1. Streamlining Amendments to the NPDES Rules
      1. _
        1. _
          1. Section 730.167?Operating Requirements.
          2. SOURCE:€ Adopted in R89-2 at 14 Ill. Reg. 3059, effective February 20, 1990; amended in R89-11 at 14 Ill. Reg. 11948, effective July 9, 1990; amended in R90-14 at 15 Ill. Reg. 11425, effective July 24, 1991; amended in R92-13 at 17 Ill. Reg. 6190, effect

ILLINOIS POLLUTION CONTROL BOARD
December 7, 2000
IN THE MATTER OF: )
)
UIC UPDATE, USEPA AMENDMENTS ) R00-11
(July 1, 1999, through December 31, 1999) ) (Identical-in-Substance
) Rulemaking - Land)
________________________________________
IN THE MATTER OF: )
)
UIC UPDATE, USEPA AMENDMENTS ) R01-1
(January 1, 2000, through June 30, 2000) ) (Identical-in-Substance
) Rulemaking - Land)
Adopted Rule. Final Order.
OPINION AND ORDER OF THE BOARD (by E.Z. Kezelis):
Under Sections 7.2 and 13(c) of the Environmental Protection Act (Act) (415 ILCS 5/7.2
and 13(c) (1998)), the Board adopts amendments to the Illinois regulations that are “identical in
substance” to underground injection control (UIC) regulations that the United States
Environmental Protection Agency (USEPA) adopted to implement Section 1421 of the federal
Safe Drinking Water Act (SDWA) (42 U.S.C. § 300h (1998)). The nominal timeframe of docket
R00-11 includes federal UIC amendments that USEPA adopted in the period July 1, 1999,
through December 31, 1999. The nominal timeframe of docket R01-1 includes federal UIC
amendments that USEPA adopted in the period January 1, 2000, through June 30, 2000.
Sections 7.2 and 13(c) provide for quick adoption of regulations that are identical in
substance to federal regulations that USEPA adopts to implement Section 1421 of the federal
SDWA (42 U.S.C. § 300h (1998)). Section 13(c) also provides that Title VII of the Act and
Section 5 of the Administrative Procedure Act (5 ILCS 100/5-35 and 5-40 (1998)) do not apply
to the Board’s adoption of identical-in-substance regulations. The federal UIC regulations are
found at 40 C.F.R. 144 through 148.
The Board will file the adopted amendments with the Office of the Secretary of State
immediately after the date of this opinion. The adopted amendments will become effective when
filed with the Office of the Secretary of State.
CONSOLIDATION OF DOCKETS AND EXPEDITED CONSIDERATION
In its proposal for public comment, adopted by the Board on September 7, 2000, the
Board determined that it was necessary to consolidate two separate dockets in this rulemaking
and expedite our consideration of certain later amendments. The actions involved in UIC update

2
docket R01-1 were consolidated with the rulemaking proposal in docket R00-11 because they
require no Board action, are closely related to the actions involved in UIC update docket R00-11,
or are the UIC aspects of the hazardous waste-related actions incorporated into the recent
Resource Conservation and Recovery Act (RCRA) Subtitle C update, RCRA Subtitle C Update,
USEPA Amendments (July 1, 1999, through December 31, 1999) (May 18, 2000), R00-13.
For the foregoing reasons, and on its own motion, the Board consolidated the UIC update
dockets R00-11 and R01-1 into a single action. This consolidation provided the most
expeditious and efficient implementation of both sets of amendments.
FEDERAL ACTIONS CONSIDERED IN THIS RULEMAKING
The following briefly summarizes the federal actions considered in this rulemaking.
Docket R00-11: July 1, 1999, through December 31, 1999
USEPA amended the federal UIC regulations on two occasions during the period July 1,
1999, through December 31, 1999. Each is summarized below:
64 Fed. Reg. 68546 (December 7, 1999)
USEPA adopted amendments relating to Class V injection wells. It consolidated the rules
applicable to Class V wells into a new subpart. The rules ban new large cesspools and
motor vehicle waste disposal wells immediately, and they will require existing cesspools
and motor vehicle waste disposal wells to close by dates to be determined by the location
of the well with respect to protected groundwater resources. The amendments include
permit provisions applicable to the owners and operators of these Class V injection wells.
64 Fed. Reg. 70316 (December 16, 1999)
USEPA corrected its amendments of December 7, 1999.
Docket R01-1: January 1, 2000, through June 30, 2000
USEPA amended the federal UIC regulations on four occasions during the period
January 1, 2000, through June 30, 2000. Each is summarized below:
65 Fed. Reg. 5024 (February 2, 2000)
USEPA corrected its amendments of December 7, 1999.
65 Fed. Reg. 14472 (March 17, 2000)
USEPA vacated the hazardous waste listings and land disposal restrictions (LDRs) for
organobromine production wastes (formerly USEPA hazardous waste numbers K140 and
U408) that it initially adopted on May 4, 1998 (63 Fed. Reg. 24596). One segment of
these amendments vacating the LDRs relates to the underground injection of these
wastes.

3
65 Fed. Reg. 30886 (May 15, 2000)
USEPA adopted a series of amendments to various of its National Pollutant Discharge
Elimination System (NPDES) permit rules intended to streamline the regulations. One
aspect of the amendments affects the federal UIC permit rules.
65 Fed. Reg. 36365 (June 8, 2000)
USEPA corrected its action of March 17, 2000.
Later UIC Amendments of Interest
The Board engages in ongoing monitoring of federal actions. When the Board observes
an action outside the nominal timeframe of a docket that would require expedited consideration
in the pending docket, the Board expedites consideration of those actions. Federal actions that
could warrant expedited consideration include those that directly affect the amendments involved
in this docket, those for which compelling reasons would warrant consideration as soon as
possible, and those for which the Board has received a request for expedited consideration. As of
the date of this opinion and accompanying order, we have identified no USEPA actions since
June 30, 2000, that further amend the UIC rules within the scope any of the subject matters as
those already involved in this docket.
Summary Listing of the Federal Actions Forming the Basis of the Board’s Actions
in this Consolidated Docket
Based on the foregoing, the federal actions that form the basis for Board action in this
update docket are as follows, in chronological order:
64 Fed. Reg. 68546
(December 7, 1999)
Class V injection well amendments.
64 Fed. Reg. 70316
(December 16, 1999)
Corrections to the amendments of December 7, 1999.
65 Fed. Reg. 5024
(February 2, 2000)
Corrections to the amendments of December 7, 1999.
65 Fed. Reg. 14472
(March 17, 2000)
Withdrawal of the organobromine production waste listings and
LDRs.
65 Fed. Reg. 30886
(May 15, 2000)
Streamlining amendments to the NPDES permit rules, including
an amendment to the UIC permit rules.
65 Fed. Reg. 36365
(June 8, 2000)
Correction to the action of March 17, 2000.
PUBLIC COMMENTS
The Board adopted a proposal for public comment in this matter on September 7, 2000.
Notices of Proposed Amendments appeared in the October 6, 2000 issue of the
Illinois Register
,
at 24 Ill. Reg. 14528 (Part 738), 14535 (Part 702), 14550 (Part 704), and 14578 (Part 730). The
Board received public comments on this proposal for a period of 45 days following its

4
publication in the
Illinois Register
. The public comment period ended on November 20, 2000.
The Board now considers final adoption of the amendments, making any necessary changes made
evident through the public comments. The Board will file these adopted amendments with the
Secretary of State, so that they will become effective without delay. The complete text of the
proposed amendments appears at the end of this opinion and order.
During the public comment period, the Board received the following comment:
PC 1 Illinois Environmental Protection Agency (Agency): “Response of the Illinois
Environmental Protection Agency Pursuant to Public Comment Period for
Proposed Identical-in-Substance Rules,” dated November 21, 2000, from Susan J.
Schroeder, Associate Counsel, Division of Legal Counsel (received November 22,
2000).
In addition to the public comments received, the Board received from the Joint
Committee on Administrative Rules (JCAR) on October 12, 2000, a series of four documents
(one for each Part involved in this proceeding) entitled “Line Numbered Version.” JCAR also
submitted four additional documents, one for each Part, entitled “Suggested Revisions.”
In PC 1, the Agency stated that the funding provided by USEPA to aid implementation of
the State UIC program is inadequate for implementation of that program. The Agency observed
that the present amendments will significantly increase the burden of implementing the program,
so that the costs further exceed the resources available to the Agency to do so. The Agency
concluded that it has informed USEPA that it is not in the position to modify the Illinois primacy
package to include the present amendments without additional funding. The Agency did not
comment on substantive aspects of the present amendments.
While the Board appreciates the Agency’s funding concerns, we must adopt amendments
involving the federal Class V injection well restrictions. Under Sections 7.2 and 13(c) of the
Environmental Protection Act (Act) (415 ILCS 5/7.2 and 13(c) (1998)), the Board must adopt
regulations that are identical-in-substance to the federal UIC rules. Nothing in that mandate
allows the Board to reconsider the merits of the federal rules or to weigh the burdens of
implementing or complying with them. Thus, while not insensitive to the Agency’s position that
the State lacks the resources to implement these amendments, the Board must proceed to adopt
them notwithstanding the Agency comments.
DISCUSSION
The following discussion begins with a description of the types of deviations the Board
makes from the literal text of federal regulations in adopting identical-in-substance rules. It is
followed by a discussion of the amendments and actions undertaken in direct response to the
federal actions involved in this proceeding. This first series of discussions is organized by
federal subject matter, generally appearing in chronological order of the relevant
Federal
Register
notices involved. Finally, this discussion closes with a description of the amendments
and actions that are not directly derived from the federal actions.

5
General Revisions and Deviations from the Federal Text
In incorporating the federal rules into the Illinois system, some deviation from the federal
text is unavoidable. This deviation arises primarily through differences between the federal and
state regulatory structure and systems. Some deviation also arises through errors in and problems
with the federal text itself. The Board conforms the federal text to the Illinois rules and
regulatory scheme and corrects errors that we see in the text as we engage in these routine update
rulemakings.
In addition to the amendments derived from federal amendments, the Board often finds it
necessary to alter the text of various passages of the existing rules as provisions are opened for
update in response to USEPA actions. This involves correcting deficiencies, clarifying
provisions, and making other changes that are necessary to establish a clear set of rules that
closely parallel the corresponding federal requirements within the codification scheme of the
Illinois Administrative Code.
The Board updates the citations to the
Code of Federal Regulations
to the most recent
version available. As of the date of this opinion, the most recent version of the
Code of Federal
Regulations
available to the Board is the July 1, 1999 version. Thus, we have updated all
citations to the 1999 version, adding references to later amendments using their appropriate
Federal Register
citation, where necessary.
The Board substituted “or” for “/” in most instances where this appeared in the federal
base text, using “and” where more appropriate. The Board further used this opportunity to make
a number of corrections to punctuation, grammar, spelling, and cross-reference format
throughout the opened text. We changed “who” to “that” and “he” or “she” to “it,” where the
person to which the regulation referred was not necessarily a natural person, or to “he or she,”
where a natural person was evident; changed “which” to “that” for restrictive relative clauses;
substituted “must” for “shall”; capitalized the section headings and corrected their format where
necessary; and corrected punctuation within sentences.
In addition, 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,” “must” is used
when an action is required by the rule, without regard to whether the action is required of the
subject of the sentence or not. “Shall” is no longer, since it is not used in everyday language.
Thus, where a federal rule uses “shall,” the Board substitutes “must.” This is a break from our
former practice where “shall” was used when the subject of a sentence has a duty to do
something. “Will” is used when the Board obliges itself to do something. “May” is used when
choice of a provision is optional. “Or” is used rather than “and/or,” and denotes “one or both.”
“Either . . . or” denotes “one but not both.” “And” denotes “both.”
The Joint Committee on Administrative Rules JCAR has requested that the Board refer to
the United States Environmental Protection Agency in the same manner throughout all of our
bodies of regulations (
i.e.
, air, water, drinking water, RCRA Subtitle D (municipal solid waste

6
landfill), RCRA Subtitle C (hazardous waste), underground injection control (UIC), etc.). The
Board has decided to refer to the United States Environmental Protection Agency as “USEPA.”
We will continue this conversion in future rulemakings as additional sections become open to
amendment. We will further convert “EPA” used in federal text to “USEPA,” where USEPA is
clearly intended.
The Board has assembled tables to aid in the location of these alterations and to briefly
outline their intended purpose. The tables set forth the miscellaneous deviations from the federal
text and corrections to the pre-amended base text of the rules in detail. The tables are set forth
and explained beginning at page 15. There is no further discussion of most of the deviations and
revisions elsewhere in this opinion.
Discussion of Particular Federal Actions
Regulations for Certain Class V Injection Wells—Parts 704 and 730
USEPA adopted amendments to the UIC regulations on December 7, 1999 (64 Fed. Reg.
68546) that impose requirements on certain Class V injection wells. The principal Class V wells
affected are new and existing large capacity cesspools and motor vehicle waste injection wells.
USEPA corrected these Class V well rules on December 16, 1999 (64 Fed. Reg. 70316), and
February 2, 2000 (65 Fed. Reg. 5024). The new requirements derive from the settlement in
Sierra Club v. Browner, No. 93-2644 (D.D.C.). Under the settlement, USPEA undertook a study
of the impact of Class V wells on groundwater quality. The current rules are the first installment
of regulations prompted by that study.
The new Class V injection well rules designate as “existing wells” those wells currently
in operation or under construction by April 5, 2000. Those wells that are not existing wells are
designated as “new injection wells.” The rules prohibit construction and operation of new or
converted cesspools and motor vehicle waste disposal wells. The owner or operator of an
existing cesspool must notify authorities and close the well by April 5, 2005. The fate of an
existing motor vehicle waste disposal well depends on its location and the status of the State
groundwater protection program where the well is located. In brief, for a motor vehicle waste
disposal well that is located in a “ground water protection area” or “other sensitive ground water
area,” as designated by the State, the owner or operator must obtain a permit or close the well by
dates specified in the rules.
The Board has incorporated the federal amendments into the appropriate segments of the
UIC regulations. We have done so with the deviations from the text of the federal amendments
that are necessary to conform the requirements to the Illinois regulations. For example, USEPA
used its “user-friendly” format for the federal rule. The Board has converted that format to a
more traditional direct format, while still retaining the substance of the federal rules. As a result,
the volume of deviations from the literal text of the federal amendments is greater than normal
for an identical-in-substance proceeding. Persons interested in the substance of the underlying
federal action should refer to the notices that appeared in the December 7 and 16, 1999, and

7
February 2, 2000 issues of the
Federal Register
. The tables that begin at page 14 of this opinion
outline the deviations that the Board has made in adapting the text of the federal amendments.
Several issues raised during the course of adapting the federal rules for incorporation into
the Illinois rules warrant specific discussion. Most of these relate to the groundwater protection
aspects of the rule. They are as follows: (1) the federal names given required elements of the
State program do not directly correlate with the names used in Illinois law; (2) various segments
of the rules refer to federal requirements imposed on the State and not on regulated entities; (3)
other segments of the rules impose requirements on regulated entities depending on the status of
the State program; and (4) certain requirements clearly do not apply to entities in Illinois by their
own terms. Other issues relate instead to the structure and content of the rules and have nothing
to do with the groundwater protection aspects.
Under Section 1453 of SDWA (42 U.S.C. § 300j-13 (1998)), federal law provides for
source water assessment programs administered by the states. The states are to delineate the
boundaries of areas where groundwater is used as a source of drinking water. Illinois was
required to submit a program for USEPA review and approval and was to begin implementation
of the program immediately after USEPA approval. Illinois’ program can include elements of
existing state programs intended to protect groundwater resources.
In Illinois, there are two statutes intended to protect groundwater resources used as
sources of drinking water. First, Sections 14.1 through 14.6 of the Act (415 ILCS 5/14.1-14.6
(1998)) establish minimum setback zones around community supply wells and other potable
water supply wells, and Sections 17.1 through 17.4 of the Act (415 ILCS 5/17.1-17.4 (1998))
provide for the evaluation of the adequacy of minimum setback zones around community water
well supply wells and the establishment of a more extensive regulated recharge area around the
wells as necessary to protect groundwater. The regulations of 35 Ill. Adm. Code 615 through 617
implement those provisions of the Act. Second, the Illinois Groundwater Protection Act (IGPA)
(415 ILCS 55/8 (1998)) provides for the classification of groundwater resources in this State,
based on the use and quality of the particular water, and for the establishment of groundwater
quality standards for the water in the various classes. The regulations of 35 Ill. Adm. Code 620
classify Illinois groundwater resources and set forth the required groundwater quality standards.
It is a violation of the Environmental Protection Act and Board regulations to cause a violation of
the groundwater standards. See 415 ILCS 5/12(a) (1998) and 35 Ill. Adm. Code 620.115 (1998).
None of the groundwater protection provisions are directly involved in the December 7,
1999 federal Class V injection well regulations. However, the Class V well rules refer
extensively to groundwater protection and the status of the State groundwater protection
program. The federal rules define and refer to “ground water protection area” and “other
sensitive ground water area.” At Section 144.86(c), USEPA defines a “ground water protection
area” as a geographic area near or around the well used by a community water system or non-
transient non-community water system (both defined in the drinking water regulations at 35 Ill.
Adm. Code 611.101). 40 C.F.R. 144.86(c), as added at 65 Fed. Reg. 68546, 68569 (December 7,
1999). At 40 C.F.R. 144.86(g), USEPA defines an “other sensitive ground water area” as an area
other than a “ground water protection area” that is “critical to protecting underground sources of

8
drinking water from contamination.” 40 C.F.R. 144.86(g), as added at 65 Fed. Reg. 68546,
68569 (December 7, 1999).
In order to accommodate the differences in phrasing used in the federal rules and the
existing Illinois provisions relating to the protection of groundwater resources, the Board has
retained the federal phrasing throughout the Class V well regulations. Thus, the Board has
retained the names “groundwater protection area” and “other sensitive groundwater area,” but has
made “groundwater” a single word and has added the word “groundwater” to the federal “other
sensitive area” in Section 704.286. In addition, the Board has added to the definitions in Section
704.286 a statement to the effect that a “setback zone,” as defined in Section 3.61 of the Act (415
ILCS 5/3.61 (1998)) and regulated pursuant to Sections 14.1 through 14.6 of the Act (415 ILCS
5/14.1-14.6 (1998)), is considered a “groundwater protection area,” and that a “regulated
recharge area,” as defined in Section 3.67 of the Act (415 ILCS 5/3.67 (1998)) and regulated
pursuant to Sections 17.1 through 17.4 of the Act (415 ILCS 5/17.1-17.4 (1998)), is considered
an “other sensitive groundwater area.”
The Board has not added references to the IGPA and 35 Ill. Adm. Code 620 to either
definition. Although the IGPA and the Board regulations adopted to implement it, protect
groundwater quality, they do not prohibit the location of any type of facility in any class of
groundwater area, including Class III special resource groundwater area. It would be
inappropriate for the Board to effectively incorporate such a prohibition in the context of an
identical-in-substance proceeding like this one, since such a prohibition would not be derived
from some similar federal prohibition. Rather, the Board has added references in Board notes at
Section 704.285(b) and at the definition of “State drinking water source assessment and
protection program” in Section 704.286 that acknowledge the significance of the IGPA and
associated rules to the protection of groundwater in Illinois. If the Agency concludes that Class
III or any other class of groundwater should be included as either a “groundwater protection area”
or “other sensitive groundwater area” as used in the Class V injection well rules, it should submit
a rulemaking proposal to the Board pursuant to Sections 27 and 28 of the Act.
The second and third sets of issues that the Board confronted in this proceeding also
relate to the federal requirements that the State designate groundwater protection areas and other
sensitive groundwater areas. Certain segments of the federal Class V injection well rules outline
the federal requirements that the State follow in designating these areas. Two groups of rules
accomplish this.
One group of the “state-requirement” rules outlines the federal requirements imposed on
the states for the purpose of informing the regulated community. One such example is found at
40 C.F.R. 144.87(b). The language of subsection (b) outlines what the states must do, then sets
forth the applicability of certain requirements should the states fail to fulfill those obligations. It
outlines the effects on the regulated community of a state’s failure to fulfill its obligations. It is
not possible at this time for the Board to determine that Illinois has fulfilled these requirements
for state action. Accordingly, the impact of a failure to satisfy these requirements might have
significant impact on what requirements apply to a facility in this State. In this instance, the
Board kept the federal language and added an explanatory Board note.

9
The other group of “state-requirement” rules focused on state action, rather than regulated
entities. Examples include 40 C.F.R. 144.87(c) and (h). The language of subsection (c) includes
a reiteration of the deadline for state action and outlines the availability of a federal extension of
that deadline. Since the deadline appears in the preceding subsection, the Board omitted a
reiteration of the deadline and included only the language relating to the effect of an extension of
the deadline. The language retained includes certain deadlines for action by the regulated
community that are contingent on the regulatory status of the Illinois Program. In subsection (h),
USEPA outlined action that it encourages states to undertake, none of which relates to
implementation of the substantive requirements of the Class V well rule. Thus, the Board
replaced major segments of the federal language of subsection (h) with a Board note explaining
that we had omitted federal language encouraging the state to undertake certain actions but not
imposing any requirements on the regulated community.
The Board has omitted those provisions that clearly do not apply in Illinois and has
inserted explanatory Board notes in appropriate segments of the rules. This occurred in Section
704.283(b). Corresponding 40 C.F.R. 144.83(b), relating to notification, imposes requirements
based on the primacy status of the applicable state. Since that table itself lists Illinois as a
“Primacy State,” it was unnecessary for the Board to include the requirements applicable to a
facility in a “Direct Implementation State.”
One deviation from the literal text of the federal rule was intended to remove a
redundancy and an area of potential conflict. New provision 40 C.F.R. 144.80 defines a Class V
injection well by exclusion,
i.e.
, it does so by outlining the various classes of injection wells and
defining a Class V well as one that is not within another class. This language is nearly identical
to that of 40 C.F.R. 144.6, from which 35 Ill. Adm. Code 704.106 is derived. The Board has
removed the duplicate language from 40 C.F.R. 144.80 in new Section 704.280 and replaced it
with language indicating that a Class V injection well is defined in Section 704.106.
Another deviation from the structure of the federal rule involved changing the
requirements in the tables at new 40 C.F.R. 144.88 to the standard subsection format in
corresponding 35 Ill. Adm. Code 704.288. These provisions are key to the Class V well rule, and
the Board believes that they are more clearly understood in the standard format. The Board
interprets the requirements as follows: if the condition of column one is true of the facility and
the condition of one cell in column two is also true, then the adjacent cell in column three
indicates the requirement that applies. We further interpret USEPA’s intent to be that all of the
conditions set forth in the first column are considered alternatives to be read in conjunction with
the corresponding condition in the first column. Thus, the conditions in cells (1)(i), (1)(ii),
(1)(iii), etc. are each alternatives to one another.
A final set of deviations from the literal text of the federal rule is intended to clarify
ambiguity in the rule. USEPA repeatedly refers to the additional requirement of new Subpart I.
One section, 40 C.F.R. 144.88, defines the additional requirements. Thus, the Board has
repeatedly changed the reference to read “the additional requirements of Section 704.288” at
Sections 704.284(b)(2); 704.285(a), (b), and (c); 704.286; and 704.287(h). In 40 C.F.R.

