ILLINOIS POLLUTION CONTROL BOARD
April 17, 1997
IN THE MATTER OF:
TIERED APPROACH TO CORRECTIVE
ACTION OBJECTIVES: AMENDMENTS
TO 35 ILL. ADM. CODE 742.505 and
742.900.
)
)
)
)
)
)
R97-12 (B)
(Rulemaking - Land)
Proposed Rule. First Notice.
OPINION AND ORDER OF THE BOARD (by M. McFawn and J. Yi):
The rules proposed today for first notice are intended to fulfill the mandates of Title
XVII of the Environmental Protection Act (Act) (415 ILCS 5/1
et seq
.(1994)). Title XVII
was added to the Act by P.A. 89-431, which was signed and became effective on December
15, 1995. Pursuant to Section 58.11(d) of Title XVII, the Agency was required to propose
rules to fully implement the mandates of Title XVII by September 16, 1996 and the Board is
required to conduct and complete rulemaking on the same in accordance with the Act and the
Administrative Procedure Act no later than June 16, 1997. On September 16, 1996, the
Illinois Environmental Protection Agency (Agency) filed a proposal to add a new Part 742 to
the Board’s rules, which would create a tiered approach to establishing corrective action
objectives (also known as TACO). On November 7, 1996, the Board adopted the proposal for
first notice publication in the
Illinois Register
, which appeared at 20 Ill. Reg. 15429
(
December 6, 1996
)
. Today, the Board adopted the proposal as modified based upon the
hearings and public comments for second notice under Docket A to fulfill this mandate. The
Board anticipates that the Joint Committee on Administrative Rules will complete its review in
May, and the Board will adopt the rules as final on or before June 16, 1997. However, during
the public comment period under first notice, the Agency raised some issues which could not
be resolved based upon the record developed during first notice. There is not sufficient time
to resolve these issues and meet the statutory deadline for adopting rules to implement the
TACO process. Accordingly, the Board is proposing today for first notice amendments to
certain rules the Board has adopted today for second notice and anticipates adopting as final on
June 16, 1997. Additionally, the Board sends this matter to hearing and directs the hearing
officer to set and conduct hearings in this matter on an expedited schedule.
To date in this rulemaking, R97-12(a), five public hearings were held, followed by an
extended public comment period. The Board received 22 public comments during that period
of time. On February 3, 1997, the Agency filed an Errata Sheet No.3 requesting, among
other things, that new language be added at Sections 742.505(b)(3)(A) and (B) and 742.900(f)
to the proposed TACO rules regarding mixtures of similar-acting substances. The Agency also
proposed that Section 742.610, Chemicals with Cumulative Noncarcinogenic Effects, which
was originally in its September 16, 1996 proposal, be relocated to Section 742.720. On
February 25, 1997, the Agency proposed new language at Section 742.505(b)(3)(C), in
addition to that proposed at subsections (3)(A) and (3)(B) of that Section in its February 3,
2
1997 filing. The new language parallels that proposed at Section 742.610 for Tier 2 and sets
forth the requirements for demonstrating under Tier 1 that mixture of similar acting chemicals
in Class I groundwater do not present unacceptable risks to users of the groundwater.
These proposed amendments and the Agency’s explanation of the same were all entered
into the record after the close of hearings. The Agency’s reasons for these proposed changes
were contained in its “Final Comments” filed on February 20, 1997. (PC 10 at 11.)
Thereafter, several commentators objected to these amendments as being unsupported in the
record developed at hearing. (See PC 3, 8, 20 and 21.)
Given the substantive nature of the Agency’s requested amendments and the lack of
support for the same in the record, the Board has decided to open a Docket B in this
rulemaking to address the new language proposed by the Agency regarding mixtures of
similar-acting substances. In Docket A, the Board adopted today for second notice the
language proposed by the Agency bifurcating the mixture rule under Tier 2 to clarify that it is
applicable to soil and groundwater remediation objectives. (See Errata Sheet No. 3.) That
new language appears in Sections 742.720 and 742.805(c). At first notice, these requirements
were proposed at Section 742.610. The Board also adopted some of the language proposed by
the Agency at Section 742.505(b) to the effect that the mixture rule will apply to the
groundwater objectives under Tier 1 for noncarcinogens only. Under this docket, we will
consider whether this rule should apply to soil remediation objectives under Tier 1, and
whether the rule should apply to carcinogenic contaminants of concern as well as
noncarcinogenic contaminants under Tiers 1 and 2. The Board will schedule this matter for
hearing at which the Agency and the public will be invited to testify with regard to this
proposal.
The attached order includes new language and amendments to Part 742, as adopted
today for second notice in Docket A. Therefore, these amendments are proposed
modifications to the TACO rules which are currently only proposed rules. The Board
anticipates that Docket A will be adopted by the Board as final on or about June 6, 1997.
Therefore the amendatory language proposed in this docket will be adopted, as modified
pursuant to public hearings and public comment, for second notice and as final after the rules
in Docket A are adopted as final. Accordingly, the reader should be aware that unlike an
ordinary first notice proposal which proposes amendments to existing rules or entirely new
rules, these amendments are proposed to amend proposed Part 742 in the form we reasonably
believe it will read when it is adopted as final.
