous~hydridetechnique, using

the digeoti-on technique—oct

 forth

 in the method:

 ASTM

Method D3697—&~-92.

QJ.

 Atomic absorption,

 platform furnace technique:

 U.S.

EPA Environmental Metals Methods:

 Method 200.9.

~j

 Atomic absorption,

 furnace technique:

 Standard

Methods:

 Method 3113

8.

Inductively-coupled Plasma:

Jj.

 U.S. EPA Environmental Metals Methods:

 Method

200.7,

or

jjj.

 Standard Methods

 (18th ed.~: Method 3113

B.

~j•

 Inductively—coupled plasma—mass

 spectrometry:

 U.S.

EPA Environmental Metals Methods:

 Method 200.8.

Q)..

 Atomic

 absorbtion,

 platform furnace technique:

 U.S.

EPA Environmental

 Metals Methods:

 Method 200.9.

~J.

 Atomic Absorbt ion,

 furnace technique:

 ASTM D2972—93

C,

or

jjj

 Standard Methods:

 Method 3113

3.

~J.

 Atomic absorbtion,

 hydride technique:

 ASTM D2972—93

 B, or

jjj.

 Standard Methods:

 Method 3114

B.

~~ocppurc of ouboeeti:~ (f) bcl

of~turbidity,

and

3113;

2i.

 Arsenic:

115

~3)

 Asbestos:

 Transmission electron microscopy:

 U~.S~.EPA

Asbestos Methods—lOO..1 and

 U.S.

 EPA Asbestos Methods—100.2.

~4)

 Barium:

azJ~-orntL~nf

rur~~

 tcchnique-”:

4.)

 UZEPA Inorganic nc-tnou~,

 !wtnou ~

O~

Etandard Methodes

 Method 3113B;

iitomiu

 aDuorpt~.on, cu.reot ae

irutton

 to-chniauo.

Inoraania Hothodo~

 Method 208.1,

or

iL)

 Ltandard Mothodot

 Motnoci 4111D

-or

Q~)

 Inductively-coupled plasma arc f-urnacc~:

i)

 U.S.EPA Environmental Metals

 Methods:

 Method

200.7-r,

or

ii)

 Standard Methods:

 Method 312O~.~.

~j

 Inductively—coupled plasma—mass spectrometry:

 U.S.

EPA Environmental Metals Methods:

 Method 200.8.

g.).

 Atomic absorption,

 direct aspiration technique:

Standard Methods:

 Method

 3111 D.

P1

 Atomic absorption,

 furnace technique:

 Standard

Methods:

 Method 3113

B.

4~)

 Beryllium:

Atomic

 absorDt

na-ce

ur~ri~u~-,

i)

UCEI’Z~

Inorganic Methods:

 Mctnocz =.~u...,

.‘~STUMethod D364S—848, or

~~tana~ranctno-u~: Hctnou

Atomic absorption,

 platform furnaoo

 tcohniquo4i

u~.

Environmental Metale ~cthods:

 Method 20O.~7

GA)

 Inductively—coupled plasma arc

 furnace4:

i)

 17.5.

 EPA Environmental Metals Methods:

 Method

200.7,

or

ii)

 Standard Methods:

 Method 3l20.~p or

~)

 Inductively—coupled plasma—Mass speCtrometry~:

~

EPA Environmental Metals Methods:

 Method 200.8.

~J.

 Atomic absorption, platform furnace technique:

 U.S.

EPA Environmental

 Metals Methods:

 Method 200.9.

P1

 Atomic absorption,

 furnace technique:

j)..

 ASTM Method D364S—93

3,

or

116

iiil

 Standard Methods:

 Method 3113

B.

~)

Cadmium:

tt-~—-

 ?~tomicabsorption,

 rurnace

tccnniquc’e-

...norganic Hcthodot

 Method 213.2,

or

ii)

 Standard Methods:

flctho-d

31133;

or

~)

 Inductively-coupled plasma arc furnace~: U~.S~.EPA

Environmental Metals Methods~,.: Method 200.7.

,~j

 Inductively-coupled plasma—mass spectrometry:

 U.S.

EPA Environmental Metals Methods:

 Method

 200.8,

~).

 Atomic Absorbtion,

 platform furnace technique:

 U.S.

EPA Environmental Metals Methods:

 Method 200.9.

P1

 Atomic absorption,

 furnace technique:

 Standard

Methods:

 Method 3113

3.

67)

 Chromium:

A-)

 Atomic abo-orption,

 furnace technique~:

~

u~.t-~i

 Inorganic Methods.

 Method 218.2,

or

ii)

Standard

 Methods,

 Method

 31133;

or

8~)

 Inductively-coupled plasma arc

 furnace.*.:

i)

 U.S. EPA Environmental Metals Methods:

 Method

200.7.r,

or

ii)

 Standard Methods:

 Method 3120~.

~J

 Inductively—coupled plasma—mass spectrometry:

 U.S.

EPA Environmental Metals Methods:

 Method 200.8.

Qj.

 Atomic absorbtion,

 platform furnace technique:

 U.S.

EPA Environmental Metals Methods:

 Method 200.9.

P1

Atomic

absorption,

furnace

 technique:

 Standard

Methods:

 Method 3113

8.

~)

 Cyanide:

A)

 Distillation

 (Standard Methods:

 Method 4500—Clfl,

followed by spectrophotometric,

 amenable:

4.-)-

 USEPA Inorganic Mothods.

 Hot-hod

 335.2,-

i4.)

 ASTM Method D2036-&9-A91_B,

ii4)

 Standard Methods:

 Method 4500—CM

~

iv)

 UCCC H~cnocw, Hetnod

 I -~uuuS

B)

 Mt#omatcd—dbistillatjon (Standard Methods:

 Method

4500—CN,

 followed by spectrophotometric,

 manual:

117

Methodgi- ASTM Method 335.3D2036—

91 A,—e*

ii)

 Standard Methods:

 Method 4500—CM E~., or

j,yj

 USGS Methods:

 Method 1—3300—85.

C)

 Distillation

 (Standard Methods:

 Method 4500—CNI,

followed by semiautomated spectrophotometricoclective

clcotrpde:

 U.S. EPA Environmental Inorganic Methods:

Method 335.4.

i)

 ASTM Method D2036

Z9A,

or

ii)

 Standard Mcthod~

 Method 4S00 CM

F;

or

D)

 Di-otillation,

 amenable,

 spectrophotomctricSelective

electrode:

 Standard Methods:

 Method 4500—CW

F.

i)-

 USEPA Inorganic Hothodcs

 Method 335.1,

4i~

 ACTh Method D2036-893,

or

Standard Methods,

 Method 4500 CM

C.

P1

 Fluoride:

 Ion Chromatography:

fl

 U.S. EPA Environmental

 Inorganic Methods:

Method 300.0,

£j).

 ASTM Method D4327—91,

or

iii)

 Standard Methods:

 Method 4110

B.

~j.

 Manual distillation,

 colorimetric SPADNS:

 Standard

Methods:

 Method 4500-F B and D.

Qj.

 Manual electrode:

fl

 ASTM D1179—93B,

or

Li.).

 Standard Methods:

 Method 4500—F C.

P.).

 Automated electrode:

 Technicon Methods:

 Method 380—

75WE.

~j..

 Automated alizarin:

fl

 Standard Methods:

 Method 4500—F E,

or

JJ~J.

 Technicon Methods:

 Method

 129—71W.

8~Q)

Mercury:

A)

 Manual cold vapor technique,

 using

 the- digeotion

technique oct forth in the method:

i)

 U.S.

 EPA InorganicEnvironmental Metals Methods:

Method 245.1,

118

ii)

 ASTM D3223-&6P1,

or

iii)

 Standard Methods:

 Method 3112_B;

or.

B)

 Automated cold vapor technique, ucing the digestion

tcchniqu~s-ct forth

 in the-method:

 U.S. EPA Inorganic

Methods:

 Method 245.2.

Qj~

 inductively—coupled plasma—mass spectrometry:

 U.S.

EPA Environmental Metals Methods:

 Method 200.8.

~fl)

 Nickel:

Atomi.c

 absorption,

 rurnace tccnni-~iuo~i-

USEPA Ir

 a~.cMethods.

 Method

ii”

Standard

Methods.

Method

31l3-~

Atomic absorption, platform furnace tcchnique~i UBE~

~v~ronmcntal

 Metal-s Methods.

 Method 200.9;

Atomic

 absorption,

 direct aspiration technique4.

i)

0C5P2\

 Inorganic Methods:

 Method 249.1,

or

-it’~

 -Standard Methods.

 Method 3111B

~A)

 Inductively—coupled plasma*.:

i)

 U.S. EPA Environmental Metals Methods:

 Method

200.7,

or

ii)

 Standard Methods:

 Method 3120

Bi—o~.

EB)

Inductively-coupled

plasma—Mass

spectrometry~:

EPA Environmental Metals Methods:

 Method 200,8.

ç~

 Atomic absorption, platform furnace technique:

 U.S.

EPA Environmental Metals Methods:

 Method 200.9

p.1

 Atomic absorption, direct aspiration technique:

Standard Methods:

 Method 3111 B

~

 Atomic absorption,

 furnace technique:

 Standard

Methods:

 Method 3113 B

1~2.)

 Nitrate:

i)

USE~PA

Inorganic Hothodot

 Method

 353.3~,-

ii)

 ACTH D3-867 ~0-,or

iii)-

 Standard Mothodni

 Method -1500-N0,—&-

—I

119

norgan~u

t~tnuu~:

 Method 353.2,

4L)

 A~T~03867—90.

or

iii)

 £~andardMethods:

 Method 4500 N0,—Ff

D)

 Ion selective cloetrode.

 VTeWWC/5580- availabi

~

 floccar~ or

~)

 Ion chromatography:

i)

 U.:.S.~.EPAIon ChromatographyEnvironmental

InorQanic Methods:

 Method 300.0,—e*

Li.).

 ASTM D4327—91,

iii~

 Standard Methods:

 Method 4500—NO1, or

i~)

 B-lOll,

 available from Millipore Corporation.

~J.

 Automated cadmium reduction:

jj

 U.S. EPA Environmental

 Inorganic Methods:

Method 353.2,

JJJ.

 ASTM 03867—90

 8, or

iii)

 Standard Methods:

 Method 4S00—NO~F.~.

~j.

 Ion selective electrode:

it

 Standard Methods:

 Method

 4500—NO.1 D,

or

£jI

 Technical Bulletin 601.

Q)~

 Manual cadmium reduction:

.jj.

 ASTM 03867—90

B,

or

iii~ Standard Methods:

 Method 4500—NO,_~

14~) Nitrite:

Epcotrophotomctrioi

~-i~

Inoraan~..u

ncinuuu

354.lf

Automated

cadmium

reduct..~..z

i-i

i~i~

Inorganic

zictnouCl

 Method

 353-.-2

ii~

 ACTM~fl386-7

 9fl.

or

 ~andard

~ui..hpdpt

 Method 4500—

 Manual cadmium reduction:

—

1...

..A_L...3.

t,..s.L_S

~p.

120

~A)

 Ion chromatography:

U.~.S.~_.EPA

Ion

ChromatographyEnvironmental

Inorganic Methods:

 Method 300.D,—e~

£jJ,

 ASTM 04327—91,

iii~ Standard Methods:

 Method 4110 3,

or

i4~)

 Method 8-1011,

 available from Millipore

Corporation.

~J.

 Automated cadmium reduction:

fl

 U.S.

 EPA Environmental

 Inorganic Methods:

Method 353.2,

LL).

 ASTM 03867-90

A,

or

iiiI

 Standard Methods:

 Method 4500—Np~_~

QI

 Manual cadmium reduction:

~

 ASTM 03867—90

B,

or

Lil

Standard

Methods:

Method

450O-N0~E.

P1

 Spectrophotornetric:

 Standard Methods:

 Method 4500-

NO,

B.

12~) Selenium:

A)

 Atomic absorption,

 g-aoeous hydride,

 using

the

digestion technique set forth

 in the method:

i)

 ASTM D3859-S-4~.~A,or

ii)

Standard

Methods:

Method

3114_B;

or.

~i.

 Inductively—coupled plasma—mass spectrometry:

 U.S.

EPA Environmental Metals Methods:

 Method 200.8.

~J.

 Atomic

 absorbtion,

 platform furnace technique:

 U.S.

EPA Environmental Metals Methods:

 Method 200.9.

~Q)

 Atomic absorption, graphite furnace technique4, adding

2rnL-of 30

 hydrogen pcronidc—(H~G~)and an appropriate

concentration of nickel nitrate hoxakydrato

(UiN02.—6~0) to

the-

sample-s

matri~c-modifier:

i-)-

UCEPA

Inorganic

Hethodo~:

Hcthoci

~‘u.-~.-

U)

 ASTM D3859—9~8.2.~B,or

iii)

 Standard Methods:

 Method 3113_B.

1~)

 Thallium:

A)

 Atomic absorption,

 furnace-technique,

 using the

diceptign technisuc set

 forth in the fnethod~I

‘J—~

‘~

121

d Mcthodo-

 Method 3113;

B)

 Atomio absorption platform fu~naootech

the digootion technique- cot forth in th

ut~L~A

1~nvLronmontai.

riciaiu

ne-~nous”:

~e~no-u

~uu.~

~

Inductively—coupled p1asma—M~assspectrometry:

~

EPA Environmental Metals Methods:

 Method 200.8.

BOARD MOTE.

 -Derived from 40 ~Ffl 141.23(k)(1) -(1~2

and 40 CFR

 141.23- (k)(4),

 as added

a~ 57

Fad.

 Rag.

3lg3~g-4p (July

 17, 19~2).

 In promulgating

tho

~hace

rules,

TJ.C.

 EPA ercatco

 a new tabic of analytical

mcthod~at 40

 141.23(k) (4)

 that -would

duplicate

the methods sot

 f-orth at

 40 CFR 141.23(k) (1) except

that U.S.E?A updated and revised several of the

methods.

 The B~oardhac

 comb-in-ed~the

 two federal

tables, using the version

each

method

~sct

forth

the Phaoc V

 rules- whore the methods oct forth

confliot.

Atomic absorption, platform furnace technique:

 U.S.

EPA Environmental Metals Methods:

 Method 200.9.

)~1).

 Lead:

~J.

 Atomic absorbtion,

 furnace technique:

.U

 ASTM 03559—90

D,

or

L~J.

 Standard Methods:

 Method

3113

8.

~j

 Inductively—coupled plasma—mass spectrometry:

 U.S.

EPA Environmental Metals Methods:

 Method 200.8.

gj.

 Atomic absorbtion, platform furnace technique:

 U.S.

EPA Environmental Metals Methods:

 Method 200.9.

fl)~

 Copper:

 Atomic absorbtion, furnace technique:

~

 ASTM 01688—90

C,

or

jj).

 Standard Methods:

 Method 3113

B.

~j.

 Atomic abaorbtion, direct aspiration:

it

 ASTM 01688—90

A,

or

jjJ

 Standard Methods:

 Method 3111

B.

Inductively-coupled plasma:

fl

 U.S. EPA Environmental Metals Methods:

 Method

200.7,

or

iLl

 Standard Methods:

 Method 3120

B.

P1

 Inductively—coupled plasma—mass spectrometry:

 U.S.

EPA Envirnmental Metals Methods:

 Method 200.8.

122

~j.

Atomic

absorbtion,

platform

 furnace technique:

 U.S.

EPA Environmental Metals Methods:

 Method 200.9.

~j

 Electrometric:

LI

 U.S. EPA Inorganic Methods:

 Method 150.1,

jfl.

 ASTM 01293—84,

or

iii)

 Standard Methods:

 Method 4500—H4

B.

~J.

 U.S.

 EPA Inorganic Methods:

 Method 150.2.

~j

 Conductivity:

 Conductance:

~j.

 ASTM 01125—91

A,

or

~

 Standard Methods:

 Method 2510

B.

2Q1

 Calcium:

~j

 EDTA titrimetric:

fl

 ASTM 0511—93 A,

or

£11

 Standard Methods:

 Method 3500-Ca

0.

.~1

 Atomic absorbtion,

 direct aspiration:

Li.

 ASTM

0511—93

 B, or

jjj

 Standard Methods:

 Method 3111

B.

~

 Inductively—coupled plasma:

 U.S. EPA Environmental

 Metals Methods:

 Method

2~.7,

or

jjJ

 Standard Methods:

 Method 3120

B.

2JJ.

 Alkalinity:

~j.

 Titrimetric:

it

 ASTM 01067-92

B,

or

jfl.

 Standard Methods:

 Method 2320

B.

~

 Electrometric

 titration:

 USGS Methods:

 Method I—

1~30—85.

221

 Orthophosphate

 (unfiltered, without digestion or

hydrolysis):

~j

 Automated colorimetric,

 ascorbic acid:

Li.

 U.S. EPA Environmental

 Inorganic Methods:

Method 365.1,

or

LiJ

 Standard Methods:

 Method 4500-P F.

123

~J.

 Single reagent colorimetric, ascorbic

 acid:

jj.

 ASTM 0515-88 A, or

iLL

 Standard Methods:

 Method 4500—P B.

~J.

 Colorimetric, polyphosphomolybdate:

 USGS Methods:

Method 1—1601—85.

P1

 Colorimetric, automated-segmented

 flow:

 USGS Methods:

Method

1—2601—90.

~J

 Colorimetric, automated discete:

 USGS Methods:

Method 102598—85.

fi

 Ion Chromatography:

L~

 U.S. EPA Environmental

 Inorganic Methods:

Method 30O.O~

~W.

 ASTM 04327—91,

or

iii)

 Standard Methods:

 Method 4110.

2.~i.

 Silica:

~j

 Colorimetric, molybdate blue:

 USGS Methods:

 Method

1—1700—85.

~1

 Colorirnetric, automated—segmented

 flow:

 USGS Methods:

Method 1—2700—85.

QJ.

 Colorimetric:

 ASTM 0859—88.

P1

 Molybdosilicate:

 Standard Methods:

 Method 4500—Si D.

~i.

 Heteropoly blue:

 Standard Methods:

 Method 4500—Si B.

fi

 Autometed method for molybdate—reactive silica:

 Standard Methods:

 Method 4500—Si

F.

QJ.

 Inductively-coupled plasma:

L~

 U.S. EPA Environmental Metals Methods:

 Method

200.7, or

iLl

 Standard Methods:

 Method 3120

B.

liJ.

 Temperature:

 thermometric:

 Standard Methods:

 Method 2550

B.

Z~1

 Sodium:

~

 Inducively—coupled plasma:

 U.S. EPA Environmental

Metals Methods:

 Method 200.7.

~J.

 Atomic absorbtion, direct aspiration:

 Standard

Methods:

 Method 3111

B.

Arocnw.

tellowing

2+

124

Atomic

 absorption~, Iurnac

Methods:

 Method 206.2r

—Atomic

aboorotion, aaoeou-

A)

 UCEI’A Inorganic Met

B)

 ASTM Q2972-888,

0)

 Ctandard Methodse-

i)

 Method 30Th

~—

‘i—.

1..

D

 UCC-C

 1—1062

 85,-

3)

 Epeotrophotornotri

—

rir~t1n~

r—...~...

d-iethyldithi

C)

 Ctandard Hethods~ Method 3078;

or

4)

 Inductively

 coupi-od plasma arc furnace,

 ICP Method 200.7,

as

supplemented by appendiu 200.7A.

BOAflD NOTE:

 Derived

 from

4-0

 CFfl 141.23(k)(2)

 (1992).

o)

 Fluoride.

 Analyses for fluoride must be conducted using one of

the- following methodat

1+

A)

 UCEPA Inorganic Methods.

 Method 340.1,

B1

 ASTH 01179—72A.

or

to “4l3A ann

‘131\ and

A13C,

B)-

 A~TM01179

 72B,

or

C)

 Ctandard Met-beds,

 Ziothod 413Bp-

Automated Alisarin fluoride blue, with- distillation

3)

-(oomplexono)

A)

 USEPA Inorgani-e Methods.

 Method 340.3,

B)

 Standard Methods.

 Method 413E,

or

C)-

 Technicon Methpdpt

 Method

 129 7lWj—or

C’)-

 8ta~dard

Methodot

125

fl&X.W1~TLS

fl~

~..

ive-

. .—

.— S &‘.~~S

Method 380—7SWB--.

BOARD NOTE.

 Derived from

 40 CFR 141.23k)(3)

 (1992)-.-

d~)

 Sample collection for antimony,

 asbestos,

 barium, beryllium,

cadmium,

 chromium,

 cyanide,

 fluoride,

 mercury,

 nickel, nitrate,

nitrite,

 selenium,

 and thallium pursuant to Sections 611.600

through

 611.604 must be conducted using

 the following sample

preservation,

 container and maximum holding time procedures:

1)

 Antimony:

A)

 Preservative:

 Concentrated nitric

 acid to pH

 less

than

2.

 If nitric acid cannot be used because of

shipping restrictions,

 the sample may initially be

preserved by icing and immediately shipping

 it to

the

laboratory.

 Upon receipt

 in the laboratory,

the

sample must be acidified with concentrated nitric acid

to pH less than

2.

 At the time of sample analysis,

the sample container must be thoroughly rinsed with

1:1 nitric acid;

 washings must be added to the sample.

B)

 Plastic or glass

 (hard or soft).

C)

 Holding time:

 Samples must be analyzed

 as soon after

collection as possible,

but

 in any event within

6

months.

2)

 Asbestos:

A

 Preservative:

 Cool to 4°C

B)

 Plastic or glass

 (hard or soft).

3)

 Barium:

A)

 Preservative:

 Concentrated nitric acid to pH less

than

2.

If

 nitric acid cannot be used because of

shipping restrictions,

 the sample may initially be

preserved by icing and immediately shipping

it

 to the

laboratory.

 Upon receipt

 in the

 laboratory, the

sample must be acidified with concentrated nitric acid

to pH less than

2.

 At the time of sample analysis,

the sample container must be thoroughly rinsed with

1:1 nitric acid; washings must be added to the sample.

B)

 Plastic or glass (hard or soft).

C)

 Holding time:

 Samples must be analyzed as soon after

collection as possible,

 but in any event within

6

months.

Beryllium:

A)

 Preservative:

 Concentrated nitric acid to pH less

than

2.

If

 nitric acid cannot be used because of

shipping restrictions,

 the sample may initially be

preserved by icing and immediately shipping

 it to the

laboratory.