10
144.88(a), USEPA refers to “new requirements,” and in 40 C.F.R. 144.88(c), USEPA refers to
both “new requirements” and “rule requirements.” In context, the Board reads these as meaning
the same as “additional requirements,” so we have changed to this wording in corresponding
Section 704.288(a) and (c).
Finally, the Board has added Board notes explaining the right of an owner or operator to
appeal certain Agency determinations to the Board pursuant to Section 40 of the Act (415 ILCS
5/40 (1998)). In 40 C.F.R. 144.87(b)(2), (e), and (h) and 144.88(b)(1)(i), (b)(1)(ii), and (b)(1)(v),
the State may extend the deadline for an owner or operator to comply if it determines that the
most efficient compliance option is connection to a sanitary sewer or installation of new
treatment technology. While the Agency is given discretion to determine whether or not the most
efficient compliance option is indeed connection to a sanitary sewer or the installation of new
technology, the Board cannot vest in the Agency the additional discretion to determine whether
or not to extend the deadline for compliance. The Board then added a Board note explaining the
right to appeal an Agency determination. Thus, corresponding Sections 704.287(b)(2), (e), and
(h) and 704.288(b)(1)(A), (b)(1)(B), and (b)(1)(E), provide that the Agency must extend the
deadline if it makes the compliance determination, and a Board note explains the right to appeal.
The Board requested public comment on incorporation of the December 17, 1999 federal
Class V injection well rule and the subsequent corrections of December 16, 1999, and
February 5, 2000. We received no comments on the substantive aspects of the proposal. For this
reason, the Board has adopted the amendments as proposed without substantive revision.
Organobromine Production Waste Rule—Section 738.118
On March 17, 2000 (65 Fed. Reg. 14472), USEPA withdrew the hazardous waste listings
for organobromine production wastes (USEPA hazardous waste numbers K140 and U408) and
the associated LDRs for these wastes. This was in response to a court order in Great Lakes
Chemical Corp. v. EPA, No. 98-1312, 1999 WL 322757 (D.C. Cir. April 9, 1999), which vacated
the listings. On June 8, 2000 (65 Fed. Reg. 36365), USEPA corrected its March 17, 2000 action.
The Board incorporated all the RCRA Subtitle C hazardous waste aspects of the March 17, 2000
federal withdrawal in the previous hazardous waste update, RCRA Subtitle C Update, USEPA
Regulations (July 1, 1999, through December 31, 1999) (May 18, 2000), R00-13. A segment of
the withdrawn LDRs restricted underground injection of these wastes, and it is that segment that
is involved in this present docket.
USEPA adopted the recently-withdrawn organobromine waste rule on May 4, 1998 (63
Fed. Reg. 24596). The Board incorporated the hazardous waste listings and associated LDRs in
RCRA Subtitle C Update, USEPA Regulations (July 1, 1997, through December 31, 1997)
(December 17, 1998), R98-21/R99-2/R99-7 (Consolidated). The effect of the March 17, 2000
federal withdrawal is that organobromine production wastes are no longer listed hazardous
wastes, so that there is no longer a restriction on their disposal by underground injection.
The Board has incorporated the March 17, 2000 and June 8, 2000 federal actions into the
present update docket. The Board has incorporated the federal revisions into Section 738.118

 
11
without significant deviation from the federal text. The single minor deviation from the federal
text is listed in the table that begins at page 14 of this opinion. The Board directs attention to the
federal notice of final actions in the March 17, 2000 and June 8, 2000 issues of the
Federal
Register
for further details of the federal decision to withdraw the hazardous waste listings for
organobromine production wastes.
The Board requested public comment on incorporation of the March 17, 2000 withdrawal
of and June 8, 2000 correction of the restrictions on injection of the former USEPA hazardous
waste numbers K140 and U408. We received no comments on the substantive aspects of the
proposal. For this reason, the Board has adopted the amendments as proposed without
substantive revision.
Streamlining Amendments to the NPDES Rules
USEPA adopted a series of amendments on May 15, 2000 (65 Fed. Reg. 30886), intended
to streamline its NPDES rules. Included among the various amendments was an amendment to
40 C.F.R. 144.52, which is a UIC program rule. The amendment involved the removal of a
cross-reference to the NPDES rules. Corresponding 35 Ill. Adm. Code 702.160 in the Illinois
rules does not include a similar cross-reference. Accordingly, the Board sees no need to amend
the Illinois rules in response to this federal action. Thus, no similar amendment is included in
this docket.
The Board requested public comment on our decision not to act in response to the
May 15, 2000 federal streamlining amendments to the NPDES rules. We received no comments
on the substantive aspects of the proposal.
Conforming the Definitions of “On-Site”—Section 702.110
JCAR suggested certain revisions to the text of the amendments. For example, JCAR
suggested that the Board should amend the definition of “on-site” in Section 702.110 to
correspond with amendments made to the definition of “on-site” in 35 Ill. Adm. Code 809.103,
which the Board recently amended in Conforming and Technical Amendments to 35 Ill. Adm.
Code 809, Nonhazardous Special Waste Hauling and the Uniform Program (September 7, 2000),
R00-18. In response to JCAR’s suggestion, the Board observes that the definition of “on-site” in
Section 702.110 is not related to the definition of that term in 35 Ill. Adm. Code 809.103, and it
would not be appropriate for the Board to use the identical-in-substance procedure of Sections
7.2 and 13(c) to conform the Section 702.110 definition with that in 35 Ill. Adm. Code 809.103.
There are several reasons why the Board cannot amend the Section 702.110 definition of
“on-site” to conform with the definition of this term in 35 Ill. Adm. Code 809.103. First,
amending the definition of “on-site” at Section 702.110, as suggested by JCAR, would make that
definition inconsistent with the corresponding definition in 40 C.F.R. 270.2, which would render
the Illinois hazardous waste regulations less stringent than the corresponding federal regulations.
Amending the definition in such a way would exceed the Board’s rulemaking authority and
violate the identical-in-substance mandates of Sections 7.2, 13(c), and 22.4 of the Act (415 ILCS

12
5/7.2, 13(c), and 22.4 (1998)). Further, the definition of “on-site” for the purposes of the RCRA
Subtitle C permit regulations has little to do with the definition of that term for the purposes of
the special waste hauling regulations. Thus, any inconsistency in the definitions of this term at
Section 702.110 and the term in 35 Ill. Adm. Code 809.103 should cause no confusion.
For the foregoing reasons, the Board declines to follow the JCAR suggestion.
Substitution of Effective Dates—Section 704.148
As a result of a suggested revision submitted by JCAR, the Board has changed the text of
the proposed amendments for final adoption. We have deleted a provision in its entirety based
on examination of the text. In Section 704.148(d)(2), the text formerly provided as follows:
The information need not be submitted if a complete application is submitted
within one year of the effective date of the U.S. EPA UIC program. The owner or
operator of a Class IV well shall submit inventory information no later than 60
days after the effective date of the U.S. EPA UIC program.
JCAR suggested that the Board substitute the actual date for the effective date language.
In response, the Board reexamined the text of 40 C.F.R. 144.26(d)(2), the federal source
for this provision. We found that subsection (d)(1) is the provision that applies in authorized
states. It requires the submission of the required inventory information a year after the date when
USEPA approved the State UIC program. Thus, corresponding 35 Ill. Adm. Code 704.148(d)(1)
requires submission of the information by March 3, 1985. The federal provision at subsection
(d)(2) requires submission of the information for only those facilities subject to “EPA
administered programs” (
i.e.
, in areas not subject to an authorized state program in which
USEPA is implementing the federal rules).
Illinois is an authorized state, so USEPA does not administer the federal rules in
Illinois. Thus, only subsection (d)(1) applies here, and subsection (d)(2) is not necessary.
When confronted with the need to remove a federal provision that does not apply in
Illinois, the Board normally substitutes the federal provision with language that explains
the removal of the provision. This substitution is usually done in order to maintain
structural parity with 40 C.F.R. 144.26(d). This was not necessary in the present instance,
so the Board has simply incorporated the text of subsection (d)(1) into subsection (d) and
entirely removed subsection (d)(2) from the Illinois regulations.
Agency or Board Action
Section 7.2(a)(5) of the Act requires the Board to specify for which portions of the
program USEPA will retain decision making authority. Based on the general division of
functions within the Act and other Illinois statutes, the Board is also to specify which State
agency is to make decisions.

13
In situations in which the Board has determined that USEPA will retain decision-making
authority, the Board has replaced “Regional Administrator” with USEPA, so as to avoid
specifying which office within USEPA is to make a decision.
In some identical-in-substance rules, certain decisions pertaining to a permit application
are not appropriate for the Agency to consider. In determining the general division of authority
between the Agency and the Board, the following factors should be considered:
1. Whether the person making the decision is 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. Whether there is a clear standard for action such that the Board can give
meaningful review to an Agency decision.
3. Whether the action would result in exemption from the permit requirement itself.
If so, Board action is generally required.
4. Whether the decision amounts 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 decisions: 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). There often are differences in the nomenclature for these decisions
between the USEPA and Board regulations.
Discussion of Miscellaneous Housekeeping Amendments
The tables below list numerous corrections and amendments that are not based on current
federal amendments. Table 1 (beginning immediately below) includes deviations made in this
final order from the verbatim text of the federal amendments. Table 2 (beginning below at page
34) contains corrections and clarifications that the Board made in the base text involved in this
proposal. The amendments listed in Table 2 are not directly derived from the current federal
amendments. Table 3 (beginning on page 42 below) is a listing of revisions made to the text of
the amendments from that proposed and set forth in the Board’s opinion and order of September
7, 2000. Table 3 indicates the changes made, as well as the source that suggested each of the
changes. Table 4 (beginning on page 51 below) lists a small number of suggested revisions that
the Board cannot incorporate into the text of the amendments. Table 4 indicates the suggested
revision, the source of the suggestion, and the reason we cannot make the suggested change.
Some of the entries in these tables are discussed further in appropriate segments of the general
discussion beginning at page 6 of this opinion.

14
Table 1:
Deviations from the Text of the Federal Amendments
Illinois Section 40 C.F.R. Section Revision(s)
702.110 “cesspool” 144.3 Placed the defined term in quotation marks;
removed an unnecessary comma; changed
“and/or” to “or”
702.110 “drywell” 144.3 Placed the defined term in quotation marks;
added “that is”; added a comma to offset a
parenthetical
702.110 “improved
sinkhole”
144.3 Placed the defined term in quotation marks;
added “that is”; changed “which” to “that” for a
restrictive relative clause
702.110 “point of
injection”
144.3 Placed the defined term in quotation marks
702.110 “sanitary
waste”
144.3 Placed the defined term in quotation marks;
added a comma to offset a parenthetical
702.110 “septic
system”
144.3 Placed the defined term in quotation marks;
removed the quotation marks for the word
“well”; changed “that” to “which” for a
subsequent restrictive relative clause
702.110 “subsurface
fluid distribution
system”
144.3 Placed the defined term in quotation marks
702.110 “well” 144.3 Removed an unnecessary conjunction “or” from
between the first and second elements of a three-
element series; removed an unnecessary comma
from after the conjunction “or”
704.Table of
Contents
144 Table of
Contents
Altered the heading for Subpart I and the
Section headings in that Subpart, as explained
below for the Subpart and Section headings in
the text of the rule
704.106(a)(3) 144.6(a)(3) Changed “which” to “that” to offset a restrictive
relative clause; changed “one quarter mile” to
“one-quarter mile”
704.145(c) 144.23(c) Changed “ground water” to “groundwater”;
changed “that” to “which” for a subsequent
restrictive relative clause; changed “EPA” to
“USEPA”; omitted the unnecessary words “or a
State,” since this State is not able to authorize
the injection under CERCLA; added a general
reference to Agency authorization by permit
704.146(a) 144.24(a) Added “set forth”
Subpart I Heading 144, Subpart G Omitted “owners and operators of”

15
704.279 144.79 Changed “tells you” to “sets forth”; changed
“apply if you own or operate” to “applicable to
the owner or operator of”; omitted “you
May also be required to follow”; changed “in
the rest of” to “elsewhere in”; added “May also
apply”; changed “these” to “those”; added “in
this Subpart”; added “intended”; used lower
case “underground injection control (UIC)
program”; replaced the reference to the federal
SDWA to a reference to Section 13(c) of the
Act; omitted language explaining the federal
format
704.279 Board note 144.79 Added a citation to the federal source of this
provision; added an explanation of the Board’s
decision not to follow the federal format for this
Subpart
704.280 heading 144.80 Changed “what is” to “definition of”; deleted
question mark
704.280 144.80 Replaced the definition in subsections (a)
through (e) with a cross-reference to the
definition of Section 704.106 (derived from 40
CFR 144.6), leaving the added explanatory text
of subsection (e)
704.280(e) 144.80(e) Changed “you place” to “placed”; changed
“your” to “the”
704.280 Board note 144.80 Added a citation to the federal source of this
provision
704.281 heading 144.81 Changed “does this subpart apply to me?” to
“examples of class V injection wells”
704.281 144.81 Changed the opening statement of applicability
to one stating that the following listing are
examples of wells to which the Subpart applies,
in order to avoid conflict with the applicability
statement in Section 704.279 (derived from 40
C.F.R. 144.79); changed the subsection numbers
(1) through (16) to the appropriate letters (a)
through (p)

16
704.281(b) 144.81(2) Added a comma before “including” to offset a
parenthetical; hyphenated “multiple-dwelling”;
removed an unnecessary comma before
“containing”; changed “which” to “that” for a
restrictive relative clause (twice); added a
comma before “nor” to offset a parenthetical;
added “do they apply”; added “which” for a
subsequent restrictive relative clause; changed
the ending punctuation to a semicolon for
consistency
704.281(c) 144.81(3) Added “that are”
704.281(d) 144.81(4) Added “that are”
704.281(e) 144.81(5) Added “that are”
704.281(f) 144.81(6) Added “that are”
704.281(g) 144.81(7) Added “that are”
704.281(h) 144.81(8) Added “that are”; changed the ending
punctuation to a semicolon for consistency
704.281(i) 144.81(9) Added “that are”; changed “which” to “that” for
a restrictive relative clause; added “which” for a
subsequent restrictive relative clause; changed
the ending punctuation to a semicolon for
consistency
704.281(j) 144.81(10) Added “that are”; changed “non-oil or gas
producing zone” to “non-oil-and-gas-producing
area”
704.281(k) 144.81(11) Added a comma to offset the final element of a
three-element series
704.281(l) 144.81(12) Added “that are”
704.281(m) 144.81(13) Added “that are”
704.281(n) 144.81(14) Added “that are”; changed the ending
punctuation to a semicolon for consistency
704.281(o) 144.81(15) Added “that are”; changed the ending
punctuation to a semicolon for consistency;
added the ending conjunction “and”
704.281(p) 144.81(16) Added “which” for a subsequent restrictive
relative clause; added the indefinite articles “a”
and “an” (three times); changed “new and used
car dealership” to “new or used car dealership”;
changed the reference to the primary drinking
water regulations to cite the Illinois regulations
at 35 Ill. Adm. Code 611, instead of the federal
regulations at 40 C.F.R. 142; changed “which”
to “that” for a restrictive relative clause

17
704.281 Board note 144.81 Added a citation to the federal source of this
provision
704.282 heading 144.82 Changed “what must I do to protect” to
“protection of”; dropped the ending question
mark
704.282 preamble 144.82 Changed the opening statement “if you own or
operate any type of Class V well, the regulations
below require that you cannot” to “this Subpart I
requires that an owner or operator of a Class V
injection well must not”; added “that” for clarity
to the second through fourth restrictive relative
clauses in a series; changed “you” to “the owner
or operator” (five times); changed “your State”
to “the State”; changed “your well” to “its well”
(twice); changed “is” to “are”; added a Board
note citing the source of this provision
704.282(a)(1) 144.82(a)(1) Changed “your” to “an owner’s or operator’s”
(twice); removed the unnecessary comma before
“if the presence . . .”; changed the reference to
the primary drinking water regulations to cite
the Illinois regulations at 35 Ill. Adm. Code 611,
instead of the federal regulations at 40 C.F.R.
142; added “may cause a violation of” before
“other health-based standards” to correlate with
the first element of the series; changed “health
based” to “health-based”
704.282(a)(2) 144.82(a)(2) Changed “Director of the UIC Program in your
State or EPA Region” to “the Agency or
USEPA”; changed “your” to “an owner’s or
operator’s”; changed “he or she” to “the Agency
or USEPA”; changed “you” to “the owner or
operator” (twice); changed “your” to “its”
704.282(b) 144.82(b) Changed “you” to “an owner or operator”;
changed “you” to “the owner or operator”;
changed “disposed” to “disposed of”; changed
“your” to “its”; used lower-case “federal”
704.282(c) 144.82(c) Changed the reference to “Parts 144 through
147” to cite the Illinois regulations at “this Part
and 35 Ill. Adm. Code 702 and 730” (twice);
changed “you” to “the owner or operator”
(twice); changed to lower-cased “UIC program”
(twice); changed “need” to “needs”; added “all
of”; changed “these other parts” to “this Part and
35 Ill. Adm. Code 702 and 730”

18
704.282(d) 144.82(d) Changed “EPA” to “USEPA”; changed the
reference to “Parts 144 through 147” to cite the
Illinois regulations at “this Part and 35 Ill. Adm.
Code 702 and 730”; used lower-case and
hyphenated “federally-derived”; changed “EPA
Regional Offices” to “the Agency and USEPA
Region V”; changed the reference to “parts 144
through 147” to cite both the Illinois and federal
regulations at “this Part and 35 Ill. Adm. Code
702 and 730 and 40 CFR 144 through 147”;
changed “believed” to “such additional
requirements are determined”; omitted sentence
stating that “States can . . . protect USDWs”;
changed “you” to “the owner or operator”; broke
a compound sentence for clarity; Added “the
owner or operator should”; changed “State or
EPA Region” to “Agency or USEPA Region V”
704.282 Board note 144.82 Added a citation to the federal source of this
provision
704.283 heading 144.83 Changed “do I need to notify anyone about my”
to “notification of a”; dropped the ending
question mark
704.283 preamble 144.83 Changed “yes, you need” to “the owner or
operator of a Class V injection well needs”;
changed “your” to “its”; changed “UIC
Director” to “Agency”; changed “you haven’t”
to “the owner or operator has not done so”;
changed “you also need” to “the owner or
operator also needs”; changed “your Program
Director” to “the Agency”
704.283(a) 144.83(a) Changed “you know you have” to “the owner or
operator knows it has”; changed “you” to “the
owner or operator”; changed “UIC Program
Director” to “Agency”; changed “yourself” to
“itself”; changed “your” to “its”
704.283(a) Board
note
144.83 note Changed “note” to “Board note”

19
704.283(a)(1) 144.83(a)(1) Changed the format to incorporate the pertinent
tabular information relating to primacy states
into a single subsection, eliminating
inapplicable segments of the text relating to
direct implementation states and segments
relating to selection of the appropriate segments
of text; changed “State UIC Program” to “the
Agency”; added “information”; changed “you”
to “it”; added “it must submit that information”
704.283(a)(2) 144.83(a)(2) Deleted segments of the text stating applicability
to both direct implementation and primacy state;
changed “here” to “the following”; changed
“you” to “that the owner or operator”
704.283(a)(2)(A) 144.83(a)(2)(i) Changed “you own or operate” to “is owned or
operated”; changed “you” to “the owner or
operator”; changed “legal contact” to “a legal
contact person for the facility”; added the
definite article “the” (five times); changed
“well(s)” to “well or wells” (twice); added the
definite article “the” before “injection well”
704.283(a)(2)(B) 144.83(a)(2)(ii) This provision was replaced with an explanation
that it was omitted because it pertains
exclusively in a “direct implementation state”
704.283(a)(2)(C) 144.83(a)(2)(iii) Changed “you” to “the owner or operator”;
changed “owned or operated” to “it owns or
operates”; moved the closing period inside the
closing parenthesis
704.283(a)(2)(C)(i) 144.83(a)(2)(iii)(A) Added the definite article “the”; changed “your”
to “this”
704.283(a)(2)(C)(ii) 144.83(a)(2)(iii)(B) Added the definite article “the”
704.283(a)(2)(C)(iii) 144.83(a)(2)(iii)(C) Added the definite article “the”
704.283(a)(2)(C)(iv) 144.83(a)(2)(iii)(D) Added the definite article “the”
704.283(a)(2)(C)(v) 144.83(a)(2)(iii)(E) Added the indefinite article “a”
704.283(a)(2)(C)(vi) 144.83(a)(2)(iii)(F) Added the definite article “the”
704.283(a)(2)(C)(vii) 144.83(a)(2)(iii)(G) Added the definite article “the”
704.283(a)(2)(C)(viii
)
144.83(a)(2)(iii)(H) Added the definite article “the”
704.283(a)(2)(C)(ix) 144.83(a)(2)(iii)(I) Added the definite article “the”
704.283(a)(3) 144.83(a)(3) Deleted segments of the text stating applicability
to both direct implementation and primacy state;
changed “you are” to “that the owner or operator
is”

20
704.283(b) 144.83(b) This provision was replaced with an explanation
that it was omitted because it pertains
exclusively in a “direct implementation state”
704.283 Board note 144.83 Added a citation to the federal source of this
provision
704.284 heading 144.84 Changed “do I need to get a permit” to “permit
requirements”; dropped the ending question
mark
704.284 preamble 144.84 Changed “no” to “no permit is required for a
Class V injection well”; changed “you fall” to
“the owner or operator falls”; changed “below”
to “in subsection (b) of this Section”
704.284(a) 144.84(a) Changed “your” to “an owner’s or operator’s”;
changed “you have” to “that the owner or
operator has”; changed “the UIC Program” to
“this Part and 35 Ill. Adm. Code 702 and 730”;
changed “you don’t have” to “the owner or
operator does not need”; changed “you have” to
“the owner or operator has”; changed “your” to
“its”
704.284(b) 144.84(b) Changed the opening descriptive statement to
lower case; changed “you fit” to “an owner or
operator fits”; changed “your” to “its”; changed
“you” to “the owner or operator”; added
“whether . . . categories”; changed “the UIC
Program Director or EPA Region” to “the
Agency or USEPA Region V”; removed “if this
is the case” at the end of “the owner or operator
can find out . . . Region V”; changed “Subpart D
of this Part” to “Subparts D and H of this Part”;
changed to plural “tell”; removed a comma,
deleted “it” and changed to plural “describe” to
create a dependent clause; changed “Subpart E
of this Part outlines” to “Subpart C of 35 Ill.
Adm. Code 702 and Subpart E of this Part
outline”; changed “you” to “the owner or
operator”; changed “you get” to “it gets”; added
the introductory statement “An owner or
operator . . . if any of the following is true:”

21
704.284(b)(1) 144.84(b)(1) Changed “you fail” to “the owner or operator
fails”; changed “of” to “against”; changed
“prohibition against fluid movement standard”
to “prohibition against fluid movement”;
changed “you have to” to “the owner or operator
must”; changed “your” to “its”; changed
“and/or” to “or”; changed “UIC Program
Director of your State or EPA Region” to
“Agency or USEPA Region V”
704.284(b)(2) 144.84(b)(2) Changed “you own or operate a Class V large-
capacity cesspool” to “the Class V injection well
is a large-capacity cesspool”; changed “below”
to “set forth in Section 704.288”; changed “a
Class V motor vehicle waste disposal well” to
“the Class V injection well is a motor vehicle
waste disposal well”; added the indefinite article
“a”; changed “you” to “the owner or operator”;
changed “your” to “its”; added “set forth”
changed “this subsection” to “Section 704.288”;
deleted the past effective date of April 5, 2000,
but added a Board note that references the
corresponding federal provision that includes
the date
704.284(b)(3) 144.84(b)(3) Changed “you are” to “the owner or operator
is”; changed “UIC Program Director of your
State or EPA Region” to “Agency or USEPA
Region V”; changed “the rule authorization” to
“the authorization by rule”; changed “upon” to
“on”; changed “you are” to “the owner or
operator is”; changed “your” to “its”; added “the
occurrence either of the following”
704.284(b)(3)(A) 144.84(b)(3)(i) Added the definite article “the”; added “of the
owner or operator”; added a comma before “as
specified” to offset a parenthetical; changed
“Director” to “Agency”
704.284(b)(3)(B) 144.84(b)(3)(ii) Added the definite article “the”; added the
indefinite article “a”
704.284(b)(4) 144.84(b)(4) Changed “you have” to “the owner or operator
has”; changed “your UIC Program Director” to
“the Agency”; changed “you are” to “the owner
or operator is”; changed “your” to “its”; changed
“you comply” to “it complies”
704.284(b)(5) 144.84(b)(5) This provision was replaced with an explanation
that it was omitted because it pertains
exclusively in a “direct implementation state”

22
704.284 Board note 144.84 Added a citation to the federal source of this
provision
704.285 heading 144.85 Changed “do these additional requirements
apply to me” to “applicability of the additional
requirements”; dropped the ending question
mark
704.285(a) 144.85(a) Put introductory words in lower case; added “set
forth in Section 704.288”; omitted unnecessary
words “regardless of their location”; changed
“you are” to “the owner or operator is” (twice);
added a comma to offset the “if” clause;
changed “this subpart” to “Section 704.288”
704.285(b) 144.85(b) Put introductory words in lower case; changed
“you have” to “the owner or operator has”;
added a comma to offset the “if” clause;
changed “these requirements” to “the additional
requirements in Section 704.288”; changed
“you” to “that owner or operator”; changed
“your” to “the”; changed “State or EPA Region”
to “the Agency, the Board, or USEPA Region
V”; omitted language relating to a state failure
to identify groundwater protection areas or
sensitive groundwater areas; added a Board note
explaining this omission
704.285(c) 144.85(c) Added “in Section 704.288”; deleted the past
effective date of April 5, 2000, but added a
Board note that references the corresponding
federal provision that includes the date
704.285 Board note 144.85 Added a citation to the federal source of this
provision
704.286 heading 144.86 Changed “what are the definitions I need to
know” to “definitions”; dropped the ending
question mark
704.286 “state
drinking water source
assessment and
protection program”
144.86(a) Used lower case for the defined term and placed
it in quotation marks; added a reference to the
section of SDWA involved, including the
citation to the
United States Code
; added “Board
Note: Under the federal requirements”; changed
“EPA” to “USEPA”; changed “States” to “each
state”; added “the following”; added references
to the Act and Illinois Groundwater Protection
Act, including corresponding regulations

23
704.286 “complete
local source water
assessment for
groundwater
protection areas”
144.86(b) Used lower case for the defined term (twice) and
placed its first appearance in quotation marks,
rendering “groundwater” as a single word;
changed “EPA” to “USEPA”; changed “States”
to “the state”; changed “their State” to “that
state”; changed “this rule” to “this Subpart”;
changed “four requirements” to “the four
following requirements”; changed the series of
four preconditions to four subsidiary subsections
in series; changed “a State” to “the State”;
deleted “first,” “second,” “third,” and “lastly”;
changed the ending punctuation of the
subsidiary subsections from periods to
semicolons and added the conjunction “and”;
added the parenthetical “as such . . .”; removed
quotation marks from “determine . . .
contaminants”; changed “each State” to “the
State”
704.286
“groundwater
protection area”
144.86(c) Used lower case for the defined term and placed
it in quotation marks, dropping the period that
followed it and its repetition in the following
words; changed “and/or” to “or”; changed to
singular “a community or non-transient non-
community water system . . . that uses”; added
the parenthetical “as defined . . .”; rendered
“groundwater” as a single word (twice); added a
reference to the Act definition of “setback
zone”; replaced “States are required” to “federal
law requires”; added the appropriate citation to
the
United States Code
; changed “you” to “an
owner or operator”; changed “your” to “its”;
broke a runon sentence, replacing a comma with
a period and “Board Note: . . . that”; removed
an unnecessary comma; changed “as delineated”
to “delineated as described”; added “federal”
and an appropriate citation to the
United States
Code
704.286 “community
water system”
144.86(d) Used lower case for the defined term and placed
it in quotation marks, dropping the period that
followed it and its repetition in the following
words; added the parenthetical “as defined . . .”;
added “which” for a subsequent relative clause

24
704.286 “non-
transient non-
community water
system”
144.86(e) Used lower case for the defined term and placed
it in quotation marks, dropping the period that
followed it and its repetition in the following
words; added the parenthetical “as defined . . .”;
changed “a public water system” to “is a water
system”; added “which” for a subsequent
relative clause; changed “government/military”
to government or military”
704.286
“delineation”
144.86(f) Used lower case for the defined term and placed
it in quotation marks (twice); changed “a
State’s” to “the State’s”; used lower case for
“drinking water . . . protection program”; used
singular “State”; rendered “groundwater” as a
single word
704.286 “other
sensitive
groundwater areas”
144.86(g) Used lower case for the defined term and placed
it in quotation marks; rendered “groundwater”
as a single word (four times); changed “States”
to “the State”; added a reference to the Act
definition of “regulated recharge area”
704.286 Board note 144.86 Added a citation to the federal source of this
provision
704.287 heading 144.87 Changed “how does the identification of ground
water protection areas and other sensitive
ground water areas affect me” to “location in a
groundwater protection area or another sensitive
area”; dropped the ending question mark
704.287(a) 144.87(a) Changed “you are” to “a person is”; changed
“these new requirements” to “the requirements
of Section 288”; changed “you own or operate”
to “the person owns or operates”; changed “you
are” to “that person is”; rendered “another” as a
single word; omitted language relating to a State
failure to identify areas, adding a Board note to
explain the omission and the existence of
various State laws relating to groundwater
protection
704.287(b) 144.87(b) Used lower case for the opening phrase; added
text explaining that major segments of this
subsection outline requirements applicable to
the State, and that the Board has included those
segments for the purpose of informing the
regulated community
704.287(b)(1) 144.87(b)(1) Changed “States are required” to “USEPA
requires the States”; changed “a State” to “the
State”