By today’s action, the Board sends this proposal to first notice, pursuant to the
Administrative Procedure Act (5 ILLS 100/1-1
et seq.
(1994)), and directs the Clerk of the
Board to cause the publication of the first notice proposal in the
Illinois Register
. Also, by
today’s action the Board sets this matter for hearing.
3
ORDER
The Board hereby proposes for first notice the following new rules at 35 Ill. Adm.
Code 742. The Clerk of the Board is directed to file these proposed rules with the Secretary of
State in the
Illinois Register
. The Board hereby directs this matter to hearing on an expedited
schedule.
TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE G: WASTE DISPOSAL
CHAPTER I: POLLUTION CONTROL BOARD
SUBCHAPTER f: RISK BASED CLEANUP OBJECTIVES
PART 742
TIERED APPROACH TO CORRECTIVE ACTION OBJECTIVES
SUBPART A: INTRODUCTION
Section
742.100
Intent and Purpose
742.105
Applicability
742.110
Overview of Tiered Approach
742.115
Key Elements
742.120
Site Characterization
SUBPART B: GENERAL
Section
742.200
Definitions
742.205
Severability
742.210
Incorporations by Reference
742.215
Determination of Soil Attenuation Capacity
742.220
Determination of Soil Saturation Limit
742.225
Demonstration of Compliance with Remediation Objectives
742.230
Agency Review and Approval
SUBPART C: EXPOSURE ROUTE EVALUATIONS
Section
742.300
Exclusion of Exposure Route
742.305
Contaminant Source and Free Product Determination
742.310
Inhalation Exposure Route
742.315
Soil Ingestion Exposure Route
742.320
Groundwater Ingestion Exposure Route
4
SUBPART D: DETERMINING AREA BACKGROUND
Section
742.400
Background
742.405
Determination of Area Background for Soil
742.410
Determination of Area Background for Groundwater
742.415
Use of Area Background Concentrations
SUBPART E: TIER 1 EVALUATION
Section
742.500
Tier 1 Overview
742.505
Tier 1 Soil and Groundwater Remediation Objectives
742.510
Tier 1 Remediation Objectives Tables
SUBPART F: TIER 2 GENERAL EVALUATION
Section
742.600
Tier 2 Overview
742.605
Land Use
742.610
Chemical and Site Properties
SUBPART G: TIER 2 SOIL EVALUATION
Section
742.700
Tier 2 Soil Overview
742.705
Parameters for Soil Remediation Objective Equations
742.710
SSL Soil Equations
742.715
RBCA Soil Equations
742.720
Chemicals with Cumulative Noncarcinogenic Effects
SUBPART H: TIER 2 GROUNDWATER EVALUATION
Section
742.800
Tier 2 Groundwater Overview
742.805
Tier 2 Groundwater Remediation Objectives
742.810
Calculations to Predict Impacts from Remaining Groundwater Contamination
SUBPART I: TIER 3 EVALUATION
Section
742.900
Tier 3 Overview
742.905
Modifications of Parameters
742.910
Alternative Models
742.915
Formal Risk Assessments
5
742.920
Impractical Remediation
742.925
Exposure Routes
742.930
Derivation of Toxicological Data
SUBPART J: INSTITUTIONAL CONTROLS
Section
742.1000
Institutional Controls
742.1005
No Further Remediation Letters
742.1010
Restrictive Covenants, Deed Restrictions and Negative Easements
742.1015
Ordinances
742.1020
Highway Authority Agreements
SUBPART K: ENGINEERED BARRIERS
Section
742.1100
Engineered Barriers
742.1105
Engineered Barrier Requirements
742.APPENDIX A General
Table A
Soil Saturation Limits (Csat) for Chemicals Whose Melting Point is Less
Than 30
0
C
Table B
Tolerance Factor (K)
Table C
Coefficients {AN-I+1} for W Test of Normality, for N=2(1)50
Table D
Percentage Points of the W Test for N=3(1)50
Table E
Chemicals with Noncarcinogenic Toxic Effects on Specific Target
Organs/Organ Systems or Similar Modes of Action
Table F
Chemicals with Carcinogenic Toxic Effects on Specific Target
Organs/Organ Systems or Similar Modes of Action
Table G
Concentrations of Inorganic Chemicals in Background Soils
ILLUSTRATION A Developing Soil Remediation Objectives Under the Tiered
Approach
ILLUSTRATION B Developing Groundwater Remediation Objectives Under the
Tiered Approach
742.APPENDIX B Tier 1 Tables and Illustrations
Table A
Tier 1 Soil Remediation Objectives for Residential Properties
Table B
Tier 1 Soil Remediation Objectives for Industrial/Commercial Properties
Table C
pH Specific Soil Remediation Objectives for Inorganics and Ionizing
Organics for the Soil Component of the Groundwater Ingestion Route
(Class I Groundwater)
Table D
pH Specific Soil Remediation Objectives for Inorganics and Ionizing
Organics for the Soil Component of the Groundwater Ingestion Route
(Class II Groundwater)
Table E
Tier 1 Groundwater Remediation Objectives for the Groundwater
Component of the Groundwater Ingestion Route
6
Table F
Values Used to Calculate the Tier 1 Soil Remediation Objectives for the
Soil Component of the Groundwater Ingestion Route
ILLUSTRATION A Tier 1 Evaluation