 Upon receipt

 in the laboratory, the

sample must be acidified with concentrated nitric acid

to pH less than

2.

 At the time of sample analysis,

126

the sample container must be thoroughly rinsed with

1:1 nitric

 acid; washings must be added to the sample.

B)

 Plastic or glass

 (hard or soft).

C)

 Holding time:

 Samples must be analyzed

 as soon after

collection as possible,

but

 in any event within

6

months.

5)

 Cadmium:

A)

 Preservative:

 Concentrated nitric acid to pH less

than

2.

 If nitric acid cannot be used because of

shipping restrictions, the sample may initially be

preserved by icing and immediately shipping it to the

laboratory.

 Upon receipt in the

 laboratory,

the

sample must be acidified with concentrated nitric acid

to pH less than

2.

 At the time of sample analysis,

the sample container must be thoroughly rinsed with

1:1 nitric acid; washings must be added to the sample.

B)

 Plastic or glass

 (hard or soft).

C)

 Holding time:

 Samples must be analyzed as soon after

collection

 as possible,

but

 in any event within

6

months.

6)

 Chromium:

A)

 Preservative:

 Concentrated nitric acid to pH less

than

2.

 If nitric acid cannot be used because of

shipping

restrictions,

the

 sample may initially be

preserved by icing and immediately shipping it

 to the

laboratory.

 Upon receipt

 in the laboratory,

the

sample must be acidified with concentrated nitric acid

to pH less than 2.

 At the time of sample analysis,

the sample container must be thoroughly rinsed with

1:1 nitric acid;

 washings must be added to the sample.

B)

 Plastic or glass

 (hard or soft).

C)

 Holding time:

 Samples must be analyzed as soon after

collection as possible,

 but in any event within

6

months.

7)

 Cyanide:

A)

 Preservative:

 Cool to 4°C. Add sodium hydroxide to

pH

12.

 See the analytical methods

 for information

on sample preservation.

B)

 Plastic or glass

 (hard or soft).

C)

 Holding time:

 Samples must be analyzed as soon after

collection as possible,

 but in any event within

14

days.

8)

 Fluoride:

A)

 Preservative:

 None.

B)

 Plastic or glass

 (hard or soft).

127

C)

 Holding time:

 Samples must be analyzed as soon after

collection

 as possible,

but

 in any event within

1

month.

9)

 Mercury:

A)

 Preservative:

 Concentrated nitric acid to pH less

than

2.

If

 nitric acid cannot be used because of

shipping

restrictions,

 the sample may initially be

preserved by icing and immediately shipping it to the

laboratory.

 Upon receipt

 in the laboratory, the

sample must be acidified with concentrated nitric acid

to pH less than

2.

 At the time of sample analysis,

the sample container must be thoroughly rinsed with

1:1 nitric acid; washings must be added to the sample.

B)

 Plastic or glass

 (hard or soft).

C)

 Holding time:

 Samples must be analyzed as soon after

collection as possible,

but

 in any event within

28

days.

10)

 Nickel:

A)

 Preservative:

 Concentrated nitric acid to pH less

than

2.

 If nitric acid cannot be used because of

shipping restrictions,

 the sample may initially be

preserved by icing and immediately shipping

it

 to the

laboratory.

 Upon receipt

 in ~he laboratory,

the

sample must be acidified with concentrated nitric acid

 to pH less than 2.

 At the time of sample analysis,

the sample container must be thoroughly rinsed with

1:1 nitric acid; washings must be added to the sample.

B)

 Plastic or glass

 (hard or soft.

C)

 Holding time:

 Samples must be analyzed as soon after

collection as possible,

but

 in any event within

6

months.

11)

 Nitrate,

 chlorinated:

A)

 Preservative:

 Cool to 4°C.

B)

 Plastic or glass

 (hard or

 soft).

C)

 Holding time:

 Samples must be analyzed as soon after

collection as possible,

but

in

 any event within 28

days.

12)

 Nitrate,

 non—chlorinated:

A)

 Preservative:

 Concentrated sulfuric acid to pH less

than

2.

B)

 Plastic or glass

 (hard or soft.

C)

 Holding time:

 Samples must be analyzed as

 soon after

collection as possible,

 but in any event within

14

days.

13)

 Nitrite:

128

A)

 Preservative:

 Cool to 4°C.

B)

 Plastic or glass

 (hard or soft).

C)

 Holding time:

 Samples must be analyzed as soon after

collection as possible,

but

 in any event within 48

hours.

14)

 Selenium:

A)

 Preservative:

 Concentrated nitric acid to pH less

than 2.

If

 nitric acid cannot be used because of

shipping restrictions,

 the sample may initially be

preserved by icing and immediately shipping

 it to the

laboratory.

 Upon receipt

 in the laboratory,

the

sample must be acidified with concentrated nitric acid

to pH less than

2.

 At the time of sample analysis,

the sample container must

 be thoroughly rinsed with

1:1 nitric acid; washings must be added to the sample.

B)

 Plastic or glass

 (hard or soft).

C)

 Holding time:

 Samples must be analyzed as soon after

collection as possible,

but

 in any event within

6

months.

15)

 Thallium:

A)

 Preservative:

 Concentrated nitric

 acid to pH less

than

2.

 If nitric acid cannot be used because of

shipping restrictions,

 the sample may initially be

preserved by icing and immediately shipping

 it to the

laboratory.

 Upon receipt

 in the laboratory,

the

sample must be acidified with concentrated nitric acid

to pH less than 2.

 At the timeof sample analysis,

the sample container must be thoroughly rinsed with

1:1 nitric acid; washings must be added to the sample.

B)

 Plastic or glass

 (hard or soft).

C)

 Holding time:

 Samples must be analyzed as soon after

collection as possible,

but

 in any event within

6

months.

BOAflD NOTE:

 Derived from 40 CFR 141.23(h)(4)

 (1992)

as amended and renumbered to 40 CFR 141.23(k) (5)

at

57

i-eu.

 Rccr.

e~)

 Analyses under this Subpart must be conducted by laboratories that

received approval

 from rJ.S~EPAor the Agency.

 Laboratories may

conduct sample analyses

 for antimony,

 beryllium,

 cyanide,

 nickel,

and thallium under provisional

 certification granted by the Agency

until January

1,

 1996.

 The Agency shall certify laboratories to

conduct analyses for antimony,

 asbestos,

 barium,

 beryllium,

cadmium, chromium,

 cyanide, fluoride,

 mercury,

 nickel, nitrate,

nitrite,

 selenium,

 and thallium if the laboratory:

1)..

 Analyzes performance evaluation samples, provided by the

Agency pursuant

 to 35 Ill.

 Adm. Code 183.125(c),

 that

include

those

 substances at levels not

 in excess of levels

expected

 in drinking water;

and

129

2)

 Achieves quantitative results on the analyses within the

following acceptance limits:

A)

 Antimony: ±30

 at greater than or equal. to 0.006

mg/L.

BOARD NOTE:

 40 CFR 141.23(k)(~63) (1994),

as

renumbered

 from paragraph ~k)(S) and amended at 40 CFR

31840

 (July

17,

 1992),

 actually lists

 “6130”

 as the

acceptance limit

 for antimony.

 The Board corrected

this to

“±

30”

 based on the discussion at 57 Fed.

Beg.

31801

 (July

17,

 1992).

B)

 Asbestos:

 2 standard deviations based on study

statistics.

C

 Barium: ±15

 at greater than or equal to 0.15 mg/I..

0)

 Beryllium: ±15

 at greater than or equal to 0.001

mg/I..

B)

 Cadmium:

±

20

 at greater than or equal

 to 0.002

mg/L.

±15

 at greater than or equal to 0.01

±

25

 at greater

 than or equal to 0.1 mg/i.

±

10

at

 1 to

 10 mg/L.

±30

 at greater than or equal to 0.0005

±15

 at greater than or equal to 0.01 mg/I..

±10

 at greater than or equal to 0.4 mg/L.

±15

 at greater than or equal to 0.4

 mg/I..

±20

 at greater than or equal to 0.01

N)

 Thallium: ±30

 at greater than or equal

 to 0.002

mg

/

I..

BOARD NOTE:

 OSubsection

(e)

 is derived

 from the table

40 CFR 141.23(k)(&2)

 (1992~), as amended and

renumbered to 40 CFR 141.23(k) (6)

 at 5~2.Fed.

 Reg.

31840 4162466

 (July l7Dec.

 5, 199~), and the

discussion at

 57 Fed. Beg.

31809

 (July

17.

 1992).

Section 611.609

 is derived from 40 CFR 141.23(k)

(1994),

 as amended at 59 Fed.

 Beg.

 62466 (Dec.

5,

1994).

1)

 Bample preservation,

 turbidity measurement,

And digestion.

For

all analytical methods marked-with an asterisk

()

 in subsection

(a)

 abovc,

 t-ho

 following must be donc~

as must be ~reoervod ~zithconcentrated nitric ~cid

F)

 Chromium:

mg/L.

0)

 Cyanide:

H)

 Fluoride:

I)

 Mercury:

mgi I..

Nickel:

K)

 Nitrate:

I.)

 Nitrite:

H)

 Selenium:

mg/I..

~--

 The sampi

2)-

130

1)

 Turbidity must be -mo-asurod on—the preserved oampl

immediately

 prl.or to analysis;

and

inc sample must so analysed

 a-s Ioilowoi-

A)

 Directly for total metals

 if the turbidity

is

 less

AXtCr

aigcs

as defincd

tion, uQ~ngtne totsi

in the appli.-cablc met

recoverasic

tccnniquc

hod,

 if the turbidity

10

 1 NTU or greater.

BOARD NOTE:

 Derived from

 40 CFR 141.23(k)(4)-,-

footnote

6,

 as added at

 57 Fed.

 fleg.

31340

 (July

17,

-92).-

(Source:

 Amended at 19

 Ill. Reg.

________,

 effective

 _____________________

Section 611.612

 Monitoring Requirements

 for Old Inorganic MCLs

a)

 Analyses for the purpose of determining compliance with the old

inorganic MCLs of Section 611.300 are required as follows:

1)

 Analyses

 for all CWSs utilizing surface water sources must

be repeated

at

 yearly intervals.

2)

 Analyses

 for all CWSs utilizing only groundwater

 sources

must be repeated

 at three-year

 intervals.

3)

 This subsection corresponds with 40 CFR 141.23(1) (3)

(l99r3~),which requires monitoring

 for the repealed old

 MCI.

for nitrate at

 a frequency specified by the state.

The

Board has followed the U.S. EPA

 lead and repealed that old

MCI..

 This statement maintains structural consistency with

U.S. EPA rules.

4)

 This subsection corresponds with 40 CFR 141.23(1) (4)

(199~4),which authorizes the state to determine compliance

and

 initiate enforcement action.

 This authority exists

through the authorization of

 the Act,

 not through

 federal

rules.

 This statement maintains structural consistency with

U.S.

 EPA rules.

b)

 If the result of an analysis made under subsection

(a)

 above

indicates that the level of any contaminant listed in Section

611.300 exceeds the old MCL,

 the supplier shall report to the

Agency within

 7 days and initiate three

additional

analyses

the

same

sampling

point

within

one

 month.

When the average of four analyses made pursuant to subsection

(b)

above, rounded to the same number of significant figures as the

old HCL for the substance in question,

 exceeds the old MCL, the

supplier shall notify the Agency and give notice to the public

pursuant to Subpart T of this Part.

 Monitoring after public

notification must be at a frequency designated by the Agency by

a

 SEP granted pursuant to Section 611.110 and must continue until

the old MCI. has

 not been exceeded in two successive samples or

until

 a different monitoring schedule becomes effective as a

condition to a variance,

 an adjusted standard,

 a site specific

rule,

enforcement

action,

another

SEP

granted

pursuant

Section

 611.110.

131

This

 subsection corresponds with 40 CFR 141.23(o)

 (l99~), which

pertains to monitoring

 for the repealed old

 MCI. for nitrate.

The

Board has followed

 the U.S. EPA action and repealed that old

 MCI..

This

 statement maintains structural

 consistency with U.S.

EPA

rules.

e)

 This subsection corresponds with 40 CFR 141.23(p)

 (l99~), which

pertains to the use of existing data up until

 a date

 long since

expired.

 The Board did not adopt the original provision in BBS-

26.

 This statement maintains

 structural consistency with U.S. EPA

rules.

f)

 Analyses conducted to determine compliance with the old MCLs of

Section 611.300 must be made in accordance with the following

methods, incorporated by reference

 in Section 611.102.

1)

 Arsenic:

A)

Hetnos

 u#.—oo~-’.,

or

B)

 Ctandard Hctno~:

..,

or

ii)

 Method

 307fl;

UCCE Methods, Method I-lO6’~—~

-U.C.

 EFA Inorganic Methods

i)

 Method 206.2,

or

ii)

 Method 206.3; or

~j)

 Fluoride:

 The methods specified in Section 611.611(c)

 shall

apply for the purposes of this Section.

3)

 Cyanide,

 until

 the cyaiu.uo

zn~J..

OL

 ~cutJ.Ofl

 ~..LJ..JUU

1.0

nO

lonoer effective:

Standard Methods,

 Method 4600—CM

D,

B,-

F,

 or C;

u.s.

 i~ri~

inoraan~

~et

335-.~3or

ASTM

Mcthod~ D2036—89A

4~)

 Iron:

A)

 Standard Methods:—Mct

 Method 3111

8,

JJj.

 Method 3113

B.

iii)

 Method 3120

B.

132

B)

 U.S. EPA InorganicEnvironmental Metals

 Methods:

i)

 Method 236.1200.7,

or

ii)

 Method 236.2200.9.1 or

C)

 ICP Method 200.7,

as-

 upplemontod by appt~ndin200.7A-..-

5~)

 Manganese:

A-)

 2\~THt Method D858—84

BA)

 Standard Methods:

 Method

 303A,-

 Method 3111

B,

J~fl

 Method 3113

B,

or

iii)

 Method 3120

B.

G~)

U.S.

EPA

InorganicEnvironmental

Metals

Methods:

i)

 Method 243.1,

 or200.7,

ii)

 Method 243.2200.8,i- or

iii)

 Method 200.9.

0)

 IC-P Method

 200.7,- as supplemented by cippcndbc

64)

 Zinc:

A)

 Standard Metnocs:

 Method

3u~ii;

or

Jj~

 Method 3111

8,

or

iLl

 Method 3120

B.

B)

 U.S. EPA ~norganicEnvironrnental Metals Methods:

i)

 Method 289.1200.7,

or

ii)

 Method 289.2200.8.

BOARD NOTE:

 The provisions of subsections

(a)

through

 (f)-~-~-above derive from 40 CFR

141.23(1) through

 (qp)

 (l99~3~),as amended

at

59

Fed.

 Rep.

62466

 (Dec.

5,

 1994).

 The Board has

deleted

several

analytical

 methods codified by

U.S. EPA e~removedand reserved 40 CFR 141.23(g)

(formerly 40 CFR 141.23(f))

 because the HCLo of

CFR

111.11

expired

for

those

contaminants

Ju~ly—30and November

30,

 1992at 59

 Fed.

 Req.

62466

 (Dec.

5,

 1994).

 Subsection

 (f)(2)

 above

relates to

 a contaminant for which U.S. EPA

specifies

a

 MCI., but for which it repealed the

analytical method.

 Subsections (f)(4~)through

(f)(6~)above relate exclusively to additional

state

requirements.

 The Board retained

subsections

 (f)(l),

 (f)(3),

 and (f)(4) to set

forth methods

 for the inorganic contaminants

for

which there is

 a state—only

 MCI..

 The methods

133

specified

 are those set forth in

40

CER

143.4(b),

 as amended at

 59 Fed.

 Req. 62471

 (Dec.

5,

 1994),

 for secondary MCLs.

 The predecessor

to subsections

(a)

 through

 (e) above were

formerly codified

as

 Section 611.601.

The

predecessor to subsection

(f)

 above was formerly

codified as Section 611.606.

(Source:

 Amended at

19

 Ill.

 Beg.

_______,

 effective

_____________________

Section 611.630

 Special Monitoring for Sodium

a)

 CWS suppliers

 shall collect

 and analyze one sample per plant at

the entry point of the distribution system for the determination

of sodium concentration levels;

 samples must be collected and

analyzed annually for CWSs utilizing surface water sources

in

whole or in part,

 and at least every three years for CWSs

utilizing solely groundwater sources. The minimum number of

samples required to be taken by the supplier

 is based on the

number of treatment plants used by the

 supplier, except that

multiple wells drawing raw water

 from a single aquifer may,

 with

the Agency approval,

 be considered one treatment plant

for

determining the minimum number of samples.

 The Agency shall

require the supplier to collect

and

 analyze water samples

for

sodium more frequently

in

 locations where the sodium content

is

variable.

b)

 The CWS supplier shall report

 to the Agency the results of the

analyses

 for sodium within the first

10

 days of the month

following the month in which the sample results were received or

 within the first

 10 days following the end of the required

monitoring period as specified by SEP, whichever of these

is

first.

 If more than annual sampling

 is required the supplier shall

report the average sodium concentration within 10 days of the

month following the month in which the analytical results of the

last sample used for the annual average was received.

c)

 The CWS supplier shall

 notify the Agency and appropriate

 local

public health officials of the sodium levels by written notice by

direct mail within three months.

 A copy of each notice required to

be provided by this subsection must be sent to the Agency within

10 days of its issuance.

d)

 Analyses

 for sodium must be performed by the

following

methods,

incorporated by rcf~-~--~ Cection 611.l02tconducted as directed

in Section

 611.611(a),

Stanuarci Methods, Methods

.~u anu

 ~uA,

 tiamo—ph

method

A)

 Method 273.1,

 ~.tomicAbsorption

—

 Direct Aspiration;

e~

Method

273.2,

Atomio

 Absorption

—

 Crap-hitc Furnace;

or

3)

 ACTM Method D-1425

64.

BOARD NOTE:

 Derived from 40 CFR

 141.41

(1992-4).

amended

at

59

 Fed.

 Req.

62470

 (Dec. 5~ 1994).

134

(Source:

 Amended at

19

 Ill. Beg.

 effective

______________________

SUBPART 0:

 ORGANIC MONITORING AND ANALYTICAL REQUIREMENTS

Section 611.641

 Old MCLs

a)

 An analysis of substances

 for the purpose of determining

compliance with the old MCL5 of Section

 611.310 must be made

as

follows:

1)

 The Agency shall,

 by SEP, require CWS

 suppliers utilizing

surface water sources to collect samples during the period

of the year when contamination by pesticides

 is most likely

to occur.

 The Agency shall require the supplier to repeat

these analyses at least

 annually.

80MW

 NOTE:

 This a~~~cs

 also to additional Ctate

requirements.

2)

 The Agency shall,

 by SE?,

 require CWS suppliers utilizing

only groundwater sources to collect samples at least once

every

three

years.

BOAflD NOTES

 This applies also to addltLonal

 Ctate

r~-~,l1

 ircmcnto.

b)

 If the result of

 an analysis made pursuant to subsection

(a)

indicates that

the

 level of any contaminant exceeds its old

 MCI.,

the CWS supplier shall report

 to the Agency within

 7 days

and

initiate three additional analyses within one month.

c)

 When the average of four analyses made pursuant

 to subsection

 (a),

rounded to the same number of significant figures

 as the

 MCI. for

the substance in question,

 exceeds the old

 4CL,

 the CWS supplier

shall report to the Agency and give notice to the public pursuant

to Subpart T.

 Monitoring after public notification must be at

a

frequency designated by the Agency and must continue until the

 MCI.

has

 not been exceeded in two successive samples or until

a

monitoring schedule as

 a condition to

 a variance,

 adjusted

standard or enforcement action becomes effective.

Analysis

 made to determine compliance with the old MCLs of Section

611.310 must be made in accordance with the appropriate methods

specified

 in Section 611.648(1),

BOARD NOTE:

 ~This provision now applies only to state—only MCLs.

It was formerly derived from 40 CFR 141.24(a)

 through (d~) ~1991)~

which U.S. EPA removed and reserved at

59

 Fed.

 Req.

34323

 (July

1,

1994).

(Source:

 Amended at

 19 Ill.

 Beg.

________,

 effective

_____________________)

Section

611.645

 Analytical Methods for Old MCisorqanic Chemical Contaminants

Analyoio made to determine compliance ~iiththe old MCLo

 of Lection 611.310

mh1.~$.

 i---

r~kI~

n

accordance with the approsriate methods

~.Fir~

4ri

 r—~-F---~

611.648(l).Analysis for the Section 611.311(a) VOCs under Section

611.646,

the

Section_611.311(c) SOC5 under Section 611.648,

 and the Section 611.310 old

organic MCLs under Section

 611.641

 shall be conducted using the methods listed

in thia Section or by equivalent methods

 as approved by the Agency.

All

methods are from U.S. EPA Organic Methods unless otherwise indicated.

135

Volatile Organic Chemical Contaminants

 (VOCs’g:

Benzene

Carbon tetrachloride

Chlorobenzene

1,2—Dichlorobenzene

1,

4—Dichlorobenzene

1,2—Dichloroethane

cis—Dichloroethylene

trang—Dichioroethylene

Dichloromethane

1,2—Dichloropropane

Ethylbenzene

Styrene

Tetrachloroethylene

1, 1,1—Trichloroethane

Trichloroethvlene

Toluene

1,2. 4—Trichlorobenzene

1. 1—Dichloroethylene

1, 1,2—Trichloroet bane

Vinyl chloride

Xylenes

 (total)

Synthetic Organic Chemical Contaminants (SOCs):

2,3. 7,8—Tetrachlorodibenzodioxin

 (2,3,7,8—TCDD

or dioxin1

2,4—D

2,4,5—TI’

(Silvex)

Alachlor

Atrazine

502.2,

 524.2

502.2,

 524.2,

551

502.2,

 524.2

502.2,

 524.2

502.2,

 524.2

502.2,

 524.2

502.2,

 524.2

502.2,

 524.2

502.2,

 524.2

502.2,

 524.2

502.2,

 524.2

502.2,

 524.2

502.2,

 524.2.