25
704.287(b)(1)(A) 144.87(b)(1)(i) Used singular “the owner or operator” and “a
motor vehicle waste disposal well”; changed
“completed assessments” to “the areas of the
completed area assessments”
704.287(b)(1)(B) 144.87(b)(1)(ii) Changed “EPA” to “USEPA”; changed
“progress on” to “progress toward”; added a
comma to offset the introductory conditional
phrase “if . . . extended date”; added a comma to
offset an independent clause “and owners or
operators . . .”
704.287(b)(2) 144.87(b)(2) Changed “UIC Program Director may” to “the
Agency must”; added “if it determines that”;
added a Board note explaining the right to
appeal an Agency determination
704.287(c) 144.87(c) Used lower case for the opening phrase; omitted
text outlining the effects of a state failure to
designate areas; changed “if a State has been
granted” to “if USEPA grants the State”; added
“of the time . . . areas”; changed existing motor
vehicle waste disposal well owners and
operators” to “the owner or operator of an
existing motor vehicle waste disposal well” used
singular “a sensitive groundwater area has”;
changed “they are” to “the owner or operator
is”; changed “a State” to “the State”; omitted
“the rule requirements . . . State and” used
singular “an owner or operator has”; changed
“they are” to “it is”; added a Board note
explaining the omission, outlining the Board’s
interpretation of segments of the federal
language, and directing attention to the Illinois
laws that protect groundwater resources
704.287(d) 144.87(d) Used lower case for the opening phrase; omitted
text outlining the effects of a state failure to
designate areas; changed “how to find out if
your” to “finding our if a”; rendered
“groundwater” as one word (twice); replaced
language imposing informational requirements
on the states with language imposing the duty on
the Agency to maintain the information
available for public inspection and copying and
giving Agency contact information to determine
if a well is located in a groundwater protection
area or another sensitive groundwater area

26
704.287(e) 144.87(e) Used lower case for the opening phrase; moved
the prepositional phrase “after January 1, 2004”;
changed “your State may assess” to “if the State
assesses”; combined three sentences by
replacing periods with a commas, changing
“also, your state may officially re-delineate” to
“or if the State re-delineates,” adding “or if the
State,” and deleting “this would make”; used
singular “an additional area”; omitted redundant
language “that includes . . . well”; added “of
Section 704.288”; changed “well is in such an
area” to “well in such an area”; added “would”;
changed “you if” to “any”; changed “start
applying” to “apply”; changed “you” to “the
affected . . . well”; changed “UIC Program
Director responsible for your area may” to
“Agency must”; added “it determines that”;
added a Board note explaining the right to
appeal an Agency determination
704.287(f) 144.87(f) Deleted the opening phrase; changed “If your
State or EPA Region” to “the State”; added “of
Section 704.288”; changed “you” to “all Class V
injection wells in the State”; added a comma
before and after “regardless of the location”;
changed “January 2008” to “January 1, 2008”
704.287(g) 144.87(h) Renumbered the subsection because USEPA did
not include a 40 C.F.R. 144.27(g); used lower
case for the opening phrase; rendered
“groundwater” as a single word (twice); omitted
language describing USEPA’s expectations of
the states; changed “the Director may” to “the
Agency must”; added “in Section 704.288”;
changed “you” to “an owner or operator”;
changed “even if you are” to “even if the
owner’s or operator’s well is”; added “if the
Agency . . . environment” offset by a comma;
added a Board note explaining the right to
appeal an Agency determination and the
omission of some federal language
704.287 Board note 144.87 Added a citation to the federal source of this
provision
704.288 heading 144.88 Changed “what are the additional requirements”
to “additional requirements”; dropped the
ending question mark

27
704.288 preamble 144.88 Removed the opening definite article; changed
“specified in the following tables” to “as
follows”
704.288(a) 144.88(a) Reformatted the table information into
subsections; changed “if these additional
requirements apply” to “the applicability of
these additional requirements”
704.288(a)(1) 144.88(a)(1) Combined the column heading with the
information in the first column; changed “your”
to “the”; added a colon
704.288(a)(1)(A) 144.88(a)(1)(i) Substituted “the owner or operator must” for the
column heading and combined it with the
information in the second column, then
combined the column heading with the
information in the third column
704.288(a)(1)(B) 144.88(a)(1)(ii) Substituted “the owner or operator must” for the
column heading and combined it with the
information in the second column, then
combined the column heading with the
information in the third column; changed “UIC
Program Director” to “Agency”; changed “your”
to “its”
704.288(a)(1)(B)
Board note
144.88(a)(1)(ii) note Changed “note” to “Board note”; changed
“national” to “the federal”; added “entitled”;
added “available . . . on request”
704.288(a)(2) 144.88(a)(2) Combined the column heading with the
information in the first column, then combined
the headings with the information in the second
and third columns; changed “your” to “the”;
omitted the past date “April 5, 2000”; added a
Board note referencing the federal rule and the
omitted date
704.288(b) 144.88(b) Reformatted the table information into
subsections; changed “if these additional
requirements apply” to “the applicability of
these additional requirements”
704.288(b)(1) 144.88(b)(1) Combined the column heading with the
information in the first column; changed “your”
to “the”; added “the following applies”; added a
colon

28
704.288(b)(1)(A) 144.88(b)(1)(i) Combined the column heading with the
information in the second column, then
combined the column heading with the
information in the third column; changed “your”
to “the” (twice); changed “you” to “the owner or
operator”; changed “within one year of” to
“within one year after”; changed “UIC Program
Director may” to “Agency must”; added “it
determines that”; added ending semicolon
704.288(b)(1)(B) 144.88(b)(1)(ii) Combined the column heading with the
information in the second column, then
combined the column heading with the
information in the third column; changed “your”
to “the”; rendered “groundwater” as a single
word; changed “you” to “the owner or
operator”; changed “UIC Program Director
may” to “Agency must”; added “it determines
that”; added ending semicolon
704.288(b)(1)(C) 144.88(b)(1)(iii) Combined the column heading with the
information in the second column, then
combined the column heading with the
information in the third column; changed “you
plan” to “the owner or operator” plans; moved
the prepositional phrase “by the date . . .
application,” offset by a comma; changed “you
submit” to “the owner or operator submits”;
changed “you” to “the owner or operator”;
changed “MCLs” to “the maximum contaminant
levels (MCLs) for drinking water, set forth in 35
Ill. Adm. Code 611”; changed “your” to “the”
(twice); changed “you choose” to “the owner or
operator chooses”; added ending semicolon
704.288(b)(1)(D) 144.88(b)(1)(iv) Combined the column heading with the
information in the second column, then
combined the column heading with the
information in the third column; changed “you
receive” to “the owner or operator” receives;
changed “you” to “the owner or operator”;
moved the prepositional phrase “by the date . . .
permit”; changed “you choose” to “the owner or
operator chooses”; changed “your” to “the”
(twice); added ending semicolon

29
704.288(b)(1)(E) 144.88(b)(1)(v) Combined the column heading with the
information in the second column, then
combined the column heading with the
information in the third column; changed “if
your well is located in a State which” to “if the
State”; changed “their” to “of its”; placed the
parenthetical information “or . . . Section
704.287” in parentheses; changed “your” to
“the”; changed “you are” to “the well is”;
changed “you” to “the owner or operator”;
added a comma before “unless” to offset
parenthetical information; added ending
semicolon
704.288(b)(1)(F) 144.88(b)(1)(vi) Combined the column heading with the
information in the second column, then
combined the column heading with the
information in the third column; changed “if
your well is in a State that” to “if the State”;
changed “you are” to “the well is”; changed
“you” to “the owner or operator”; changed
“your” to “its”; added a comma before “unless”
to offset parenthetical information; changed
“your” to “the” (twice); added ending semicolon
704.288(b)(1)(G) 144.88(b)(1)(vii) Combined the column heading with the
information in the second column, then
combined the column heading with the
information in the third column; changed “if you
plan” to “if the owner or operator plans”;
changed “your” to “its” (twice); changed “you”
to “the owner or operator”; changed “UIC
Program Director” to “Agency”; changed “your”
to “the”; added ending semicolon and the
conjunction “or”
704.288(b)(1)(G)
Board note
144.88(b)(1)(vii)
note
Changed “note” to “Board note”; changed
“national” to “the federal”; added “entitled”;
added “available . . . on request”
704.288(b)(1) Board
note
144.88(b)(1) Added a Board note explaining the right to
appeal an Agency determination under
subsections (b)(1)(A), (b)(1)(B), or (b)(1)(E)
704.288(b)(2) 144.88(b)(2) Combined the column heading with the
information in the first column; changed “your”
to “the”; omitted the past effective date “April 5,
2000”; added a Board note referencing the
federal rule and the omitted date

30
704.288 Board note 144.88 Added a citation to the federal source of this
provision
704.289 heading 144.89 Changed “how do I close my Class V injection
well” to “closure of a Class V injection well”;
dropped the ending question mark
704.289 preamble 144.89 Changed “closing” to “closing or converting”;
changed “your” to “a”; added a colon
704.289(a)(1) 144.89(a)(1) Changed “you” to “the owner or operator”
(twice); changed “prohibition against fluid
movement standard” to “prohibition against
fluid movement”; added “set forth”; omitted a
sentence relating to additional state standards;
changed ”also must” to “must also”; changed
“disposed” to “disposed of”; changed “your” to
“the”; used lower case “federal”; added
“described”
704.289(a)(2) 144.89(a)(2) Changed “you need” to “the owner or operator
needs” (twice); changed “your” to “its” (twice);
added “the following” (twice); added the
familiar abbreviation “POTW” in parentheses;
changed “you” to “the owner or operator”;
substituted “POTW” for “publicly owned
treatment works” (twice); changed “your” to
“the owner’s or operator’s”; added the indefinite
article “a” before “sewer”
704.289(b) 144.89(b) Changed “UIC Director” to “Agency”; added
“the following two conditions are fulfilled”;
added numbers in parentheses to clearly
delineate the conditions; omitted the
unnecessary semicolon before and comma after
the conjunction “and”
704.289 Board note 144.89 Added a citation to the federal source of this
provision
730.103 “cesspool” 146.3 Placed the defined term in quotation marks;
removed an unnecessary comma; changed
“and/or” to “or”
730.103 “improved
sinkhole”
146.3 Placed the defined term in quotation marks;
added “that is”; changed “which” to “that” for a
restrictive relative clause
730.103 “point of
injection”
146.3 Placed the defined term in quotation marks;
offset the parenthetical “for a Class V well” by
commas; added the indefinite article “a”; used
the singular “well”; added the definite article
“the”

31
730.103 “sanitary
waste”
146.3 Placed the defined term in quotation marks;
added a comma to offset a parenthetical
730.103 “septic
system”
146.3 Placed the defined term in quotation marks;
removed the quotation marks for the word
“well”; removed the parenthetical “as defined in
this Section”; changed “that” to “which” for a
subsequent restrictive relative clause
730.103 “subsurface
fluid distribution
system”
146.3 Placed the defined term in quotation marks
730.103 “well” 146.3 Added a comma to separate the final two
elements of a series; removed the conjunction
“or” form between all but the final two elements
of a series (twice); removed an unnecessary
comma after “hole”’ removed an unnecessary
comma after the conjunction “or”
730.105(a)(3) 146.5(a)(3) Changed “which” to “that” for a restrictive
relative clause; added “402 meters” and
hyphenated “one-quarter” and placed it in
parentheses for consistency
730.110 Section
heading
Board Omitted “Class I, II, III, IV and V” from the
Section heading
730.110(a) 146.10(a) Added “injection”
730.110(b) 146.10(b) Added “injection”; changed “shall” to “must”
730.110(c) 146.10(c) Added “injection”
730.110(c)(1) 146.10(c)(1) Added “injection”; changed “shall” to “must”;
removed an unnecessary comma from before “if
the presence . . .”; added a reference to the
Illinois groundwater quality standards “any of
. . . 35 Ill. Adm. Code 620”; changed
“reiterated” to “listed”
730.110(c)(2) 146.10(c)(2) Changed “shall” to “must”; used lower-case
“federal”
738.118(h) 148.18(h) Substituted an explanatory statement for a
provision marked “reserved” by USEPA
Table 2:
Board Housekeeping Amendments
Section Source Revision(s)
702 authority note Board Added a reference to Section 7.2 of the Act
702.110 preamble JCAR Changed “as to an aid to readers” to “as an aid to
readers”

32
702.110 “aquifer” Board Changed “geological” to “geologic” to make usage
consistent throughout this Section; removed the quotation
marks from “formation,” a term other than the defined
term
702.110 “area of
review”
Board,
JCAR
Changed “the width of that” to “the width of which”;
changed “1/4” to “one-quarter”
702.110 “cesspool” Board Removed the quotation marks from “drywell,” a term
other than the defined term
702.110 “closure” JCAR Removed the quotation marks from “hazardous waste
management facility,” a term other than the defined term;
changed to lower-case “waste management facility”
702.110 “corrective
action management
unit”
Board Changed “35 Ill. Adm. Code 724.Subpart S” to “Subpart
S of 35 Ill. Adm. Code 724”; changed “shall” to “must”
702.110 “disposal
facility”
JCAR Added quotation marks to the second appearance of the
defined term
702.110 “draft
permit”
JCAR Removed quotation marks from “proposed permit,” a
term other than the defined term
702.110 “drilling
mud”
Board Removed the quotation marks from “injection well,” a
term other than the defined term
702.110 “elementary
neutralization unit”
Board Changed “35 Ill. Adm. Code 721.Subpart D” to “Subpart
D of 35 Ill. Adm. Code 721”
702.110 “emergency
permit”
Board Removed the quotation marks from “permit,” a term
other than the defined term
702.110
“Environmental
Protection Agency”
Board Removed the parentheses from the alternative defined
terms “EPA” or “USEPA” and added “or”
702.110 “exempted
aquifer”
Board Removed the quotation marks from “aquifer,” a term
other than the defined term
702.110 “existing
injection well”
Board Removed the quotation marks from “injection well” and
“new injection well,” terms other than the defined term
702.110 “facility or
activity”
Board Removed the quotation marks from “HWM facility” and
“injection well,” terms other than the defined term
702.110 “federal,
State, and local . . .”
JCAR Changed to capitalized “State”
702.110 “fluid” JCAR Added a comma before “whether” to offset a
parenthetical
702.110 “formation
fluid”
Board Removed the quotation marks from “fluid” and
“formation,” terms other than the defined term
702.110 “hazardous
waste management
facility”
JCAR,
Board
Removed the parentheses from the alternative defined
term “HWM facility” and added “or”; removed quotation
marks from “treatment,” “storage,” and “disposal,” terms
other than the defined term

33
702.110 “HWM
facility”
JCAR Removed the quotation marks from “hazardous waste
management facility,” a term other than the defined term;
changed to lower-case “waste management”
702.110 “injection
well”
Board Removed the quotation marks from “well” and “fluids,”
terms other than the defined term
702.110 “injection
zone”
JCAR,
Board
Changed “geological” to “geologic” to make usage
consistent throughout this Section; removed the quotation
marks from “formation” and “well,” terms other than the
defined term
702.110 “major
facility”
Board Removed the quotation marks from “facility or activity,”
a term other than the defined term
702.110 “manifest” Board Changed “35 Ill. Adm. Code 722.Subpart B” to “Subpart
B of 35 Ill. Adm. Code 722”
702.110 “National
Pollutant Discharge
Elimination System”
Board,
JCAR
Changed “35 Ill. Adm. Code 309.Subpart A and 310” to
“Subpart A of 35 Ill. Adm. Code 309 and 35 Ill. Adm.
Code 310”
702.110 “new HWM
facility”
Board Removed the quotation marks from “hazardous waste
management facility,” a term other than the defined term;
used lower-case “hazardous waste management
702.110 “new
injection well”
Board Removed the quotation marks from “well,” a term other
than the defined term
702.110 “off-site” Board Removed the quotation marks from “on-site,” a term
other than the defined term
702.110 “on-site” Board Changed “right(s)-of-way” to “rights-of-way” (twice)
702.110 “owner or
operator”
JCAR,
Board
Deleted the quotation marks from “facility or activity,” a
term other than the defined term; changed “RCRA or
UIC programs” to singular “RCRA or UIC program”
702.110 “permit” Board,
JCAR
Removed the quotation marks from “permit by rule,”
“draft permit,” and “proposed permit,” terms other than
the defined term; changed “35 Ill. Adm. Code
704.Subpart C” to “Subpart C of 35 Ill. Adm. Code 704”;
used lower-cased “draft permit” and “proposed permit”
702.110 “physical
construction”
JCAR Removed the quotation marks from “HWM facility,” a
term other than the defined term
702.110 “point of
injection”
JCAR Changed the em-dash “—” to two en-dashes “--” for
clarity that a single hyphen (en-dash) was not intended
702.110 “POTW” Board Removed quotation marks from “publicly owned
treatment works,” a term other than the defined term
702.110 “publicly
owned treatment
works”
Board Removed parentheses from the alternative defined term
“POTW,” added the conjunction “or”
702.110 “RCRA” Board Added “733” and a comma in the serial listing of Parts
702.110 “remedial
action plan”
Board Changed “35 Ill. Adm. Code 703.Subpart H” to “Subpart
H of 35 Ill. Adm. Code 703”

34
702.110 “schedule of
compliance”
Board Removed quotation marks from “permit” and
“appropriate Act and regulations,” terms other than the
defined term
702.110 “site” Board Removed quotation marks from “facility or activity,” a
term other than the defined term
702.110 “storage” Board Removed quotation marks from “hazardous waste,” a
term other than the defined term
702.110
“underground
injection”
Board Removed quotation marks from “well injection,” a term
other than the defined term
702.110
“underground source
of drinking water”
Board Removed quotation marks from “aquifer” and “exempted
aquifer,” terms other than the defined term
702.110 “USDW” Board Removed quotation marks from “underground source of
drinking water,” a term other than the defined term
702.110 “wastewater
treatment unit”
Board,
JCAR
Changed “which” to “that” for a restrictive relative
clause; changed “35 Ill. Adm. Code 309.Subpart A and
310” to “Subpart A of 35 Ill. Adm. Code 309 and 35 Ill.
Adm. Code 310”
702.110 Board note Board Updated the reference to the
Code of Federal
Regulations
704 authority note Board Added a reference to Section 7.2 of the Act
704 source note Board Restored the missing reference to the amendments of
R94-17
704.102 Board Changed “will be adopted” to “is regulated”; changed
“Illinois Department of Mines and Minerals” to “Illinois
Department of Natural Resources, Office of Mines and
Minerals, Oil and Gas Division”; changed “Section 1425
of the SDWA . . .” to “the Illinois Oil and Gas Act . . .”;
changed “shall” to “must”; changed “704.Subpart C” to
“Subpart C of this Part”
704.102 Board Note Board Added “preamble” to the
Code of Federal Regulations
reference; updated the reference to the 1999 edition
704.105(b) JCAR Changed “these regulations” to “this Part”
704.105(b)(4) JCAR Changed “hydro carbons” to “hydrocarbons”
704.105 Board Note Board Updated the reference to the
Code of Federal
Regulations
to the 1999 edition and added a reference to
a subsequent amendment that appeared in the
Federal
Register
704.106(a)(1) Board Corrected “and” to “an”
704.106(a)(2) JCAR Changed “one quarter mile” to “one-quarter mile”
704.106(c) Board Restored the missing word “fluids”; corrected to plural
“minerals”

35
704.106(c)(2) Board,
JCAR
Restored the missing word “mining”; added the ending
conjunction “and”
704.106(d)(1) Board Changed “owners or operators” to “owners and
operators” (twice); added hyphenation to the compound
“one-quarter”
704.106(d)(2) Board Corrected “owners or operators” to “owners and
operators” (twice)
704.106(d)(3) Board Corrected “owners or operators” to “owners and
operators”
704.106 Board Note Board,
JCAR
Corrected the note format; added “derived from” before
the citation; updated the reference to the
Code of Federal
Regulations
to the 1999 edition
704.145(b)(1) Board Changed “shall” to “must”
704.145(b)(3) Board Changed “shall” to “must”
704.145 Board note Board Updated the reference to the
Code of Federal
Regulations
to the 1999 edition and added a reference to
a subsequent amendment that appeared in the
Federal
Register
704.146 Board note Board Updated the reference to the
Code of Federal
Regulations
to the 1999 edition and added a reference to
a subsequent amendment that appeared in the
Federal
Register
704.148 Board Changed “shall” to “must”; changed “subsection (d) or
(e) below” to “subsection (d) or (e) of this Section”
704.148(a) Board Changed “shall” to “must”
704.148(b) Board Changed “subsection (b)(1) below” to “subsection (b)(1)
of this Section”; changed “shall” to “must”; changed
“subsection (b)(2) below” to “subsection (b)(2) of this
Section”
704.148(b)(1) Board Added subsection (b)(1)(A) to correspond with 40 CFR
144.26(b)(1)(i), explaining that Class II wells are
regulated by the Department of Natural Resources;
renumbered subsections (b)(1)(A) and (b)(1)(B) to
subsections (b)(1)(B) and (b)(1)(C)
704.148(b)(2) Board,
JCAR
Changed “subsection (b)(1) above” to “subsection (b)(1)
of this Section”; changed “shall” to “must”; moved the
closing period inside the closing parenthesis
704.148(b)(2)(A) Board Added subsection (b)(2)(A) to correspond with 40 CFR
144.26(b)(2)(i), explaining that Class II wells are
regulated by the Department of Natural Resources
704.148(b)(2)(B) Board Renumbered from subsection (b)(1)(A)
704.148(b)(2)(C) Board Renumbered from subsection (b)(1)(B)
704.148(b)(2)(D) Board Renumbered from subsection (b)(1)(C)
704.148(b)(2)(E) Board Renumbered from subsection (b)(1)(D)

36
704.148(b)(2)(F) Board Renumbered from subsection (b)(1)(E)
704.148(b)(2)(G) Board Renumbered from subsection (b)(1)(F)
704.148(b)(2)(H) Board Renumbered from subsection (b)(1)(G)
704.148(b)(2)(I) Board Renumbered from subsection (b)(1)(H)
704.148(b)(2)(J) Board Renumbered from subsection (b)(1)(I)
704.148(c) Board Changed “U.S. EPA” to “USEPA”
704.148(d) Board,
JCAR
Changed “subsection (e) below” to “subsection (e) of this
Section”; changed the former closing colon to a comma,
deleted former subsection (d)(2) and incorporated the
former text of subsection (d)(1) into subsection (d);
changed “shall” to “must”
704.148(d)(1) Board Changed “shall” to “must” and incorporated the former
text of this subsection into subsection (d)
704.148(d)(2) Board Removed this subsection
704.148(e)(1) Board Changed “U.S. EPA” to “USEPA”; changed “subsection
(d) above” to “subsection (d) of this Section”
704.148(e)(2) Board Changed “shall” to “must”
704.148(e)(3) Board Changed “shall” to “must”
704.148(e)(4) Board Changed “subsection (e)(2) or (e)(3) above” to
“subsection (e)(2) or (e)(3) of this Section”
704.148 Board note Board Updated the reference to the
Code of Federal
Regulations
to the 1999 edition and added a reference to
a subsequent amendment that appeared in the
Federal
Register
730 Table of
Contents
JCAR Removed “Class I and Class III” from the heading of
Section 730.110; corrected “correction” to “corrective” in
the heading of Section 730.164 to agree with the text;
deleted “by the director from the heading of Section
730.170 to agree with the text
730 authority note Board Added a reference to Section 7.2 of the Act
730.103 “abandoned
well”
Board Changed “which” to “that”
730.103 “Act” Board,
JCAR
Deleted the comma after “1976”; changed “U.S.C.” to
“USC”; moved the period outside the parenthesis mark
730.103
“application”
JCAR Changed “703.182 et seq.” to “703.182-703.188 and
703.200”
730.103 “aquifer” Board Changed “geological” to “geologic” to make usage
consistent with that in 35 Ill. Adm. Code 702.110
730.103 “area of
review”
Board Changed “1/4” to “one-quarter”
730.103 “casing” JCAR Changed “water gas or other fluid” to “water, gas, or
other fluid”

37
730.103 “confining
zone”
Board Changed “geological” to “geologic” to make usage
consistent with that in 35 Ill. Adm. Code 702.110 and
throughout this Section
730.103 “drywell” Board Added “that is”; added a comma to offset a parenthetical
730.103
“Environmental
Protection Act”
Board Changed the reference to the Illinois Revised Statutes to
a reference to the Illinois Compiled Statutes
730.103 “EPA” JCAR,
Board
Added the alternative defined term “or ‘USEPA’”
730.103 “exempted
aquifer”
Board Added a comma after “704.104” to segregate the final
element of a series
730.103
“experimental
technology”
Board Changed “which” to “that”
730.103 “facility or
activity”
Board Removed the quotation marks from “HWM facility” and
“injection well,” terms other than the defined term; added
a comma after “well” to offset the final element of a
series
730.103 “flow rate” JCAR Changed “which” to “that”
730.103 “fluid” JCAR Changed “which” to “that”; added a comma after
“moves” to offset a parenthetical
730.103 “formation” Board Changed “which” to “that”
730.103 “formation
fluid”
Board Removed the quotation marks from “fluid” and
“formation,” terms other than the defined term
730.103 “hazardous
waste management
facility”
JCAR,
Board
Changed to lower-case “waste management”; removed
the parentheses from the alternative defined term
“USDW” and added “or”
730.103 “HWM
facility”
Board Removed the quotation marks from “hazardous waste
management facility,” a term other than the defined term;
changed to lower-case “waste management”
730.103 “injection
well”
Board Removed the quotation marks from “well” and “fluids,”
terms other than the defined term
730.103 “injection
zone”
JCAR,
Board
Changed “geological” to “geologic” to make usage
consistent with that in 35 Ill. Adm. Code 702.110 and
throughout this Section; removed the quotation marks
from “formation,” a term other than the defined term
730.103 “owner or
operator”
JCAR,
Board
Deleted the definite article “the” from before “RCRA”;
added the conjunction “or” before the final element of a
series; added the definite article “the” before
“Environmental Protection Act”
730.103 “packer” Board Changed “which” to “that”
730.103 “permit” Board,
JCAR
Changed “which” to “that”; removed the quotation marks
from “draft permit” and “proposed permit,” terms other
than the defined term