551

502.2,

 524.2,

551

502.2,

 524.2,

551

502.2,

 524.2

502.2,

 524.2

502.2,

 524.2

502.2,

 524.2

502.2,

 524.2

502.2,

 524.2

Dioxin and Furan

Method 1613

515.1,

 515.2,

555

515.1,

 515.2,

555

505*,

 507,

 508.1,

525.2

505*, 50~, 508.1,

525.2

525.2,

 550,

 550.1

 Benzo(a)twrene

136

Carbofuran

 531.1,

 Standard

Methods:

 Method 6610

Chlordane

 505,

 508,

 508.1,

525.2

Dalapon

 515.1,

 552.1

Di(2—ethylhexyl )adipate

 506,

 525.2

Di(2—ethylhexyl)phthalate

 506,

 525.2

Dibromochloropropane

 (DBCP)

 504.1,

551

Dinoseb

515.1,

515.2,

555

Diquat

 549.1

Endothall

 548.1

Endrin

 505,

 508,

 508.1,

525.2

Ethylene Dibromide

 (EDB)

 504.1,

551

Glyphosate

 547,

 Standard

Methods:

 Method 6651

Heptachlor

 505,

 508,

 508.1,

525.2

Heptachlor Epoxide

 505,

 508,

 508.1,

525.2

Hexachlorobenzene

 505.

 508,

 508.1,

525.2

Hexachlorocyclopentadiene

 505,

 508,

 508.1,

 525.2

Lindane

 505,

 508,

 508.1,

525.2

Methoxychlor

 505,

 508,

 508.1,

525.2

Oxamyl

 531.1,

 Standard

Methods:

 Method 6610

PCBs

 (measured

 for compliance purposes as

 508A

decchlorobiphenyl)

pCBs (qualitatively identified as Araclors)

 505,

508

Pentachiorophenol

515.1,

515.2,

525.2,

555

Picloram

 515.1,

 515.2,

555

Simazine

 505*,

 507,

 508.1,

525.2

137

Toxa~hene

 505,

 508,

 525.2

Total Trihalomethanes

 (TTHMs):

Total Trihalotnathanes

 (TTHMs)

 502.2,

 524.2

State—Only MCLs

 (for which a method

 is not

 listed above):

Aldrin

 505,

 508,

 508.1,

525,2

505,

508

Dieldrin

505.

508,

508.1,

525.2

denotes

that

for

the

particular

contaminant,

nitrogen—phosphorus

detector

should be substituted for the electron capture detector

 in method 505

(or

another approved method should be used)

 to determine araclor, atrazine,

and

simazine

if

 lower detection limits are required.

BOARD NOTE:

 Derived from 40 CFR 141.24(e)

 (19944)as added

at

 59 Fed.

 Req.

62469

 (Dec.

5,

 1994).

(Source:

 Amended at 19

 Ill.

 Reg.

________,

 effective

______________________

Section 611.646

 Phase

I,

 Phase II,

 and Phase V Volatile Organic Contaminants

Monitoring of the Phase

I,

 Phase II,

 and Phase V VOCs

 for the purpose of

determining compliance with the MCL must be conducted as

 follows:

a)

 Definitions.

 As used

 in this Section:

“Detect” and “detection” means that the contaminant

of

interest

 is present at

 a level greater than or equal to the

“detection limit”.

“Detection limit” means 0.0005 mg/L.

BOARD NOTE:

 Derived from 40 CFR

 l41.24(f)(7),

 (f)(11),

(f)(14)(i), and

 (f)(20)

 (199~~-~).This

is

 a “trigger level”

for Phase

Phase

II,

and

Phase

 VOCs

 inasmuch as it

prompts further action.

 The use of the term “detect”

in

this section

 is not intended to include any analytical

capability of quantifying lower

 levels of any contaminant,

or the “method detection limit”.

 Note, however that certain

language at the end of federal paragraph (f)(20)

 is capable

of meaning that the “method detection

 limit”

 is used to

derive the

 “detection limit”.

 The Board has chosen to

disregard that language at the end of paragraph (f)(20)

in

favor of the more direct language of paragraphs

 (f)(7)

and

(1) (11).

“Method detection limit”,

 as used in subsections

(q)

and

(t)

below means the minimum concentration of

 a substance that

can be measured and reported with

percent

confidence

that

the analyte concentration

 is greater than zero and

is

determined from analysis of

 a sample in

 a given matrix

containing the analyte.

BOARD NOTE:

Derived

from

CFR

 136, Appendix

 B (199~).

The method detection limit

 is determined by the procedure

138

set forth in 40 CFR

 136, Appendix

B.

 See subsection

(t)

below.

b)

 Required sampling.

 Each supplier shall take

 a minimum of one

sample at each sampling point

 at the

 times required

 in subsection

(U)

 below.

c)

 Sampling points.

1)

 Sampling points

 for GWS5.

 Unless otherwise provided by SEP,

a GWS supplier shall take at least one

 sample from each of

the following points:

 each entry point that is

representative of each well after treatment.

2)

 Sampling points for SWSs and mixed systems.

 Unless

otherwise provided by SEP,

 a SWS or mixed system supplier

shall sample from each of the following points:

A)

 Each entry point after treatment;

or

B)

 Points in the distribution system that are

representative of each source.

3)

 The supplier shall take each sample at

 the same sampling

point unless the Agency has granted

 a SEP that designates

another location as more representative of each source,

treatment plant,

 or within the distribution system.

4)

If

 a system draws water from more than one source,

 and the

sources are combined before distribution,

 the supplier shall

sample at

 an entry point during periods of normal operating

conditions when water is representative

 of all sources being

used.

BOARD NOTE:

 Subsections

(b)

and

(C)

 above derived from 40

CFR l41.24(f)(1) through

 (f)(3)

 (19934).

d)

 Each CWS and NTNCWS supplier

 shall take four consecutive quarterly

samples

 for each of the Phase

 I VOC5,

 excluding vinyl chloride,

and Phase

 II VOCs during each compliance period, beginning

 in the

compliance period starting

 in the initial compliance period.

e)

 Reduction to annual monitoring

 frequency.

 If the initial

monitoring for the Phase

I,

 Phase

II,

 and Phase

 ‘1

VOCs as allowed

in subsection (r)(1) below has been completed by December

31,

1992,

 and the supplier did not detect any of the Phase

 I VOCs,

including vinyl chloride,

 Phase II,

 or Phase V VOCs,

 then the

supplier shall take one sample annually beginning in the

 initial

compliance period.

f)

 GWS reduction to triennial monitoring

 frequency.

 After a minimum

of three years of annual

 sampling,

 GWS suppliers that have not

previously detected any of the Phase

 I VOC5,

 including

vinyl

chloride,

 Phase II,

Phase

 VOCs

 shall take one sample during

each three—year compliance period.

g)

 A CWS or NTNCWS

supplier

 that has completed the initial round of

monitoring required by subsection

(d)

 above and which did not

detect any of the Phase

 I VOCS,

 including vinyl chloride,

 Phase

II,

 and Phase V VOCs may apply to the Agency for

 a SEP pursuant to

Section 611.110 that releases it from the requirements of

subsection

(e)

or

(f)

 above.

 A supplier that serves

 fewer than

139

3300 service connections may apply to the Agency for

 a SEP

pursuant to Section 611.110 that releases

it

 from the requirements

of subsection

(d)

 above as to 1,2,4—trichlorobenzene.

BOARD NOTE:

 Derived from 40 CFR 141.24(f)(7)

 and. (f)(10)

 (199-34),

and the discussion

at

57

 Fed.

 Beg.

31825

 (July

17,

 1992).

Provisions concerning the term of the waiver appear below in

subsections

(i)

and

(j)

 below.

 The definition of

 “detect”,

parenthetically added to the federal counterpart paragraph is

in

subsection

(a)

 above.

h)

 Vulnerability Assessment.

 The Agency shall consider the

 factors

Section

611.110(e)

granting

 a SEP from the requirements of

subsections

 (d),

 (e),

or

(f)

 above sought pursuant

 to subsection

(g) above.

i)

 A SEP issued to

 a GWS pursuant to subsection

(g)

 above

 is for a

maximum of six years, except

 that a SEP as to the subsection

(d)

above monitoring for l,2,4—trichlorobenzene shall apply only to

 the initial round of monitoring.

 As a condition of

 a SE?, except

as to

 a SEP from the initial round of subsection

(d)

 above

monitoring for 1,2.4—trichlorobenzene,

 the supplier shall,

 within

30 months after the beginning of the period

 for which the waiver

was issued,

 reconfirm its vulnerability assessment required by

subsection

 (h) above and

 submitted pursuant to subsection

(g)

above,

 by taking one sample at each sampling point

 and reapplying

for a SEP pursuant to subsection

(g)

 above.

 Based on this

application, the Agency shall either:

1)

If

 it determines that the PWS meets the standard of Section

611.610(e),

 issue a SEP that reconfirms the prior SEP for

the remaining three-year compliance period of the six—year

maximum term; or,

2)

 Issue a new SEP requiring the supplier to sample annually.

BOARD NOTE:

 This provision does not

 apply to SWS5 and mixed

systems.

j)

 Special considerations

 for SEPs for SWS and mixed systems.

The

Agency

 must determine that

a

SWS

 is not vulnerable

before

issuing

 SEP pursuant to a SWS supplier.

 A SEP

issued to

 a SWs or mixed

 system supplier pursuant to

 subsection

(g)

 above

is

 for a maximum of one compliance

period; and

2)

 The Agency may require,

as

 a condition to

 a SEP

 issued to a

SWS or mixed supplier,

 that the supplier take such samples

for Phase

I,

 Phase

II,

 and Phase V VOCs at such

 a frequency

as the Agency determines are necessary,

 based on the

vulnerability assessment.

BOARD NOTE:

 There

is

 a great degree of similarity between

40 CFR 141.24(f) (7),

 the provision applicable to GWSs, and

40 CFR 141.24(f) (10),

 the provision for SWS8.

 The Board has

consolidated the

 common requirements of both paragraphs

 into

subsection

(g)

 above.

 Subsection

(j)

 above represents the

elements unique to SWSS and mixed systems,

 and subsection

(i) above relates to GWSs.

Although

 40 CFR 141.24(f)(7)

and

(f)(10) are silent

 as to mixed systems, the Board has

included mixed systems with SWSs because this

 best follows

140

the federal scheme for all

 other contaminants.

k)

 If one of the Phase

 I VOCs,

 excluding vinyl chloride,

 Phase

II,

or

 Phase V VOCs is detected in any sample,

 then:

1)

 The supplier shall monitor quarterly for that

 contaminant

at

each sampling point

 that resulted

in

 a detection.

2)

 Annual monitoring.

A)

 The Agency shall grant

 a SEP pursuant to Section

611.110 that allows

 a supplier to reduce the

monitoring frequency to annual at

 a sampling point

if

it determines that the sampling point ~isreliably and

consistently below the

 MCI..

B)

 A request

for

 a SEP must include the following minimal

information:

i)

 For a GWS,

 two quarterly samples.

ii)

 For a SWS or mixed system,

 four quarterly

samples.

C)

 In issuing a SEP.

 the Agency

 shall specify the level

of the contaminant upon which the “reliably and

consistently” determination was based.

 All SEPs that

allow less frequent monitoring based on

 an Agency

“reliably and consistently” determination shall

include

 a condition requiring the supplier to resume

quarterly monitoring pursuant to subsection

 (k)(l)

above

if

 it violates the MCI. specified by Section

611.311.

3)

 Suppliers that monitor annually shall monitor during the

quarter(s)

 that previously yielded the highest analytical

result.

4)

 Suppliers that do

 not detect

 a contaminant at

 a sampling

point in three consecutive annual samples may apply to the

Agency for a SEP pursuant to Section 611.110 that allows

it

to discontinue monitoring for that contaminant

 at that

point,

as

 specified

 in subsection

(g)

 above.

5)

 A GWS supplier that has detected one or more of the two—

carbon contaminants listed in subsection (k)(5)(A)

 below

shall monitor quarterly

 for vinyl chloride as described in

subsection

 (k)(5)(B)

 below,

 subject to the limitation of

subsection

 (k)(S)(C)

 below.

A)

 Two—carbon contaminants

 (Phase

 I or

 II VOC):

l,2—Dichloroethane

 (Phase

I)

l,l—Dichloroethylene

 (Phase

I)

cis—1, 2—Dichloroethylene

 (Phase

II)

trans—1,2—Dichloroethylene

(Phase

LI)

Tetrachloroethylene

 (Phase

II)

l,l,1—Trichloroethylene

 (Phase

I)

Trichioroethylene

 (Phase

I)

B)

 The supplier shall sample quarterly for vinyl chloride

at each sampling point at which

 it detected one or

141

more of the two—carbon contaminants

 listed in

 subsection

 (k)(5)(A)

 above.

C)

 The Agency shall grant

 a SEP pursuant

 to Section

611.110 that allows the supplier to reduce the

monitoring frequency

 for vinyl chloride at any

sampling point to once

 in each three—year compliance

period if

 it determines that the supplier has not

detected

vinyl

 chloride

 in first sample required by

subsection (k)(5)(B)

 above.

1)

 Quarterly monitoring following

 MCI. violations.

1)

 Suppliers that violate an MCL for one of the Phase

 I VOCs,

including vinyl

 chloride,

 Phase

II,

 or Phase V VOCs,

as

determined by subsection

(0)

 below,

 shall monitor quarterly

for that contaminant,

 at the sampling point where the

violation occurred, beginning the next quarter after the

violation.

2)

 Annual monitoring.

A)

 The Agency shall grant

 a SEP pursuant

 to Section

611.110 that allows

 a supplier to reduce the

monitoring frequency to annually

if

 it determines that

the sampling point is reliably and consistently below

the

 MCI..

B)

 A request for

 a SEP must include the following minimal

information:

 four quarterly samples.

C)

 In issuing

 a SEP, the Agency shall specify the level

of the contaminant upon which the “reliably and

consistently” determination was based.

 All SEt’s

 that

allow less frequent monitoring based on an Agency

“reliably and consistently” determination shall

include a condition requiring the supplier to resume

quarterly monitoring pursuant to subsection (l)(l)

above

if

 it violates the MCI. specified by Section

611.311.

D)

 The supplier shall monitor during the quarter(s) that

previously yielded the highest analytical result.

m)

 Confirmation samples.

 The Agency may issue a SEP pursuant to

Section 610.110 to require

 a supplier to use a confirmation sample

for results that it finds dubious for whatever reason.

 The Agency

must state its reasons for issuing the SEP

 if the SEP

 is Agency—

initiated.

1)

If

a supplier detects any of the Phase

 I, Phase

II,

 or Phase

V VOCs in a sample, the supplier shall take

 a confirmation

sample as soon

 as possible,

 but no later than

14

 days after

the

supplier

receives

notice

 of the detection.

2)

 Averaging

 is as specified in subsection

(0)

 below.

3)

 The Agency shall delete the original or confirmation sample

determines

that

sampling

error

occurred,

which

case the confirmation sample will replace the original or

confirmation

sample.

142

n)

 This subsection corresponds with

 40 CFR 141.24(f)(l4),

 an optional

U.S.

 EPA provision relating to compositing of samples that U~S~

EPA does not require for

 state programs.

 This statement maintains

structural consistency with U~S~EPArules.

o)

 Compliance with the MCLs

 for the Phase

I,

 Phase

II,

 and Phase V

VOCs must be determined based on the analytical results obtained

at each sampling point.

1)

 For suppliers that conduct monitoring at

 a frequency greater

than annual, compliance is determined by

 a running annual

average of all samples taken at each sampling point.

A)

 If the annual

 average of

 any sampling point

 is greater

than the MCL, then the supplier

 is out of compliance.

B)

 If the initial sample or

 a subsequent

 sample would

cause the annual average to exceed the

 MCI., then the

supplier

 is out of compliance immediately.

C)

 Any samples below the detection

 limit

 shall

 be deemed

 as zero for purposes

 of determining

 the annual

average.

2)

 If monitoring

is

 conducted annually,

 or less frequently,

the

supplier

 is out

of

 compliance

 if the level

of

 a contaminant

at

any

 sampling point

is

 greater than the MCL.

If

a

confirmation sample

 is taken, the determination of

compliance

 is based on the average of two

 samples.

3)

 when the portion of the distribution system that

is

 out of

compliance

 is separable from other parts of the distribution

system and has no interconnections,

 the supplier may issue

the public notice required by Subpart

 T of this Part only to

persons served by that portion of the distribution system

that is not

 in compliance.

p)

 Z~.na1yscsfor the Ph

eT.

 Phaoc

II,

 and Phaoc VVOC~—

COnQuotca

~

 ......

...~

 motflocrn.

 Tfl050

oontainad—-~thUSEPA Organic Hethodo, incorporated by roforonco in

&cction 61l.102:This provision corresponds with 40 CFR

141.24(f)(l6)

 (1994), which U.S.

 EPA removed and reserved at

59

Fed. Req.

62468

 (Dec.

5,

 1994).

 This statement maintains

structural

 consistency with the

 federal regulations.

1)

 rlotho.d 502.1*

 “Volatile Halogenated Organic Chemicals

in

Water by Purge and Trap Cao Chromatography”.

2)

 1~cthod502.2:

 “Volatile Organic Compounds

 in Water by Purge

and Trap Capillary Column Cas Chromatography wi~b-h

~he-toionisation and Elcctr-olytic Conductivity Detcotors in

6cric-&~-.-

3)

 ~othod

 503.1:

 “Volatile Aromatic

 and Unsaturated Organic

Compounds

in—Water

 by Purge and Trap Cas Chromatography”.

Method

524.1:

“Zlcasurernent

Purgoablo

Organic

Compounds

in Water by Purged Column Cas

Chromatography/flasa

Spcatromctry”.

?fothod

~24.2:

“Measurement

Purgoablo

Organic

Compounds

in Water by Capillary Column Gas Chromatography/Mass

143

&pcetromctry”

q)

 Analysis under this Section must only be conducted by laboratories

that have received approvalcertification by U~.S.~.EPAor the Agency

according to the following conditions:

1)

 To receive conditional approvalcertification to conduct

analyses for the Phase

 I VOCs, excluding vinyl chloride,

Phase

 II VOCS,

 and Phase

 V VOCs,

 the laboratory must:

A)

 Analyze performance evaluation samples that

 include

these substances provided by the Agency pursuant to 35

Ill.

 Adxn.

 Code 183.125(c);

B)

 Achieve the quantitative acceptance limits

 under

subsections

 (q)(1)(C) and

 (g)(1)(D) below for at

 least

80 percent of the Phase

 I VOCs, excluding vinyl

chloride,

 Phase

 II VOCs,

 except vinyl

 chloride,

or

Phase V VOCS;

C)

 Achieve quantitative results on the analyses performed

under subsection

 (q)(1)(A)

 above that are within ±20

percent of the actual amount of the substances

 in the

performance evaluation sample when the actual amount

is greater than or equal

 to 0.010 mg/I.;

D)

 Achieve quantitative results on the analyses performed

under subsection (q)(l)(A)

 above that are within ±40

percent of the actual amount of the substances

 in the

performance evaluation sample when the actual amount

is less than 0.010 mg/I.; and

E)

 Achieve

 a method detection limit of 0.0005

 mg/I.,

according to the procedures in 40 CFR

 136,

 appendix

B,

incorporated by reference in Section

 611.102.

2)

 To receive conditional approvalcertification to conduct

analyses for vinyl chloride the laboratory must:

A)

 Analyze performance evaluation samples provided by the

Agency pursuant to 35 Ill.

 Adm. Code

 183.125(c);

B)

 Achieve quantitative results on the analyses performed

under subsection (q)(2)(A)

 above that are within ±40

percent of the actual amount of vinyl chloride in the

performance evaluation sample;

C)

 Achieve

 a method detection limit of 0.0005 mg/I.,

according to the procedures in 40 CFR 136, appendix

B,

incorporated

reference

Section

611.102;

and

0)

 Obtain certification pursuant

 to subsection

 (q)(l)

above for Phase

 I VOCs,

 excluding vinyl

 chloride,

Phase

 II VOCs,

 and Phase V VOCs.

r)

 Use of existing data.

1)

 The Agency shall allow the use of data collected after

January

1,

 1988 but prior to the effective date of this

Section, pursuant to Agency sample request

 letters,

 if it

determines that the data are generally consistent with the

requirements of this Section.

144

2)

 The Agency shall grant

 a SEP pursuant to Section 611.110

that allows a supplier to monitor annually beginning

 in the

initial compliance period

if

 it determines that

 the supplier

did

 not detect any Phase

I,

 Phase

 II, or Phase

 V VOC using

existing data allowed pursuant to subsection

 (r)(1)

 above.

8)

 The Agency Bhall, by SE?, increase the number of sampling points

or the frequency of monitoring if

 it determines that

it

is

necessary to detect variations within the PWS.

t)

 Each laboratory approve4c~ertifiedfor the analysis of Phase

I,

Phase II,

 or Phase V VOCs pursuant to subsection

 Cq)(1)

or

 (q)(2)

above shall:

1)

 Determine the method detection limit

(MDL),

 as defined

 in 40

CFR

 136, Appendix

B,

 incorporated by reference

 in Section

611.102,

 at which

it

 is capable of detecting the Phase

I,

Phase

II,

 and Phase V VOC5;

 and,

2)

 Achieve an MDL for each Phase

I,

 Phase

II,

 and Phase V VOC

that

is

 less than or equal to 0.0005

 mg/I..

U)

 Each supplier shall monitor,

 within each compliance period,

 at the

time designated by the Agency by SEP pursuant

 to Section 611.110.

BOARD NOTE:

 Derived from 40 CFR 141.24(f)

 (l99~4).

(Source:

 Amended

at

19

 Ill.

 Beg.

________,

 effective

_________

Section 611.647

 Sampling for Phase

 I Volatile Organic Contaminants

IRepealed)

For oyebcmo

 in operation

 be-for-s

monitoring~analysis of

 Phase-

I

‘.,

 1993,

 for—purpoocs of

 initici1

purposes of determining compli

a)

CWC

 suppliers shall sample at entry points—representative of each

well after treatment.

 Sampling must

 be- conducted at the same

loeati-on~o)-or more representative looation(o)

 every three months

f-or--one year except as provided

 in subsection

 (h) (1) below.

b-)

CWC

 and mixed -system suppliers using surface sources

 shall sample

at poi-nto

 in the distribution system representative of-each source

or at

 entry points to the distribution cyctom after

any

appl-ieation

 of treatment.