38
730.103 “plugging
record”
Board Changed “which” to “that”
730.103 “radioactive
waste”
Board Changed “which” to “that”
730.103 “RCRA” Board Replaced “Act” with a citation to the federal statute as set
forth at the definition of “Act”
730.103 “SDWA” JCAR Changed “Pub. L.” to “P.L.”; changed “U.S.C.” to
“USC”
730.103 “sole or
principal source
aquifer”
Board,
JCAR
Changed “which” to “that”; changed “Sections 1424(a)
or (3) of the SDWA” to “Section 1424(a) or (e) of
SDWA”
730.103
“subsidence”
JCAR Changed to lower-case “hydrocompaction”
730.103 “total
dissolved solids”
Board Removed the parentheses from the alternative defined
term “TDS” and added “or”
730.103
“underground source
or drinking water”
Board Removed the parentheses from the alternative defined
term “USDW” and added “or”; removed the quotation
marks from “aquifer,” a term other than the defined term;
added “of which the following is true”; changed the
opening “which” to “it” to provide a subject and
complete a sub-paragraph statement (three times); added
the opening “it” to provide a subject and complete a sub-
paragraph statement
730.103 “USDW” Board Removed the quotation marks from “underground source
of drinking water,” a term other than the defined term
730.103 “well
stimulation”
JCAR Added a comma after “injected” to offset a parenthetical
730.103 Board note Board Updated the reference to the
Code of Federal
Regulations
to the 1999 edition and added a reference to
a subsequent amendment that appeared in the
Federal
Register
730.105(a)(1) Board,
JCAR
Changed to the generalized singular “hazardous waste”;
changed “1/4” to “one-quarter”
730.105(a)(2) Board Changed “1/4” to “one-quarter”
730.105(d)(1) Board Changed “1/4” to “one-quarter”
730.105(d)(2) Board Changed “1/4” to “one-quarter”
730.105(d)(3) Board Changed “subsection (a)(2), (d)(1), or (d)(2) above” to
“subsection (a)(2), (d)(1), or (d)(2) of this Section”
730.105(e) Board Added “the following”
730.110(a)(1) Board Changed “shall” to “must”
730.110(a)(4) Board Corrected the cross-references from “35 Ill. Adm. Code
704.188 and 704.187” to “35 Ill. Adm. Code 704.181(f)
and 704.188”; changed “shall” to “must”
730.167 heading JCAR Removed the ending period from the Section heading

39
730.167(a) Board Changed “shall” to “must” (three times); changed
“which” to “that” for a restrictive relative clause
730.167(c) Board Changed “shall” to “must”
730.167(d) Board Changed “shall” to “must”
730.167(e) Board Changed “which” to “that” for a restrictive relative clause
730.167(e)(1) Board Added a comma before the conjunction before the last
element of a series
730.167(e)(2) Board Changed “which” to “that” for a restrictive relative clause
730.167(f) Board Changed “shall” to “must” (twice); changed a comma to
a semicolon after “fluids” to separate elements of a series
that contains sub-elements separated by commas
730.167(g) Board Changed “shall” to “must” (twice); changed “subsection
(f)” to “subsection (f) of this Section”
730.167(h) Board Changed “subsection (g)” to “subsection (g) of this
Section”; changed “shall” to “must”
730.167(i)(1) Board Changed “shall” to “must”
730.167(i)(2) Board Changed “shall” to “must”
730.167 Board note Board Updated the reference to the
Code of Federal
Regulations
to the 1999 edition
738 authority note Board Added a reference to Section 7.2 of the Act
738.118(b) Board Removed the past effective date
738.118(d) Board Removed the past effective date
738.118(e) Board Changed the listing of USEPA hazardous waste numbers
into the paragraph format to save space
738.118(g) Board Changed the listing of USEPA hazardous waste numbers
into the paragraph format to save space
738.118(i) Board Removed the past effective date
Table 3:
Revisions to the Text of the Proposed Amendments in Final Adoption
Section Revised Source(s) of
Revision(s)
Revision(s)
702 authority note Board Added a reference to Section 7.2 of the Act
702.110 preamble JCAR Changed “as to an aid to readers” to “as an aid to
readers”
702.110 “aquifer” Board Changed “geological” to “geologic” to make usage
consistent throughout this Section; removed the quotation
marks from “formation,” a term other than the defined
term
702.110 “area of
review”
JCAR Changed “the width of that” to “the width of which”
702.110 “cesspool” Board Removed the quotation marks from “drywell,” a term
other than the defined term

40
702.110 “closure” JCAR Removed the quotation marks from “hazardous waste
management facility,” a term other than the defined term;
changed to lower-case “waste management facility”
702.110 “disposal
facility”
JCAR Added quotation marks to the second appearance of the
defined term
702.110 “draft
permit”
JCAR Removed quotation marks from “proposed permit,” a
term other than the defined term
702.110 “drilling
mud”
Board Removed the quotation marks from “injection well,” a
term other than the defined term
702.110 “emergency
permit”
Board Removed the quotation marks from “permit,” a term
other than the defined term
702.110
“Environmental
Protection Agency”
Board Removed the parentheses from the alternative defined
terms “EPA” or “USEPA” and added “or”
702.110 “exempted
aquifer”
Board Removed the quotation marks from “aquifer,” a term
other than the defined term
702.110 “existing
injection well”
Board Removed the quotation marks from “injection well” and
“new injection well,” terms other than the defined term
702.110 “facility or
activity”
Board Removed the quotation marks from “HWM facility” and
“injection well,” terms other than the defined term
702.110 “federal,
State, and local . . .”
JCAR Changed to capitalized “State”
702.110 “fluid” JCAR Added a comma before “whether” to offset a
parenthetical
702.110 “formation
fluid”
Board Removed the quotation marks from “fluid” and
“formation,” terms other than the defined term
702.110 “hazardous
waste management
facility”
JCAR,
Board
Removed the parentheses from the alternative defined
term “HWM facility” and added “or”; removed quotation
marks from “treatment,” “storage,” and “disposal,” terms
other than the defined term
702.110 “HWM
facility”
JCAR Removed the quotation marks from “hazardous waste
management facility,” a term other than the defined term;
changed to lower-case “waste management”
702.110 “injection
well”
Board Removed the quotation marks from “well” and “fluids,”
terms other than the defined term
702.110 “injection
zone”
JCAR,
Board
Changed “geological” to “geologic” to make usage
consistent throughout this Section; removed the quotation
marks from “formation” and “well,” terms other than the
defined term
702.110 “major
facility”
Board Removed the quotation marks from “facility or activity,”
a term other than the defined term
702.110 “National
Pollutant Discharge
Elimination System”
JCAR Changed “Subpart A of 35 Ill. Adm. Code 309 and 310”
to “Subpart A of 35 Ill. Adm. Code 309 and 35 Ill. Adm.
Code 310”

41
702.110 “new HWM
facility”
Board Removed the quotation marks from “hazardous waste
management facility,” a term other than the defined term;
used lower-case “hazardous waste management
702.110 “new
injection well”
Board Removed the quotation marks from “well,” a term other
than the defined term
702.110 “off-site” Board Removed the quotation marks from “on-site,” a term
other than the defined term
702.110 “on-site” Board Changed “right(s)-of-way” to “rights-of-way” (twice)
702.110 “owner or
operator”
JCAR,
Board
Deleted the quotation marks from “facility or activity,” a
term other than the defined term; changed “RCRA or
UIC programs” to singular “RCRA or UIC program”
702.110 “permit” JCAR Removed the quotation marks from “permit by rule,”
“draft permit,” and “proposed permit,” terms other than
the defined term; used lower-cased “draft permit” and
“proposed permit”
702.110 “physical
construction”
JCAR Removed the quotation marks from “HWM facility,” a
term other than the defined term
702.110 “point of
injection”
JCAR Changed the em-dash “—” to two en-dashes “--” for
clarity that a single hyphen (en-dash) was not intended
702.110 “POTW” Board Removed quotation marks from “publicly owned
treatment works,” a term other than the defined term
702.110 “publicly
owned treatment
works”
Board Removed parentheses from the alternative defined term
“POTW,” added the conjunction “or”
702.110 “RCRA” Board Added “733” and a comma in the serial listing of Parts
702.110 “schedule of
compliance”
Board Removed quotation marks from “permit” and
“appropriate Act and regulations,” terms other than the
defined term
702.110 “site” Board Removed quotation marks from “facility or activity,” a
term other than the defined term
702.110 “storage” Board Removed quotation marks from “hazardous waste,” a
term other than the defined term
702.110
“underground
injection”
Board Removed quotation marks from “well injection,” a term
other than the defined term
702.110
“underground source
of drinking water”
Board Removed quotation marks from “aquifer” and “exempted
aquifer,” terms other than the defined term
702.110 “USDW” Board Removed quotation marks from “underground source of
drinking water,” a term other than the defined term
702.110 “wastewater
treatment unit”
JCAR Changed “which” to “that” for a restrictive relative
clause; changed “Subpart A of 35 Ill. Adm. Code 309 and
310” to “Subpart A of 35 Ill. Adm. Code 309 and 35 Ill.
Adm. Code 310”

42
704 authority note Board Added a reference to Section 7.2 of the Act
704.102 JCAR Changed “62 ILCS 240” to “62 Ill. Adm. Code 240”
704.105(b) JCAR Changed “these regulations” to “this Part”
704.105(b)(4) JCAR Changed “hydro carbons” to “hydrocarbons”
704.106(a)(2) JCAR Changed “one quarter mile” to “one-quarter mile”
704.106(a)(3) JCAR Changed “one quarter mile” to “one-quarter mile”
704.106(c)(2) JCAR Added the ending conjunction “and”
704.106(d)(1) JCAR Changed “owners or operators” to “owners and
operators” (twice) to agree with similar amendments in
subsections (d)(2) and (d)(3)
704.106 Board note JCAR Added “derived from” before the citation to the
Code of
Federal Regulations
source of this Section
704.145(c) JCAR Changed “ground water” to “groundwater”; changed
“U.S.C.” to “USC” (twice)
704.148(b)(1)(A) JCAR Changed “62 ILCS 240” to “62 Ill. Adm. Code 240”
704.148(b)(2) JCAR Moved the closing period inside the closing parenthesis
704.148(b)(2)(A) JCAR Removed an unnecessary period from “144.26(b)(2)(i)”;
changed “62 ILCS 240” to “62 Ill. Adm. Code 240”
704.148(d) JCAR,
Board
Changed the former closing colon to a comma; deleted
former subsection (d)(2) and incorporated the former text
of subsection (d)(1) into subsection (d); changed “shall”
to “must”
704.148(d)(1) JCAR,
Board
Changed “shall” to “must”; incorporated the former text
of this subsection into subsection (d)
704.148(d)(2) JCAR,
Board
Removed this subsection
704.279 Board note Board Corrected the cross reference to “40 CFR 144.79”
704.280 Board note Board Corrected the cross reference to “40 CFR 144.80”
704.281(j) JCAR,
Board
Changed “non-oil or gas producing zone” to “non-oil-
and-gas-producing area”
704.281 Board note Board Corrected the cross reference to “40 CFR 144.81”
704.282(a)(1) Board,
JCAR
Corrected the reference to “Section 704.122(a)”;
removed the unnecessary comma before “if the presence
. . .”; added “may cause a violation of” before “other
health-based standards” to correlate with the first element
of the series; changed “health based” to “health-based”
704.282(a)(2) Board Corrected the reference to “Section 704.122(c), (d), or
(e)”
704.282(b) JCAR Changed “disposed” to “disposed of”; changed “your” to
“its”
704.282(c) JCAR Changed to capitalized “Subpart”; changed to lower-
cased “UIC program” (twice)
704.282 Board note Board Corrected the cross reference to “40 CFR 144.82”
704.283(a) JCAR Changed the reference “Subpart G” to “Subpart I”

43
704.283(a)(2)(A) JCAR Added the definite article “the” before “injection well”
704.283(a)(2)(C) JCAR Moved the closing period inside the closing parenthesis
704.283 Board note Board Corrected the cross reference to “40 CFR 144.83”
704.284(b) JCAR Removed “if this is the case” at the end of “the owner or
operator can find out . . . Region V”; changed to plural
“tell”; removed a comma, deleted “it” and changed to
plural “describe” to create a dependent clause
704.284(b)(1) JCAR Changed “prohibition against fluid movement standard”
to “prohibition against fluid movement”
704.284(b)(3) JCAR Changed “either or the following” to “either of the
following”
704.284 Board note Board Corrected the cross reference to “40 CFR 144.84”
704.285(b) Board
note
JCAR Changed to capitalized “Statewide” (twice); changed
“state-wide” to “Statewide”; added “Section 8 of”
704.285 Board note Board Corrected the cross reference to “40 CFR 144.85”
704.286 “state source
water . . .”
JCAR Changed “U.S.C.” to “USC”
704.286 “state source
water . . .” Board
note
JCAR Changed to all capitals “BOARD NOTE”
704.286 “complete
local source water
. . .” Board note
Board Changed the series of four preconditions to four
subsidiary subsections in series; changed “a State” to “the
State”; deleted “first,” “second,” “third,” and “lastly”;
changed the ending punctuation of the subsidiary
subsections from periods to semicolons and added the
conjunction “and”; changed “each State” to “the State”
704.286
“groundwater
protection area”
JCAR Changed “U.S.C.” to “USC” (twice)
704.286
“groundwater
protection area”
Board note
JCAR Changed to lower-case “states”
704.286 “community
water system”
JCAR Moved the comma outside the quotation mark
704.286 “non-
transient, non-
community water
system”
JCAR Moved the comma outside the quotation mark
704.286
“delineation”
JCAR Moved the period outside the quotation mark
704.286 “other
sensitive
groundwater areas”
JCAR Moved the period outside the quotation mark

44
704.286 Board note Board Corrected the cross reference to “40 CFR 144.86”
704.287(a) Board
note
JCAR Changed to lower-case “state”; changed the reference
“Subpart G” to “Subpart I”; added a comma after “[415
ILCS 55]” to offset a parenthetical
704.287(b)(1)(B) JCAR Changed to lower-case “state” (four times)
704.287(c) JCAR Changed to capitalized “Section”
704.287(c) Board
note
JCAR Added “Section 8 of”
704.287(d) JCAR,
Board
Changed “Agency Bureau of Water” to “Illinois
Environmental Protection Agency, Bureau of Water”
704.287(e) JCAR Changed “well is in such an area” to “well in such an
area”
704.287(f) JCAR Changed “January 2008” to “January 1, 2008”
704.287 Board note Board Corrected the cross reference to “40 CFR 144.87”
704.288 preamble JCAR Removed the opening definite article
704.288(b)(1) JCAR,
Board
Changed “and any of the following is also true” to “the
following applies”
704.288(b)(1)(A) Board,
JCAR
Added the opening “if”; changed “within one year of” to
“within one year after”; removed the conjunction “or”
from the end
704.288(b)(1)(B) Board Added the opening “if”; removed the conjunction “or”
from the end
704.288(b)(1)(C) Board,
JCAR
Added the opening “if”; removed the unnecessary comma
from before the prepositional phrase “by the date . . .”;
removed the conjunction “or” from the end
704.288(b)(1)(D) Board Added the opening “if”; removed the conjunction “or”
from the end
704.288(b)(1)(E) Board,
JCAR
Added the opening “if”; changed “their” to “of its”;
removed the conjunction “or” from the end
704.288(b)(1)(F) Board,
JCAR
Added the opening “if”; added a comma before the
parenthetical “in which case . . .”
704.288(b)(1)(G) Board Added the opening “if”
704.288 Board note Board Corrected the cross reference to “40 CFR 144.88”
704.289 preamble JCAR Changed “closing” to “closing or converting”
704.289(a)(1) JCAR Changed “prohibition against fluid movement standard”
to “prohibition against fluid movement”; corrected the
reference to “Section 704.122”; changed “disposed” to
“disposed of”
704.289(a)(2) JCAR Added the indefinite article “a” before “sewer”
704.289 Board note Board Corrected the cross reference to “40 CFR 144.89”

45
730 table of contents JCAR Removed “Class I and Class III” from the heading of
Section 730.110; corrected “correction” to “corrective” in
the heading of Section 730.164 to agree with the text;
deleted “by the director from the heading of Section
730.170 to agree with the text
730 authority note Board Added a reference to Section 7.2 of the Act
730.103 “abandoned
well”
Board Changed “which” to “that”
730.103 “Act” JCAR Deleted the comma after “1976”; changed “U.S.C.” to
“USC”
730.103
“application”
JCAR Changed “703.182 et seq.” to “703.182-703.188 and
703.200”
730.103 “aquifer” Board Changed “geological” to “geologic” to make usage
consistent with that in 35 Ill. Adm. Code 702.110
730.103 “casing” JCAR Changed “water gas or other fluid” to “water, gas, or
other fluid”
730.103 “confining
zone”
Board Changed “geological” to “geologic” to make usage
consistent with that in 35 Ill. Adm. Code 702.110 and
throughout this Section
730.103 “EPA” JCAR,
Board
Added the alternative defined term “or ‘USEPA’”
730.103 “exempted
aquifer”
Board Added a comma after “704.104” to segregate the final
element of a series
730.103
“experimental
technology”
Board Changed “which” to “that”
730.103 “facility or
activity”
Board Removed the quotation marks from “HWM facility” and
“injection well,” terms other than the defined term; added
a comma after “well” to offset the final element of a
series
730.103 “flow rate” JCAR Changed “which” to “that”
730.103 “fluid” JCAR Changed “which” to “that”; added a comma after
“moves” to offset a parenthetical
730.103 “formation” Board Changed “which” to “that”
730.103 “formation
fluid”
Board Removed the quotation marks from “fluid” and
“formation,” terms other than the defined term
730.103 “hazardous
waste management
facility”
JCAR,
Board
Changed to lower-case “waste management”; removed
the parentheses from the alternative defined term
“USDW” and added “or”
730.103 “HWM
facility”
Board Removed the quotation marks from “hazardous waste
management facility,” a term other than the defined term;
changed to lower-case “waste management”
730.103 “injection
well”
Board Removed the quotation marks from “well” and “fluids,”
terms other than the defined term

46
730.103 “injection
zone”
JCAR,
Board
Changed “geological” to “geologic” to make usage
consistent with that in 35 Ill. Adm. Code 702.110 and
throughout this Section; removed the quotation marks
from “formation,” a term other than the defined term
730.103 “owner or
operator”
JCAR,
Board
Deleted the definite article “the” from before “RCRA”;
added the conjunction “or” before the final element of a
series; added the definite article “the” before
“Environmental Protection Act”
730.103 “packer” Board Changed “which” to “that”
730.103 “permit” Board,
JCAR
Changed “which” to “that”; removed the quotation marks
from “draft permit” and “proposed permit,” terms other
than the defined term
730.103 “plugging
record”
Board Changed “which” to “that”
730.103 “radioactive
waste”
Board Changed “which” to “that”
730.103 “RCRA” Board Replaced “Act” with a citation to the federal statute as set
forth at the definition of “Act”
730.103 “SDWA” JCAR Changed “Pub. L.” to “P.L.”; changed “U.S.C.” to
“USC”
730.103 “septic
system”
Board Removed the parenthetical “as defined in this Section”
730.103 “sole or
principal source
aquifer”
Board,
JCAR
Changed “which” to “that”; changed “Sections 1424(a)
or (3) of the SDWA” to “Section 1424(a) or (e) of
SDWA”
730.103
“subsidence”
JCAR Changed to lower-case “hydrocompaction”
730.103 “total
dissolved solids”
Board Removed the parentheses from the alternative defined
term “TDS” and added “or”
730.103
“underground source
or drinking water”
Board Removed the parentheses from the alternative defined
term “USDW” and added “or”; removed the quotation
marks from “aquifer,” a term other than the defined term;
added “of which the following is true”; changed the
opening “which” to “it” to provide a subject and
complete a sub-paragraph statement (three times); added
the opening “it” to provide a subject and complete a sub-
paragraph statement
730.103 “USDW” Board Removed the quotation marks from “underground source
of drinking water,” a term other than the defined term
730.103 “well
stimulation”
JCAR Added a comma after “injected” to offset a parenthetical
730.105(a)(1) JCAR Changed to the generalized singular “hazardous waste”
730.110 Section
heading
Board Removed “Class I and Class III” from the Section
heading

47
730.110(c)(1) Board Added “may cause a violation of” before “other health-
based standards” to correlate with the first element of the
series; changed “reiterated” to “listed”
730.167 heading JCAR Removed the ending period from the Section heading
730.167(a) Board Changed “shall” to “must” (three times); changed
“which” to “that” for a restrictive relative clause
730.167(c) Board Changed “shall” to “must”
730.167(d) Board Changed “shall” to “must”
730.167(e) Board Changed “which” to “that” for a restrictive relative clause
730.167(e)(1) Board Added a comma before the conjunction before the last
element of a series
730.167(e)(2) Board Changed “which” to “that” for a restrictive relative clause
730.167(f) Board Changed “shall” to “must” (twice); changed a comma to
a semicolon after “fluids” to separate elements of a series
that contains sub-elements separated by commas
730.167(g) Board Changed “shall” to “must” (twice); changed “subsection
(f)” to “subsection (f) of this Section”
730.167(h) Board Changed “subsection (g)” to “subsection (g) of this
Section”; changed “shall” to “must”
730.167(i)(1) Board Changed “shall” to “must”
730.167(i)(2) Board Changed “shall” to “must”
730.167 Board note Board Updated the reference to the
Code of Federal
Regulations
to the 1999 edition
738 authority note Board Added a reference to Section 7.2 of the Act
Table 4
Requested Revisions to the Text of the Proposed Amendments Not Made in Final
Adoption
Section Affected Source(s) of Request:
Requested Revision(s)
Explanation
702.110 “appropriate act
and regulations”
JCAR: Capitalize “act” in
“appropriate act and
regulations”
The word “act” is not used as a proper
noun, and capitalization could cause
confusion
702.110 “on-site” JCAR: Conform the
definition to the definition
of the same term at
recently-amended 35 Ill.
Adm. Code 809.103
The Board cannot make the suggested
revision for the reasons discussed
above at page 12 of this opinion and
order
704.106(d)(1) JCAR: Add a comma
before “to dispose of”
The prepositional phrase is not a
parenthetical or independent clause
that needs to be offset by a comma

48
704.106(d)(2) JCAR: Add a comma
before “to dispose of”
The prepositional phrase is not a
parenthetical or independent clause
that needs to be offset by a comma
704.148(e)(2) JCAR: Delete the obsolete
provision
Removal of the provision might cause
USEPA to deem the Illinois rules less
stringent than the corresponding
federal rules
704.281(h) JCAR: Add “or not” after
“whether”
The usage is in the alternative sense,
not as an idiom, and the words “or not”
already appear after the first alternative
704.282(a)(1) JCAR: Remove the
comma before “other health
based standards
The comma separates the first and
second elements of a multi-element
series; the Board opted for an
alternative method for presenting the
four pre-conditions was selected, as
indicated in Table 2 above
704.286 “complete local
source water assessment
. . .”
JCAR: change the colon
after “are met” to a period
An alternative method for presenting
the four pre-conditions was selected, as
indicated in Table 2 above
730.103 “septic system” JCAR: Put “well” in
quotation marks
Doing so is inconsistent with the
removal of quotation marks from all
terms other than the immediate-defined
term in other definitions at the request
of JCAR staff
730.103 “underground
source of drinking water”
JCAR: change “which” to
“that” (three times)
An alternative method for presenting
the sub-paragraphs was selected, as
indicated in Table 2 above
730.105(e)(8) JCAR: Add “or not” after
“whether”
The usage is in the alternative sense,
not as an idiom, and the words “or not”
already appear after the first alternative
730.110(c)(1) JCAR: Remove the
comma before “other health
based standards
The comma separates the first and
second elements of a multi-element
series; the Board opted for an
alternative method for presenting the
four pre-conditions was selected, as
indicated in Table 2 above
738 Table of contents JCAR: Change “waste-
specific” to “waste
specific” in the heading of
Section 738.118
The words “waste-specific” are a
compound adjective that modifies
“prohibitions” in which the hyphen is
appropriate
738.118 heading JCAR: Change “waste-
specific” to “waste
specific” in the heading of
Section 738.118
The words “waste-specific” are a
compound adjective that modifies
“prohibitions” in which the hyphen is
appropriate

49
HISTORY OF RCRA SUBTITLE C AND UIC ADOPTION
ILLINOIS ENVIRONMENTAL PROTECTION AGENCY OR BOARD ACTION
EDITORIAL CONVENTIONS
It has previously been the practice of the Board to include a historical discussion in its
RCRA Subtitle C and UIC identical-in-substance rulemaking proposals. However, in the last
RCRA Subtitle C update docket, RCRA Subtitle C Update, USEPA Amendments (July 1, 1999,
through, December 31, 1999) (May 18, 2000), R00-13, the Board indicated that it would cease
this practice. Therefore, for a complete historical summary of the Board’s RCRA Subtitle C and
UIC rulemakings and programs, interested persons should refer back to the May 18, 2000
opinion and order in R00-13.
The historical summary contains all Board actions taken to adopt and maintain these
programs since their inception and until May 18, 2000. It includes a listing of all site-specific
rulemaking and adjusted standards proceedings filed that relate to these programs. It also lists all
USEPA program authorizations issued during that time frame. As necessary the Board will
continue to update the historical summary as a segment of the opinion in each RCRA Subtitle C
and UIC update docket, but those opinions will not repeat the information contained in the
opinion of May 18, 2000 in docket R00-13.
The following summarizes the history of the Illinois RCRA Subtitle C hazardous waste
and UIC programs since May 18, 2000:
History of RCRA Subtitle C and State Hazardous Waste Rules Adoption
The Board has adopted and amended the RCRA Subtitle C hazardous waste rules in the
following docket since May 18, 2000:
R00-13 RCRA Subtitle C Update, USEPA Regulations (January 1, 1999, through
June 30, 1999) (May 18, 2000), R00-13; published at 24 Ill. Reg.9443
(July 7, 2000), effective June 20, 2000.
R01-3 RCRA Subtitle C Update, USEPA Regulations (July 1, 1999, through
December 31, 1999) (December 7, 2000), R01-3.
History of UIC Rules Adoption
The Board has adopted and amended Underground Injection Control (UIC) regulations in
the following dockets since May 18, 2000:
R00-11 UIC Update, USEPA Regulations (July 1, 1999, through December 31,
1999) (December 7, 2000), R00-11. (This docket; consolidated with
docket R01-1.)

50
R01-1 UIC Update, USEPA Regulations (January 1, 2000, through June 30,
2000) (December 7, 2000), R01-1. (This docket; consolidated with docket
R00-11.)
ORDER
The complete text of the adopted amendments follows:
TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE G: WASTE DISPOSAL
CHAPTER I: POLLUTION CONTROL BOARD
SUBCHAPTER b: PERMITS
PART 702
RCRA AND UIC PERMIT PROGRAMS
SUBPART A: GENERAL PROVISIONS
Section
702.101 Purpose, Scope, and Applicability
702.102 Purpose and Scope (Repealed)
702.103 Confidentiality of Information Submitted to the Agency or Board
702.104 References
702.105 Rulemaking
702.106 Adoption of Agency Criteria
702.107 Permit Appeals and Review of Agency Determinations
702.108 Variances and Adjusted Standards
702.109 Enforcement Actions
702.110 Definitions
SUBPART B: PERMIT APPLICATIONS
Section
702.120 Permit Application
702.121 Who Applies
702.122 Completeness
702.123 Information Requirements
702.124 Recordkeeping
702.125 Continuation of Expiring Permits
702.126 Signatories to Permit Applications and Reports
SUBPART C: PERMIT CONDITIONS
Section
702.140 Conditions Applicable to all Permits
702.141 Duty to Comply
702.142 Duty to Reapply
702.143 Need to Halt or Reduce Activity Not a Defense

51
702.144 Duty to Mitigate
702.145 Proper Operation and Maintenance
702.146 Permit Actions
702.147 Property Rights
702.148 Duty to Provide Information
702.149 Inspection and Entry
702.150 Monitoring and Records
702.151 Signature Requirements
702.152 Reporting Requirements
702.160 Establishing Permit Conditions
702.161 Duration of Permits
702.162 Schedules of Compliance
702.163 Alternative Schedules of Compliance
702.164 Recording and Reporting
SUBPART D: ISSUED PERMITS
Section
702.181 Effect of a Permit
702.182 Transfer
702.183 Modification
702.184 Causes for Modification
702.185 Facility Siting
702.186 Revocation
702.187 Minor Modifications
AUTHORITY: Implementing Sections 7.2, 13, and 22.4 and authorized by Section 27 of the
Environmental Protection Act [415 ILCS 5/7.2, 13, 22.4, and 27].
SOURCE: Adopted in R81-32, 47 PCB 93, at 6 Ill. Reg. 12479, effective May 17, 1982;
amended in R82-19, at 53 PCB 131, 7 Ill. Reg. 14352, effective May 17, 1982; amended in R84-
9 at 9 Ill. Reg. 11926, effective July 24, 1985; amended in R85-23 at 10 Ill. Reg. 13274, effective
July 29, 1986; amended in R86-1 at 10 Ill. Reg. 14083, effective August 12, 1986; amended in
R86-28 at 11 Ill. Reg. 6131, effective March 24, 1987; amended in R87-5 at 11 Ill. Reg. 19376,
effective November 12, 1987; amended in R87-26 at 12 Ill. Reg. 2579, effective January 15,
1988; amended in R87-29 at 12 Ill. Reg. 6673, effective March 28, 1988; amended in R87-39 at
12 Ill. Reg. 13083, effective July 29, 1988; amended in R89-1 at 13 Ill. Reg. 18452, effective
November 13, 1989; amended in R89-2 at 14 Ill. Reg. 3089, effective February 20, 1990;
amended in R89-9 at 14 Ill. Reg. 6273, effective April 16, 1990; amended in R92-10 at 17 Ill.
Reg. 5769, effective March 26, 1993; amended in R93-16 at 18 Ill. Reg. 6918, effective April 26,
1994; amended in R94-5 at 18 Ill. Reg. 18284, effective December 20, 1994; amended in R95-6
at 19 Ill. Reg. 9913, effective June 27, 1995; amended in R95-20 at 20 Ill. Reg. 11210, effective
August 1, 1996; amended in R96-10/R97-3/R97-5 at 22 Ill. Reg. 532, effective December 16,
1997; amended in R99-15 at 23 Ill. Reg. 9359, effective July 26, 1999; amended in R00-11/R01-
1 at 24 Ill. Reg. ________, effective ______________________.

52
SUBPART A: GENERAL PROVISIONS
Section 702.110 Definitions
The following definitions apply to 35 Ill. Adm. Code 702, 703, 704, and 705. Terms not defined
in this Section have the meaning given by the appropriate Act. When a defined term appears in a
definition, the defined term is sometimes placed within quotation marks as to an aid to readers.
When a definition applies primarily to one or more programs, those programs appear in
parentheses after the defined terms.
“Act” or “Environmental Protection Act” means the Environmental Protection
Act [415 ILCS 5].
“Administrator” means the Administrator of the United States Environmental
Protection Agency or an authorized representative.
“Agency” means the Illinois Environmental Protection Agency.
“Application” means the Agency forms for applying for a permit. For RCRA,
application also includes the information required by the Agency under 35 Ill.
Adm. Code 703.182 through 703.212 (contents of Part B of the RCRA
application).
“Appropriate act and regulations” means the Resource Conservation and
Recovery Act (RCRA), the Safe Drinking Water Act (SDWA), or the
“Environmental Protection Act”, whichever is applicable, and applicable
regulations promulgated under those statutes.
“Approved program or approved state” means a state or interstate program that
has been approved or authorized by USEPA under 40 CFR 271 (1996) (RCRA) or
Section 1422 of the SDWA (UIC).
“Aquifer” (RCRA and UIC) means a geological geologic “formation”, group of
formations, or part of a formation that is capable of yielding a significant amount
of water to a well or spring.
“Area of review” (UIC) means the area surrounding an injection well described
according to the criteria set forth in 35 Ill. Adm. Code 730.106, or in the case of
an area permit, the project area plus a circumscribing area the width of that which
is either 402 meters (1/4 one-quarter of a mile) or a number calculated according
to the criteria set forth in 35 Ill. Adm. Code 730.106.
“Board” means the Illinois Pollution Control Board.

53
“Cesspool” means a drywell that receives untreated sanitary waste containing
human excreta and which sometimes has an open bottom or perforated sides.
“Closure” (RCRA) means the act of securing a “Hazardous Waste Management
Facility” waste management facility pursuant to the requirements of 35 Ill. Adm.
Code 724.
“Component” (RCRA) means any constituent part of a unit or any group of
constituent parts of a unit that are assembled to perform a specific function (e.g., a
pump seal, pump, kiln liner, or kiln thermocouple).
“Contaminant” (UIC) means any physical, chemical, biological, or radiological
substance or matter in water.
“Corrective action management unit” or “CAMU” means an area within a facility
that is designated by the Agency under Subpart S of 35 Ill. Adm. Code
724.Subpart S for the purpose of implementing corrective action requirements
under 35 Ill. Adm. Code 724.201 and RCRA section 3008(h). A CAMU shall
must only be used for the management of remediation wastes pursuant to
implementing such corrective action requirements at the facility.
BOARD NOTE: USEPA must also designate a CAMU until it grants this
authority to the Agency. See the note following 35 Ill. Adm. Code 724.652.
“CWA” means the Clean Water Act (formerly referred to as the Federal Water
Pollution Control Act or Federal Water Pollution Control Act Amendments of
1972), P.L. 92-500, as amended by P.L. 95-217 and P.L. 95-576; 33 USC 1251 et
seq. (1996).
“Date of approval by USEPA of the Illinois UIC program” means March 3, 1984.
“Director” means the Director of the Illinois Environmental Protection Agency or
the Director’s designee.
“Disposal” (RCRA) means the discharge, deposit, injection, dumping, spilling,
leaking, or placing of any “hazardous waste” into or on any land or water so that
such hazardous waste or any constituent of the waste may enter the environment
or be emitted into the air or discharged into any waters, including groundwater.
“Disposal facility” (RCRA) means a facility or part of a facility at which
“hazardous waste” is intentionally placed into or on the land or water, and at
which hazardous waste will remain after closure. The term “disposal facility”
does not include a corrective action management unit into which remediation
wastes are placed.
“Draft permit” means a document prepared under 35 Ill. Adm. Code 705.141

54
indicating the Agency’s tentative decision to issue, deny, modify, terminate, or
reissue a “permit”. A notice of intent to deny a permit, as discussed in 35 Ill.
Adm. Code 705.141, is a type of “draft permit”. A denial of a request for
modification, as discussed in 35 Ill. Adm. Code 705.128, is not a “draft permit”.
A “proposed permit” is not a “draft permit”.
“Drywell” means a well, other than an improved sinkhole or subsurface fluid
distribution system, that is completed above the water table so that its bottom and
sides are typically dry, except when receiving fluids.
“Drilling mud” (UIC) means a heavy suspension used in drilling an “injection
well”, introduced down the drill pipe and through the drill bit.
“Elementary neutralization unit” means a device which:
Is used for neutralizing wastes that are hazardous wastes only because they
exhibit the corrosivity characteristics defined in 35 Ill. Adm. Code
721.122, or are listed in Subpart D of 35 Ill. Adm. Code 721.Subpart D
only for this reason; and
Meets the definition of tank, tank system, container, transport vehicle, or
vessel in 35 Ill. Adm. Code 720.110.
“Emergency permit” means a RCRA or UIC “permit” issued in accordance with
35 Ill. Adm. Code 703.221 or 704.163, respectively.
“Environmental Protection Agency” or (“EPA” or “USEPA”) means the United
States Environmental Protection Agency.
“Exempted aquifer” (UIC) means an “aquifer” or its portion that meets the criteria
in the definition of “underground source of drinking water” but which has been
exempted according to the procedures in 35 Ill. Adm. Code 702.105, 704.104, and
704.123(b).
“Existing hazardous waste management (HWM) facility” or “existing facility”
means a facility that was in operation or for which construction commenced on or
before November 19, 1980. A facility has commenced construction if:
The owner or operator has obtained the federal, State, and local approvals
or permits necessary to begin physical construction; and
Either:
A continuous on-site, physical construction program has begun; or

55
The owner or operator has entered into contractual obligations for
physical construction of the facility that cannot be canceled or
modified without substantial loss and which are to be completed
within a reasonable time.
“Existing injection well” (UIC) means an “injection well” other than a “new
injection well”.
“Facility mailing list” means the mailing list for a facility maintained by the
Agency in accordance with 35 Ill. Adm. Code 705.163(a).
“Facility or activity” means any “HWM facility”, UIC “injection well”, or any
other facility or activity (including land or appurtenances thereto) that is subject to
regulations under the Illinois RCRA or UIC program.
“Facility mailing list” (RCRA) means the mailing list for a facility maintained by
the Agency in accordance with 35 Ill. Adm. Code 705.163.
“Federal, state State, and local approvals or permits necessary to begin physical
construction” means permits and approvals required under federal, State, or local
hazardous waste control statutes, regulations, or ordinances. (See 35 Ill. Adm.
Code 700.102.)
“Final authorization” (RCRA) means approval by USEPA of the Illinois
Hazardous Waste Management Program that has met the requirements of Section
3006(b) of RCRA and the applicable requirements of 40 CFR 271, Subpart A
(1996). USEPA granted initial final authorization on January 31, 1986.
“Fluid” (UIC) means any material or substance that flows or moves, whether in a
semisolid, liquid, sludge, gas, or any other form or state.
“Formation” (UIC) means a body of rock characterized by a degree of lithologic
homogeneity that is prevailingly, but not necessarily, tabular and is mappable on
the earth’s surface or traceable in the subsurface.
“Formation fluid” (UIC) means “fluid” present in a “formation” under natural
conditions, as opposed to introduced fluids, such as “drilling mud”.
“Functionally equivalent component” (RCRA) means a component that performs
the same function or measurement and which meets or exceeds the performance
specifications of another component.
“Generator” (RCRA) means any person, by site location, whose act or process
produces “hazardous waste” identified or listed in 35 Ill. Adm. Code 721.

56
“Groundwater” (RCRA and UIC) means a water below the land surface in a zone
of saturation.
“Hazardous waste” (RCRA and UIC) means a hazardous waste as defined in 35
Ill. Adm. Code 721.103.
“Hazardous waste management facility” or (“HWM facility”) means all
contiguous land and structures, other appurtenances, and improvements on the
land, used for treating, storing, or disposing of “hazardous waste”. A facility may
consist of several “treatment”, “storage”, or “disposal” operational units (for
example, one or more landfills, surface impoundments, or combinations of them).
“HWM facility” (RCRA) means “Hazardous Waste Management waste
management facility”.
“Improved sinkhole” means a naturally occurring karst depression or other natural
crevice that is found in volcanic terrain and other geologic settings that have been
modified by man for the purpose of directing and emplacing fluids into the
subsurface.
“Injection well” (RCRA and UIC) means a “well” into which “fluids” are being
injected.
“Injection zone” (UIC) means a geological geologic “formation”, group of
formations, or part of a formation receiving fluids through a “well”.
“In operation” (RCRA) means a facility that is treating, storing, or disposing of
“hazardous waste”.
“Interim authorization” (RCRA) means approval by USEPA of the Illinois
Hazardous Waste Management program that has met the requirements of Section
3006(g)(2) of RCRA and applicable requirements of 40 CFR 271 (1996). This
happened on May 17, 1982.
“Interstate agency” means an agency of two or more states established by or under
an agreement or compact approved by the Congress, or any other agency of two or
more states having substantial powers or duties pertaining to the control of
pollution as determined and approved by the Administrator under the “appropriate
Act and regulations”.
“Major facility” means any RCRA or UIC “facility or activity” classified as such
by the Regional Administrator or the Agency.
“Manifest” (RCRA and UIC) means the shipping document originated and signed
by the “generator” that contains the information required by Subpart B of 35 Ill.

57
Adm. Code 722.Subpart B.
“National Pollutant Discharge Elimination System” means the program for
issuing, modifying, revoking and reissuing, terminating, monitoring, and
enforcing permits and imposing and enforcing pretreatment requirements under
Section 12(f) of the Environmental Protection Act and Subpart A of 35 Ill. Adm.
Code 309.Subpart A and 35 Ill. Adm. Code 310. The term includes an “approved
program”.
“New HWM facility” (RCRA) means a “Hazardous Waste Management
hazardous waste management facility” that began operation or for which
construction commenced after November 19, 1980.
“New injection well” (UIC) means a “well” that began injection after March 3,
1984, the date of USEPA approval of the UIC program for the State of Illinois.
BOARD NOTE: See 40 CFR 147.700 (1998) and 49 Fed. Reg. 3991 (Feb. 1,
1984).
“Off-site” (RCRA) means any site that is not “on-site”.
“On-site” (RCRA) means on the same or geographically contiguous property that
may be divided by public or private right(s)-of-way rights-of-way, provided the
entrance and exit between the properties is at a cross-roads intersection, and
access is by crossing as opposed to going along, the right(s)-of-way rights-of-way.
Non-contiguous properties owned by the same person, but connected by a right-
of-way that the person controls and to which the public does not have access, is
also considered on-site property.
“Owner or operator” means the owner or operator of any “facility or activity”
subject to regulation under the RCRA or UIC programs program.
“Permit” means an authorization, license, or equivalent control document issued
to implement the requirements of this Part and 35 Ill. Adm. Code 703, 704, and
705.
“Permit” includes RCRA “permit by rule” (35 Ill. Adm. Code 703.141), UIC area
permit (35 Ill. Adm. Code 704.162), and RCRA or UIC “Emergency Permit” (35
Ill. Adm. Code 703.221 and 704.163). “Permit” does not include RCRA interim
status (35 Ill. Adm. Code 703.153 through 703.157), UIC authorization by rule
(Subpart C of 35 Ill. Adm. Code 704.Subpart C), or any permit that has not yet
been the subject of final Agency action, such as a “Draft Permit” or a “Proposed
Permit” draft permit or a proposed permit.
“Person” means any individual, partnership, co-partnership, firm, company,
corporation, association, joint stock company, trust, estate, political subdivision,

58
state agency, or any other legal entity, or their legal representative, agency, or
assigns.
“Physical construction” (RCRA) means excavation, movement of earth, erection
of forms or structures, or similar activity to prepare an “HWM facility” to accept
“hazardous waste”.
“Plugging” (UIC) means the act or process of stopping the flow of water, oil, or
gas into or out of a formation through a borehole or well penetrating that
formation.
“Point of injection” means the last accessible sampling point prior to waste fluids
being released into the subsurface environment through a Class V injection well.
For example, the point of injection of a Class V septic system might be the
distribution box--the last accessible sampling point before the waste fluids drain
into the underlying soils. For a dry well, it is likely to be the well bore itself.
“POTW” means “publicly owned treatment works”.
“Project” (UIC) means a group of wells in a single operation.
“Publicly owned treatment works” or (“POTW”) is as defined in 35 Ill. Adm.
Code 310.
“Radioactive waste” (UIC) means any waste that contains radioactive material in
concentrations that exceed those listed in 10 CFR 20, Appendix B, Table II,
Column 2, incorporated by reference in 35 Ill. Adm. Code 720.111.
“RCRA” means the Solid Waste Disposal Act as amended by the Resource
Conservation and Recovery Act of 1976 (P.L. 94-580, as amended by P.L. 95-
609, P.L. 96-510, 42 USC 6901 et seq. (1996)). For the purposes of regulation
under 35 Ill. Adm. Code 700 through 705, 720 through 728, 733, and 739,
“RCRA” refers only to RCRA Subtitle C. This does not include the RCRA
Subtitle D (municipal solid waste landfill) regulations, found in 35 Ill. Adm. Code
810 through 815, and the RCRA Subtitle I (underground storage tank) regulations
found in 35 Ill. Adm. Code 731 and 732.
“RCRA permit” means a permit required under Section 21(f) of the
Environmental Protection Act.
“Regional Administrator” means the Regional Administrator for the USEPA
Region in which the facility is located or the Regional Administrator’s designee.
“Remedial Action Plan” or “RAP” means a special form of RCRA permit that a
facility owner or operator may obtain pursuant to Subpart H of 35 Ill. Adm. Code

59
703.Subpart H, instead of a RCRA permit issued under this Part and 35 Ill. Adm.
Code 703, to authorize the treatment, storage, or disposal of hazardous remediation
waste (as defined in 35 Ill. Adm. Code 720.110) at a remediation waste management
site.
“Sanitary waste” means liquid or solid wastes originating solely from humans and
human activities, such as wastes collected from toilets, showers, wash basins,
sinks used for cleaning domestic areas, sinks used for food preparation, clothes
washing operations, and sinks or washing machines where food and beverage
serving dishes, glasses, and utensils are cleaned. Sources of these wastes may
include single or multiple residences, hotels and motels, restaurants, bunkhouses,
schools, ranger stations, crew quarters, guard stations, campgrounds, picnic
grounds, day-use recreation areas, other commercial facilities, and industrial
facilities, provided the waste is not mixed with industrial waste.
“Schedule of compliance” means a schedule of remedial measures included in a
“permit”, including an enforceable sequence of interim requirements (for
example, actions, operations, or milestone events) leading to compliance with the
“appropriate Act and regulations”.
“SDWA” means the Safe Drinking Water Act (P.L. 93-523, as amended, 42 USC
300f et seq. (1996)).
“Septic system” means a well, as defined in this Section, that is used to emplace
sanitary waste below the surface and which is typically comprised of a septic tank
and subsurface fluid distribution system or disposal system.
“Site” means the land or water area where any “facility or activity” is physically
located or conducted, including adjacent land used in connection with the facility
or activity.
“SIC code” means codes pursuant to the Standard Industrial Classification Manual
incorporated by reference in 35 Ill. Adm. Code 720.111.
“State” means the State of Illinois.
“State Director” means the Director of the Illinois Environmental Protection
Agency.
“State/USEPA agreement” means an agreement between the Regional
Administrator and the State that coordinates USEPA and State activities,
responsibilities, and programs, including those under the RCRA and SDWA.
“Storage” (RCRA) means the holding of “hazardous waste” for a temporary
period, at the end of which the hazardous waste is treated, disposed of, or stored

60
elsewhere.
“Stratum (plural strata)” (UIC) means a single sedimentary bed or layer,
regardless of thickness, that consists of generally the same kind of rock material.
“Subsurface fluid distribution system” means an assemblage of perforated pipes,
drain tiles, or other similar mechanisms intended to distribute fluids below the
surface of the ground.
“Total dissolved solids” (UIC) means the total dissolved (filterable) solids as
determined by use of the method specified in 40 CFR 136, incorporated by
reference in 35 Ill. Adm. Code 720.111.
“Transfer facility” means any transportation related facility, including loading
docks, parking areas, storage areas, and other similar areas where shipments of
hazardous wastes are held during the normal course of transportation.
“Transferee” (UIC) means the owner or operator receiving ownership or
operational control of the well.
“Transferor” (UIC) means the owner or operator transferring ownership or
operational control of the well.
“Transporter” (RCRA) means a person engaged in the off-site transportation of
“hazardous waste” by air, rail, highway, or water.
“Treatment” (RCRA) means any method, technique, process, including
neutralization, designed to change the physical, chemical, or biological character
or composition of any “hazardous waste” so as to neutralize such wastes, or so as
to recover energy or material resources from the waste, or so as to render such
wastes non-hazardous or less hazardous; safer to transport, store, or dispose of; or
amenable for recovery, amenable for storage, or reduced in volume.
“UIC” means the Underground Injection Control program.
“Underground injection” (UIC) means a “well injection”.
“Underground source of drinking water” (“USDW”) (RCRA and UIC) means an
“aquifer” or its portion that is not an “exempted aquifer” and of which either of
the following is true:
It supplies any public water system; or
It contains a sufficient quantity of groundwater to supply a public water
system; and

61
It currently supplies drinking water for human consumption; or
It contains less than 10,000 mg/1 total dissolved solids.
“USDW” (RCRA and UIC) means an “underground source of drinking water”.
“Wastewater treatment unit” means a device which that:
Is part of a wastewater treatment facility that is subject to regulation under
Subpart A of 35 Ill. Adm. Code 309.Subpart A or 35 Ill. Adm. Code 310;
and
Receives and treats or stores an influent wastewater that is a hazardous
waste as defined in 35 Ill. Adm. Code 721.103, or generates and
accumulates a wastewater treatment sludge that is a hazardous waste as
defined in 35 Ill. Adm. Code 721.103, or treats or stores a wastewater
treatment sludge that is a hazardous waste as defined in 35 Ill. Adm. Code
721.103; and
Meets the definition of tank or tank system in 35 Ill. Adm. Code 720.110.
“Well” (UIC) means a bored, drilled, or driven shaft, or a dug hole, whose depth
is greater than the largest surface dimension; a dug hole whose depth is greater
than the largest surface dimension; or an improved sinkhole; or, a subsurface fluid
distribution system.
Well injection means the subsurface emplacement of fluids through a well.
“Well injection” (UIC) means the subsurface emplacement of “fluids” through a
bored, drilled, or driven “well”; or through a dug well, where the depth of the dug
well is greater than the largest surface dimension.
BOARD NOTE: Derived from 40 CFR 144.3 (19981999), as amended at 64 Fed. Reg. 68565
(Dec. 7, 1999), and 270.2 (19981999), as amended at 63 Fed. Reg. 65941 (Nov. 30, 1998).
(Source: Amended at 24 Ill. Reg. ________, effective ______________________)
TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE G: WASTE DISPOSAL
CHAPTER I: POLLUTION CONTROL BOARD
SUBCHAPTER b: PERMITS
PART 704

62
UIC PERMIT PROGRAM
SUBPART A: GENERAL PROVISIONS
Section
704.101 Content
704.102 Scope of the Permit or Rule Requirement
704.103 Identification of Aquifers
704.104 Exempted Aquifers
704.105 Specific Inclusions and Exclusions
704.106 Classification of Injection Wells
704.107 Definitions
SUBPART B: PROHIBITIONS
Section
704.121 Prohibition of Unauthorized Injection
704.122 Prohibition of Movement of Fluid into USDW
704.123 Identification of USDW and Exempted Aquifers
704.124 Prohibition of Class IV Wells
SUBPART C: AUTHORIZATION OF UNDERGROUND INJECTION BY
RULE
Section
704.141 Existing Class I and III Wells
704.142 Prohibitions on Injection into Wells Authorized by Rule
704.143 Expiration of Authorization
704.144 Requirements
704.145 Existing Class IV Wells
704.146 Class V Wells
704.147 Requiring a Permit
704.148 Inventory Requirements
704.149 Requiring other Information
704.150 Requirements for Class I and III Wells authorized by Rule
704.151 RCRA Interim Status for Class I Wells
SUBPART D: APPLICATION FOR PERMIT
Section
704.161 Application for Permit; Authorization by Permit
704.162 Area Permits
704.163 Emergency Permits
704.164 Signatories to Permit Applications
SUBPART E: PERMIT CONDITIONS
Section
704.181 Additional Conditions
704.182 Establishing UIC Permit Conditions

63
704.183 Construction Requirements
704.184 Corrective Action
704.185 Operation Requirements
704.186 Hazardous Waste Requirements
704.187 Monitoring and Reporting
704.188 Plugging and Abandonment
704.189 Financial Responsibility
704.190 Mechanical Integrity
704.191 Additional Conditions
704.192 Waiver of Requirements by Agency
704.193 Corrective Action
704.194 Maintenance and Submission of Records
SUBPART F: REQUIREMENTS FOR WELLS INJECTING HAZARDOUS
WASTE
Section
704.201 Applicability
704.202 Authorization
704.203 Requirements
SUBPART G: FINANCIAL RESPONSIBILITY FOR CLASS I HAZARDOUS
WASTE INJECTION WELLS
Section
704.210 Applicability
704.211 Definitions
704.212 Cost Estimate for Plugging and Abandonment
704.213 Financial Assurance for Plugging and Abandonment
704.214 Trust Fund
704.215 Surety Bond Guaranteeing Payment
704.216 Surety Bond Guaranteeing Performance
704.217 Letter of Credit
704.218 Plugging and Abandonment Insurance
704.219 Financial Test and Corporate Guarantee
704.220 Multiple Financial Mechanisms
704.221 Financial Mechanism for Multiple Facilities
704.222 Release of the Owner or Operator
704.230 Incapacity
704.240 Wording of the Instruments
SUBPART H: ISSUED PERMITS
Section
704.260 Transfer
704.261 Modification
704.262 Causes for Modification
704.263 Well Siting