 CWCs and mixed system suppliers aba-Il

sample-

 each sour-cc every three- months o~c-cpt zio provided

in

eubsootion

 (h)-(2) be1o~.- Sampling must be conducted at the

 s-ama

location or

 a more representative location each quarter-.-

 If the system draws water

 from more

than-one

source

and

sources

are

 combined

before

distribution,

the

supplier

shall

 sample

 cit an

entry point to-the distribution system during pens-do of normal

riPinn

 conditions-

—r

~s~__.

£...

—___~

shall analyse all distributia

appropriate-, representing all

ing more tha~

entry point

3, 3~O

-

-r

 analyce

.cquir~

•7n

fh

-J

145

paragraph, reprcoenting~

~ii

 source waters beginning no later

a)

 If the results exceed the MGI.,

 the CUE or NTNCUS supplier shall

i~nitiotathree- additional analyses

cit

the same sampling point

within one month.

 The sample results must be averaged with the

first sampling result and uaod for aompl~anoe-dotcrminatLonin

pocor-danoc with oubocotion

(i)

 below.

 The Agency shall delete

results of obvious-sampling errors from thia -calculation.

 Analycie for vinyl chloride

 to required only

for

 CWEo that have

detected one

more-of

the

following

two

carbon

organic

eoffipoundo

 Triehloroothylane,

 tetrachloroothylone,

 1,2—

dichl-oroethane,

 1,1,1

 trichioroethane,

 cia 1,2

 diahlorocthylene-1

t~r~ano-1,2—dich1orocthylonoor 1,1—diohloroothylanc.

 The analysis

(or vinyl chloride- is required at each distribution or entry point

at which one- or more of the two carbon organic compounds were

found.

 If the first analysis

 do-es not detect vinyl chlonidc,—the

Agency shall reduce the frequency of vinyl chloride monitoring to

enco every three years

 for that sample location or other sample

locations that arc more representative of the same source.

g)

 The Agency or suppliers may composite -up--to five o-amplco

 from—e-ne

or more suppliers.

 Compositing of samples

is

 to be done

 in the

laboratory by the procedures listed bclo~. Samples must be

analyzed—within

 fourteen-days of collection.

 If any of the Phase

I VOCo- is detested in the original composite sample,

 a samplo from

each source that made up the composite- sample must

 b-c reanalye-cd

individually within fourteen days from sampling.

 The sample

 f-or

reanalysis cannot

 b-c the original sample but -can be

 a duplicate

sample.

 If duplicates of the original samples arc not avaiLable,

 now samples must be taken from each spurge used

 in the original

composite and analyzed for the Phase

 I VOCs.

 fleanalycin must—be

accomplished within fourteen days of the-second sample.

To

compocito samples, the following procedure must be

 foll-owedi

1)

 Compositing samples prior to CC analysis-.

A)

Add

 5 ml or equal

larger

amounts

each

sample

(up-to

5 samples are allowed)

to

ci

25 ml glass

 syringe-.

Special

precautions

must

made

maintain

zero

hoadopace in the

 syringe.-

B)

 The samples must be -cooled at

during this step to

minimize volatilization

 loQ3c-s.

C)

 Mix well and drai~out

ci

5-mi auiquot

 for analysis,

D)

 Follow sample introduction,

 purgin-g and dcaorption

steps -described

 in the methoth

B)

 If loss than five samples arc used for

 oompooiting,- a

proportionately smaller—syringe may be u~cd-s

 Compootting samples prier to CC/ME analysis.

Inject

 5 ml or equal larger amounts of each-aqueous

sample (up to

 S samples arc allowed)

 into a—25 ml

purging device using the sample introduction technique

described

 in the

methed-.-

B)

 The total volume of the sample in the purging device

—A-

—It

146

~cscribcd in the method~

...L.i-1.

Ar-

f whi~

dthi.

i)

 Compliance with Section ~11.31l(a)

 is determined based on the

r-e-oulto

running

annual

average

quarterly

sampling

for

cash

sampling

location.

one

location’s

average

greater

than

the

MCI., than

the

OWE

MTNCW&

deemed

b-c

out

 of compliance.

If

a-CWE or 1~1TNCWShas

distribution

system

separable

from

other

parts of the distribution system with

interconnections,

only

that part of the system that exceeds any MCL as specified

in

Section 611.311(a)

 is deemed out of compliance.

 The Agency

 shall,

by EEF, reduce the public notice requirement to that portion

 o-f-

the CUE that

 is out

 of compliance.

If

any

 one- sample

 result would

cause the annual average to be exceeded,

 then the CWC

 is deemed to

be- out of compliancc—immcdiatcly.

 For CUC suppliers—t-hat only

take one sample per location because none of the Phase

 I VOCo wore

dr~r!$r~d-

 compliance

is

 based on that one sample-

 Analy3is under

 thictcd using the following

(JEEPA Organi

~ii

ir~

1)

 Method 502.1.

2)

 ~1ctho-d503.1-.

c~

Method

Hethod

t~h~d

524.1.

524.2.

SO7.~..

 VOCs,

st only be conducted by

1

~prov~l

 by the ~

._—4

 duct .a-1y~- for t~

—i-ny-1

 ~‘-idc,

 lcibor-ot..~1-shall

A~

 Analyse performance evaluation samples that include

these

substances

provided

the

Agency

pursuant

3-5

Ill. Adm. Code 183.l25(c)~3).

B)

 Achieve the quantitative acceptance

 limits under

subsection

 (k)(1)(C)

or

 (k)(l)(D) below for at

 least

cix of the Phase

 I VOCo,

 except

 vinyl chloride-.

C)

 Achieve quantitative results on the analyses performed

under subsection (h)(l)~A) above that arc within

±20

percent of the actual amount of the substances in the

performance evaluation sample ~whon the actual amount

is greater than or equal to 0.010 ntg/L.

D)

 Achieve quantitative results on the analyses performed

UCEPA

 rul-e-o.

 Thin

~itih

ri-inn

e~ffcctivenL~u

r-nrr

r-tnnl’

u,.

ç~j~

~

rn~

January

1,

 1993.

 -Although UCEPA

not ranoalo

 proviuwzi,

 the Board has done so to avoi~

u-unfupi-on.

 ~i~t~emcntmaintains structural integrity with

k)

 Analysis under thi~

that hav&~

rcc

~CD~1Dfl

~11.

 ~c~cor

icu Con

Cectip

diti~

1)

To

~nal

-‘

~dit~r~’1

nfl

rohlrnJlng

 aonuLr~r~nnI

except

nursuant

to

ion limit of 0.0005 mg/I

urea in 40 CFR

 136,- App.

——-

—

•-

—J

‘~k’t’~~

 by the Agency for the ana-ly

laboratory

 phalli

—--a

Analyse

performance

 evaluation

 aamplec provided by the

Agency.

 (Ccc 35

 Ill. Mm.

 Code

l83.125(o)-(3-)-,)-

B)

 Achieve quantitative results on the analyses- performed

under subsection

 (k)(2)(A)

 above that are within

1

40

percent of the actual amount of vinyl chloride in

the

ocrformancc

 evaluation samolc

n)

 Each approved laboratory shall detorminc the method detection

limit

 (~1DL), as defined in 40

CPu

 136, App.

B,

 incorporated by

reference

 in Section 611.102,

 at which it

 is capable of detecting

o~inhnf

 thn- Ph~nn

I

 ~7CCn.

 Thc~

acceptable

)4flT~

it-i

 OflOO~

mnJL..

Ic),

 (f),

(g)

and

(h)

 above

(Source:

 Repealed at

19

 Ill.

 Reg.

________,

 effective

—-C

Section 611.648

 Phase

II,

 Phase IIB, and Phase V Synthetic Organic

Contaminants

Analysis of the Phase II,

 Phase 118,

 and Phase V SOCs for the purposes of

determining compliance with the MCI. must be conducted as follows:

a)

 Definitions.

 As used in this Section:

 “Detect or detection’

 means that the contaminant of interest

is present at

 a level greater than or equal to the

“detection limit”.

147

~rC

 “.01-0 ~

under subsection

 (k)(l)(A)

 above that arc within ±40

percent of the actual amount of the substances

 in the

Darform~noeevaluation sample when the actual amount

C-

--

-s

in

40 CPa

 136,

 App.-B,

cd by reference in Section 611.102.

ly appr

i——,

I~f

_____s

———1

A———-—

ml.~

 with

 40 CFR 141.24(g) (14),

 an optioncil

-r

ml.

‘~,

i————,

148

“Detection limit” means the level of the contaminant

of

interest that

 is specified in subsection

(r)

 below.

BOARD NOTE:

 This

is

 a ‘~triggerlevel” for Phase

II,

 Phase

118, and Phase V SOCs inasmuch

as

 it prompts

 further action.

The use of the term “detect’

 or “detection’

 in this section

is

 not intended to include any analytical capability of

quantifying lower levels of any contaminant,

 or the

 ~‘method

detection limit”.

b)

 Required sampling.

 Each supplier shall take a minimum of one

sample at

each sampling point

 at the times required

 in subsection

(q)

 below.

BOARD NOTE:

 U..S~EPAstayed the effective date of the MCLs for

aldicarb,

 aldicarb sulfone,

 and aldicarb sulfoxide at

 57 Fed.

 Reg.

22178

 (May 27,

 1991).

 Section 611.311(c)

 includes this stay.

However,

 despite the stay of the effectiveness

 of the MOLe

for

these three SOCs,

 suppliers must monitor

 for them.

c)

 Sampling points.

1)

 sampling points

 for GWSs.

 Unless

 otherwise provided by SEPI

a GWS

 supplier shall take at

 least one sample from each of

the following

 points:

 each entry point that

is

representative of each well after

 treatment.

2)

 Sampling points for SWS5 and mixed systems.

 Unless

otherwise provided by

 SEP,

 a SWS or mixed system

 supplier

shall

 sample from each of the

 following points:

A)

 Each entry point

 after treatment;

or

B)

 Points in the distribution system that are

representative of each source.

3)

 The supplier shall take each sample

at

 the same sampling

point unless the Agency has granted a SEP that designates

another- location as more representative of each source,

treatment plant,

 or within the distribution system.

4)

If

a

 system draws water from more than one source, and the

sources are combined before distribution,

 the supplier shall

sample

entry

point

during

 periods of normal operating

conditions when water

 is representative

 of all sources being

used.

BOARD NOTE:

 Subsections

(b)

and

(C)

 above derived from 40

CFR 141.24(h)(1)

 through

 (h)(3)

 (199~3j).

d)

 Monitoring frequency:

1)

 Each CWS and NTNCWS supplier

 shall take four consecutive

quarterly samples for each of the Phase

II,

 Phase

 118, and

Phase V SOCs during each compliance period, beginning in the

three—year compliance period starting in the initial

compliance period.

2)

 Suppliers serving more than 3,300 persons that do not detect

a contaminant in the initial compliance period,

 shall take

a

minimum of two quarterly samples in one year of each

subsequent three—year compliance period.

149

3)

 Suppliers

 serving less than or equal to 3,300 persons

 that

do not detect

 a contaminant

 in the

 initial compliance

period,

 shall take a minimum of

 one sample during each

subsequent three—year

 compliance period.

e)

 Reduction to annual monitoring frequency.

 A CWS or NTNCWS

supplier may apply to the Agency for a SEP that releases

it

 from

the requirements of subsection

(d)

 above.

 A SEP from the

requirement

 of subsection

(d)

 above shall

 last

 for only

 a single

three—year compliance period.

f)

 Vulnerability Assessment.

 The Agency shall grant

 a SEP from the

 requirements of subsection

 (ci)

 above based on consideration of the

factors set forth at Section

 611.110(e).

g)

 If one of the Phase

II,

 Phase

 IIB,

 or Phase V SOCs

 is detected in

any sample,

 then:

1)

 The supplier shall monitor quarterly for the contaminant at

each sampling point that resulted

in

 a detection.

2)

 Annual monitoring.

A)

 A supplier may request that the Agency grant

 a SEP

pursuant to Section 610.110 that reduces the

monitoring frequency

 to annual.

B)

 A request

for

 a SEP must

 include the following minimal

information:

i)

 For a GWS,

 two quarterly samples.

ii)

 For a SWS or mixed

 system,

 four quarterly

samples.

C)

 The Agency shall grant

 a SEP that allows annual

monitoring at

 a sampling point

if

 it determines that

the sampling point

 is reliably and consistently below

the

 MCI..

D)

In

 issuing the SEP, the Agency shall specify the level

of the contaminant upon which the “reliably and

consistently” determination was based

 All SEPs that

allow less frequent monitoring based on an Agency

“reliably and consistently”

 determination shall

include

 a condition requiring the supplier to resume

 quarterly monitoring pursuant to subsection

 (g)(1)

above

if

 it detects any Phase II SOC.

3)

 Suppliers that monitor annually

 shall monitor during the

quarter(s)

 that previously yielded the highest analytical

result.

4)

 Suppliers that have three consecutive annual samples with no

detection of a contaminant at a

sampling

point

may

apply

the Agency for

 a SEP with respect to that point,

as

specified in subsections

(9)

and

(f)

 above.

5)

 Monitoring for related contaminants.

A)

 If monitoring results

 in detection of one or more of

the related contaminants

 listed in subsection

150

(g)(5)(B)

 below,

 subsequent monitoring shall analyze

for

 all the related compounds in the respective group.

B)

 Related contaminants:

i)

 first group:

aldicarb

aldicarb sulfone

aldicarb sulfoxide

ii)

 second group:

heptachlor

heptachlor epoxide,

h)

 Quarterly monitoring following MCI. violations.

1)

 Suppliers that violate an MCL

 for one of the Phase

11,

 Phase

113, or Phase V SOCs,

 as determined by subsection

(k)

 below,

shall monitor quarterly

 for that contaminant

 at the sampling

point where

 the violation occurred,

 beginning the next

quarter after the violation.

2)

 Annual monitoring.

A)

 A supplier may request that the Agency grant

 a SEP

pursuant to Section 611.110 that reduces the

monitoring frequency to annual.

B)

 A request

for

 a SEP must include,

at

 a minimum, the

results

 from four quarterly samples.

C)

 The Agency shall grant

 a SEP that allows annual

monitoring at

 a sampling point

if

 it determines that

the sampling point

 is reliably and consistently below

the MCL.

D)

 In issuing the SEP,

 the Agency shall specify the

 level

of the contaminant upon which the “reliably and

consistently” determination was based

 All SEP5 that

allow less

 frequent monitoring based on an Agency

“reliably and consistently” determination shall

include

 a condition requiring the supplier to resume

quarterly monitoring

pursuant

subsection

(h)(1)

above

detects

any

Phase

SOC.

E)

 The supplier shall monitor during the quarter(s)

 that

previously yielded the highest analytical result.

i)

 Confirmation samples.

1)

 If any of the Phase

II,

 Phase IIB,

 or Phase V SOCs are

detected in

 a sample, the supplier shall take a confirmation

Bample as soon as possible,

 but no later than 14 days after

the

 supplier receives notice of the detection.

2)

 Averaging

is

as

 specified in subsection

(k)

 below.

3)

 The Agency

 shall delete the original or confirmation sample

if

 it determines that

 a sampling error occurred,

 in which

case the confirmation sample will replace the original or

151

confirmation sample.

 This subsection corresponds with 40 CFR 141.24(h)(10),

 an optional

U~S~.EPAprovision relating to compositing

of

 samples that ~

EPA does not require for state programs.

 This statement maintains

structural consistency with U~S~.EPArules.

k)

 Compliance with the MCLs

 for the Phase II, Phase

 IIB,

 and Phase V

SOCs shall be determined based on the analytical results obtained

at each sampling point.

1)

 For suppliers that

 are conducting monitoring at

 a frequency

greater than annual, compliance is determined by a running

annual

 average of all samples taken at each sampling point.

A)

 If the annual average of any sampling point is greater

than the

 MCI.,

 then the supplier

 is out of compliance.

B)

 If the initial sample or

 a subsequent sample would

cause the annual

 average to be exceeded,

 then the

supplier

 is out of compliance immediately.

C)

 Any samples below the detection limit must be

calculated as zero for purposes of determining the

annual

 average.

2)

 If monitoring

 is conducted annually or

 less

 frequently,

the

supplier

 is out of compliance

 if the

 level of

 a contaminant

at any sampling point

 is greater than the

 MCI..

If

a

confirmation sample

 is taken,

 the determination

of

compliance

 is based on the average of two samples.

3)

 When the portion of the distribution system that

 is out of

compliance is separable

 from other parts of the distribution

system and has no interconnections, the supplier may

 issue

the public notice required by Subpart T of this Part only to

persons served by that portion of the distribution system

that

 is not in compliance.

BOARD NOTE:

 Derived from 40 CFR

 141.24(h)(1l)

 (199~4).

1)

 Analysis for Phase

II,

 Phase

 115, and Phase V

 COCs must be

conducted using the

 following methods.

 These- methods, oMocpt for

USEPA

 Dioi-tin and Furan Method 1613,

 arc contained

 in UCEP2\ Organic

Hethodo.

 All methods arc incorporated

 by reference

 in Ceetion

611.102.Thjs provision corresponds with 40 CFR 14l.24(h)(12)

(1994), which U.S.

 EPA removed and reserved at

 59 Fed.

 Req. 62468

Wee.

5.

 1994).

 This statement maintains structural consistency

with the federal regulations.

1~

 Method 504t

 “l,2-Dibromoothano

 (5DB)

 and 1,2 Dibr-omo--

3—ahioropropane (DECP

 in Water by Hioroontraction and Cao

Chromatography”.

 Method 504 can be used to measure

1,2 Dibromo 3 chloropropano

 (dibromschloroprepane—or ODOP)

and 1,2-Dibromoethano (ethylene dibromido or 5DB)-.

2)

 Mothod SOSi

 “Analysis

 -of Organohalide Poslicidee an4

 Oomxno-rcial Pelyoblorinatod Diphenyl Products

 (Aroa-loro)

in

Water by Miorooutraetion and Cao Chromatography”.

 Method

~0S can ho u~cdto- measure alachior,

 atraEinc,

 ohiordang,

Dr~T, dicidrin,

 endrin- hcptachlor,

 heptachior epox-ide,

 hex-a

152

 —---

 ----a

 tox.~’.

Lrloopnorus-~ontaLnLng

chromatography with

a

i-estic~acuin Ground

Nitrogen Phosphorus

Water by

i-~a~

Detector”.

 Method

507 can be used to measure alachbr,

 atras

ma,

and simasinc.

Extraction ~nd Capillary

Cpectromctry”.

 Method 525

atra~inc,ohlordanc,

 di(2—i

hoxyl)phthalato,

 endrin, hcpt~unior,

nupt-~unLor

upoxiue,

hexaahlorobcnsenc,

 hcxaehlorocyclopontadienc,

 lindane,

mcthoxychlor,

 and pentachlorophenol polynucloar aromatic

hydrocarbons, cimacinc,

 and totaphcne.

8)

 Method

 531.1*

 “Measurement of

 r~-HethylCarbamoylo~imeo and

N Mothyl

 Carbamatcs

 in Water by Direct Aqueous Injection

HPLC with Post—Column Derivatization”.

 Method 531.1

 can be

used to measure aldicarb,

 aldicarb oulfoxido,

 aldicarb

sulfonc,

 and carbofuran,

 and o~amyl.

9)

 U.S.~.EPADioxin and Furan Method

 1613,

 “Tetra- through

Octa— Chlorinated Dio~cinoand Furano by Isotope

 Dilution”.

Method

1613

 can be used to measure 2,3,7,8 TCDD

 (dioxin).

10)

 Method

 547*

 “Analysis of Clyphooato

 in Drinking Water by

Direst Agupouo Injection HPLC with Post—Column

•~

—J

11)

 Hethod 548,

 “Determination of Endothall in Aqueous

Samples”

 Method 548

 can be used to measure artdothall.

~“etcrni

 --.~d flaraquat

t~.

Diquat

Drinking Water by High Porformanco Liquid cnromatograpny

with Ultraviolet Detection”.

 Method 549 can be used to

Hydorcarbonri in Drinking Watcr byLiquid=LiquidE

and HPLC with Coupled Ultraviolet and Fluorcocanc

4)

 Method 508*

 “Determination of Chlorinated Pesticides

in

Water by Gas Chromatography with an Electron Capture

Detector”.

 Method 508 can be used to measure ahlordano,

DDT,

 dicldrin,

 ondrin,

 heptachlor,

 haptachior opoxido,

 hoxa—

chlorobcn~cnc, lindanc,

 mcthoxychlor,

 and toxaphcne.

 Method

508 can be used as

 a screen

 for PCDs.

Method

 508A,

 “Screening

 for Polychiorinated Biphenylo by

Perchborination and Gas Chromatography”.

 Method 508A

is

5)

used to quantitate PCBs

 as dccachlorobiphenyl

 if detected in

Methods 505 or

 508.

Method

 515.1,

 revision 5.0

 (May,

 1991),

 “Determination of

6)

Chlorinated Acids

 in Water by Gas Chromatography with an

Electron Capture-Detector”.

 Method 515.1

 can be used to

measure 2,4—D, dalapon,

 dincoeb, pcntaohlorophenol,

picloram,

 and 2,4,5 TP

 (Cilvex).

 Method 625.1,

r~jininn

~.fl

(M~v

 199fli

 “Dctnrmin~ion of

by Liquid—Solid

Chromatography/H.

an be

hylhcxyl

)

 ~dipate,

ae~

di( 2—ethyl-

17)

 Method

-a

153

Detection”.

 Method

550

 can- be used to—measure benso—

-(-a)pyrene

 and- other polynuclear aromatic hydrocarbons.

..~

......~

..~

a*~dHt’L0 with Coupled Ultraviolet and F~l

Detection”.

 Method 550-can

 iju uutu

m

(a1~vroncanu otner nolvriucbaar aromat~

Tn)

 Analysis for PCBs must be conducted as follows using the methods

in Section 611.645:

1)

 Each supplier that monitors for PCBs shall analyze each

sample using either U.~S.~EPA

 Organic Methods,

 Method 505 or

Method 508.

2)

 If PCBs are detected

 in any sample analyzed using U.~.S.~EPA

Organic Methods,

 Methods 505 or

 508, the

 supplier shall

reanalyze the sample using Method 508A to quantitate the

individual Aroclors

 (as decachlorobiphenyl).

3)

 Compliance with the PCB

 MCI. must be determined based upon

the quantitative

 results

 of analyses using tJ~S~EPAOrganic

Methods, Method

 508A.

n)

 Use of existing data.