64
704.264 Minor Modifications
SUBPART I: REQUIREMENTS FOR CLASS V INJECTION WELLS
Section
704.279 General
704.280 Definition of a Class V Injection Well
704.281 Examples of Class V Injection Wells
704.282 Protection of Underground Sources of Drinking Water
704.283 Notification of a Class V Injection Well
704.284 Permit Requirements
704.285 Applicability of the Additional Requirements
704.286 Definitions
704.287 Location in a Groundwater Protection Area or Another Sensitive Area
704.288 Additional Requirements
704.289 Closure of a Class V Injection Well
AUTHORITY: Implementing Sections 7.2, 13, and 22.4 and authorized by Section 27 of the
Environmental Protection Act [415 ILCS 5/7.2, 13, 22.4, and 27].
SOURCE: Adopted in R81-32, at 47 PCB 95, at 6 Ill. Reg. 12479, effective March 3, 1984;
amended in R82-19, at 7 Ill. Reg. 14402, effective March 3, 1984; amended in R83-39, at 55
PCB 319, at 7 Ill. Reg. 17338, effective December 19, 1983; amended in R85-23 at 10 Ill. Reg.
13290, effective July 29, 1986; amended in R87-29 at 12 Ill. Reg. 6687, effective March 28,
1988; amended in R88-2 at 12 Ill. Reg. 13700, effective August 16, 1988; amended in R88-17 at
13 Ill. Reg. 478, effective December 30, 1988; amended in R89-2 at 14 Ill. Reg. 3116, effective
February 20, 1990; amended in R94-17 at 18 Ill. Reg. 17641, effective November 23, 1994;
amended in R94-5 at 18 Ill. Reg. 18351, effective December 20, 1994; amended in R00-11/R01-
1 at 24 Ill. Reg. ________, effective ______________________.
SUBPART A: GENERAL PROVISIONS
Section 704.102 Scope of the Permit or Rule Requirement
Although five classes of wells are set forth in Section 704.106, the UIC (Underground Injection
Control) permit program described in 35 Ill. Adm. Code 702, 704, 705, and 730 regulates
underground injection for only four classes of wells (see definition of “well injection,” 35 Ill.
Adm. Code 702.110). Class II wells (Section 704.106(b)) are not subject to the requirements
found in 35 Ill. Adm. Code 702, 704, 705, and 730. The UIC permit program for Class II wells
will be adopted is regulated by the Illinois Department of Natural Resources, Office of Mines and
Minerals, Oil and Gas Division, pursuant to the Illinois Oil and Gas Act [225 ILCS 725] (see 62
Ill. Adm. Code 240). Section 1425 of the SDWA (Safe Drinking Water Act, 42 U.S.C. 300f).
All owners or operators of Class I, Class III, Class IV, or Class V injection wells must be
authorized either by permit or rule. In carrying out the mandate of the SDWA, this Part provides
that no injection shall must be authorized by permit or rule if it results in movement of fluid

65
containing any contaminant into underground sources of drinking water (USDWs)(Section
704.122) if the presence of that contaminant may cause a violation of any primary drinking water
regulation under 40 CFR 142 or may adversely affect the health of persons. (Section 704.122).
Existing Class IV wells that inject hazardous waste directly into an underground source of
drinking water are to be eliminated over a period of six months and new such Class IV wells are
to be prohibited (Section 704.124). Class V wells will be inventoried and assessed, and
regulatory action will be established at a later date. In the meantime, if remedial action appears
necessary, an individual permit may be required (704.Subpart C of this Part) or the Agency must
require remedial action or closure by order (Section 704.122(c)).
BOARD NOTE: Derived from 40 CFR 144.1(g) preamble (19931999).
(Source: Amended at 24 Ill. Reg. ________, effective ______________________)
Section 704.105 Specific Inclusions and Exclusions
a) The following wells are included among those types of injection activities that are
covered by the UIC regulations. (This list is not intended to be exclusive but is
for clarification only.)
1) Any injection well located on a drilling platform inside territorial waters of
the State of Illinois;
2) Any dug hole or well that is deeper than its largest surface dimension,
where the principal function of the hole is emplacement of fluids;
3) Any septic tank or cesspool well used by generators of hazardous waste, or
by owners or operators of hazardous waste management facilities, to
dispose of fluids containing hazardous waste. This includes the disposal
of hazardous waste into what would otherwise be septic systems and
cesspools, regardless of their capacity;
4) Any septic tank, cesspool, or other well used by a multiple dwelling,
community, or regional system for the injection of wastes.
b) The following are not covered by these regulations this Part:
1) Injection wells located on a drilling platform or other site that is beyond
the territorial waters of the State of Illinois;
2) Individual or single family residential waste disposal systems such as
domestic cesspools or septic systems;
3) Nonresidential cesspools, septic systems, or similar waste disposal systems
if such systems are used solely for the disposal of sanitary waste, and have

66
the capacity to serve fewer than 20 persons a day;
4) Injection wells used for injection of hydro carbons hydrocarbons that are
of pipeline quality and are gases at standard temperature and pressure for
the purpose of storage;
5) Any dug hole, drilled hole, or bored shaft that is not used for the
subsurface emplacement of fluids underground;
6) Class II wells.
c) The prohibition applicable to Class IV wells under Section 704.124 does not
apply to injections of hazardous wastes into aquifers or portions thereof that have
been exempted pursuant to 35 Ill. Adm. Code 730.104.
BOARD NOTE: Derived from 40 CFR 144.1(g)(1) through (g)(3) (19931999), as amended at 64
Fed. Reg. 68565 (December 7, 1999).
(Source: Amended at 24 Ill. Reg. ________, effective ______________________)
Section 704.106 Classification of Injection Wells
Injection wells are classified as follows:
a) Class I
1) Wells used by generators of hazardous wastes or owners or operators of
hazardous waste management facilities to inject hazardous waste beneath
the lowermost formation containing, within 402 meters (one-quarter mile)
of the well bore, and an underground source of drinking water.
2) Other industrial and municipal disposal wells which inject fluids beneath
the lowermost formation containing, within 402 meters (one quarter one-
quarter mile) of the well bore, an underground source of drinking water.
3) Radioactive waste disposal wells that inject fluids below the lowermost
formation containing an underground source of drinking water within one-
quarter mile of the well bore.
b) Class II. Wells which inject fluids:
1) Which are brought to the surface in connection with natural gas storage
operations, or conventional oil or natural gas production and may be
commingled with waste waters from gas plants which are an integral part
of production operations, unless those waters are classified as a hazardous

67
waste at the time of injection;
2) For enhanced recovery of oil or natural gas; and
3) For storage of hydrocarbons which are liquid at standard temperature and
pressure.
c) Class III. Wells which inject fluids for extraction of mineral minerals, including:
1) Mining of sulfur by the Frasch process;
2) In situ production of uranium or other metals; this category includes only
in situ production from ore bodies which have not been conventionally
mined. Solution mining of conventional mines such as stopes leaching is
included in Class V; and
3) Solution mining of salts or potash.
d) Class IV.
1) Wells used by generators of hazardous wastes or of radioactive wastes, by
owners or and operators of hazardous waste management facilities or by
owners or and operators of radioactive waste disposal sites to dispose of
hazardous wastes or radioactive wastes into a formation which within 402
meters (one quarter one-quarter mile) of the well contains an underground
source of drinking water.
2) Wells used by generators of hazardous waste or of radioactive waste, by
owners or and operators of hazardous waste management facilities, or by
owners or and operators of radioactive waste disposal sites to dispose of
hazardous waste or radioactive waste above a formation which within 402
meters (one-quarter mile) of the well contains an underground source of
drinking water.
3) Wells used by generators of hazardous waste or owners or and operators of
hazardous waste management facilities to dispose of hazardous waste,
which cannot be classifed under subsections (a)(1) or (d)(1) and (d)(2)
(e.g., wells used to dispose of hazardous waste into or above a formation
which contains an aquifer which has been exempted pursuant to 35 Ill.
Adm. Code 730.104).
e) Class V. Injection wells not included in Classes I, II, III, or IV.
(Board Note: See BOARD NOTE: Derived from 40 CFR 144.6 (19871999).)

68
(Source: Amended at 24 Ill. Reg. ________, effective ______________________)
Section 704.107 Definitions
The definitions of 35 Ill. Adm. Code 702 apply to Part 704. Specific types of Class V injection
wells are described in Section 704.281.
(Source: Amended at 24 Ill. Reg. ________, effective ______________________)
SUBPART C: AUTHORIZATION OF UNDERGROUND INJECTION BY
RULE
Section 704.145 Existing Class IV Wells
a) Injection into Class IV wells as defined in Section 704.106(d)(1) is not authorized.
The owner or operator of any such well must comply with Sections 704.124 and
704.203.
b) Closure.
1) Prior to abandoning any Class IV well, the owner or operator shall must
plug or otherwise close the well in a manner acceptable to the Agency.
2) By September 27, 1986, the owner and operator of any Class IV well was
to have submitted to the Agency a plan for plugging or otherwise closing
and abandoning the well.
3) The owner or operator of a Class IV well shall must notify the Agency of
intent to abandon the well at least 30 days prior to abandonment.
c) Notwithstanding the requirements of subsections (a) and (b) of this Section,
injection wells used to inject contaminated groundwater that has been treated and
which is being injected into the same formation from which it was drawn are
authorized by rule for the life of the well if such subsurface emplacement of fluids
is approved by USEPA, pursuant to provisions for cleanup of releases under the
Comprehensive Environmental Response, Compensation, and Liability Act of
1980 (CERCLA), 42 USC 9601-9675, or pursuant to requirements and provisions
under the Resource Conservation and Recovery Act (RCRA), 42 USC 6901-
6992k, or the Agency, pursuant to Section 39 of the Act.
BOARD NOTE: Derived from 40 CFR 144.23 (19931999), as amended at 64 Fed. Reg. 68566
(December 7, 1999).
(Source: Amended at 24 Ill. Reg. ________, effective ______________________)

69
Section 704.146 Class V Wells
a) Injection into Class V wells is authorized by rule until requirements under future
regulations become applicable, subject to the conditions set forth in Section
704.284.
b) Duration of well authorization by rule. Well authorization under this Section
expires upon the effective date of a permit issued pursuant to any of Sections
704.147, 704.161, 704.162, or 704.163.
c) Prohibition of injection. An owner or operator of a well that is authorized by rule
pursuant to this Section is prohibited from injecting into the well:
1) Upon the effective date of an applicable permit denial;
2) Upon a failure to submit a permit application in a timely manner pursuant
to Section 704.147 or 704.161;
3) Upon a failure to submit inventory information in a timely manner
pursuant to Section 704.148; or
4) Upon a failure to comply with a request for information in a timely manner
pursuant to Section 704.149.
BOARD NOTE: Derived from 40 CFR 144.24 (19931999), as amended at 58 64 Fed. Reg.
63896 68566 (Dec. 3, 1993 7, 1999).
(Source: Amended at 24 Ill. Reg. ________, effective ______________________)
Section 704.148 Inventory Requirements
The owner or operator of an injection well that is authorized by rule under this Subpart shall
must submit inventory information to the Agency. Such an owner or operator is prohibited from
injecting into the well upon failure to submit inventory information for the well to the Agency
within the time specified in subsection (d) or (e) below of this Section.
a) Contents. As part of the inventory, the owner or operator shall must submit at
least the following information:
1) Facility name and location;
2) Name and address of legal contact;
3) Ownership of facility;

70
4) Nature and type of injection wells; and
5) Operating status of injection wells.
BOARD NOTE: This information is requested on national form “Inventory of
Injection Wells,” OMB No. 158-R0170.
b) Additional contents. The owner or operator of a well listed in subsection (b)(1)
below of this Section shall must provide the information listed in subsection
(b)(2) below of this Section.
1) This Section applies to the following wells:
A) Corresponding 40 CFR 144.26(b)(1)(i) pertains to Class II wells,
which are regulated by the Department of Natural Resources
pursuant to the Illinois Oil and Gas Act [225 ILCS 725] (see 62 Ill.
Adm. Code 240). This statement maintains structural consistency
with the corresponding federal provisions;
AB) Class IV wells;
BC) The following Class V wells:
i) Sand or other backfill wells, 35 Ill. Adm. Code
730.105(e)(8);
ii) Radioactive waste disposal wells that are not Class I wells,
35 Ill. Adm. Code 730.105(e)(11);
iii) Geothermal energy recovery wells, 35 Ill. Adm. Code
730.105(e)(12);
iv) Brine return flow wells, 35 Ill. Adm. Code 730.105(e)(14);
v) Wells used in experimental technologies, 35 Ill. Adm. Code
730.105(e)(15);
vi) Municipal and industrial disposal wells other than Class I;
and
vii) Any other Class V wells at the discretion of the Agency.
2) The owner or operator of a well listed in subsection (b)(1) above of this

71
Section shall must provide a listing of all wells owned or operated setting
forth the following information for each well. (A single description of
wells at a single facility with substantially the same characteristics is
acceptable.).
A) Corresponding 40 CFR 144.26(b)(2)(i) pertains to Class II wells,
which are regulated by the Department of Natural Resources
pursuant to the Illinois Oil and Gas Act [225 ILCS 725] (see 62 Ill.
Adm. Code 240). This statement maintains structural consistency
with the corresponding federal provisions;
AB) Location of each well or project given by Township, Range,
Section, and Quarter-Section;
BC) Date of completion of each well;
CD) Identification and depth of the formation(s) into which each well is
injecting;
DE) Total depth of each well;
EF) Casing and cementing record, tubing size, and depth of packer;
FG) Nature of the injected fluids;
GH) Average and maximum injection pressure at the wellhead;
HI) Average and maximum injection rate; and
IJ) Date of the last mechanical integrity tests, if any.
c) This subsection corresponds with 40 CFR 144.26(c), a provision relating to U.S.
EPA USEPA notification to facilities upon authorization of the state’s program.
This statement maintains structural consistency with U.S. EPA USEPA rules.
d) Deadlines. Except as provided in subsection (e) below: of this Section, the owner
or operator of an injection well must submit inventory information no later than
March 3, 1985. The Agency need not require inventory information from any
facility with RCRA interim status under 35 Ill. Adm. Code 703.
1) The owner or operator of an injection well shall must submit inventory
information no later than March 3, 1985. The Agency need not require
inventory information from any facility with RCRA interim status under
35 Ill. Adm. Code 703.

72
2) The information need not be submitted if a complete application is
submitted within one year of the effective date of the U.S. EPA UIC
program. The owner or operator of a Class IV well shall submit inventory
information no later than 60 days after the effective date of the U.S. EPA
UIC program.
e) Deadlines for Class V Wells.
1) The owner or operator of a Class V well in which injection took place
within one year after the date of approval by U.S. EPA USEPA of the
Illinois UIC program, and who failed to submit inventory information for
the well within the time specified in subsection (d) above of this Section
may resume injection 90 days after submittal of the inventory information
to the Agency, unless the owner or operator receives notice from the
Agency that injection may not resume or that it may resume sooner.
2) The owner or operator of a Class V well in which injection started later
than March 3, 1985, shall must submit inventory information prior to May
2, 1995.
3) The owner or operator of a Class V well in which injection started after
May 2, 1994 shall must submit inventory information prior to starting
injection.
4) The owner or operator of a Class V injection well prohibited from
injecting for failure to submit inventory information for the well within the
time specified in subsection (e)(2) or (e)(3) above of this Section may
resume injection 90 days after submittal of the inventory information to
the Agency, unless the owner or operator receives notice from the Agency
that injection may not resume or that it may resume sooner.
BOARD NOTE: Wells that were in existence as of March 3, 1984, were
required to submit inventory information by March 3, 1985. Since all
wells other than Class V wells are now either prohibited or required to file
permit applications, the inventory requirement will apply only to new
Class V wells.
BOARD NOTE: Derived from 40 CFR 144.26 (19931999), as amended at 58 64 Fed. Reg.
63896 68566 (Dec. 3, 1993 7, 1999).
(Source: Amended at 24 Ill. Reg. ________, effective ______________________)

73
SUBPART I: REQUIREMENTS FOR CLASS V INJECTION WELLS
Section 704.279 General
This Subpart sets forth the requirements applicable to the owner or operator of a Class V
injection well. Additional requirements listed elsewhere in this Part may also apply. Where they
may apply, those other requirements are referenced rather than repeated in this Subpart. The
requirements described in this Subpart and elsewhere in this Part are intended to protect
underground sources of drinking water and are part of the underground injection control (UIC)
program established under Section 13(c) of the Act.
BOARD NOTE: Derived from 40 CFR 144.79, as added at 64 Fed. Reg. 68566 (December 7,
1999). USEPA wrote the federal counterpart to this Subpart, 40 CFR 144, Subpart G, in a
question-and-answer format to make it easier to understand the regulatory requirements. The Board
has abandoned that format in favor of a more traditional approach of using clear statements of the
requirements and their applicability.
(Source: Added at 24 Ill. Reg. ________, effective ______________________)
Section 704.280 Definition of a Class V Injection Well
Section 704.106 defines the five classes of injection wells, including a Class V injection well, as
regulated under this Subpart. Typically, Class V wells are shallow wells used to place a variety
of fluids directly below the land surface. However, if the fluids placed in the ground qualify as a
hazardous waste under the Resource Conservation and Recovery Act (RCRA), the well is either a
Class I or Class IV well, not a Class V well. Examples of Class V wells are described in Section
704.281.
BOARD NOTE: Derived from 40 CFR 144.80, as added at 64 Fed. Reg. 68566 (December 7,
1999).
(Source: Added at 24 Ill. Reg. ________, effective ______________________)
Section 704.281 Examples of Class V Injection Wells
The following are examples of Class V injection wells to which this Subpart applies:
a) Air conditioning return flow wells used to return to the supply aquifer the water
used for heating or cooling in a heat pump;
b) Large capacity cesspools, including multiple-dwelling, community or regional
cesspools, or other devices that receive sanitary wastes containing human excreta,
that have an open bottom and sometimes perforated sides. The UIC requirements
do not apply to single family residential cesspools, nor do they apply to non-
residential cesspools that receive solely sanitary waste and which have the

74
capacity to serve fewer than 20 persons a day;
c) Cooling water return flow wells that are used to inject water previously used for
cooling;
d) Drainage wells that are used to drain surface fluids, primarily storm runoff, into a
subsurface formation;
e) Dry wells that are used for the injection of wastes into a subsurface formation;
f) Recharge wells that are used to replenish the water in an aquifer;
g) Salt water intrusion barrier wells that are used to inject water into a fresh aquifer
to prevent the intrusion of salt water into the fresh water;
h) Sand backfill and other backfill wells that are used to inject a mixture of water
and sand, mill tailings or other solids into mined out portions of subsurface mines
whether what is injected is a radioactive waste or not;
i) Septic system wells that are used to inject the waste or effluent from a multiple
dwelling, business establishment, community or regional business establishment
septic tank. The UIC requirements do not apply to single family residential septic
system wells, nor to non-residential septic system wells that are used solely for the
disposal of sanitary waste and which have the capacity to serve fewer than 20
persons a day;
j) Subsidence control wells (not used for the purpose of oil or natural gas
production) that are used to inject fluids into a non-oil-and-gas-producing zone to
reduce or eliminate subsidence associated with the overdraft of fresh water;
k) Injection wells associated with the recovery of geothermal energy for heating,
aquaculture, and production of electric power;
l) Wells that are used for solution mining of conventional mines such as stopes
leaching;
m) Wells that are used to inject spent brine into the same formation from which it
was withdrawn after extraction of halogens or their salts;
n) Injection wells that are used in experimental technologies;
o) Injection wells that are used for in situ recovery of lignite, coal, tar sands, and oil
shale; and
p) Motor vehicle waste disposal wells that receive or which have received fluids

75
from vehicular repair or maintenance activities, such as an auto body repair shop,
an automotive repair shop, a new or used car dealership, a specialty repair shop
(e.g., transmission and muffler repair shop), or any facility that does any vehicular
repair work. Fluids disposed in these wells may contain organic and inorganic
chemicals in concentrations that exceed the maximum contaminant levels (MCLs)
established by the primary drinking water regulations (35 Ill. Adm. Code 611).
These fluids also may include waste petroleum products and may contain
contaminants, such as heavy metals and volatile organic compounds, that pose
risks to human health.
BOARD NOTE: Derived from 40 CFR 144.81, as added at 64 Fed. Reg. 68566 (December 7,
1999).
(Source: Added at 24 Ill. Reg. ________, effective ______________________)
Section 704.282 Protection of Underground Sources of Drinking Water
This Subpart I requires that an owner or operator of a Class V injection well must not allow
movement of fluid into USDWs that might cause endangerment, that the owner or operator must
comply with the UIC requirements in this Part and 35 Ill. Adm. Code 702 and 730, that the
owner or operator must comply with any other measures required by the State or USEPA to
protect USDWs, and that the owner or operator must properly close its well when the owner or
operator is through using it. The owner or operator also must submit basic information about its
well, as described in Section 704.283.
a) Prohibition of fluid movement.
1) As described in Section 704.122(a), an owner’s or operator’s injection
activity cannot allow the movement of fluid containing any contaminant
into USDWs if the presence of that contaminant may cause a violation of
the primary drinking water standards under 35 Ill. Adm. Code 611, may
cause a violation of other health-based standards, or may otherwise
adversely affect the health of persons. This prohibition applies to the
owner’s or operator’s well construction, operation, maintenance,
conversion, plugging, closure, or any other injection activity.
2) If the Agency or USEPA learns that an owner’s or operator’s injection
activity may endanger USDWs, the Agency or USEPA may require the
owner or operator to close its well, require the owner or operator to get a
permit, or require other actions listed in Section 704.122(c), (d), or (e).
b) Closure requirements. An owner or operator must close the well in a manner that
complies with the above prohibition of fluid movement. Also, the owner or
operator must dispose of or otherwise manage any soil, gravel, sludge, liquids, or
other materials removed from or adjacent to its well in accordance with all

76
applicable federal, State, and local regulations and requirements.
c) Other requirements in this Part and 35 Ill. Adm. Code 702 and 730. Beyond this
Subpart, the owner and operator are subject to other UIC program requirements in
this Part and 35 Ill. Adm. Code 702 and 730. While most of the relevant
requirements are repeated or referenced in this Subpart for convenience, the owner
or operator needs to read all of this Part and 35 Ill. Adm. Code 702 and 730 to
understand the entire UIC program.
d) Other State or USEPA requirements. This Part and 35 Ill. Adm. Code 702 and
730 define minimum federally-derived UIC requirements. The Agency and
USEPA Region V have the flexibility to establish additional or more stringent
requirements based on the authorities in this Part and 35 Ill. Adm. Code 702 and
730 and 40 CFR 144 through 147, if such additional requirements are determined
to be necessary to protect USDWs. The owner and operator must comply with
any such additional requirements. The owner or operator should contact the
Agency or USEPA Region V to learn more.
BOARD NOTE: Derived from 40 CFR 144.82, as added at 64 Fed. Reg. 68567 (December 7,
1999).
(Source: Added at 24 Ill. Reg. ________, effective ______________________)
Section 704.283 Notification of a Class V Injection Well
The owner or operator of a Class V injection well needs to provide basic “inventory information”
about its well to the Agency, if the owner or operator has not done so already. The owner or
operator also needs to provide any additional information that the Agency requests in accordance
with the provisions of the UIC regulations.
a) Inventory requirements. Unless the owner or operator knows it has already
satisfied the inventory requirements in Section 704.128 that were in effect prior to
the issuance of this Subpart I, the owner or operator must give the Agency certain
information about itself and its injection operation.
BOARD NOTE: This information is requested on national form “Inventory of
Injection Wells,” OMB No. 2040-0042.
1) The owner or operator of a new or existing Class V injection well must
contact the Agency to determine what information it must submit and by
when it must submit that information.
2) The following is the information that the owner or operator must submit:
A) No matter what type of Class V well is owned or operated, the

77
owner or operator must submit at least the following information
for each Class V well: facility name and location; name and
address of a legal contact person for the facility; the ownership of
the facility; the nature and type of the injection well or wells; and
the operating status of the injection well or wells.
B) Illinois is designated a “Primacy State” by USEPA. Corresponding
40 CFR 144.83(a)(2)(ii) relates exclusively to “Direct
Implementation” states, so the Board has omitted it. This
statement maintains structural consistency with the federal
regulations.
C) The owner or operator must provide a list of all wells it owns or
operates, along with the following information for each well. (A
single description of wells at a single facility with substantially the
same characteristics is acceptable.)
i) The location of each well or project given by Township,
Range, Section, and Quarter-Section, or by latitude and
longitude to the nearest second, according to the
conventional practice in this State;
ii) The date of completion of each well;
iii) The identification and depth of the underground
formation(s) into which each well is injecting;
iv) The total depth of each well;
v) A construction narrative and schematic (both plan view and
cross-sectional drawings);
vi) The nature of the injected fluids;
vii) The average and maximum injection pressure at the
wellhead;
viii) The average and maximum injection rate; and
ix) The date of the last inspection.
3) The owner and operator is responsible for knowing about, understanding,
and complying with these inventory requirements.
b) Illinois is designated a “Primacy State” by USEPA. Corresponding 40 CFR

78
144.83(b) relates exclusively to “Direct Implementation” states, so the Board has
omitted it. This statement maintains structural consistency with the federal
regulations.
BOARD NOTE: Derived from 40 CFR 144.83, as added at 64 Fed. Reg. 68567 (December 7,
1999).
(Source: Added at 24 Ill. Reg. ________, effective ______________________)
Section 704.284 Permit Requirements
No permit is required for a Class V injection well, unless the owner or operator falls within an
exception described in subsection (b) of this Section.
a) General authorization by rule. With certain exceptions listed in subsection (b) of
this Section, an owner’s or operator’s Class V injection activity is “authorized by
rule,” meaning that the owner and operator has to comply with all the
requirements of this Subpart and the rest of this Part and 35 Ill. Adm. Code 702
and 730, but the owner or operator does not need to get an individual permit.
Well authorization expires once the owner or operator has properly closed its
well, as described in Section 704.282(b).
b) Circumstances in which permits or other actions are required. If an owner or
operator fits into one of the categories listed below, its Class V well is no longer
authorized by rule. This means that the owner or operator has to either get a
permit or close its injection well. The owner or operator can find out whether its
well falls into one of these categories by contacting the Agency or USEPA Region
V. Subparts D and H of this Part tell an owner or operator how to apply for a
permit and describe other aspects of the permitting process. Subpart C of 35 Ill.
Adm. Code 702 and Subpart E of this Part outline some of the requirements that
apply to the owner or operator if it gets a permit. An owner or operator must
either obtain a permit or close its injection well if any of the following is true:
1) The owner or operator fails to comply with the prohibition against fluid
movement in Section 704.122(a) and described in Section 704.282(a) (in
which case, the owner or operator must get a permit, close its well, or
comply with other conditions determined by the Agency or USEPA
Region V);
2) The Class V injection well is a large-capacity cesspool (in which case, the
owner or operator must close its well as specified in the additional
requirements set forth in Section 704.288) or the Class V injection well is
a motor vehicle waste disposal well in a ground water protection area or a
sensitive ground water area (in which case, the owner or operator must
either close its well or get a permit as specified in the additional

79
requirements set forth in Section 704.288). New motor vehicle waste
disposal wells and new cesspools are prohibited;
BOARD NOTE: A new motor vehicle waste disposal well or a new
cesspool is one for which construction had not commenced prior to April
5, 2000. See 40 CFR 144.84(a)(2), as added at 40 CFR 68568 (December
7, 1999).
3) The owner or operator is specifically required by the Agency or USEPA
Region V to get a permit (in which case, the authorization by rule expires
on the effective date of the permit issued, or the owner or operator is
prohibited from injecting into its well upon the occurrence of either of the
following:
A) The failure of the owner and operator to submit a permit
application in a timely manner, as specified in a notice from the
Agency; or
B) The effective date of a permit denial);
4) The owner or operator has failed to submit inventory information to the
Agency, as described in Section 704.283(a) (in which case, the owner and
operator is prohibited from injecting into the well until it complies with
the inventory requirements); or
5) Illinois is designated a “Primacy State” by USEPA. Corresponding 40
CFR 144.84(b)(5) relates exclusively to “Direct Implementation” states, so
the Board has omitted it. This statement maintains structural consistency
with the federal regulations.
BOARD NOTE: Derived from 40 CFR 144.84, as added at 64 Fed. Reg. 68568 (December 7,
1999).
(Source: Added at 24 Ill. Reg. ________, effective ______________________)
Section 704.285 Applicability of the Additional Requirements
a) Large-capacity cesspools. The additional requirements set forth in Section
704.288 apply to all new and existing large-capacity cesspools. If the owner or
operator is using a septic system for these type of wastes, the owner or operator is
not subject to the additional requirements in Section 704.288.
b) Motor vehicle waste disposal wells existing on April 5, 2000. If the owner or
operator has a Class V motor vehicle waste disposal well, the additional
requirements in Section 704.288 apply to that owner or operator if the well is

80
located in a ground water protection area or other sensitive ground water area that
is identified by the Agency, the Board, or USEPA Region V.
BOARD NOTE: An existing motor vehicle waste disposal well is one for which
construction had commenced prior to April 5, 2000. See 40 CFR 144.83(a)(1)(i)
and (a)(1)(ii), as added at 40 CFR 68568 (December 7, 1999). Corresponding 40
CFR 144.85(b) provides that the additional requirements apply Statewide if the
State or the USEPA Region fails to identify sensitive groundwater areas. The
Board has not included this Statewide applicability provision by virtue of 14.1
through 14.6 and Sections 17.1 through 17.4 of the Act [415 ILCS 5/14.1-14.6
and 17.1-17.4], Section 8 of the Illinois Groundwater Protection Act [415 ILCS
55/8], and 35 Ill. Adm. Code 615 through 620.
c) New Motor Vehicle Waste Disposal Wells. The additional requirements in
Section 704.288 apply to all new motor vehicle waste disposal wells.
BOARD NOTE: A new motor vehicle waste disposal well is one for which
construction had not commenced prior to April 5, 2000. See 40 CFR 144.85(c),
as added at 40 CFR 68568 (December 7, 1999).
BOARD NOTE: Derived from 40 CFR 144.85, as added at 64 Fed. Reg. 68569 (December 7,
1999).
(Source: Added at 24 Ill. Reg. ________, effective ______________________)
Section 704.286 Definitions
“State drinking water source assessment and protection program” is a new
approach to protecting drinking water sources, specified in section 1453 of the
1996 Amendments to the Safe Drinking Water Act (42 USC 300j-13).
BOARD NOTE: Under the federal requirements, states must prepare and submit
for USEPA approval a program that sets out how each state will conduct local
assessments, including the following: delineating the boundaries of areas
providing source waters for public water systems; identifying significant potential
sources of contaminants in such areas; and determining the susceptibility of public
water systems in the delineated areas to the inventoried sources of contamination.
The Illinois Groundwater Protection Act [415 ILCS 55] and the regulations at 35
Ill. Adm. Code 620 adopted pursuant to that law and Sections 14.1 through 14.6
and 17.1 through 17.4 of the Environmental Protection Act [415 ILCS 14.1-14.6
and 17.1-17.4] and the regulations at 35 Ill. Adm. Code 615 through 617 adopted
under those provisions are major segments of the required Illinois program.
“Complete local source water assessment for groundwater protection areas.”
When USEPA has approved a state's drinking water source assessment and
protection program, the state will begin to conduct local assessments for each

81
public water system in that state. For the purposes of this Subpart, local
assessments for community water systems and non-transient non-community
systems are complete when the four following requirements are met:
The State must delineate the boundaries of the assessment area for
community and non-transient non-community water systems, as such are
defined in 35 Ill. Adm. Code 611.101;
The State must identify significant potential sources of contamination in
these delineated areas;
The State must determine the susceptibility of community and non-
transient non-community water systems in the delineated area to such
contaminants; and
The State will develop its own plan for making the completed assessments
available to the public.
“Groundwater protection area” is a geographic area near or surrounding a
community or non-transient non-community water system, as defined in 35 Ill.
Adm. Code 611.101, that uses groundwater as a source of drinking water. For the
purposes of this Subpart I, the Board considers a “setback zone,” as defined in
Section 3.61 of the Act [415 ILCS 5/3.61] and regulated pursuant to Sections 14.1
through 14.6 of the Act [415 ILCS 5/14.1-14.6], to be a “groundwater protection
area,” as intended by corresponding 40 CFR 144.86(c). (See 35 Ill. Adm. Code
615 and 616.) These areas receive priority for the protection of drinking water
supplies and federal law requires the State to delineate and assess these areas
under section 1453 of the federal Safe Drinking Water Act, 42 USC 300j-13. The
additional requirements in Section 704.288 apply to an owner or operator if its
Class V motor vehicle waste disposal well is in a groundwater protection area for
either a community water system or a non-transient non-community water system.
BOARD NOTE: USEPA stated in corresponding 40 CFR 144.86(c) that in many
states these areas will be the same as wellhead protection areas delineated as
described in section 1428 of the federal SDWA, 42 USC 300h-7.
“Community water system”, as defined in 35 Ill. Adm. Code 611.101, is a public
water system that serves at least 15 service connections used by year-round
residents or which regularly serves at least 25 year-round residents.
“Non-transient non-community water system”, as defined in 35 Ill. Adm. Code
611.101, is a water system that is not a community water system and which
regularly serves at least 25 of the same people over six months a year. These may
include systems that provide water to schools, day care centers, government or
military installations, manufacturers, hospitals or nursing homes, office buildings,
and other facilities.

82
“Delineation”. Once the State's drinking water source assessment and protection
program is approved by USEPA, the State will begin delineating its local
assessment areas. “Delineation” is the first step in the assessment process in
which the boundaries of groundwater protection areas are identified.
“Other sensitive groundwater areas”. The State may also identify other areas in
the State in addition to groundwater protection areas that are critical to protecting
underground sources of drinking water from contamination. For the purposes of
this Subpart I, the Board considers a “regulated recharge area,” as defined in
Section 3.67 of the Act [415 ILCS 5/3.67] and regulated pursuant to Sections 17.1
through 17.4 of the Act [415 ILCS 5/17.1-17.4], to be an “other sensitive
groundwater area,” as intended by corresponding 40 CFR 144.86(g). (See 35 Ill.
Adm. Code 615 through 617.) These other sensitive groundwater areas may
include areas such as areas overlying sole-source aquifers; highly productive
aquifers supplying private wells; continuous and highly productive aquifers at
points distant from public water supply wells; areas where water supply aquifers
are recharged; karst aquifers that discharge to surface reservoirs serving as public
water supplies; vulnerable or sensitive hydrogeologic settings, such as glacial
outwash deposits, eolian sands, and fractured volcanic rock; and areas of special
concern selected based on a combination of factors, such as hydrogeologic
sensitivity, depth to groundwater, significance as a drinking water source, and
prevailing land-use practices.
BOARD NOTE: Derived from 40 CFR 144.86, as added at 64 Fed. Reg. 68569 (December 7,
1999).
(Source: Added at 24 Ill. Reg. ________, effective ______________________)
Section 704.287 Location in a Groundwater Protection Area or Another Sensitive Area
a) A person is subject to the requirements of Section 704.288 if the person owns or
operates an existing motor vehicle well and that person is located in a ground
water protection area or another sensitive ground water area.
BOARD NOTE: Corresponding 40 CFR 144.87(a) provides that the “new
requirements” apply statewide if the state or the USEPA Region fails to identify
sensitive groundwater areas. The Board has interpreted “new requirements” as
synonymous with “additional requirements” elsewhere in this Subpart I. Further,
the Board has not included this statewide applicability provision because Sections
14.1 through 14.6 and 17.1 through 17.4 of the Act [415 ILCS 5/14.1-14.6 and
17.1-17.4] and 35 Ill. Adm. Code 615 through 617 designate protected
groundwater resources and allow the designation of other sensitive areas for
protection. Further, the Illinois Groundwater Protection Act [415 ILCS 55], and
the regulations adopted as 35 Ill. Adm. Code 620 under that statute, protect the

83
quality of all groundwater resources in Illinois.
b) Ground water protection areas. Many segments of corresponding 40 CFR
144.87(b) set forth requirements applicable to the State only. Other requirements
apply to the regulated community contingent on the regulatory status of the
Illinois groundwater protection program. The Board codifies the requirements
applicable to the State in this subsection (b) for the purpose of informing the
regulated public and clarifying the requirements on the regulated community.
1) For the purpose of this Subpart, USEPA requires States to complete all
local source water assessments for ground water protection areas by
January 1, 2004. Once a local assessment for a ground water protection
area is complete every existing motor vehicle waste disposal well owner in
that ground water protection area has one year to close the well or receive
a permit. If the State fails to complete all local assessments for ground
water protection areas by January 1, 2004, the following may occur:
A) The new requirements in this Subpart I will apply to all existing
motor vehicle waste disposal wells in the State and the owner and
operator of a motor vehicle waste disposal well located outside of
the areas of the completed area assessments for ground water
protection areas must close their well or receive a permit by
January 1, 2005.
B) USEPA may grant a state an extension for up to one year from the
January 1, 2004 deadline if the state is making reasonable progress
toward completing the source water assessments for ground water
protection areas. States must apply for the extension by June 1,
2003. If a state fails to complete the assessments for the remaining
ground water protection areas by the extended date, the rule
requirements will apply to all motor vehicle waste disposal wells in
the state, and owners and operators of motor vehicle waste disposal
wells located outside of ground water protection areas with
completed assessments must close their well or receive a permit by
January 1, 2006.
2) The Agency must extend the compliance deadline for specific motor
vehicle waste disposal wells for up to one year if it determines that the
most efficient compliance option for the well is connection to a sanitary
sewer or installation of new treatment technology.
BOARD NOTE: Any Agency determination of the most efficient
compliance option is subject to Board review pursuant to Section 40 of the
Act [415 ILCS 5/40].

84
c) Other sensitive ground water areas. Existing motor vehicle waste disposal well
owners and operators within other sensitive ground water areas have until January
1, 2007 to receive a permit or close the well. If USEPA has granted the State an
extension of the time to delineate sensitive groundwater areas, the owner or
operator of an existing motor vehicle waste disposal well within a sensitive
ground water area has until January 1, 2008 to close the well or receive a permit,
unless the owner or operator is subject to a different compliance date pursuant to
subsection (b) of this Section. If the State has been granted an extension and fails
to delineate sensitive areas by the extended date, an owner or operator has until
January 1, 2008 to close the well or receive a permit, unless it is subject to a
different compliance date pursuant to subsection (b) of this Section.
BOARD NOTE: Corresponding 40 CFR 144.87(c) provides that the State has
until January 1, 2004 to identify sensitive groundwater areas. It also provides that
USEPA may extend that deadline for up to an additional year if the State is
making reasonable progress towards identifying such areas and the State has
applied for the extension by June 1, 2003. The Board has not included these
provisions relating to deadlines for State action because they impose requirements
on the State, rather than on regulated entities. Further, the corresponding federal
rule provides that the “new requirements” apply statewide if the State or the
USEPA Region fails to identify sensitive groundwater areas and that “the rule
requirements” apply in the event of an extension granted by USEPA and the State
fails to delineate sensitive areas. The Board has interpreted “new requirements”
and “rule requirements” as synonymous with “additional requirements” as used
elsewhere in this Subpart I. Finally, the Board has not included this statewide
applicability provision because Sections 17.1 through 17.4 of the Act [415 ILCS
5/17.1-17.4], Section 8 of the Illinois Groundwater Protection Act [415 ILCS
55/8], and 35 Ill. Adm. Code 615 through 620 protect groundwater resources and
allow the designation of sensitive areas.
d) Finding out if a well is in a groundwater protection
 
area or sensitive groundwater
area. The Agency must make that listing available for public inspection and
copying upon request. Any interested person may contact the Illinois
Environmental Protection Agency, Bureau of Water, Division of Public Water
Supplies at 1021 North Grand Ave. East, P.O. Box 19276, Springfield, Illinois
62794-9276 (217-785-8653) to obtain information on the listing or to determine if
any Class V injection well is situated in a groundwater protection area or another
sensitive groundwater area.
e) Changes in the status of the State drinking water source assessment and protection
program. If the State assesses a ground water protection area for ground water
supplying a new community water system or a new non-transient non-community
water system after January 1, 2004, or if the State re-delineates the boundaries of a
previously delineated ground water protection area to include an additional area,
the additional regulations of Section 704.288 would apply to any motor vehicle

85
waste disposal well in such an area. The additional regulations apply to the
affected Class V injection well one year after the State completes the local
assessment for the ground water protection area for the new drinking water system
or the new re-delineated area. The Agency must extend this deadline for up to one
year if it determines that the most efficient compliance option for the well is
connection to a sanitary sewer or installation of new treatment technology.
BOARD NOTE: Any Agency determination of the most efficient compliance
option is subject to Board review pursuant to Section 40 of the Act [415 ILCS
5/40].
f) If the State elects not to delineate the additional sensitive ground water areas, the
additional regulations of Section 704.288 apply to all Class V injection wells in
the State, regardless of the location, on January 1, 2007, or January 1, 2008 if an
extension has been granted as provided in subsection (c) of this Section, except
for wells in ground water protection areas that are subject to different compliance
deadlines explained in subsection (b) of this Section.
g) Application of requirements outside of groundwater protection areas and sensitive
ground water areas. The Agency must apply the additional requirements in
Section 704.288 to an owner or operator, even if the owner’s or operator’s well is
not located in the areas listed in subsection (a) of this Section, if the Agency
determines that the application of those additional requirements is necessary to
protect human health and the environment.
BOARD NOTE: Any Agency determination to apply the additional requirements
of Section 704.288 is subject to Board review pursuant to Section 40 of the Act
[415 ILCS 5/40]. The Board has omitted certain segments of corresponding 40
CFR 144.87 that encouraged State actions, since those segments did not impose
requirements on the regulated community.
BOARD NOTE: Derived from 40 CFR 144.87, as added at 64 Fed. Reg. 68569 (December 7,
1999).
(Source: Added at 24 Ill. Reg. ________, effective ______________________)
Section 704.288 Additional Requirements
Additional requirements are as follows:
a) Additional Requirements for Large-Capacity Cesspools Statewide. See Section
704.285 to determine the applicability of these additional requirements.
1) If the cesspool is existing (operational or under construction by April 5,
2000):

86
A) The owner or operator must close the well by April 5, 2005.
B) The owner or operator must notify the Agency of its intent to close
the well at least 30 days prior to closure.
BOARD NOTE: This information is requested on the federal form
entitled “Preclosure Notification for Closure of Injection Wells,”
available from the Agency on request.
2) If the cesspool is new or converted (construction not started before April 5,
2000) it is prohibited.
BOARD NOTE: Corresponding 40 CFR 144.88(b)(2) sets forth a federal
effective date of April 5, 2000 for the prohibition.
b) Additional Requirements for Motor Vehicle Waste Disposal Wells. See Section
704.285 to determine the applicability of these additional requirements.
1) If the motor vehicle waste disposal well is existing (operational or under
construction by April 5, 2000) the following applies:
A) If the well is in a ground water protection area, the owner or
operator must close the well or obtain a permit within one year
after the completion of the local source water assessment; the
Agency must extend the closure deadline, but not the permit
application deadline, for up to one year if it determines that the
most efficient compliance option is connection to a sanitary sewer
or installation of new treatment technology;
B) If the well is in an other sensitive groundwater area, the owner or
operator must close the well or obtain a permit by January 1, 2007;
the Agency may extend the closure deadline, but not the permit
application deadline, for up to one year if it determines that the
most efficient compliance option is connection to a sanitary sewer
or installation of new treatment technology;
C) If the owner or operator plans to seek a waiver from the ban and
apply for a permit by the date the owner or operator submits its
permit application, the owner or operator must meet the maximum
contaminant levels (MCLs) for drinking water, set forth in 35 Ill.
Adm. Code 611, at the point of injection while the permit
application is under review, if the owner or operator chooses to
keep operating the well;

87
D) If the owner or operator receives a permit, the owner or operator
must comply with all permit conditions by the dates specified in its
permit, if the owner or operator chooses to keep operating the well,
including requirements to meet MCLs and other health based
standards at the point of injection, follow best management
practices, and monitor the injectate and sludge quality;
E) If the State has not completed all of its local assessments by
January 1, 2004 (or by the extended date if the State has obtained
an extension, as described in Section 704.287), and the well is
outside an area with a completed assessment, the owner or operator
must close the well or obtain a permit by January 1, 2005, unless
the State obtains an extension, as described in Section 704.287(b),
in which case the deadline is January 1, 2006; the Agency must
extend the closure deadline, but not the permit application
deadline, for up to one year if it determines that the most efficient
compliance option is connection to a sanitary sewer or installation
of new treatment technology;
F) If the State has not delineated other sensitive ground water areas by
January 1, 2004, and the well is outside of an area with a
completed assessment, the owner or operator must close the well or
obtain a permit regardless of its location by January 1, 2007, unless
the State obtains an extension as described in Section 704.287(c),
in which case the deadline is January 2008; or
G) If the owner or operator plans to close its well, the owner or
operator must notify the Agency of its intent to close the well (this
includes closing the well prior to conversion) by at least 30 days
prior to closure.
BOARD NOTE: This information is requested on the federal form
entitled “Preclosure Notification for Closure of Injection Wells,”
available from the Agency on request.
BOARD NOTE: Any Agency determination of the most efficient
compliance option under subsection (b)(1)(A), (b)(1)(B), or (b)(1)(E) is
subject to Board review pursuant to Section 40 of the Act [415 ILCS
5/40].
2) If the motor vehicle waste disposal well is new or converted (construction
not started before April 5, 2000) it is prohibited.
BOARD NOTE: Corresponding 40 CFR 144.88(b)(2) sets forth a federal
effective date of April 5, 2000 for the prohibition.

88
BOARD NOTE: Derived from 40 CFR 144.88, as added at 64 Fed. Reg. 68570 (December 7,
1999).
(Source: Added at 24 Ill. Reg. ________, effective ______________________)
Section 704.289 Closure of a Class V Injection Well
The following describes the requirements for closing or converting a Class V injection well:
a) Closure.
1) Prior to closing a Class V large-capacity cesspool or motor vehicle waste
disposal well, the owner or operator must plug or otherwise close the well
in a manner that complies with the prohibition of fluid movement set forth
in Section 704.122 and summarized in Section 704.282(a). The owner or
operator must also dispose of or otherwise manage any soil, gravel, sludge,
liquids, or other materials removed from or adjacent to the well in
accordance with all applicable federal, State, and local regulations and
requirements, as described in Section 704.282(b).
2) Closure does not mean that the owner or operator needs to cease
operations at its facility, only that the owner or operator needs to close its
well. A number of alternatives are available for disposing of waste fluids.
Examples of alternatives that may be available to motor vehicle stations
include the following: recycling and reusing wastewater as much as
possible; collecting and recycling petroleum-based fluids, coolants, and
battery acids drained from vehicles; washing parts in a self-contained,
recirculating solvent sink, with spent solvents being recovered and
replaced by the supplier; using absorbents to clean up minor leaks and
spills, and placing the used materials in approved waste containers and
disposing of them properly; using a wet vacuum or mop to pick up
accumulated rain or snow melt, and if allowed, connecting floor drains to a
municipal sewer system or holding tank, and if allowed, disposing of the
holding tank contents through a publicly owned treatment works (POTW).
The owner or operator should check with the POTW that it might use to
see if the POTW would accept the owner’s or operator’s wastes.
Alternatives that may be available to owners and operators of a large-
capacity cesspool include the following: conversion to a septic system;
connection to a sewer; and installation of an on-site treatment unit.
b) Conversions. In limited cases, the Agency may authorize the conversion
(reclassification) of a motor vehicle waste disposal well to another type of Class V
well. Motor vehicle wells may only be converted if the following two conditions
are fulfilled: (1) all motor vehicle fluids are segregated by physical barriers and

89
are not allowed to enter the well and (2) injection of motor vehicle waste is
unlikely based on a facility's compliance history and records showing proper
waste disposal. The use of a semi-permanent plug as the means to segregate
waste is not sufficient to convert a motor vehicle waste disposal well to another
type of Class V well.
BOARD NOTE: Derived from 40 CFR 144.89, as added at 64 Fed. Reg. 68572 (December 7,
1999).
(Source: Added at 24 Ill. Reg. ________, effective ______________________)
TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE G: WASTE DISPOSAL
CHAPTER I: POLLUTION CONTROL BOARD
SUBCHAPTER d: UNDERGROUND INJECTION CONTROL AND
UNDERGROUND STORAGE TANK PROGRAMS
PART 730
UNDERGROUND INJECTION CONTROL OPERATING REQUIREMENTS
SUBPART A: GENERAL
Section
730.101 Applicability, Scope and Effective Date
730.102 Laws Authorizing Regulations
730.103 Definitions
730.104 Criteria for Exempted Aquifers
730.105 Classification of Injection Wells
730.106 Area of Review
730.107 Corrective Action
730.108 Mechanical Integrity
730.109 Criteria for Establishing Permitting Priorities
730.110 Plugging and Abandoning Class I and Class III Wells
SUBPART B: CRITERIA AND STANDARDS APPLICABLE TO CLASS I
NON-HAZARDOUS WELLS
Section
730.111 Applicability
730.112 Construction Requirements
730.113 Operating, Monitoring and Reporting Requirements
730.114 Information to be Considered by the Agency
SUBPART C: CRITERIA AND STANDARDS APPLICABLE TO CLASS II
WELLS
Section

90
730.121 Adoption of Criteria and Standards Applicable to Class II Wells by the Illinois
Department of Mines and Minerals
SUBPART D: CRITERIA AND STANDARDS APPLICABLE TO CLASS III
WELLS
Section
730.131 Applicability
730.132 Construction Requirements
730.133 Operating, Monitoring, and Reporting Requirements
730.134 Information to be Considered by the Agency
SUBPART F: CRITERIA AND STANDARDS APPLICABLE TO CLASS V
INJECTION WELLS
Section
730.151 Applicability
730.152 Inventory and Assessment (Repealed)
SUBPART G: CRITERIA AND STANDARDS APPLICABLE TO CLASS I
HAZARDOUS WELLS
Section
730.161 Applicability and Definitions
730.162 Minimum Criteria for Siting
730.163 Area of Review
730.164 Correction Corrective Action for Wells in the Area of Review
730.165 Construction Requirements
730.166 Logging, Sampling, and Testing Prior to New Well Operation
730.167 Operating Requirements
730.168 Testing and Monitoring Requirements
730.169 Reporting Requirements
730.170 Information to be Evaluated by the Director
730.171 Closure
730.172 Post-Closure Care
730.173 Financial Responsibility for Post-Closure Care
AUTHORITY: Implementing Sections 7.2, 13, and 22.4 and authorized by Section 27 of the
Environmental Protection Act [415 ILCS 5/7.2, 13, 22.4, and 27].
SOURCE: Adopted in R81-32, 47 PCB 93, at 6 Ill. Reg. 12479, effective March 3, 1984; amended
in R82-19, 53 PCB 131 at 7 Ill. Reg. 14426, effective March 3, 1984; recodified at 10 Ill. Reg.
14174; amended in R89-2 at 14 Ill. Reg. 3130, effective February 20, 1990; amended in R89-11 at
14 Ill. Reg. 11959, effective July 9, 1990; amended in R93-6 at 17 Ill. Reg. 15646, effective
September 14, 1993; amended in R94-5 at 18 Ill. Reg. 18391, effective December 20, 1994;
amended in R95-4 at 19 Ill. Reg. 10047, effective June 27, 1995; amended in R00-11/R01-1 at 24
Ill. Reg. ________, effective ______________________.