1)

 The Z~gencyshall

 allow the use of data collected after

January

 1, 1990 but prior

 to the effective date of this

Section, pursuant

 to Agency sample request letters,

 if it

determines.that the data are generally consistent with the

requirements of this Section.

2)

 The Agency shall grant

 a SEP pursuant

 to Section 611.110

that allows

 a supplier to monitor annually beginning in the

initial compliance period

if

 it determines that the supplier

did

 not detect any Phase

 I VOC or Phase

 II VOC using

existing data allowed pursuant to subsection

 (n)(1) above.

0)

 The Agency shall issue

 a SEP that increases the number of sampling

points or the

 frequency of monitoring

if

it

determines that this

is necessary to detect variations within the PWS due to such

factors as fluctuations

 in contaminant concentration due to

seasonal use or changes

in

 the water source.

BOARD NOTE:

 At 40 CFR 141.24(h) (15),

 U.S.

 EPA uses the stated

factors as non-limiting examples of circumstances that make

additional monitoring necessary.

p)

 This subsection corresponds with 40 CFR 14l.24(h)(16),

 a U.~S. EPA

provision that the Board has not adopted because it reserves

enforcement authority

 to the state and would serve no useful

function as part of the state’s rules.

 This statement maintains

structural consistency with U~S~~..EPA

 rules.

q)

 Each supplier shall monitor, within each compliance period, at the

time designated by the Agency by SEP pursuant to Section 611.110.

r)

 “Detection” means greater than or equal to the following

concentrations for each contaminant:

1)

 for PCB5

 (Aroclors):

154

Aroclor

 Detection Limit

 (mg/I.)

1016

 0.00008

1221

 0.02

1232

 0.0005

1242

 0.0003

1248

 0.0001

1254

 0.0001

1260

 0.0002

2)

 for other Phase

II,

 Phase lIE,

 and Phase V SOC5:

Contaminant

 Detection Limit

(mg

/

I.)

Alachlor

 0.0002

Aldicarb

 0.0005

Aldicarb sulfoxide

 0.0005

Aldicarb sulfone

 0.0008

Atrazine

 0.0001

Benzo(a)pyrene

 0.00002

Carbofuran

 0.0009

Chbordane

 0.0002

2,4—D

 0.0001

Dalapon

 0.001

Dibromochloropropane

 (DBCP)

 0.00002

Di(2-ethylhexyl)adipate

 0.0006

Di(2-ethylhexyl)phthalate

 0.0006

Dinoseb

 0.0002

Diquat

 0.0004

Endothall

 0.009

Endrin

 0.00001

Ethylene dibromide

 (EDB)

 0.00001

Glyphosate

 0.006

Heptachbor

 0.00004

Heptachlor epoxide

 0.00002

Hexachborobenzene

 0.0001

Hexachlorocycbopentadiene

 0,0001

Lindane

 0.00002

Methoxychlor

 0.0001

Oxamyl

 0.002

Picborarn

 0.0001

Polychlorinated biphenyls

 (PCB5)

(as decachlorobiphenyl)

 0.0001

Pentachlorophenol

 0. 00004

Simazine

 0.00007

Toxaphene

 0.001

2,3,7,8—TCDD

 (dioxin)

 0.000000005

2,4,5—TP

 (Silvex)

 0.0002

Laboratory Certification.

1)

 Analyses under this Section must only be conducted by

laboratories that have received approval by ~

 or the

Agency according to the following conditions.

2)

 To receive certification to conduct analyses for the Phase

II,

 Phase IIB,

 and Phase V SOCs the laboratory must:

A)

 Analyze performance evaluation samples provided by the

Agency pursuant to

35

 111. Mm.

 Code 183.125(c)

 that

include these substances;

and

155

B)

 Achieve quantitative results on the analyses performed

under subsection (s)(2)(A)

 above that

 are within the

acceptance limits

 set forth

 in subsection

 (s)(2)(C)

above.

C)

 Acceptance limits:

SOC

 Acceptance Limits

Alachior

 t 45

Aldicarb

 2 standard deviations

A.dicarb

 aulfone

 2 standard deviations

Aldicarb

 sulfoxide

 2 standard deviations

Atrazine

 ±45

Benzo(a)pyrene

 standard deviations

Carbofuran

 ±45

Chlordane

 ±45

Dalapon

 2 standard deviations

Di (2—ethylhexyl)adipate

2 standard deviations

Di(2—ethylhexyl)phthalate

2 standard deviations

Dirioseb

 2 standard deviations

Diquat

 2 standard deviations

Endothall

 2 standard deviations

Endrin

 ±30

Glyphosate

 2 standard deviations

Dibromochboropropane

 (DBCP)

 ±40

Ethylene dibromide

 (EDE)

 ±40

Heptachlor

 ±45

Heptachbor epoxide

±

45

Hexachlorobenzene

 2 standard deviations

Hexachlorocycbopentadiene

2 standard deviations

Lindane

 ±45

Methoxychbor

 ±45

Oxamyl

 2 standard deviations

PCBs

 (as Decachborobiphenyl)

 0—200

Pentachlorophenol

 ±50

Picloram

 2 standard deviations

Simazine

 2 standard deviations

Toxaphene

 ±45

2,4—b

 ±50

2,3,7,8—TenD

 (dioxin)

2 standard deviations

2,4,5—TP

 (Silvex)

 ±50

BOARD NOTE:

 Derived

 from 40 CFR 141.24(h)

(l99~4), as

 amended at

59

 Fed. Req.

62468

 (Dec.

5,

 1994).

(Source:

 Amended at

19

 Ill.

 Reg.

________,

 effective

______________________

SUBPART P:

 THM MONITORING AND ANALYTICAL REQUIREMENTS

Section 611.685

 Analytical Methods

Sampling and analyses made pursuant to this Subpart must be conducted by one

of the followingtotal trihabomethanes

 (TTHM~methods7 incorporated by

reference in Cc-ction-61L102-:as directed

 in Section

 611.645

and

 in “Technical

Notes on Drinking Water Methods”, incorporated

by

reference

 in Section

156

611.102.

 For the methods cited

 in subsections

(a)

and

(b)

 above,

 see 40

CFR

141,

 subpart

C,

 appendix

C,

 incorporated by reference

 in Section 611.102.

“The Anal~

 hanec

_..

 ng Waters by the ~ur~e

and Trap Method,” U.S. EPA Organ~.ctlcthods, Method 601.1.

b)

 “The Analysis of Trihalomethanec

in UrJUJLJ.rlg

Water

uy

Liquid/Liquid Extraction,”

 U.E. EPA Oroanic Methods,

 Mathou

~u~-i-~

a)

 “Volatile Organic Compounds

 in Water by Purge and Trap Capillary

Cao Chromatography with Photoioniaation and Eleotrolytio

Conductivity Detector

 in tories”,

 JJ.E.

 EPA Organio Methods

(Ju-~

1991 revision), Method 502.2.

ci)

 “Volatile Organio Chemicals in Water by Purge and Trap Capillary

Gao Chromatography/Mass Speotromotry”,

 U.S. EPA Organic Hethoda

(July 1091

 revision),

 Method 524.2.

a)

 For the methods cited

 in subsections

(a)

and

(b)

 above,

ace

 40 CFR

141,

 subpart

C,

 appondii

C,

 incorporated

 by reference

 in Scotien

611.102.

 Camplco

 for TTHM mu3t be dechlorinated upon collection

to prevent further production

 of Trihabomothancci,

 according to the

procedures described

 in the above two methods.

 Samples

for

maximum TTHM potential must not be dechlorinated,

 and must be held

for seven days at 25°C

 (or above)

 prior to an~lysio, according—to

the proccdurc3 described in the above two mcthoda.

BOARD NOTE:

 Derived

 from 40 CFR 141.30(e)

 (199~3-4), as amended at

59 Fed.

 Reg.

62469

 (Dec.

5,

 19941.

(Source:

 Amended at

 19 Ill.

 Reg.

________,

 effective

______________________

SUBPART T:

 REPORTING,

 PUBLIC NOTIFICATION AND RECORDKEEPING

Section 611.860

 Record Maintenance

A supplier

 shall retain on its premises or at

 a convenient

 location near its

premises the following records:

a)

 Records of bacteriological analyses made pursuant

 to this Part

must be kept for not

 less than

 5 years. Records of chemical

analyses made pursuant to this

 Part must be kept for not less than

10 years. Actual laboratory reports may be kept, or data may be

transferred

 to tabular summaries, provided that the following

information

 is included:

1)

 The date, place and time of sampling,

 and the name of the

person who collected the sample;

2)

 Identification of the sample

 as to whether it was

 a routine

distribution system sample,

 check sample,

 raw or process

water sample or other special purpose sample;

3)

 Date of analysis;

4)

 Laboratory and person responsible

 for performing analysis;

5)

 The analytical technique or method used; and

6)

 The results of the analysis.

157

b)

 Records of action taken by the supplier to correct violations of

this Part must be kept

for

 a period not

 less than

 3 years after

the last action taken with respect to the particular violation

involved.

c)

 Copies

 of any written reports,

 summaries or communications

relating to sanitary surveys of

 the system conducted by the

supplier itself,

by

 a private consultant,

 by U.~.S~EPA,the Agency

or a unit of local government delegated pursuant to Section

611.108, must be kept for

 a period not

 less than

 10 years after

completion of the sanitary

 survey

 involved.

d)

 Records concerning a variance or adjusted standard granted to the

 supplier must be kept for

 a period ending not

 less than

 5 years

following the expiration of

 such variance or adjusted standard.

BOARD

NOTE:

 Derived from 40 CFR 141.33 (l9~9~).

(Source:

 Amended at

 19 Ill. Reg.

________,

 effective

_____________________

Section 611.Appendix A

 Mandatory Health Effects Information

1)

 Trichboroethylene.

 The United States Environmental Protection

Agency

 (U.S.

 EPA)

 sets drinking water standards and has determined

that trichboroethylene

is

 a health concern at certain levels of

exposure.

This

chemical

common

metal

cleaning

and

dry

cleaning fluid.

 It generally gets into drinking water by improper

waste disposal.

 This chemical has been shown to cause cancer

in

laboratory animals such as rats and mice when the animals are

exposed at high levels over their lifetimes.

 Chemicals that cause

cancer

 in laboratory animals also may increase the risk of cancer

in humans who are exposed at lower levels over long periods of

time.

 U.S.

 EPA has

 set forth the enforceable drinking water

standard for trichboroethylene at 0.005 parts per million

 (ppm) to

reduce the risk of cancer or other adverse health effects which

 have been observed in laboratory animals.

 Drinking water which

meets this standard

 is associated with little to none of this risk

and

 should be considered safe.

2)

 Carbon tetrachboride.

 The United States Environmental Protection

Agency

 (U.S. EPA)

 sets drinking water standards and has determined

that carbon tetrachboride

 is a health concern at certain levels of

exposure.

 This chemical was once a popular household cleaning

fluid,

 It generally gets

 into drinking water by improper waste

disposal.

 This chemical

 has been shown to cause

 cancer in

laboratory animals such as rats and mice when the animals are

exposed at high levels over their

 lifetimes.

 Chemicals that cause

cancer in laboratory animals also may increase the risk of cancer

in humans who are exposed at lower levels over

 long periods of

time.

U.S.

EPA

has

set

the

enforceable

drinking

water

standard

for carbon tetrachloride at

 0.005 parts per million (ppm)

to

reduce the risk of cancer or other adverse health effects which

have been observed

 in laboratory animals.

 Drinking water which

meets this standard is associated with little to none of this risk

and should be considered safe.

3)

 1,2—Dichloroethane.

 The United States Environmental Protection

 Agency

 (U.S.

 EPA) sets drinking water standards and has determined

that 1,2-dichloroethane

is

 a health concern at certain levels of

exposure.

 This chemical

 is used as

 a cleaning

 fluid

 for fats,

oils,

 waxes and resins.

 It generally gets

 into drinking water by

158

improper waste disposal.

 This chemical has been shown to cause

cancer in laboratory animals such as rats and mice when the

animals are exposed at high

 levels over their

 lifetimes.

Chemicals that cause cancer

 in laboratory animals

 also may

increase the risk of cancer

 in humans who

 are exposed at lower

levels over long periods

 of time.

 U.S. EPA has set the

enforceable

 drinking water standard

for

 1, 2—dichloroethane

at

0.005 parts per million

 (ppm)

 to reduce the risk of cancer or

other adverse health effects which have been observed in

laboratory animals.

 Drinking water which meets this standard is

associated with

 little to none of this risk and should be

considered safe.

4)

 Vinyl chloride.

 The United States Environmental Protection Agency

(U.S.

 EPA)

 sets drinking water standards and has determined that

vinyl chloride

is

 a health concern at certain levels of exposure.

This chemical is used in industry and is found

 in drinking water

as a result

 of the breakdown

 of related solvents.

 The solvents

are used

 as cleaners and degreasers of metals and generally get

into drinking water by improper waste disposal.

 This chemical has

been associated with significantly increased risks of cancer among

certain industrial workers who were exposed to relatively large

amounts of this chemical during their working careers.

 This

chemical has also been shown to cause cancer

 in laboratory animals

when the animals are exposed at high levels over their

 lifetimes.

Chemicals

 that cause increased risk of cancer among exposed

industrial workers and in laboratory

 animals also may increase the

risk of cancer

 in humans who are exposed

at

 lower

 levels over long

periods of time.

 U.S. EPA has set

 the enforceable drinking water

standard for vinyl chloride at 0.002 parts per million

 (ppm)

to

reduce the risk of cancer or other adverse health effects which

have been observed

in

 laboratory animals.

 Drinking water which

meets this standard

 is associated with little to none of this risk

and should be considered safe.

5)

 Benzene.

 The United States Environmental Protection Agency (U.S.

EPA)

 sets drinking water standards and has determined

 that benzene

is

 a health concern at certain levels of exposure.

 This chemical

is used as a solvent and degreaser of metals.

It

is

 also a major

component of gasoline.

 Drinking water contamination generally

results from leaking underground gasoline and petroleum tanks or

improper waste disposal.

 This chemical has been associated with

significantly

 increased risks of leukemia among

 certain industrial

workers

who

were

exposed

relatively

 large amounts of this

chemical during their working careers.

 This chemical has been

shown to cause cancer in laboratory animals when the animals are

exposed

high

levels

over

their

 lifetimes.

 Chemicals that cause

increased risk of cancer among exposed industrial workers and in

laboratory animals also may increase the risk of cancer

 in humans

who are exposed at

 lower levels over long periods of time.

 U.S.

EPA has

 set the enforceable drinking water standard for benzene at

0.005 parts per million

 (ppm) to reduce the risk of cancer or

other adverse health effects which have been observed

 in humans

and laboratory animals.

 Drinking water which meets this standard

is associated with little to none of this

 risk and should be

considered safe.

6)

 1,1-Dichboroethylene.

 The United States Environmental Protection

Agency

 (U.S.

 EPA)

 sets drinking water standards and has determined

that 1,1—dichioroethylene

is

 a health concern at certain levels of

exposure.

This

chemical

used

 in industry and is

 found

in

drinking water as

 a result of the breakdown of related solvents.

159

The solvents are used as cleaners and degreasers of metals and

generally get into drinking water by improper waste disposal.

This chemical has been shown to cause liver and kidney damage in

laboratory animals such as rats and mice when the animals are

exposed

 at high levels over their lifetimes.

 Chemicals that cause

adverse effects in laboratory animals also may cause adverse

health effects

 in humans who are exposed at lower levels over

 long

periods of time.

 U.S.

 EPA has set the enforceable drinking water

standard

for

1,1—dichboroethylene

 0.007 parts per million

 (ppm)

to reduce the risk of these adverse health effects which have been

observed

laboratory

animals.

Drinking

water

which

meets

this

standard

 is associated with little to none of this risk and should

 be considered safe.

7)

 Para-dichlorobenzene.

 The United States Environmental Protection

Agency

 (U.S. EPA)

 sets drinking water standards and has determined

that para—dichborobenzene is

 a health concern at certain levels of

exposure.

 This chemical

is

 a component of deodorizers, moth balls

and pesticides.

 It generally gets into drinking water by improper

waste disposal.

 This chemical has been shown to cause

 liver and

kidney damage in laboratory animals such as rats and mice when the

animals are exposed at

 high

 levels over their

 lifetimes.

Chemicals which cause adverse effects

 in laboratory animals also

may cause adverse health effects

 in humans who are exposed at

lower levels over long periods of time.

 U.S.

 EPA has set the

enforceable drinking water standard for para—dichlorobenzene at

0.075 parts per million

 (ppm)

 to reduce the risk of these adverse

health effects which have been observed in laboratory animals.

Drinking water which meets this standard

 is associated with little

to

 none of this risk and should be considered safe.

8)

 1,1,1—Trichboroethane.

 The United States Environmental Protection

Agency

 (U.S.

 EPA)

 sets drinking water standards and has determined

that 1,1,1-trichloroethane

is

 a health concern at certain levels

 of exposure.

 This chemical is used as a cleaner and degreaser of

metals.

 It generally gets

 into drinking water by improper waste

disposal.

 This chemical has been shown to damage the liver,

nervous system and circulatory system of laboratory animals such

as rats and mice when the animals are exposed at high levels over

their lifetimes.

 Some industrial workers who were exposed to

relatively large amounts of this chemical during their working

careers also suffered damage to the liver,

 nervous system and

circulatory system.

 Chemicals which cause adverse effects among

exposed industrial workers and

 in laboratory animals also may

cause adverse health effects

 in humans who

 are exposed at lower

levels over long periods of time.

 U.S. EPA has set the

enforceable drinking water standard for 1,1,1—trichloroethane at

0.2 parts per million

 (ppm)

 to protect against the risk of these

adverse health effects which have been observed

 in laboratory

animals.

 Drinking water which meets this standard is associated

with little to none of this risk and should be considered safe.

9)

 Fluoride.

 The U.S. Environmental Protection Agency requires that

we send you this notice on the level of fluoride

 in your drinking

water.

 The drinking water in your community has a fluoride

concentration of

 milligrams per liter

 (mg/L).

Federal regulations require that fluoride, which occurs naturally

in your water supply,

 not exceed a concentration of 4.0 mg/L in

drinking water.

 This is an enforceable standard called

 a Maximum

Contaminant Level

 (MCL),

and

 it has been established to protect

the public health.

 Exposure to drinking water levels above 4.0

160

mg/L

 for many years may result in some cases of crippling skeletal

fluorosis,

 which is a serious bone disorder.

Federal law also requires that we notify you when monitoring

indicates that the

 fluoride in your drinking water exceeds 2.0

mg/L.

 This

 is intended

 to alert families about dental problems

that might affect

 children under nine years

 of age.

 The fluoride

concentration of your water exceeds this federal guideline.

Fluoride

 in children’s drinking water

 at levels of approximately

1

mg/L reduces

 the number of dental cavities.

 However,

 some

children exposed to levels

 of fluoride greater than about 2.0 mg/L

may develop dental fluorosis.

 Dental

 fluorosis,

 in its moderate

and severe forms,

is

 a brown staining and/or pitting of the

permanent teeth.

Because dental fluorosis occurs only when developing teeth (before

they erupt

 from the gums)

 are exposed to elevated fluoride levels,

households without children are not expected to be affected by

this

 level of fluoride.

 Families with children under

 the age of

nine are encouraged to seek other sources of drinking water

for

their children to avoid the possibility of staining and pitting.

Your water supplier can

 lower the concentration of fluoride

in

your water so that you will still receive the benefits of cavity

prevention while the possibility of stained and pitted teeth

is

minimized.

 Removal of fluoride may increase your water costs.

Treatment

 systems

 are also commercially available for home use.

Information

 on such systems

 is available at the address given

below.

 Low fluoride bottled drinking water that would meet all

standards

 is also commercially available.

For further information, contact

 at your water system.

BOARD NOTE:

 Derived from 40 CFR 141.32(e)(9)

 and 143.5

 (1992~4).

10)

 Microbiological

 contaminants

 (for use when there

is

 a violation of

the treatment technique requirements

 for filtration and

disinfection

 in Subpart

 B of this Part).

 The United States

Environmental Protection Agency

 (U.S. EPA)

 sets drinking water

standards and has determined that the presence of microbiological

contaminants are a health concern at certain levels of exposure.

If water is inadequately treated, microbiological contaminants in

that water may cause disease.

 Disease symptoms may include

diarrhea,

 cramps,

 nausea and possibly jaundice and any associated

headaches and fatigue.

 These symptoms,

 however,

 are not just

associated with disease—causing organisms in drinking water,

but

also may be caused by a number of factors other than your drinking

water.

 U.S. EPA has set enforceable requirements for treating

drinking water to reduce the risk of these adverse health effects.

Treatment such as filtering and disinfecting the water removes or

destroys microbiological contaminants.

 Drinking water which

is

treated to meet U.S. EPA requirements

 is associated with little to

none of this risk and should be considered safe.

11)

 Total coliforms.

 (To be used when there

is

 a violation of Section

611.325(a)

 and not

 a violation of Section 611.325(b)).

 The United

States Environmental Protection Agency

 (U.S.

 EPA) sets drinking

water standards and has determined that the presence of total

coliforms

 is a possible health concern.

 Total coliforms are

common

 in the environment and are generally

 not harmful

themselves.

 The presence of these bacteria

 in drinking water,

161

however,

 generally is

 a result of

 a problem with water treatment

or the pipes which distribute the water and indicates that the

water may be contaminated with organisms that can cause disease.

Disease

 symptoms may include diarrhea,

 cramps,

 nausea and possibly

jaundice,

 and any associat~dheadaches and fatigue.

 These

symptoms,

 however, are not just associated with disease—causing

organisms

 in drinking water,

 but also may be caused by a number of

factors other than your drinking water.

 U.S. EPA has set an

enforceable

 drinking water standard

 for total coliforms to reduce

the risk of these adverse health effects.

 Under this standard,

no

more than 5.0 percent of the samples collected during

 a month can

contain these bacteria,

 except that systems collecting fewer than

40 samples/month that have one total coliform-positive sample per

month are not violating the standard.

 Drinking water which meets

this standard

 is usually not associated with a health risk from

disease—causing bacteria and should be considered safe.

12)

 Fecal Coliforms/E. coli.

 (To be used when there is

 a violation of

Section 611.325(b) or both Section 611.325(a)

and

 (b)).

The

United States Environmental Protection Agency

 (U.S.

 EPA) sets

drinking water standards and has determined that the presence of

fecal

 coliforms or

E.

 coli

 is a serious health concern.

 Fecal

coliforms

and

E.

 coli are generally not harmful themselves, but

their presence in drinking water

is

 serious because they usually

are associated with sewage or animal wastes.

 The presence of

these bacteria in drinking water

 is generally a result of

a

problem with water treatment or the pipes which distribute the

water and indicates that

 the water may be contaminated with

organisms that can cause disease.

 Disease symptoms may include

diarrhea,

 cramps,

 nausea and possibly jaundice,

 and associated

headaches and fatigue.

 These symptoms,

 however, are not

 just

associated with disease—causing organisms

 in drinking water,

but

also may be caused by a number of factors other than your drinking

water.

 U.S.

 EPA has

 set an enforceable drinking water standard

for

 fecal colifornis and E.

 coli to reduce the risk of these

adverse health effects.

 Under this standard all drinking water

samples must be free of these bacteria.

 Drinking water which

meets this standard is associated with little or none of this risk

and should be considered safe.

 State and local health authorities

 recommend that consumers take the following precautions:

 tTo be

inserted by

 the public water system, according to instruction from

State or local

 authorities).

13)

 Lead.

 The United States Environmental Protection Agency

 (U.S.

EPA) sets drinking water standards and has determined that lead is

a health concern at certain exposure levels.

 Materials that

contain lead have frequently been used in the construction of

water supply distribution systems, and plumbing systems

 in private

homes and other buildings.

 The most commonly found materials

include service lines,

 pipes, brass

 and bronze fixtures, and

solders and fluxes.

 Lead in these materials can contaminate

drinking water as

 a result of the corrosion that takes place when

water comes

 into contact with those materials.

 Lead can cause

a

variety of adverse health effects in humans.

 At relatively low

levels of exposure, these effects may include interference with

red blood cell chemistry, delays

 in normal physical and mental

development

 in babies and young children,

 slight deficits

 in the

attention span,

 hearing,

and

 learning abilities of children,

and

slight

 increases

 in the blood pressure of some adults.

 U.S. EPA’s

national primary drinking water regulation requires all public

 water

 systems to optimize corrosion control to minimize lead

contamination resulting from the corrosion of plumbing materials.

162

Public water systems

 serving 50,000 people or fewer that have lead

concentrations below

 15 parts per billion

 (ppb)

 in more than

90

of tap water samples

 (the U.S. EPA “action

 level”)

 have optimized

their corrosion control treatment.

 Any water system that exceeds

the action level

 must also monitor their source water to determine

whether treatment to remove lead in

 source water

 is needed.

Any

water system that continues to exceed the action

 level after

installation of corrosion control and/or source water treatment

must eventually replace all lead service lines contributing in

excess of

 15 ppb of lead to drinking water.

 Any water system that

exceeds the action

 level must also undertake a public education

program to inform consumers of ways they can reduce their exposure

to potentially high levels of lead

 in drinking water.

14)

 Copper.

 The United States Environmental Protection Agency

 (U.S.

EPA)

 sets drinking water standards and has determined that copper

is

 a health concern at certain exposure levels.

 Copper,

a

reddish—brown metal,

 is often used to plumb residential and

 commercial structures that are connected to water distribution

systems.

 Copper contaminating drinking water as

 a corrosion by-

product occurs as the result of the corrosion of copper pipes that

remain

in

 contact with water for a prolonged period of time.

Copper

is

 an essential nutrient,

 but at high doses

 it has been

shown to cause stomach and

 intestinal distress,

 liver and kidney

damage,

 and anemia.

 Persons with Wilson’s disease may be

at

a

higher risk of health effects due to copper than the general

public.

 U.S. EPA’s national primary drinking water regulation

requires all public water systems to install optimal corrosion

control to minimize copper contamination resulting from the

corrosion of plumbing materials.

 Public water systems serving

50,000 people or fewer that have copper concentrations below 1.3

parts per million

 (ppm)

 in more than 90

 of tap water samples

 (the

U.S. EPA “action level”) are not required to install or improve

their treatment.

 Any water system that exceeds the action

 level

must also monitor their source water to determine whether

treatment to remove copper in source water is needed.

15)

 Asbestos.

 The United States Environmental Protection Agency

 (U.S.

EPA)

 sets drinking water standards and has determined that

asbestos fibers greater than

 10 micrometers in length are

 a health

concern at certain

 levels of exposure.

 Asbestos is

 a naturally

occurring mineral.

 Most asbestos fibers

 in drinking water are

less than 10 micrometers in length and occur in drinking water

from natural sources and from corroded asbestos—cement pipes

in

the distribution system.

 The major uses of asbestos were in the

production of cements, floor tiles,

 paper products,

 paint,

and

caulking;

 in transportation—related applications;

 and in the

production of textiles and plastics.

 Asbestos was once a popular

insulating and fire retardant material.

 Inhalation studies have

shown that various

 forms of asbestos have produced lung tumors

in

laboratory animals.

 The available information on the risk of

developing gastrointestinal tract cancer associated with the

ingestion of asbestos from drinking water

is

 limited.

 Ingestion

of intermediate—range chrysolite asbestos fibers greater than 10

micrometers

 in length

 is associated with causing benign tumors

in

male rats.

 Chemicals that cause cancer in laboratory animals also

may increase the risk of cancer in humans who are exposed over

long periods of time.

 U.S. EPA has set the drinking water

standard for asbestos at

 7 million long fibers per liter to reduce

the potential risk of cancer or other adverse health effects which

 have been observed in laboratory animals.

 Drinking water which

meets the U.S. EPA standard

 is associated with little to none of

163

this risk and should be considered safe with

 respect to asbestos.

16)

 Barium.

 The United States Environmental Protection Agency

 (U.S.

EPA)

 sets drinking water standards and has determined that barium

is

 a health concern

 at certain levels of exposure.

 This inorganic

chemical occurs naturally in some aquifers that serve

 as sources

of groundwater.

It

 is also used in oil and gas drilling muds,

automotive paints, bricks,

 tiles, and jet fuels.

 It generally

gets into drinking water after dissolving from naturally occurring

minerals in the ground.

 This chemical may damage the heart and

vascular system, and is associated with high blood pressure in

laboratory animals such as rats exposed to high levels during

their lifetimes.

 In humans,

 U.S. EPA believes that effects from

barium on blood pressure should not occur below

 2 parts per

million

 (ppm)

 in drinking water.

 U.S.

 EPA has

 set the drinking

water standard for barium at

 2 parts per million (ppm)

 to protect

against the risk of these adverse

 health effects.

 Drinking water

that meets the U.S. EPA standard

 is associated with little to none

of this risk and

 is considered safe with

 respect to barium.

17)

 Cadmium.

 The United States Environmental Protection Agency

 (U.S.

EPA)

 sets drinking water standards and has determined that cadmium

is

 a health concern

at

 certain levels of exposure.

 Food and the

smoking of tobacco are common sources of general exposure.

 This

inorganic metal

is

 a contaminant

 in the metals used to galvanize

pipe.

 It generally gets into water by corrosion of galvanized

pipes or by improper waste disposal.

 This chemical has been shown

to damage the kidney

 in animals such

 as rats and mice when the

animals are exposed at high levels over their lifetimes.

 Some

industrial workers who were exposed to relatively large amounts of

this chemical during working careers also suffered damage to the

kidney.

 U.S. EPA has

 set the drinking water standard

 for cadmium

at 0.005 parts per million

 (ppm)

 to protect against the risk of

these adverse health effects.

 Drinking water that meets the U.S.

EPA standard is associated with little to none of this risk and

is

considered safe with respect to cadmium.

18)

 Chromium.

 The United States Environmental

 Protection Agency

 (U.S.

EPA)

 sets drinking water standards and has determined that

chromium is

 a health concern at certain

 levels of exposure.

 This

inorganic metal occurs naturally

 in the ground and

is

 often used

in the electroplating

 of metals.

 It generally gets into water

from runoff from old mining operations

 and improper waste disposal

from plating operations.

 This chemical has been shown to damage

the kidney,

 nervous system,

 and the circulatory system of

laboratory animals such as rats and mice when the animals are

exposed at

 high levels.

 Some humans who were exposed to high

levels of this chemical

 suffered liver and kidney damage,

dermatitis and respiratory problems.

 U.S. EPA has set the

drinking water standard for chromium at 0.1 parts per million

(ppm) to protect against the risk of these adverse health effects.

Drinking water that meets the U.S. EPA standard is associated with

little to none of this risk and is considered safe with respect to

chromium.

19)

 Mercury

 The United States Environmental

 Protection Agency

 (U.S.

EPA)

 sets drinking water standards and has determined that mercury

is a health concern at certain levels of exposure.

 This inorganic

metal

 is used in electrical equipment and some water pumps.

It

usually gets into water as

 a result of improper waste disposal.

This chemical has been shown to damage the kidney of laboratory

 animals such as rats when the animals are exposed at high

 levels

164

over their lifetimes.

 U.S.

 EPA has

 set the drinking water

standard

 for mercury

 at 0.002

 parts per million

 (ppm)

 to protect

against the risk of these adverse health effects.

 Drinking water

that meets the U.S. EPA standard

 is associated with little to none

of this risk and

 is considered safe with respect to mercury.

20)

 Nitrate.

 The United States Environmental Protection Agency

 (U.S.

EPA)

 sets drinking water standards and has determined that nitrate

poses

 an acute health concern at certain levels of exposure.

Nitrate

 is used in fertilizer and

 is found

 in sewage and wastes

from human and/or farm animals and generally gets into drinking

water from those activities.

 Excessive levels of nitrate in

drinking water have caused serious illness and sometimes death

in

infants under six months of

 age.

 The serious

 illness

 in infants

is caused because nitrate

 is converted to nitrite in the body.

Nitrite interferes with the oxygen carrying capacity of the

child’s blood.

 This

 is an acute disease in that symptoms can

develop rapidly

in

 infants.

 In most cases,

 health deteriorates

over

 a period

 of days.

 Symptoms include shortness of breath and

blueness of the skin.

 Clearly,

 expert medical advice should be

sought immediately

 if these symptoms occur.

 The purpose of this

notice is to encourage parents and other responsible parties to

provide infants with an alternate

 source of drinking water.

 Local

and State health authorities are the best source

 for information

concerning alternate sources of drinking water

 for infants.

 U.S.

EPA has set the drinking water standard at 10 parts per million

(ppm)

 for nitrate to protect against the risk of these adverse

effects.

 U.S. EPA has also set

 a drinking water

 standard for

nitrite at

 1 ppm.

 To allow

 for the fact that the toxicity of

nitrate and nitrite are additive.

 U.S.

 EPA has also established a

standard for the

 sum of nitrate and nitrite at 10 ppm.

 Drinking

water that meets the U.S. EPA standard

 is associated with little

to none of this risk and

 is considered safe with respect to

nitrate.

21)

 Nitrite.

 The United States Environmental Protection Agency

 (U.S.

EPA)

 sets drinking water standards and has determined that nitrite

poses an acute health concern at certain levels of

 exposure.

 This

inorganic chemical

 is used

in

 fertilizers and

is

 found

 in sewage

and wastes

 from humans and/or farm animals and generally gets into

drinking water as

 a result of those activities.

 While excessive

levels of nitrite

 in drinking water have not been observed, other

sources of nitrite have caused serious illness

 and sometimes death

in infants under six months of age.

 The serious

 illness in

infants

 is caused because nitrite interferes with the oxygen

carrying capacity of the child’s blood.

 This is an acute disease

in that symptoms

 can develop rapidly.

 However,

 in most cases,

health deteriorates over

 a period of days.

 Symptoms

 include

shortness of breath and blueness of the skin.

 Clearly,

 expert

medical advice should be sought immediately if these symptoms

occur.

 The purpose of this notice

 is to encourage parents and

other responsible parties to provide infants with an alternate

source of drinking water.

 Local and State health authorities are

the best source for information concerning alternate sources of

drinking water for

 infants.

 U.S. EPA has

 set the drinking water

standard at

 1 part per million

 (ppm)

 for nitrite to protect

against the risk of these adverse effects.

 U.S. EPA has also set

a drinking water standard for nitrate (converted to nitrite in

 humans)

at

 10 ppm and for the sum of nitrate and nitrite at

10

ppm.

 Drinking water that meets the U,S.

 EPA standard

is

associated with little to none of this risk and

 is considered safe

with respect to nitrite.

165

22)

 Selenium.

 The United States Environmental Protection Agency

 (U.S.

EPA)

 sets drinking water standards and has determined that

selenium is a health concern

 at certain high levels of exposure.

Selenium

 is also an essential nutrient

 at low levels of exposure.

This inorganic chemical

 is found naturally

 in food and soils and

is used

 in electronics,

 photocopy operations,

 the manufacture of

glass,

 chemicals,

 drugs,

and

 as a fungicide and

a

 feed additive.

In humans, exposure to high levels of selenium over

a

 long period

of time has resulted in a number of adverse health effects,

including a loss of feeling and control

 in the arms and legs.

U.S. EPA has set the drinking water standard for selenium at 0.05

parts per million

 (ppm) to protect against the risk of these

adverse health effects.

 Drinking water that meets the U.S. EPA

standard is associated with little to none of this risk and is

considered safe with respect to selenium.

23)

 Acrylamide.

 The United States Environmental Protection Agency

(U.S.

 EPA)

 sets drinking water standards and has determined that

acrylamide is

 a health concern at certain

 levels of exposure.

Polymers made from acrylamide are sometimes used to treat water

supplies to remove particulate contaminants.

 Acrylamide has been

shown to cause cancer

in

 laboratory animals such as rats and mice

when the animals are exposed

 at high levels over their lifetimes.

Chemicals that cause cancer

 in laboratory animals also may

increase the risk of cancer

 in humans who are exposed over

 long

periods of time.

 Sufficiently large doses of acrylamide are known

to cause neurological injury.

 U.S. EPA has set the drinking water

standard for acrylamide using a treatment technique to reduce the

risk of cancer or other adverse health effects which have been

observed in laboratory animals.

 This treatment technique limits

the amount of acrylamide

 in the polymer and the amount of the

polymer

 which may be added to drinking water to remove

particulates.

 Drinking water systems which comply with this

treatment technique have little to no risk and are considered safe

with respect to acrylamide.

24)

 Alachlor.

 The United States Environmental

 Protection Agency

 (U.S.

EPA)

 sets drinking water standards and has determined that

alachlor is

 a health concern at certain

 levels of exposure.

 This

organic chemical

 is a widely used pesticide.

 When soil and

climatic conditions are favorable,

 alachlor may get into drinking

water by runoff

 into surface water or by leaching into

groundwater.

 This chemical has been

 shown to cause cancer

in

laboratory animals such as rats and mice when the animals are

exposed at high levels over their lifetimes. Chemicals that cause

cancer

 in laboratory animals also may increase the risk of cancer

in humans who are exposed over long periods of time.

 U.S. EPA has

set the drinking water standard for alachior at 0.002 parts per

million

 (ppm)

 to reduce the risk of cancer or other adverse health

effects which have been observed in laboratory animals.

 Drinking

water that meets thia standard

 is associated with little to none

of this risk and is considered safe with respect to alachlor.

25)

 Aldicarb.

 The United States Environmental Protection Agency

 (U.S.

EPA)

 sets drinking water standards and has determined that

aldicarb

is

 a health concern at certain

 levels of exposure.

Aldicarb

is

 a widely used pesticide.

 Under certain

 soil and

climatic

conditions

(e.g.,

sandy

soil

and

high

rainfall),

aldicarb

may leach into groundwater after normal agricultural applications

to crops such as potatoes or peanuts or may enter drinking water

supplies as

 a result of surface runoff.

 This

chemical

has

been

shown to damage the nervous system in laboratory animals

 such as

166

rats and dogs exposed to high levels.

 U.S. EPA has set the

drinking water standard

 for aldicarb at 0.003 parts per million

(ppm)

 to reduce the risk of adverse health effects.

 Drinking

water that meets this standard

 is associated with little to none

of this risk and

 is considered safe with respect to aldicarb.

26)

 Aldicarb sulfoxide.

 The United

 States Environmental Protection

Agency

 (U.S.

 EPA)

 sets drinking water standards

 and has determined

that aldicarb

sulfoxide

health

concern

certain

levels

exposure.

 Aldicarb is

 a widely used pesticide.

 Aldicarb

aulfoxide

 in groundwater is primarily

 a breakdown product of

aldicarb.

 Under certain soil

 and climatic conditions

 (e.g.,

 sandy

soil and high rainfall),

 aldicarb sulfoxide may

 leach into

groundwater after normal agricultural applications to crops such

as potatoes or peanuts or may enter drinking water supplies as

a

result of surface runoff.

 This chemical has been shown to damage

the nervous system in laboratory animals such as rats and dogs

exposed to high levels.

 U.S. EPA

 has set the drinking water

standard for aldicarb

 sulfoxide at 0.004 parts per million

 (ppm)

to reduce the risk of adverse health effects.

 Drinking water that

meets

 this standard

 is associated with

 little to none of this risk

and

 is considered safe with respect to aldicarb sulfoxide.

27)

 Aldicarb sulfone.

 The United States Environmental Protection

Agency (U.S.

 EPA)

 sets drinking water standards and has determined

that aldicarb sulfone

is

 a health concern at certain levels of

exposure.

 Aldicarb is

 a widely used pesticide.

 Aldicarb sulfone

in groundwater

 is primarily a breakdown product

 of aldicarb.

Under certain soil and climatic conditions

 (e.g.,

 sandy soil and

high rainfall),

 aldicarb sulfone may leach into groundwater after

normal agricultural applications

 to crops such as potatoes

or

peanuts or may enter drinking water supplies as

 a result of

surface runoff.

 This chemical has been

 shown to damage the

 nervous system in laboratory animals

 such as rats and dogs exposed

to high levels.

 U.S. EPA has set the drinking water standard for

aldicarb sulfone at 0.002 parts per million

 (ppm)

 to reduce the

risk of adverse health effects.

 Drinking water that meets this

standard

 is associated with little to none of this risk and

is

considered safe with respect to aldicarb sulfone.

28)

 Atrazirie.

 The United States Environmental Protection Agency (U.S.

EPA)

 sets drinking water standards and has determined that

atrazine

 is a health concern at certain

 levels of exposure.

 This

organic chemical

 is a herbicide.

 When soil

 and climatic

conditions are favorable,

 atrazine may get into drinking water by

runoff into surface water or by leaching into groundwater.

 This

chemical has been shown to affect offspring of rats and the heart

of dogs.

 U.S. EPA has set the drinking water standard for

atrazine at 0.003 parts per million

 (ppm)

 to protect against the

risk of these adverse health effects.

 Drinking water that meets

the U.S. EPA standard

 is associated with little to none of this

risk and

 is considered safe with respect to atrazine.

29)

 Carboforan.

 The United States Environmental Protection Agency

(U.S.

 EPA) sets drinking water standards and has determined that

carbofuran is

 a health concern at certain levels of exposure.

This organic chemical

 is a pesticide.

 When soil and climatic

conditions are favorable,

 carbofuran may

 get into drinking water

by runoff

 into surface water or by leaching into groundwater.

This chemical has been shown to damage the nervous and

reproductive systems of laboratory animals such as rats and mice

exposed at high levels over their lifetimes.

 Some humans who were

167

exposed to relatively

 large amounts of this chemical during their

working careers also suffered damage to the nervous system.

Effects on the nervous system are generally

 rapidly reversible.

U.S. EPA has set the drinking water standard for carbofuran at

0.04 parts per million

 (ppm) to protect against the risk of these

adverse health effects.

 Drinking water that meets the U.S.

EPA

standard

 is associated with little to none of this risk and

is

considered safe with respect to carbofuran.

30)

 Chlordane,

 The United States Environmental Protection Agency

(U.S.

 EPA)

 sets drinking water standards and has determined that

chlordane is

 a health concern at certain levels of exposure.

 This

organic chemical

is

 a pesticide used to control termites.

Chlordane is not very mobile in soils.

 It usually gets

 into

drinking water after application near water supply intakes or

wells.

 This chemical has been shown to cause cancer in laboratory

animals such as rats and mice when the animals are exposed at high

levels over their lifetimes.

 Chemicals that cause cancer

in

laboratory animals also may increase the risk of cancer

 in humans

who are exposed over long periods

 of time.

 U.S. EPA has set the

drinking water standard

 for chlordane at

 0.002 parts per million

(ppm) to reduce the risk of cancer or other adverse health effects

which have been observed in laboratory animals. Drinking water

that meets the U.S.

 EPA standard

 is associated with

 little to none

of this risk and

 is considered safe with respect to chlordane.

31)

 Dibromochloropropane

 (DBCP).

 The United States Environmental

Protection Agency

 (U.S.

 EPA)

 sets drinking water standards and has

determined that DBCP

is

 a health concern at certain

 levels of

exposure.

 This organic chemical was once a popular pesticide.

When soil and climatic conditions are favorable,

 DBCP may get into

drinking water by runoff

 into surface water or by leaching

 into

groundwater.

 This chemical

 has been shown to cause cancer in

laboratory animals such as rats and mice when the animals are

 exposed at

 high levels over their lifetimes.

 Chemicals that cause

cancer in laboratory animals also may increase the risk of cancer

in humans who are exposed over long periods of time.

 U.S. EPA has

set the drinking water standard

 for DBCP at 0.0002 parts per

million

 (ppm)

 to reduce the risk of cancer or other

 adverse health

effects which have been observed in laboratory animals.

 Drinking

water that meets the U.S. EPA standard

 is associated with little

to none of this risk and is considered safe with respect to DBCP.

32)

 o—Dichlorobenzene,

 The United States Environmental Protection

Agency

 (U.S. EPA)

 sets drinking water standards and has determined

that o—dichlorobenzene is

 a health concern at certain levels of

exposure.

 This organic chemical

 is used as

 a solvent in the

production of pesticides and dyes.

 It generally gets

 into water

by improper waste disposal.

 This chemical has been shown to

damage the liver, kidney and the blood cells of laboratory animals

such as rats and mice exposed to high levels during their

lifetimes.

 Some industrial workers who were exposed to relatively

large amounts of this chemical during working careers also

suffered damage to the liver,

 nervous system, and circulatory

system.