91
SUBPART A: GENERAL
Section 730.103 Definitions
The following definitions apply to the underground injection control program.
“Abandoned well” means a well whose use has been permanently discontinued or
which that is in a state of disrepair such that it cannot be used for its intended
purpose or for observation purposes.
“Act” means the Solid Waste Disposal Act, as amended by the Resource
Conservation and Recovery Act of 1976, (P.L. 94-580, as amended by P.L. 95-609,
42 U.S.C. USC 6901.).
“Administrator” means the Administrator of the U.S. Environmental Protection
Agency or the Administrator’s designee.
“Agency” means the Illinois Environmental Protection Agency.
“Application” means the Agency forms for applying for a permit, including any
additions, revisions or modifications to the forms. For RCRA, application also
includes the information required by the Agency under 35 Ill. Adm. Code 703.182 et
seq.-703.188 and 703.200 (contents of Part B of the RCRA application).
“Aquifer” means a geological geologic formation, group of formations or part of a
formation that is capable of yielding a significant amount of water to a well or
spring.
“Area of review” means the area surrounding an “injection well” described
according to the criteria set forth in Section 730.106 or, in the case of an area permit,
the project area plus a circumscribing area the width of which is either 402 meters
(1/4 one-quarter of a mile) or a number calculated according to the criteria set forth
in Section 730.106.
“Casing” means a pipe or tubing of appropriate material, of varying diameter and
weight, lowered into a borehole during or after drilling in order to support the sides
of the hole and thus prevent the walls from caving, to prevent loss of drilling mud
into porous ground or to prevent water, gas, or other fluid from entering or leaving
the hole.
“Catastrophic collapse” means the sudden and utter failure of overlying “strata”
caused by removal of underlying materials.
“Cementing” means the operation whereby a cement slurry is pumped into a drilled

92
hole or forced behind the casing.
“Cesspool” means a “drywell” that receives untreated sanitary waste containing
human excreta and which sometimes has an open bottom or perforated sides.
“Confining bed” means a body of impermeable or distinctly less permeable material
stratigraphically adjacent to one or more aquifers.
“Confining zone” means a geological geologic formation, group of formations, or
part of a formation that is capable of limiting fluid movement above an injection
zone.
“Contaminant” means any physical, chemical, biological or radiological substance
or matter in water.
“Conventional mine” means an open pit or underground excavation for the
production of minerals.
“Date of approval by USEPA of the Illinois UIC program” means February 1, 1984.
“Director” means the Director of the Illinois Environmental Protection Agency or
the Administrator’s designee.
“Disposal well” means a well used for the disposal of waste into a subsurface
stratum.
“Drywell” means a well, other than an improved sinkhole or subsurface fluid
distribution system, that is completed above the water table so that its bottom and
sides are typically dry except when receiving fluids.
“Effective date of the UIC program” means February 1, 1984.
“Environmental Protection Act” means the Environmental Protection Act (Ill. Rev.
Stat. 1987 and 1988 Supp. ch. 111 1/2, par. 1001 et seq.), as amended [415 ILCS 5].
“EPA” or “USEPA” means the United States Environmental Protection Agency.
“Exempted aquifer” means an “aquifer” or its portion that meets the criteria in the
definition of “underground source of drinking water” but which has been exempted
according to the procedures of 35 Ill. Adm. Code 704.123, 704.104, and 702.105.
“Existing injection well” means an “injection well” other than a “new injection
well.”
“Experimental technology” means a technology which that has not been proven

93
feasible under the conditions in which it is being tested.
“Facility or activity” means any “HWM facility,” UIC “injection well”, or any other
facility or activity (including land or appurtenances thereto) that is subject to
regulation under the “State” RCRA or UIC program.
“Fault” means a surface or zone of rock fracture along which there has been
displacement.
“Flow rate” means the volume per unit time of the flow of a gas or other fluid
substance which that emerges from an orifice, pump or turbine or which passes
along a conduit or channel.
“Fluid” means material or substance which that flows or moves, whether in a
semisolid, liquid sludge, gas or any other form or state.
“Formation” means a body of rock characterized by a degree of lithologic
homogeneity which that is prevailingly, but not necessarily, tabular and is mappable
on the earth’s surface or traceable in the subsurface.
“Formation fluid” means “fluid” present in a “formation” under natural conditions
as opposed to introduced fluids, such as drilling mud.
“Generator” means any person, by site location, whose act or process produces
hazardous waste identified or listed in 35 Ill. Adm. Code 721.
“Groundwater” means water below the land surface in a zone of saturation.
“Hazardous waste” means a hazardous waste as defined in 35 Ill. Adm. Code
721.103.
“Hazardous Waste Management waste management facility” or (“HWM facility”)
means all contiguous land, and structures, other appurtenances and improvements
on the land used for treating, storing or disposing of hazardous waste. A facility
may consist of several treatment, storage or disposal operational units (for example,
one or more landfills, surface impoundments or combination of them).
“HWM facility” means “Hazardous Waste Management waste management
facility.”
“Illinois” means the State of Illinois.
“Improved sinkhole” means a naturally occurring karst depression or other natural
crevice that is found in volcanic terrain and other geologic settings that have been
modified by man for the purpose of directing and emplacing fluids into the

94
subsurface.
“Injection well” means a “well” into which “fluids” are being injected.
“Injection zone” means a geological geologic “formation,” group of formations or
part of a formation receiving fluids through a well.
“Lithology” means the description of rocks on the basis of their physical and
chemical characteristics.
“Owner or operator” means the owner or operator of any facility or activity subject
to regulation under the RCRA, UIC, or the Environmental Protection Act.
“Packer” means a device lowered into a well which that can be expanded to produce
a fluid-tight seal.
“Permit” means an authorization, license or equivalent control document issued by
the Agency to implement the requirements of this Part and 35 Ill. Adm. Code 702
through 705. Permit does not include RCRA interim status, (35 Ill. Adm. Code
703, Subpart C), UIC authorization by rule (Subpart C of 35 Ill. Adm. Code 704), or
any permit which that has not yet been the subject of final Agency action, such as a
“draft permit” or a “proposed permit.”
“Plugging” means the act or process of stopping the flow of water, oil or gas into or
out of a formation through a borehole or well penetrating that formation.
“Plugging record” means a systematic listing of permanent or temporary
abandonment of water, oil, gas, test, exploration and waste injection wells, and may
contain a well log, description of amounts and types of plugging material used, the
method employed for plugging, a description of formations which that are sealed
and a graphic log of the well showing formation location, formation thickness and
location of plugging structures.
“Point of injection,” for a Class V well, means the last accessible sampling point
prior to waste fluids being released into the subsurface environment through the
well. For example, the point of injection of a Class V septic system might be the
distribution box--the last accessible sampling point before the waste fluids drain
into the underlying soils. For a dry well, it is likely to be the well bore itself.
“Pressure” means the total load or force per unit area acting on a surface.
“Project” means a group of wells in a single operation.
“Radioactive Waste” means any waste which that contains radioactive material in
concentrations which exceed those listed in 10 CFR 20, Appendix B, Table II,

95
Column 2, incorporated by reference in 35 Ill. Adm. Code 720.111.
“RCRA” means “Act” the Solid Waste Disposal Act, as amended by the Resource
Conservation and Recovery Act of 1976 (P.L. 94-580, as amended by P.L. 95-609,
42 USC 6901).
“Sanitary waste” means liquid or solid wastes originating solely from humans and
human activities, such as wastes collected from toilets, showers, wash basins,
sinks used for cleaning domestic areas, sinks used for food preparation, clothes
washing operations, and sinks or washing machines where food and beverage
serving dishes, glasses, and utensils are cleaned. Sources of these wastes may
include single or multiple residences, hotels and motels, restaurants, bunkhouses,
schools, ranger stations, crew quarters, guard stations, campgrounds, picnic
grounds, day-use recreation areas, other commercial facilities, and industrial
facilities, provided the waste is not mixed with industrial waste.
“SDWA” means the Safe Drinking Water Act (Pub. P.L. 95-523, as amended by
P.L. 95-190, 42 U.S.C. USC 300(f)).
“Septic system” means a well that is used to emplace sanitary waste below the
surface and which is typically comprised of a septic tank and subsurface fluid
distribution system or disposal system.
“Site” means the land or water area where any facility or activity is physically
located or conducted, including adjacent land used in connection with the facility or
activity.
“Sole or principal source aquifer” means an aquifer which that has been designated
by the Administrator pursuant to Sections Section 1424(a) or (3) (e) of the SDWA.
“State” means the State of Illinois.
“Stratum” (plural strata) means a single sedimentary bed or layer, regardless of
thickness, that consists of generally the same kind of rock material.
“Subsidence” means the lowering of the natural land surface in response to: earth
movements; lowering of fluid pressure, removal of underlying supporting material
by mining or solution of solids, either artificially or from natural causes; compaction
due to wetting (Hydrocompaction) (hydrocompaction); oxidation of organic matter
in soils; or added load on the land surface.
“Subsurface fluid distribution system” means an assemblage of perforated pipes,
drain tiles, or other similar mechanisms intended to distribute fluids below the
surface of the ground.

96
“Surface casing” means the first string of well casing to be installed in the well.
“Total dissolved solids” or (“TDS”) means the total dissolved (filterable) solids as
determined by use of the method specified in 40 CFR 136, incorporated by reference
in 35 Ill. Adm. Code 720.111.
“UIC” means the Underground Injection Control program under Part C of the Safe
Drinking Water Act, including the approved Illinois program.
“Underground injection” means a “well injection.”
“Underground source of drinking water” or (“USDW”) means an “aquifer” or its
portion of which the following is true:
Which It supplies any public water system; or
Which It contains a sufficient quantity of groundwater to supply a public
water system; and
Currently It currently supplies drinking water for human
consumption; or
Contains It contains less than 10,000 mg/L mg/l total dissolved
solids; and
Which It is not an exempted “aquifer”.
“USDW” means “underground source of drinking water.”
“Well” means a bored, drilled, or driven shaft whose depth is greater than the
largest surface dimension; or a dug hole, whose depth is greater than the largest
surface dimension; an improved sinkhole; or a subsurface fluid distribution system.
“Well injection” means the subsurface emplacement of fluids through a bored,
drilled or driven well; or through a dug well, where the depth of the dug well is
greater than the largest surface dimension.
“Well monitoring” means the measurement, by on-site instruments or laboratory
methods, of the quality of water in a well.
“Well plug” means a watertight and gastight seal installed in a borehole or well to
prevent movement of fluids.
“Well stimulation” means several processes used to clean the well bore, enlarge
channels and increase pore space in the interval to be injected, thus making it

97
possible for wastewater to move more readily into the formation, and includes
surging, jetting, blasting, acidizing and hydraulic fracturing.
BOARD NOTE: Derived from 40 CFR 146.3 (19881999), as amended at 64 Fed. Reg. 68573
(December 7, 1999).
(Source: Amended at 24 Ill. Reg. ________, effective ______________________)
Section 730.105 Classification of Injection Wells
Injection wells are classified as follows:
a) Class I.
1) Wells used by generators of hazardous wastes waste or owners or operators
of hazardous waste management facilities to inject hazardous waste beneath
the lowermost formation containing an underground source of drinking
water within 402 meters (1/4 one-quarter mile) of the well bore.
2) Other industrial and municipal disposal wells that inject fluids beneath the
lowermost formation containing an underground source of drinking water
within 402 meters (1/4 one-quarter mile) of the well bore.
3) Radioactive waste disposal wells that inject fluids below the lowermost
formation containing an underground source of drinking water within 402
meters (one-quarter mile) of the well bore.
b) Class II. Wells that inject fluids:
1) That are brought to the surface in connection with conventional oil or natural
gas production and which may be commingled with wastewaters from gas
plants that are an integral part of production operations, unless those waters
are classified as a hazardous waste at the time of injection;
2) For enhanced recovery of oil or natural gas; and
3) For storage of hydrocarbons that are liquid at standard temperature and
pressure.
c) Class III. Wells that inject for extraction of minerals, including:
1) Mining of sulfur by the Frasch process;
2) In situ production of uranium or other metals. This category includes only in
situ production from ore bodies that have not been conventionally mined.

98
Solution mining of conventional mines, such as stopes leaching, is included
in Class V; and
3) Solution mining of salts or potash.
BOARD NOTE: Class III wells include the recovery of geothermal energy
to produce electric power but do not include wells used in heating or
aquaculture that fall under Class V.
d) Class IV.
1) Wells used by generators of hazardous waste or of radioactive waste, by
owners or operators of hazardous waste management facilities, or by owners
or operators of radioactive waste disposal sites to dispose of hazardous
waste or radioactive waste into a formation that contains an underground
source of drinking water within 402 meters (1/4 one-quarter mile) of the
well.
2) Wells used by generators of hazardous waste or of radioactive waste, by
owners or operators of hazardous waste management facilities, or by owners
or operators of radioactive waste disposal sites to dispose of hazardous
waste or radioactive waste above a formation that contains an underground
source of drinking water within 402 meters (1/4 one-quarter mile) of the
well.
3) Wells used by generators of hazardous waste or owners or operators of
hazardous waste management facilities to dispose of hazardous waste that
cannot be classified under subsection (a)(1), (d)(1), or (d)(2) above of this
Section (e.g., wells used to dispose of hazardous wastes into or above a
formation that contains an aquifer that has been exempted pursuant to
Section 730.104).
e) Class V. Injection wells not included in Class I, Class II, Class III, or Class IV.
Specific types of Class V injection wells include the following:
1) Air conditioning return flow wells used to return the water used in a heat
pump for heating or cooling to the supply aquifer;
2) Cesspools, including multiple dwelling, community, or regional cesspools,
or other devices that receive wastes that have an open bottom and sometimes
have perforated sides. The UIC requirements do not apply to single family
residential cesspools or to non-residential cesspools that receive solely
sanitary wastes and have the capacity to serve fewer than 20 persons a day;
3) Cooling water return flow wells used to inject water previously used for

99
cooling;
4) Drainage wells used to drain surface fluid, primarily storm runoff, into a
subsurface formation;
5) Dry wells used for the injection of wastes into a subsurface formation;
6) Recharge wells used to replenish the water in an aquifer;
7) Salt water intrusion barrier wells used to inject water into a fresh water
aquifer to prevent the intrusion of salt water into the fresh water;
8) Sand backfill and other backfill wells used to inject a mixture of water and
sand, mill tailings, or other solids into mined out portions of subsurface
mines whether what is injected is a radioactive waste or not;
9) Septic system wells used to inject the waste or effluent from a multiple
dwelling, business establishment, community, or regional business
establishment septic tank. The UIC requirements do not apply to single
family residential septic system wells, or to nonresidential septic system
wells that are used solely for the disposal of sanitary waste and which have
the capacity to serve fewer than 20 persons a day;
10) Subsidence control wells (not used for the purpose of oil or natural gas
production) used to inject fluids into a non-oil or gas producing zone to
reduce or eliminate subsidence associated with the overdraft of fresh water;
11) Radioactive waste disposal wells other than Class IV wells;
12) Injection wells associated with the recovery of geothermal energy for
heating, aquaculture or production of electric power;
13) Wells used for solution mining of conventional mines such as stopes
leaching;
14) Wells used to inject spent brine into the same formation from which it was
withdrawn after extraction of halogens or their salts; and
15) Injection wells used in experimental technologies.
(Source: Amended at 24 Ill. Reg. ________, effective ______________________)
Section 730.110 Plugging and Abandoning Class I and Class III Wells
a) Requirements for Class I, II and III injection wells.

100
a1) Prior to abandoning a Class I or Class III well, the well shall must be
plugged with cement in a manner that will not allow the movement of fluids
either into or between underground sources of drinking water. The Agency
may allow Class III wells to use other plugging materials if it is satisfied that
such materials will prevent movement of fluids into or between underground
sources of drinking water.
B2) Placement of the cement plugs shall must be accomplished by one of the
following:
1A) The Balance Method;
2B) The Dump Bailer Method;
3C) The Two-Plug Method; or
4D) An alternative method approved by the Agency in the permit that will
reliably provide a comparable level of protection to underground sources of
drinking water.
C3) The well to be abandoned must be in a state of static equilibrium with the
mud weight equalized top to bottom, either by circulating the mud in the
well at least once or by a comparable method prescribed by the Agency,
prior to the placement of the cement plug.
D4) The plugging and abandonment required in 35 Ill. Adm. Code 704.188
704.181(f) and 704.187 704.188 must also demonstrate adequate protection
of USDWs in the case of a Class III well that underlies or is in an aquifer
that has been exempted under Section 730.104. The Agency shall must
prescribe aquifer cleanup and monitoring where it deems it necessary and
feasible to insure adequate protection of USDWs.
b) Requirements for Class IV injection wells. Prior to abandoning a Class IV well,
the owner or operator must close the well in accordance with 35 Ill. Adm. Code
704.145(b).
c) Requirements for Class V injection wells.
1) Prior to abandoning a Class V injection well, the owner or operator must
close the well in a manner that prevents the movement of fluid containing
any contaminant into an underground source of drinking water if the
presence of that contaminant may cause a violation of any primary
drinking water regulation under 35 Ill. Adm. Code 611, may cause a
violation of any of the ground water quality standards of 35 Ill. Adm. Code

 
101
620, or may otherwise adversely affect the health of persons. Closure
requirements for motor vehicle waste disposal wells and large-capacity
cesspools are listed at Section 704.289.
2) The owner or operator must dispose of or otherwise manage any soil,
gravel, sludge, liquids, or other materials removed from or adjacent to the
well in accordance with all applicable federal, State, and local regulations
and requirements.
(Source: Amended at 24 Ill. Reg. ________, effective ______________________)
SUBPART G: CRITERIA AND STANDARDS APPLICABLE TO CLASS I
HAZARDOUS WELLS
Section 730.167 Operating Requirements.
a) Except during stimulation, the owner or operator shall must assure that injection
pressure at the wellhead does not exceed a maximum which shall that must be
calculated so as to assure that the pressure in the injection zone during injection
does not initiate new fractures or propagate existing fractures in the injection
zone. The owner or operator shall must assure that the injection pressure does not
initiate fractures or propagate existing fractures in the confining zone, nor cause
the movement of injection or formation fluids into a USDW.
b) Injection between the outermost casing protection USDWs and the well bore is
prohibited.
c) The owner or operator shall must maintain an annulus pressure that exceeds the
operating injection pressure, unless the Agency determines that such a
requirement might harm the integrity of the well. The fluid in the annulus must be
noncorrosive, or must contain a corrosion inhibitor.
d) The owner or operator shall must maintain mechanical integrity of the injection
well at all times.
e) Permit requirements for owners or operators of hazardous waste injection wells
which that inject wastes which have the potential to react with the injection
formation to generate gases must include:
1) Conditions limiting the temperature, pH, or acidity of the injected waste;
and
2) Procedures necessary to assure that pressure imbalances which that might
cause a backflow or blowout do not occur.

102
f) The owner or operator shall must install and use continuous recording devices to
monitor: the injection pressure; the flow rate, volume, and temperature of injected
fluids,; and the pressure on the annulus between the tubing and the long string
casing, and shall must install and use:
1) Automatic alarm and automatic shut-off systems, designed to sound and
shut-in the well when pressures and flow rates or other parameters
specified by permit condition exceed a range or gradient specified in the
permit; or
2) Automatic alarms, designed to sound when the pressures and flow rates or
other parameters exceed a rate or gradient specified in the permit, in cases
where the owner or operator certifies that a trained operator will be on-site
at all times when the well is operating.
g) If an automatic alarm or shutdown is triggered, the owner or operator shall must
immediately investigate and identify the cause of the alarm or shutoff without
undue delay. If, upon such investigation, the well appears to be lacking
mechanical integrity, or if monitoring required under subsection (f) of this Section
otherwise indicates that the well may be lacking mechanical integrity, the owner
or operator shall must:
1) Stop injecting waste fluids unless authorized by permit condition to
continue or resume injection;
2) Take all necessary steps to determine the presence or absence of a leak;
and
3) Notify the Agency within 24 hours after the alarm or shutdown.
h) If a loss of mechanical integrity is discovered pursuant to subsection (g) of this
Section or during periodic mechanical integrity testing, the owner or operator shall
must:
1) Immediately cease injection of waste fluids;
2) Take all steps reasonably necessary to determine whether there may have
been a release of hazardous wastes or hazardous waste constituents into
any unauthorized zone;
3) Notify the Agency within 24 hours after loss of mechanical integrity is
discovered;
4) Notify the Agency when injection can be expected to resume; and

103
5) Restore and demonstrate mechanical integrity pursuant to Section 730.108
prior to resuming injection of waste fluids.
i) Whenever the owner or operator obtains evidence that there may have been a
release of injected wastes into an unauthorized zone:
1) The owner or operator shall must immediately cease injection of waste
fluids, and:
A) Notify the Agency within 24 hours of obtaining such evidence;
B) Take all necessary steps to identify and characterize the extent of
any release;
C) Comply with any remediation plan specified by permit condition;
D) Implement any remediation plan specified by permit condition; and
E) Where such release is into a USDW currently serving as a water
supply, place a notice in a newspaper of general circulation.
2) The Agency shall must permit the operator to resume injection prior to
completing cleanup action if the owner or operator demonstrates that the
injection operation will not endanger USDWs.
j) The owner or operator shall must notify the Agency and obtain a permit
modification prior to conducting any well workover.
BOARD NOTE: Derived from 40 CFR 146.67, as added at 53 Fed. Reg. 28150, July 26, 1988
(1999).
(Source: Amended at 24 Ill. Reg. ________, effective ______________________)
TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE G: WASTE DISPOSAL
CHAPTER I: POLLUTION CONTROL BOARD
SUBCHAPTER d: UNDERGROUND INJECTION CONTROL AND
UNDERGROUND STORAGE TANK PROGRAMS
PART 738
HAZARDOUS WASTE INJECTION RESTRICTIONS

 
104
SUBPART A: GENERAL
Section
738.101 Purpose, Scope, and Applicability
738.102 Definitions
738.103 Dilution Prohibited as a Substitute for Treatment
738.104 Case-by-Case Extensions of an Effective Date
738.105 Waste Analysis
SUBPART B: PROHIBITIONS ON INJECTION
Section
738.110 Waste Specific Prohibitions - Solvent Wastes
738.111 Waste Specific Prohibitions - Dioxin-Containing Wastes
738.112 Waste Specific Prohibitions - California List Wastes
738.114 Waste Specific Prohibitions - First Third Wastes
738.115 Waste Specific Prohibitions - Second Third Wastes
738.116 Waste Specific Prohibitions - Third Third Wastes
738.117 Waste-Specific Prohibitions - Newly-Listed Wastes
738.118 Waste-Specific Prohibitions - Newly-Listed and Identified Wastes
SUBPART C: PETITION STANDARDS AND PROCEDURES
Section
738.120 Petitions to Allow Injection of a Prohibited Waste
738.121 Required Information to Support Petitions
738.122 Submission, Review and Approval or Denial of Petitions
738.123 Review of Adjusted Standards
738.124 Termination of Adjusted Standards
AUTHORITY: Implementing Sections 7.2, 13, and 22.4 and authorized by Section 27 of the
Environmental Protection Act [415 ILCS 5/7.2, 13, 22.4, and 27].
SOURCE: Adopted in R89-2 at 14 Ill. Reg. 3059, effective February 20, 1990; amended in R89-
11 at 14 Ill. Reg. 11948, effective July 9, 1990; amended in R90-14 at 15 Ill. Reg. 11425,
effective July 24, 1991; amended in R92-13 at 17 Ill. Reg. 6190, effective April 5, 1993;
amended in R93-6 at 17 Ill. Reg. 15641, effective September 14, 1993; amended in R95-4 at 19
Ill. Reg. 9501, effective June 27, 1995; amended in R96-10/R97-3/R97-5 at 22 Ill. Reg. 238,
effective December 16, 1997; amended in R97-21/R98-3/R98-5 at 22 Ill. Reg. 17486, effective
September 28, 1998; amended in R98-21/R99-2/R99-7 at 23 Ill. Reg. 1695, effective January 19,
1999; amended in R00-11/R01-1 at 24 Ill. Reg. ________, effective ______________________.
SUBPART B: PROHIBITIONS ON INJECTION
Section 738.118 Waste-Specific Prohibitions - Newly-Listed and Identified Wastes
a) All newly identified D004 through D011 wastes and characteristic mineral

105
processing wastes, except those identified in subsection (b) of this Section, are
prohibited from underground injection.
b) Effective May 26, 2000, characteristic Characteristic hazardous wastes from
titanium dioxide mineral processing, and radioactive wastes mixed with newly
identified D004 through D011 or mixed with newly identified characteristic
mineral processing wastes, are prohibited from underground injection.
c) The wastes specified in 35 Ill. Adm. Code 721 as USEPA hazardous waste
numbers F032, F034, F035 are prohibited from underground injection.
d) Effective May 12, 1999, the The wastes specified in 35 Ill. Adm. Code 721 as
USEPA hazardous waste numbers F032, F034, F035 that are mixed with
radioactive wastes are prohibited from underground injection.
e) The wastes specified in 35 Ill. Adm. Code 721.132 as having the following
USEPA hazardous waste numbers are prohibited from underground injection:
K156, K157, K158, K159, K160, K161, P127, P128, P185, P188, P189, P190,
P191, P192, P194, P196, P197, P198, P199, P201, P202, P203, P204, P205,
U271, U277, U278, U279, U280, U364, U365, U366, U367, U372, U373, U375,
U376, U377, U378, U379, U381, U382, U383, U384, U385, U386, U387, U389,
U390, U391, U392, U393, U394, U395, U396, U400, U401, U402, U403, U404,
U407, U409, U410, and U411.
K156
K157
K158
K159
K160
K161
P127
P128
P185
P188
P189
P190
P191
P192
P194
P196
P197
P198
P199
P201
P202

106
P203
P204
P205
U271
U277
U278
U279
U280
U364
U365
U366
U367
U372
U373
U375
U376
U377
U378
U379
U381
U382
U383
U384
U385
U386
U387
U389
U390
U391
U392
U393
U394
U395
U396
U400
U401
U402
U403
U404
U407
U409
U410
U411
f) The wastes specified in 35 Ill. Adm. Code 721.132 as USEPA hazardous waste

107
number K088 is prohibited from underground injection.
g) The wastes specified in 35 Ill. Adm. Code 721 as having the following USEPA
hazardous waste numbers and Mixed TC/Radioactive wastes are prohibited from
underground injection: D018, D019, D020, D021, D022, D023, D024, D025,
D026, D027, D028, D029, D030, D031, D032, D033, D034, D035, D036, D037,
D038, D039, D040, D041, D042, and D043.
D018
D019
D020
D021
D022
D023
D024
D025
D026
D027
D028
D029
D030
D031
D032
D033
D034
D035
D036
D037
D038
D039
D040
D041
D042
D043
h) The wastes specified in 35 Ill. Adm. Code 721.132 as USEPA hazardous waste
number K140, and in 35 Ill. Adm. Code 721.133(f) as USEPA hazardous waste
number U408 are prohibited from underground injection.This subsection
corresponds with 40 CFR 148.18(h), which USEPA has removed and marked
“reserved.” This statement maintains structural consistency with the federal
regulations.
i) Effective February 8, 1999, the The wastes specified in 35 Ill. Adm. Code 721.132
as USEPA hazardous waste numbers K169 through K172 are prohibited from
underground injection.

108
(Source: Amended at 24 Ill. Reg. ________, effective ______________________)
IT IS SO ORDERED.
I, Dorothy M. Gunn, Clerk of the Illinois Pollution Control Board, do hereby certify that
the above opinion and order was adopted on the 7th day of December 2000 by a vote of
7-0.
Dorothy M. Gunn, Clerk
Illinois Pollution Control Board

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