 U.S. EPA has set the drinking water standard for

o—dichlorobenzene at 0.6 parts per million

 (ppm)

 to protect

against the risk of these adverse health effects.

 Drinking water

that meets the U.S. EPA standard is associated with little to none

of this risk and is considered safe with respect to

o—dichlorobenzene.

33)

 cis—l,2—Dichloroethylene.

 The United States Environmental

168

Protection Agency

 (U.S.

 EPA) establishes drinking water standards

and has determined that cis—1,2—dichloroethylene is

 a health

concern at certain levels of exposure.

 This organic chemical

is

used as a solvent and intermediate in chemical production.

It

generally gets into water by improper waste disposal.

 This

chemical

 has been shown to damage the liver, nervous

 system,

and

circulatory system of laboratory animals such as rats and mice

when exposed at high levels over their

 lifetimes.

 Some humans who

were exposed to relatively large amounts of this chemical

 also

suffered damage to the nervous

 system.

 U.S. EPA has

 set the

drinking water standard for cis—1,2—dichloroethylene at 0.07 parts

per million

 (ppm)

 to protect

 against the risk of these adverse

health effects.

 Drinking water that meets the U.S. EPA standard

is associated with little to none of this risk and is considered

safe with respect to cis—1,2—dichloroethylene.

34)

 trans-1,2-Dichloroethylene.

 The United States Environmental

Protection Agency

 (U.S.

 EPA) establishes drinking water standards

and has determined that trans—1,2—dichloroethylene

is

 a health

concern at certain levels of exposure.

 This organic chemical

is

used as

 a solvent and intermediate

 in chemical production.

It

generally gets into water by improper waste disposal.

 This

chemical

 has been shown to damage the liver,

 nervous system,

and

the circulatory system of laboratory animals such as rats and mice

when exposed

 at high levels over their lifetimes.

 Some humans who

were exposed to relatively large amounts of this chemical also

suffered damage to the nervous system.

 U.S.

 EPA has

 set the

drinking

 water standard for trans—1,2—dichloroethylene at 0.1

parts per million

 (ppm)

 to protect against the risk of these

adverse health effects.

 Drinking water

 that meets the U.S. EPA

standard

 is associated with little to none of this risk and

is

considered

 safe with respect to trans—1,2—dichloroethylene.

35)

 1,2—Dichloropropane.

 The United States Environmental Protection

Agency

 (U.S.

 EPA)

 sets drinking water standards and has determined

that 1,2—dichloropropane is a health

 concern at certain

 levels of

exposure.

 This organic chemical is used as a solvent and

pesticide.

 When soil and climatic conditions are favorable,

 1,2—

dichloropropane may get into drinking water by runoff into surface

water or by leaching into groundwater.

 It may also get into

drinking water through improper waste disposal.

 This chemical has

been shown to cause cancer in laboratory animals such as rats and

mice when the animals are exposed

 at high levels over their

lifetimes.

 Chemicals that cause cancer

 in laboratory animals also

may

increase

the

risk

cancer

humans

who

are

exposed

over

long

periods

time.

U.S.

EPA

has

 set the drinking water

standard

 for 1,2—dichloropropane at 0.005 parts per million

 (ppm)

to reduce the risk of cancer or other adverse health effects which

have been observed in laboratory animals.

 Drinking water that

meets the U.S. EPA standard is associated with

 little to none of

this risk and is considered safe with respect to

1,2—dichloropropane.

36)

 2,4—D.

 This contaminant

 is subject to a “additional State

requirement”.

 The supplier shall give the following notice

if

the

level exceeds the Section 611.311 HCL.

 If the level exceeds the

Section 611.310 MCL, but not that of Section 611.311, the supplier

shall give a general notice under Section 611.854.

The United States Environmental Protection Agency (U.S.

 EPA)

 sets

drinking

water

standards

and

has

determined

that

2,4—D

health

concern at certain levels of exposure.

 This organic chemical

is

169

used as

 a herbicide and to control algae

 in reservoirs.

 When soil

and climatic conditions are favorable,

 2,4-0 may get into drinking

water by runoff into surface water or by leaching into

groundwater.

 This chemical has been shown to damage the liver and

kidney of

 laboratory animals such as rats exposed at high levels

during their

 lifetimes.

 Some humans who were exposed to

relatively large amounts

 of this chemical also suffered damage to

the nervous

 system.

 U.S. EPA has set the drinking water standard

for 2,4-0

 at 0.07 parts per million

 (ppm)

 to protect against the

risk of these adverse health effects.

 Drinking water that meets

the U.S. EPA standard

 is associated with little to none of this

risk and

 is considered safe with respect to 2,4—0.

37)

 Epichlorohydrin.

 The United States Environmental Protection

Agency

 (U.S. EPA)

 sets drinking water standards and has determined

that epichiorohydrin

is

 a health concern

 at certain levels of

exposure.

 Polymers made from epichiorohydrin are sometimes used

in the treatment of water supplies as

 a flocculent to remove

particulates.

 Epichiorohydrin generally gets into drinking water

by improper use of these polymers.

 This chemical has been shown

to cause cancer in laboratory animals such as rats and mice when

the animals are exposed at high levels over their

 lifetimes.

Chemicals that cause cancer in

 laboratory animals also may

increase the risk of cancer

 in humans who are exposed over long

periods of time.

 U.S.

 EPA has

 set the drinking water standard

for

epichlorohydrin using a treatment technique to reduce the risk of

cancer or other adverse health effects which have been observed

in

laboratory animals.

 This treatment technique limits

 the amount of

epichlorohydrin in the polymer and the amount of the polymer which

may be added to drinking water as

 a flocculent to remove

particulates.

 Drinking water systems which comply with this

treatment technique have

 little to no risk and are considered safe

with

 respect to epichlorohydrin.

38)

 Ethylbenzene.

 The United States Environmental Protection Agency

 (U.S.

 EPA)

 sets drinking water standards and has determined

ethylbenzene

 is a health concern

 at certain levels of exposure.

This organic chemical

is

 a major

 component of gasoline.

It

generally gets

 into water by improper waste disposal or leaking

gasoline tanks.

 This chemical has been shown to damage the

kidney,

 liver, and nervous system of laboratory animals such as

rats exposed to high levels during their lifetimes.

 U.S. EPA has

set the drinking water standard for ethylbenzene at 0.7 parts per

million

 (ppm) to protect against the risk of these adverse health

effects.

Drinking

water

that

 meets the U.S. EPA standard is

associated with little to none of this risk and is considered safe

with respect to ethylbenzene.

39)

 Ethylene dibromide

 (EDB).

 The United States Environmental

Protection Agency (U.S.

 EPA) sets drinking water standards and has

determined that EDB

is

a

 health concern at certain levels of

exposure.

 This organic

 chemical was once a popular pesticide.

When soil and climatic conditions are favorable,

 EDB may get

 into

drinking water by runoff

 into surface water or by leaching into

groundwater.

 This chemical has been shown to cause cancer in

laboratory animals such as rats and mice when the animals are

 exposed at high levels over their lifetimes.

 Chemicals that cause

cancer

 in laboratory animals also may increase the risk of cancer

in humans who are exposed over long periods of time.

 U.S. EPA has

set the drinking water standard for EDB at 0.00005 parts per

million

 (ppm) to reduce the risk of cancer or other adverse health

effects which have been observed in laboratory animals.

 Drinking

170

water that meets this standard

 is associated with

 little to none

of this risk and

 is considered safe with respect

 to EDS.

40)

 Heptachlor.

 This contaminant

 is subject to

 a “additional

 State

requirement”.

 The supplier

 shall give the following notice

 if the

level exceeds the Section 611.311 MCL.

 If the level exceeds

the

Section 611.310 MCL,

but

 not that of Section 611.311,

 the supplier

shall give a general notice under Section 611.854.

The United States Environmental Protection Agency

 (U.S.

 EPA)

 sets

drinking water standards

 and has determined that heptachlor

is

a

health concern at certain levels

 of exposure,

 This organic

chemical

was

once

popular

pesticide.

 When soil and climatic

 conditions are favorable,

 heptachlor may get

 into drinking water

by runoff

 into surface water or by leaching into groundwater.

This chemical has been shown to cause cancer

 in laboratory animals

such as rats and mice when the animals are exposed at high levels

over their lifetimes.

 Chemicals that cause cancer

 in laboratory

animals also may increase the risk of cancer in humans who are

exposed over long periods of time.

 U.S.

 EPA has

 set the drinking

water standards

 for heptachlor at 0.0004 parts per million

 (ppm)

to reduce the risk of cancer or other adverse health effects which

have been observed in laboratory animals.

 Drinking water that

meets this standard

 is associated with little to none of this risk

and

 is considered safe with respect to heptachlor.

41)

 Heptachior epoxide.

 This contaminant

 is subject to

a

 “additional

State requirement”.

 The supplier

 shall give the following notice

if the level exceeds the Section 611.311 MCL.

 If the level

exceeds the Section 611.310 MCL, but not that of Section 611.311,

the supplier shall give

 a general notice under Section 611.854.

The United States Environmental

 Protection Agency

 (U.S.

 EPA)

 sets

drinking water standards and has determined that heptachlor

epoxide

 is a health concern at certain levels of exposure.

 This

organic chemical was once

 a popular pesticide.

 When soil and

climatic conditions are favorable,

 heptachlor epoxide may get into

drinking water by runoff

 into surface water or by leaching

 into

groundwater.

 This chemical has been shown to cause cancer in

laboratory animals such as rats and mice when the animals are

exposed at high levels over their lifetimes.

 Chemicals that cause

cancer

 in laboratory animals

 also may increase the risk of

 cancer

in humans who are exposed over

 long periods of time.

 U.S.

 EPA has

set the

drinking

water

standards

 for heptachlor epoxide at 0.0002

parts per million

 (ppm)

 to reduce the risk of cancer or other

adverse health effects

 which have been observed

 in laboratory

animals.

 Drinking water that meets this standard

 is associated

with little to none of this risk and

 is considered safe with

respect to heptachlor epoxide.

42)

 Lindane.

 The United States Environmental Protection Agency

 (U.S.

EPA)

 sets drinking water standards and has determined that

 lindane

is

 a health concern at certain levels of exposure.

 This organic

chemical is used

as

 a pesticide.

 When

 soil and climatic

conditions are favorable, lindane may get into drinking water by

 runoff into surface water or by leaching into groundwater.

 This

chemical has been shown to damage the liver,

 kidney, nervous

system,

 and immune system of laboratory animals such as rats,

 mice

and dogs exposed at high levels during their

 lifetimes.

 Some

humans who were exposed to relatively large amounts of this

chemical also suffered damage to the nervous system and

circulatory system.

 U.S. EPA has established the drinking water

171

standard

for

 lindane at

 0.0002 parts per million

 (ppm)

 to protect

against the risk of these adverse health effects.

 Drinking water

that meets the U.S. EPA standard

 is associated with

 little to none

of this risk and

 is considered safe with respect to

 lindane.

43)

 Methoxychlor.

 The United States Environmental Protection Agency

(U.S.

 EPA)

 sets drinking water standards and has determined that

methoxychlor

is

 a health concern at certain levels of exposure.

This organic chemical

 is used as

 a pesticide.

 When soil and

climatic

 conditions are

 favorable, methoxychior may get into

drinking water by runoff

 into surface water or by leaching into

groundwater.

 This chemical has been shown to damage the liver,

kidney,

nervous

 system, and reproductive system of laboratory

animals such as rats exposed

at

 high levels during their

lifetimes.

It

 has also been shown to produce growth retardation

in rats.

 U.S. EPA has

 set the drinking water standard for

methoxychlor at 0.04 parts per million

 (ppm)

 to protect against

the risk

 of these adverse

 health effects.

 Drinking water that

meets the U.S.

 EPA standard

 is associated with

 little to none of

this risk and

 is considered safe with respect to methoxychlor.

44)

 Monochlorobenzene.

 The United States Environmental Protection

Agency

 (U.S.

 EPA)

 sets drinking water standards and has determined

that inonochlorobenzene

is

 a health concern at certain levels of

exposure.

This

organic

chemical

used

as

 a solvent.

It

generally gets

 into water by improper waste disposal.

 This

chemical

 has been shown to damage

 the liver,

 kidney and nervous

system of

 laboratory animals such

 as rats and mice exposed to high

levels during their lifetimes.

 U.S. EPA has set the drinking

water standard for monochlorobenzene

 at 0.1

 parts per million

(ppm)

 to protect against the risk of these adverse health effects.

 Drinking water that meets the U.S.

 EPA standard

 is associated with

little to none of this risk and

 is considered safe with respect to

monochlorobenzene.

45)

 Polychlorinated biphenyls

 (PCBs).

 The United States Environmental

Protection Agency

 (U.S.

 EPA)

 sets drinking water standards and has

determined that polychlorinated biphenyls

 (PCBs)

 are a health

concern

certain

levels

exposure.

These

organic

chemicals

were once widely used in electrical transformers and other

industrial equipment.

 They generally get into drinking water by

improper waste disposal or leaking electrical industrial

equipment.

 This chemical has been shown to cause cancer in

laboratory

animals

such

rats

 and mice when the animals are

exposed at high levels over their lifetimes.

 Chemicals that

 cause

cancer in laboratory animals also may increase the risk of cancer

in humans who are exposed over long periods of

 time.

 U.S. EPA has

set the drinking water standard for PCBs at 0.0005 parts per

million

 (ppm) to reduce the risk of cancer or other adverse health

effects

which

have

been

observed

 laboratory animals.

 Drinking

 water that meets this standard is associated with

 little to

 none

of this risk and

 is considered safe with respect to PCBs.

46)

 Pentachlorophenol.

 The United States Environmental Protection

Agency

 (U.S.

 EPA)

 sets drinking water standards and has determined

that pentachlorophenol

is

 a health concern at certain levels of

exposure.

 This organic chemical

 is widely used as

 a wood

preservative,

 herbicide,

 disinfectant,

 and defoliant.

It

generally gets

 into drinking water by runoff into surface water or

leaching into groundwater.

 This chemical has been shown to

produce adverse reproductive effects and to damage the liver and

kidneys of laboratory animals such as rats and mice when the

172

animals

are

exposed

high

levels

over

their

lifetimes.

Some

humans who were exposed to relatively large amounts of thia

chemical also suffered damage to the

 liver and kidneys.

 This

chemical has been shown to cause cancer

 in laboratory animals such

as rats and mice when the animals are exposed

at

 high levels over

their lifetimes.

 Chemicals that cause cancer

 in laboratory

animals also may increase the risk of cancer in humans who

are

exposed over long periods of time.

 U.S. EPA has

 set the drinking

water standard for pentachlorophenol at 0.001 parts per million

(ppm)

 to reduce the risk of adverse health effects.

 Drinking

water that meets this standard

 is associated with little to none

of this risk and

 is considered safe with respect to pentachloro-

phenol.

47)

 Styrene.

 The United States Environmental Protection Agency

 (U.S.

EPA)

 sets drinking water standards and has determined that styrene

is

 a health concern at certain levels of exposure.

 This organic

chemical

 is commonly used to make plastics and is sometimes a

component of resins used for drinking water treatment.

 Styrene

may get into drinking water from improper waste disposal.

 This

chemical

 has been shown to damage the liver and nervous

 system

in

laboratory animals when exposed

 at high levels during their

lifetimes.

 U.S. EPA has

 set the drinking water standard for

styrene at 0.1 parts per million

 (ppm)

 to protect against the risk

of these adverse health effects. Drinking water that meets the

U.S.

 EPA standard

 is associated with little to none of this risk

and

 is considered safe with respect to styrene.

48)

 Tetrachloroethylene.

 The United States Environmental Protection

Agency

 (U.S. EPA)

 sets drinking water standards

 and has determined

that tetrachloroethylene

is

 a health concern at certain levels of

exposure.

 This organic chemical has been a popular solvent,

particularly for dry cleaning.

 It generally gets into drinking

water by

 improper waste disposal.

 This chemical has been shown to

cause cancer in laboratory animals such as rats and mice when the

animals are exposed at high levels over their

 lifetimes. Chemicals

that cause cancer

 in laboratory animals also may

 increase the risk

of cancer in humans who are exposed over long periods of time.

U.S.

 EPA has set the drinking water standard for

tetrachloroethylene at 0.005 parts per million

 (ppm)

 to reduce the

risk of cancer or other adverse health effects which have been

observed in laboratory animals.

 Drinking water that meets

 this

standard

 is associated with

 little to none of this

 risk and is

considered safe with respect

 to tetrachloroethylene.

49)

 Toluene.

 The United States Environmental Protection Agency

 (U.S.

EPA)

 sets drinking water standards and has determined that toluene

is

 a health concern at certain levels of exposure.

 This organic

chemical

 is used as

 a solvent and in the manufacture of gasoline

for airplanes.

 It generally gets into water by improper waste

 disposal or leaking underground storage tanks.

 This chemical has

been shown to damage the kidney, nervous system,

 and circulatory

system of

 laboratory animals such as rats and mice exposed to high

levels during their lifetimes.

 Some industrial workers who were

exposed to relatively large amounts of this chemical during

working careers also suffered damage to the liver, kidney and

nervous system.

 U.S. EPA has set the drinking water standard for

toluene at

 1 part per million

 (ppm)

 to protect

 against the risk of

these adverse health effects.

 Drinking water that meets the U.S.

EPA standard is associated with little to none of this risk and is

considered safe with respect

 to toluene.

173

50)

 Toxaphene.

 The United States Environmental Protection Agency

(U.S.

 EPA)

 sets drinking water standards and has determined that

toxapherie

 is a health concern at

 certain levels of exposure.

 This

organic chemical was once

 a pesticide widely used on cotton,

 corn,

soybeans,

 pineapples and other crops.

 When soil and climatic

conditions are favorable,

 toxaphene may get into drinking water by

runoff into surface water or by

 leaching into groundwater.

 This

chemical has been shown to cause cancer in laboratory animals such

 as rats and mice when the animals are exposed at high

 levels over

their

 lifetimes. Chemicals that cause cancer in laboratory animals

also may increase the risk of cancer in humans who are exposed

over long periods of time.

 U.S. EPA has set the drinking water

standard for toxaphene at 0.003 parts per million

 (ppm)

 to reduce

the risk of cancer or other adverse health effects which have been

observed in laboratory animals.

 Drinking water that meets this

standard

 is associated with little to none of this risk and is

considered safe with respect to toxaphene.

51)

 2,4,5—TP.

 The United States Environmental Protection Agency (U.S.

EPA)

 sets drinking water standards and has determined that

2,4,5—TP is

 a health concern at certain levels of exposure.

 This

organic

 chemical

 is used as

 a herbicide.

 When soil and climatic

conditions are favorable,

 2,4,5—TP may get

 into drinking water by

runoff into surface water or by leaching into groundwater.

 This

chemical

 has been shown to damage the liver and kidney of

laboratory animals such as rats and dogs exposed to high

 levels

during their lifetimes.

 Some industrial workers who were exposed

to relatively

 large amounts of this chemical during working

careers also suffered damage to the nervous system.

 U.S. EPA has

set the drinking water standard for 2,4,5—TP

 at 0.05 parts per

million

 (ppm) to protect against the risk of these

 adverse health

effects.

 Drinking water that meets the U.S. EPA standard

is

associated with

 little to none of this risk and is considered safe

with respect to 2,4,5—TP.

52)

 Xylenes.

 The United States Environmental Protection Agency

 (U.S.

EPA) sets drinking water standards and has determined that xylene

is

 a health concern at certain levels of exposure,

 This organic

chemical

 is used in the manufacture of gasoline for airplanes and

as a solvent for pesticides,

 and as

 a cleaner and degreaser of

metals.

 It usually gets into water by improper waste disposal.

This chemical has been shown to damage the liver,

 kidney and

nervous system of laboratory animals such as rats and dogs exposed

to high levels during their lifetimes.

 Some humans who were

exposed to relatively large amounts of this chemical also suffered

damage to the nervous

 system.

 U.S. EPA has set the drinking water

standard for xylene at 10 parts per million (ppm)

 to protect

against the risk of these adverse health effects.

 Drinking water

that meets the U.S. EPA standard

 is associated with little to none

of this risk and

 is considered safe with respect to xylene.

53)

 Antimony.

 The United States Environmental Protection Agency

 (U.S.

 EPA) sets drinking water standards and has determined that

antimony

is

 a health concern at certain levels of exposure.

 This

inorganic chemical occurs naturally

 in soils, ground water, and

surface water and is often used

 in the flame retardant industry.

It

 is also used in ceramics and glass, batteries,

 fireworks,

and

explosives.

 It may get

 into drinking water through natural

weathering of rock, industrial production, municipal waste

disposal,

 or manufacturing processes.

 This chemical has been

shown to decrease longevity,

 and altered blood levels

of

cholesterol and glucose

 in laboratory animals such as rats exposed

174

to high

 levels during their lifetimes.

 U.S.

 EPA has

 set the

drinking water standard

 for antimony at 0.006 parts per million

(ppm)

 to protect against the risk

 of these adverse health effects.

Drinking water that meets the U.S. EPA standard

 is associated with

little to none of this risk and

 is considered safe with respect to

antimony.

54)

 Beryllium.

 The United States Environmental Protection Agency

(U.S.

 EPA)

 sets drinking water standards

 and has determined that

beryllium is

 a health concern at certain

 levels of exposure.

 This

inorganic chemical occurs naturally in soils,

 ground water,

and

surface water and

 is often used

 in electrical equipment and

electrical components.

 It generally gets into water from runoff

from mining operations,

 discharge from processing plants,

and

improper waste disposal.

 Beryllium compounds have been associated

with damage to the bones and lungs and induction of cancer in

laboratory animals such as rats and mice when the animals

are

exposed

 to high levels during their lifetimes.

 There

is

 limited

evidence to suggest that beryllium may pose

 a cancer risk via

drinking water exposure.

 Therefore,

 U.S. EPA based the health

assessment on noncancer effects with and extra uncertainty

 factor

to account for possible carcinogenicity.

 Chemicals that cause

cancer in laboratory animals also may increase the risk of cancer

in humans who are exposed over

 long periods of time.

 U.S.

 EPA has

set the drinking water standard

 for beryllium at 0.004 parts per

million

 (ppm)

 to protect against the risk of

 these adverse health

effects.

 Drinking water that meets the U.S. EPA standard

is

associated with

 little to none of

 this risk and

 is considered safe

with respect to beryllium.

55)

 Cyanide.

 The United

 States Environmental Protection Agency

 (U.S.

EPA)

 sets drinking water standards and has determined that cyanide

is

 a health concern at certain levels of exposure.

 This

 inorganic

chemical

 is used in electroplating,

 steel processing,

 plastics,

synthetic fabrics, and fertilizer products.

 It usually gets into

water as

 a result of improper waste disposal.

 This chemical has

been shown to damage the spleen,

 brain,

 and liver of humans

fatally poisoned with cyanide.

 U,S. EPA has

 set the drinking

water standard for cyanide at 0.2 parts per million

 (ppm) to

protect against the risk of these adverse health effects.

Drinking water that meets the U.S.

 EPA standard

 is associated with

little to none of this risk and

 is considered safe with respect to

cyanide.

56)

 Nickel.

 The United States Environmental Protection Agency

 (U.S.

EPA)

 sets drinking water standards and has determined that nickel

is

 a health concern at certain levels of exposure.

 This inorganic

chemical occurs naturally in

 soils, ground water,

 and surface

water and is often used

 in electroplating,

 stainless steel,

and

alloy products.

 It generally gets

 into water from mining and

refining

 operations.

 This chemical has been shown to damage the

heart and liver in laboratory animals when the animals are exposed

to high levels over their lifetimes.

 U.S. EPA has set the

drinking water standard

 at 0.1 parts per million

 (ppm)

 for nickel

to protect against the risk of these adverse health effects.

Drinking water that meets the U.S.

 EPA standard

 is associated with

little to none of this risk and is considered safe with respect to

nickel.

57)

 Thallium.

 The United States Environmental Protection Agency

 (U.S.

EPA)

 sets drinking water standards and has determined that

thallium is

 a health concern

 at certain high levels of exposure.

175

This inorganic chemical occurs naturally

 in soils,

 ground water,

and surface water and is used in electronics, pharmaceuticals,

and

the manufacture of glass and alloys.

 This chemical has been shown

to damage the kidney,

 liver, brain,

 and intestines of laboratory

animals when the animals are exposed to high levels during their

lifetimes.

 U.S. EPA has set the drinking water standard for

thallium at 0.002 parts per million

 (ppm)

 to protect against the

risk of these adverse health effects.

 Drinking water that meets

the U.S.

 EPA standard

 is associated with

 little to none of this

risk and is considered safe with respect to thallium.

58)

 Benzo(a)pyrene.

 The United States Environmental Protection Agency

(U.S.

 EPA)

 sets drinking water

 standards and has determined that

benzo(a)pyrene

is

 a health concern at certain levels of exposure.

Cigarette smoke and charbroiled meats are common sources of

general

 exposure.

 The major source of benzo(a)pyrene

 in drinking

water is the leaching from coal tar lining and sealants in water

storage tanks.

 This chemical

 has been

 shown to cause cancer in

animals such as

 rats and mice when the animals are exposed to high

levels.

 U.S. EPA has set the drinking water standard

 for benzo—

(a)pyrene at 0.0002 parts per million

 (ppm) to protect against the

risk of cancer.

 Drinking water that meets the U.S. EPA standard

is associated with little to none of this risk and

 is considered

safe with respect to benzo(a)pyrene.

59)

 Dalapon.

 The United States Environmental Protection Agency

 (U.S.

EPA)

 sets drinking water standards

 and has determined that dalapon

is

 a health concern at certain levels of exposure.

 This organic

chemical is

 a widely used herbicide.

 It may get

 into drinking

water

 after application

 to control grasses

 in crops, drainage

 ditches,

 and along railroads.

 This chemical has been associated

with damage to the kidney and liver

 in laboratory animals when the

animals

 are exposed to high levels during their

 lifetimes.

 U.S.

EPA has

 set the drinking water standard

 for dalapon at 0.2 parts

per million

 (ppm)

 to protect against the risk of these adverse

health effects.

 Drinking water that meets the U.S.

 EPA standard

is associated with little to none of this risk and is considered

safe with respect to dalapon.

60)

 Dichloromethane.

 The United States Environmental Protection

Agency

 (U,S.

 EPA) sets drinking water standards and has determined

that dichloromethane (methylene chloride)

is

 a health concern at

certain

 levels of exposure.

 This organic chemical

 is a widely

used solvent.

 It is used

 in the manufacture of paint remover,

as

a metal degreaser, and as an aerosol propellant.

 It generally

gets into water after improper discharge of waste disposal.

 This

chemical has been shown to cause cancer in laboratory animals such

as rats and mice when the animals are exposed to high levels

during their lifetimes.

 Chemicals that cause cancer in laboratory

animals also may increase the risk of cancer

 in humans who are

exposed over long periods of time.

 U.S. EPA has set the drinking

 water standard for dichloromethane at 0.005 parts

 per million

(ppm)

 to protect against the risk of cancer or other adverse

health effects.

 Drinking water that meets the U.S.

 EPA standard

is associated with little to none of this risk and

 is considered

safe with respect to dichloromethane.

61)

 Di(2-ethylhexyl)adipate.

 The United States Environmental

Protection Agency (U.S.

 EPA) sets drinking water standards and has

determined that di(2—ethylhexyl)adipate

is

 a health concern at

certain levels of exposure.

 Di(2—ethylhexyl)adipate

 is a widely

used plasticizer in

 a variety of products,

 including synthetic

176

rubber,

 food packaging materials,

 and cosmetics.

 It may get

 into

drinking water after

 improper waste disposal.

 This chemical has

been shown to damage

 the liver and testes

 in laboratory animals

such as rats

 and mice when the animals are exposed to high

 levels.

U.S.

 EPA has

 set the

 drinking water standard

 for di(2—ethylhexyl)—

adipate at 0.4 parts per million

 (ppm)

 to protect against the risk

of adverse health

 effects that have been observed in laboratory

animals.

 Drinking water that meets the U.S.

 EPA standard

is

associated with

 little to none of this risk and

 is considered safe

with respect to di(2—ethylhexyl)adipate.

62)

 Di(2—ethylhexyl)phthalate.

 The United States Environmental

Protection Agency

 (U.S. EPA)

 sets drinking water standards and has

determined that di(2—ethylhexyl)phthalate

is

 a health concern at

certain levels of exposure.

 Di(2-ethylhexyl)phthalate

is

 a widely

used plasticizer, which

 is primarily used in the production of

polyvinyl chloride (PVC)

 resins.

 It may get

 into drinking water

after improper waste disposal.

 This chemical has been shown to

cause cancer in laboratory animals such as rats and mice when the

animals are exposed to high levels during their lifetimes.

 U.S.

EPA has set the drinking water standard for di(2—ethylhexyl)—

phthalate at 0.004k parts per million

 (ppm)

 to protect against the

risk of cancer or other adverse health effects which have been

abserved

 in laboratory animals.

 Drinking water that meets the

U.S.

 EPA standard

 is associated with little to none of this risk

and

 is considered safe with respect to di(2—ethylhexyl)phthalate.

63)

 Dinoseb.

 The United States Environmental Protection Agency

 (U.S.

EPA)

 sets drinking water standards and has determined that dinoseb

is

 a health concern at certain

 levels of exposure.

 Dinoseb

is

a

widely used pesticide and generally gets into water after

application on orchards,

 vineyards,

 and other crops.

 This

chemical has been shown to damage the thyroid and reproductive

organs

 in laboratory animals such as

 rats exposed to high

 levels.

U.S. EPA has set the drinking water standard

 for dinoseb

at

 0.007

parts per million

 (ppm)

 to protect against the risk of these

adverse health effects.

 Drinking water that meets the U.S. EPA

standard is associated with little to none of this risk and

is

considered safe with respect to dinoseb.

64)

 Diguat.

 The United States Environmental Protection Agency

 (U.S.

EPA)

 sets drinking water standards and has determined that diquat

is

 a health concern

 at certain levels of exposure.

 This organic

chemical

is

 a herbicide used to control terrestrial and aquatic

weeds.

 It may get

 into drinking water by runoff into surface

water.

 This chemical has been shown to damage the liver,

 kidney,

and gastrointestinal tract

 and causes cataract formation in

laboratory animals such as dogs and rats exposed

 at high levels

over their

 lifetimes.

 U.S. EPA has

 set the drinking water

standard for diguat

at

 0.02 parts per million

 (ppm)

 to protect

against the risk of these adverse health effects.

 Drinking water

that meets the U.S. EPA standard

 is associated with little to none

of this risk and is considered safe with

 respect

 to diquat.

65)

 Endothall.

 The United States Environmental Protection Agency

(U.S.

 EPA) sets drinking water standards

 and has determined that

endothall is a health concern at certain levels of exposure.

 This

organic chemical

is

 a herbicide used to control terrestrial and

aquatic weeds.

 It may get into drinking water by runoff into

surface water.

 This chemical has been

 shown to damage the liver,

kidney, gastrointestinal tract,

 and reproductive system of

laboratory animals such

 as rats and mice exposed at high levels

177

over their

 lifetimes.

 U.S. EPA has

 set the drinking water

standard

 for endothall

at

 0.1 parts per million

 (ppm)

 to protect

against the risk of these adverse health effects.

 Drinking water

that meets the U.S. EPA standard

is

 associated with little to none

of this risk and

 is considered safe with respect to endothall.

66)

 Endrin.

 The United States Environmental Protection Agency

 (U.S.

EPA)

 sets drinking water standards and has determined that

 eridrin

is

 a health concern at certain

 levels of exposure.

 This organic

chemical

 is a pesticide no longer registered for use

 in the United

States.

 However, this pesticide

 is persistent

 in treated soils

and accumulates

 in sediments and aquatic and terrestrial biota.

This chemical has been shown to cause damage to the liver,

 kidney,

and heart

 in laboratory animals

 such as rats

 and mice when the

animals are exposed to high levels during their lifetimes.

 U.S.

EPA has set the drinking water standard for endrin at 0.002 parts

per million

 (ppm) to protect against the risk of these adverse

health effects that have been observed

 in laboratory animals.

Drinking water that meets the U.S. EPA standard

 is associated with

little to none of this risk and

 is considered safe with respect to

endrin.

67)

 Glyphosate.

 The United States Environmental Protection Agency

(U.S.

 EPA)

 sets drinking water standards and has determined that

glyphosate

 is a health concern at certain

 levels of exposure.

This organic chemical

is

 a herbicide used to control grasses and

weeds.

 It may get into drinking water by runoff

 into surface

water.

 This chemical has been shown to cause damage to the liver

 and kidneys

 in laboratory animals such as rats and mice when the

animals are exposed to high levels during their lifetimes.

 U.S.

EPA has

 set the drinking water standard for glyphosate at 0.7

parts per million

 (ppm)

 to protect against the risk of these

adverse health effects.

 Drinking water that meets

 the U.S. EPA

standard is associated with

 little to none of this risk and

is

considered safe with respect to glyphosate.

68)

 Hexachlorobenzene.

 The United States Environmental Protection

Agency

 (U.S.

 EPA)

 sets drinking water standards and has determined

that hexachlorobenzene

is

 a health concern at certain levels

of

exposure.

 This organic chemical

 is produced as an impurity in the

manufacture

 of certain solvents and pesticides.

 This chemical has

been shown to cause cancer

 in laboratory animals

 such as rats

and

mice when the animals are exposed to high levels during their

lifetimes.

 Chemicals that cause cancer in laboratory animals also

may increase the risk of cancer in humans who are exposed over

long periods of time.

 U.S. EPA has set the drinking water

standard

 for hexachlorobenzene at 0.001 parts per million

 (ppm)

to

protect against the risk of cancer and other adverse health

effects.

 Drinking water that meets

 the U.S.

 EPA standard is

associated with little to none of this

 risk and

 is considered safe

with respect to hexachlorobenzene.

69)

 Hexachlorocyclopentadiene.

 The United States Environmental

Protection Agency

 (U.S.

 EPA) sets drinking water standards and has

determined that hexachlorocyclopentadiene

is

 a health concern

at

certain levels of exposure.

 This organic chemical

 is a used as an

intermediate in the manufacture of pesticides and flame

retardants.

 It may get into water by discharge from production

facilities.

 This chemical has been shown to damage the kidney and

the stomach of laboratory animals when exposed to high levels

during their

 lifetimes.

 U.S. EPA has set the drinking water

standard for hexachlorocyclopentadiene

 at 0.05 parts per million

178

(ppm) to protect against the risk of these adverse health effects.

Drinking water that meets

 the U.S.

 EPA standard

 is associated with

little to none of this risk and

 is considered safe with respect to

hexachlorocyc lopentadiene.

70)

 Oxamyl.

 The United States Environmental

 Protection Agency

 (U.S.

EPA)

 sets drinking water standards and has determined that oxamyl

is

 a health concern at certain levels of exposure.

 This organic

chemical

 is used as

 a pesticide

 for the control of insects and

other pests.

 It may get into drinking water by runoff into

surface water or leaching

 into ground water.

 This chemical

has

been shown to damage the kidneys of laboratory animals such as

rats when exposed at high levels during their lifetimes.

 U.S. EPA

has set the drinking water standard

 for oxamyl at 0.2 parts per

million

 (ppm)

 to protect against the

 risk of these adverse health

effects.

 Drinking water that meets the U.S. EPA standard is

associated with little to none of this risk and

 is considered safe

with respect to oxamyl.

71)

 Picloram.

 The United States Environmental Protection Agency

 (U.S.

EPA)

 sets drinking water standards and has determined that

picloram

is

 a health concern at certain levels of exposure.

 This

organic chemical

 is used as

 a pesticide

 for broadleaf weed

control.

 It may get

 into drinking water by runoff

 into surface

water or

 leaching into groundwater

as

 a result

 of pesticide

application and improper waste disposal.

 This

 chemical has been

shown

 to cause damage to the kidneys

 and liver

 in laboratory

animals such as

 rats when the animals are exposed to high levels

 during their lifetimes.

 U.S. EPA has set the drinking water

standard for picloraxn at 0.5 parts per million

 (ppm)

 to protect

against the risk of these adverse health effects.

 Drinking water

that meets the U.S.

 EPA standard

 is associated with little to none

of this risk and

 is considered safe with respect to picloram.

72)

 Simazine.

 The United States Environmental Protection Agency

 (U.S.

EPA)

 sets drinking water standards and has determined that

simazine

is

 a health concern at certain levels of exposure.

 This

organic chemical is

 a herbicide used to control annual grasses

and

broadleaf weeds.

 It may leach into groundwater or run off into

surface water after application.

 This

 chemical may cause cancer

in laboratory animals

 such as rats and mice when the animals

are

exposed to high levels during their lifetimes.

 Chemicals that

cause cancer

 in laboratory animals also may increase the risk of

cancer

 in humans who are exposed over long periods of time.

 U.S.

EPA has set the drinking water standard for simazine at 0.004

parts per million

 (ppm) to reduce the risk of cancer or adverse

health effects.

 Drinking water that meets the U.S. EPA standard

is associated with little to none of this risk and

 is considered

safe with respect

 to simazine.

73)

 1,2,4—Trichlorobenzene.

 The United States Environmental

Protection Agency

 (U.S.

 EPA)

 sets drinking water standards and has

determined that l,2,4—trichlorobenzene

is

 a health concern at

certain levels of exposure.

 This organic chemical

 is used as

a

dye carrier and as

 a precursor in herbicide manufacture.

It

generally gets

 into drinking water by discharges from industrial

activities.

 This chemical has been shown to cause damage to

several organs, including the adrenal glands.

 U.S.

 EPA has set

the drinking water standard for l,2,4—trichlorobenzene

 at 0.07

parts per million

 (ppm)

 to protect against the risk of these

adverse health effects.

 Drinking water that meets the U.S.

EPA

standard

 is associated with little to none of this risk and

is

179

considered safe with respect to 1,2,4—trichlorobenzene.

74)

 1,l,2—Trichloroethane.

 The United States Environmental Protection

Agency (U.S.

 EPA)

 sets drinking water standards and has determined

that l,l,2—trichloroethane

is

 a health concern at certain levels

of exposure.

 This organic chemical is an intermediate in the

production of l,1—dichloroethylene.

 It generally gets into water

 by industrial discharge of wastes.

 This chemical

 has been shown

to damage the kidney and

 liver of laboratory animals such as rats

exposed to high levels during their lifetimes.

 U.S. EPA has set

the drinking water standard for 1,l,2—trichloroethane at

 0.005

parts per million (ppm)

 to protect against the risk of these

adverse health effects.

 Drinking water that meets the U.S. EPA

standard

 is associated with little to none of this risk and is

considered safe with respect to l,l,2—trichloroethane.

75)

 2,3,7,8—TCDD (dioxin).

 The United States Environmental Protection

Agency

 (U.S.

 EPA)

 sets drinking water standards and has determined

that dioxin

is

 a health concern at certain

 levels of exposure.

This organic chemical

 is an impurity

 in the production of some

pesticides.

 It may get into drinking water by industrial

discharge of wastes.

 This chemical has been shown to cause cancer

in laboratory animals

 such as rats and mice when the animals are

exposed to high levels during their lifetimes.

 Chemicals

 that

cause cancer in laboratory animals also may

 increase the risk of

cancer

 in humans who are exposed over long periods

of

 time.

 U.S.

EPA has set the drinking water standard for dioxin at 0.00000003

parts per million

 (ppm)

 to protect against the risk of cancer or

other adverse health effects.

 Drinking water that meets the U.S.

EPA standard is associated with little to none of this risk and

is

considered safe with respect to dioxin.

BOARD NOTE:

 Derived from 40 CFR 141.32(e)

 (l99~4).

(Source:

 Amended at

19

 Ill.

 Reg.

________,

 effective

______________________

Section 6l1.Table

S

 Lead and Copper Monitoring Start Dates

System

Size

First

Six-month

Monitoring

Period

 Begins

(Persons served)

more than 50,000

 Upon effective date’

3,301 to 50,000

 Upon effective date2

3,300 or fewer

 July

1,

1993

~

 sets

 forth

 a date of January

1,

 1992.

2

~

 sets

 forth

 a date of July

1,

 1992.

BOARD NOTE:

 Derived from 40 CFR l41.86(d)(1)

 (199~.4).

(Source:

 Amended at

19

 Ill.

 Reg.

________,

 effective

______________________

Section 611..Table

Z

 Federal Effective Dates

The following are the effective dates of the federal MCL5:

Fluoride (40 CFR

 14l.60(b)(l))

 October

2,

1987

(corresponding with Section 611.301(b))

Phase

 I VOCs

 (40 CFR 141.60(a)(1))

 July 9,

1989

180

(corresponding with Section

 611.311(a))

(benzene, carbon tetrachloride,

 p—dichlorobenzene.,

 l,2—Dichloro—

etharie,

 1, l—dichloroethylene,

 1,1, l-trichloroethane,

 trichlora—

ethylene,

 and vinyl chloride)

Lead and Copper

 (40 CFR, Subpart

I)

 July

7,

1991

(corresponding with Subpart

 G of this Part)

(lead and copper monitoring,

 reporting,

 and recordskeeping

requirements of 40 CFR 141.86 through 141.91)

Phase

II

 lOCs

 (40 CFR 141.60(b) (2))

 July

30,

1992

(corresponding with Section 611.301(b))

(asbestos,

 cadmium,

 chromium,

 mercury, nitrate,

 nitrite,

and

selenium)

Phase II VOCs

 (40 CFR 141.60(a) (2))

 July

30,

1992

(corresponding with Section 611.311(a))

(o—dichlorobenzene,

 cis—l,2-dichloroethylene, trans—1~,2—dichloro—

ethylene,

 1,2—dichioropropane,

 ethylbenzene, monochlorobenzene,

styrene,

 tetrachloroethylerie,

 toluene, and xylenes

 (total))

Phase

Ii

 SOCs

 (40 CFR 141.60(a) (2))

 July

30,

1992

(corresponding with Section 611.311(c))

(alachlor,

 atrazine,

 carbofuran,

 chlordane,

 dibromochloropropane,

ethylene dibromide,

 heptachlor, heptachlor epoxide,

 lindane,

methoxychlor, polychiorinated biphenyls,

 toxaphene,

 2,4—D,

and

2,4,5—TP (Silvex))

Lead and Copper

 (40 CFR, Subpart

I)

 December

7,

1992

(corresponding with Subpart

 G of this Part)

(lead and copper corrosion control, water

 treatment, public

education, and

 lead service line replacement requirements of 40

CFR 141.81 through 141.85)

Phase

 IIB ICC

 (40 CFR 141.60(b) (2))

 January

1,

1993

(corresponding with Section 611.301(b))

(barium)

Phase

 IIB SOCs

 (40 CFR 141.6O(a)(2))

 January

1,

1993

(corresponding with Section 611.311(c))

(aldicarb,

 aldicarb sulfone,

 aldicarb sulfoxide,

 and pentachloro—

phenol; U~S~EPAstayed the effective date as to the MCLs for

aldicarb,

 alciicarb sulfone, and aldicarb

 sulfoxide,

 but the

monitoring requirements became effective January

1,

 1993)

Phase V lOCs

 (40 CFR 141.60(b) (3))

 January

17,

1994

(corresponding with Section 611.301(b))

(antimony, beryllium,

 cyanide,

 nickel,

 and thallium)

Phase V VOCs

 (40 CFR 14l.60(a)(3))

 January

17,

1994

(corresponding with Section 611.311(a))

(dichloromethane,

 1,2,4—trichlorobenzene,

and

 1, 1,2—trichloro—

ethane)

Phase V SOC5

 (40 CFR 141.60(a) (3))

 January

17,

1994

(corresponding with Section 611.311(c))

(benzo(apyrene,

 dalapon,

 di(2—ethylhexyl)adipate, di(2—ethyl-

hexyl)phthalate dinoseb, diquat,

 endothall,

 endrin, glyphosate,

hexachlorobenzene, hexachiorocyclopentadiene,

 oxamyl,

 picloram,

simazine,

 and 2,3,7,8—TCDD)

(Source:

 Amended at

 19 Ill.

 Reg.

________,

 effective

_____________________)

181

I, Dorothy

 M. Gunn,

 Clerk of the Illinois Pollution Control

Board,

 hereby certify t~atthe above proposed opinion and order

was adopted on the

/~

day of

~

 1995,

 by a vote

of

7~

Dorothy M./~unn,Clerk

Illinois P~ál1utionControl Board