742.APPENDIX C Tier 2 Tables and Illustrations
Table A
SSL Equations
Table B
SSL Parameters
Table C
RBCA Equations
Table D
RBCA Parameters
Table E
Default Physical and Chemical Parameters
Table F
Methods for Determining Physical Soil Parameters
Table G
Error Function (erf)
Table H
Q/C Values by Source Area
Table I
Koc Values for Ionizing Organics as a Function of pH
Table J
Values to be Substituted for ks When Evaluating Inorganics as a Function
of pH
Table K
Parameter Estimates for Calculating Water-Filled Soil Porosity (θw)
ILLUSTRATION A Tier 2 Evaluation for Soil
ILLUSTRATION B Tier 2 Evaluation for Groundwater
ILLUSTRATION C US Department of Agriculture Soil Texture Classification
AUTHORITY: Implementing Sections 22.4, 22.12, Title XVI, and Title XVII and authorized
by Sections 27, 57.14, and 58.5 of the Environmental Protection Act [415 ILCS 5/22.4,
22.12, Title XVI and Title VII] (see P.A. 88-496, effective September 13, 1993 and P.A. 89-
0431, effective December 15, 1995).
SOURCE: Adopted at 21 Ill. Reg. ______________ , effective __________________.
NOTE: Capitalization indicates statutory language.
Section 742.505
Tier 1 Soil and Groundwater Remediation Objectives
a)
Soil
1)
Inhalation Exposure Route
A)
The Tier 1 soil remediation objectives for this exposure route
based upon residential property use are listed in Appendix B,
Table A.
B)
The Tier 1 soil remediation objectives for this exposure route
based upon industrial/commercial property use are listed in
Appendix B, Table B. Soil remediation objective determinations
relying on this table require use of institutional controls in
accordance with Subpart J.
7
2)
Ingestion Exposure Route
A)
The Tier 1 soil remediation objectives for this exposure route
based upon residential property use are listed in Appendix B,
Table A.
B)
The Tier 1 soil remediation objectives for this exposure route
based upon industrial/commercial property use are listed in
Appendix B, Table B. Soil remediation objective determinations
relying on this table require use of institutional controls in
accordance with Subpart J.
3)
Soil Component of the Groundwater Ingestion Route
A)
The Tier 1 soil remediation objectives for this exposure route
based upon residential property use are listed in Appendix B,
Table A.
B)
The Tier 1 soil remediation objectives for this exposure route
based upon industrial/commercial property use are listed in
Appendix B, Table B.
C)
The pH-dependent Tier 1 soil remediation objectives for
identified ionizable organics or inorganics for the soil component
of the groundwater ingestion exposure route (based on the total
amount of contaminants present in the soil sample results and
groundwater classification) are provided in Appendix B, Tables C
and D.
D)
Values used to calculate the Tier 1 soil remediation objectives for
this exposure route are listed in Appendix B, Table F.
4)
Evaluation of the dermal contact with soil exposure route is not required
under Tier 1.
b)
Groundwater
1)
The Tier 1 groundwater remediation objectives for the groundwater
component of the groundwater ingestion route are listed in Appendix B,
Table E.
2)
The Tier 1 groundwater remediation objectives for this exposure route
are given for Class I and Class II groundwaters, respectively.
8
3)
The requirements of 35 Ill. Adm. Code 620.615 regarding mixtures of
similar-acting chemicals shall be met for Class I groundwater at the point
of human exposure.
A)
Calculate the weighted average using the following equations:
Wave =
x
CUO
x
CUO
x
CUO
x
x
x
x
CUO
a
x
a
123
123
+
+
+
K
+
where:
Wave= Weighted Average
x1 through xa =
Concentration of each individual contaminant at
the location of concern. Note that, depending on
the target organ/mode of action, the actual number
of contaminants will range from 2 to 14.
CUOxa =
A Tier 1 remediation objective must be developed
for each xa.
ii)
If the value of the weighted average calculated in
accordance with the equations above is less than or equal
to 1.0, then the remediation objectives are met for those
chemicals.
ii)
If the value of the weighted average calculated in
accordance with the equations above is greater than 1.0,
then additional remediation must be carried out until the
level of contaminants remaining in the remediated area
have a weighted average calculated in accordance with the
equation above less than or equal to one;
B)
Divide each individual chemical's remediation objective by the
number of chemicals in that specific target organ group that were
detected at the site. Each of the contaminant concentrations at
the site is then compared to the remediation objectives that have
been adjusted to account for this potential additivity.
SOURCE: Adopted at 21 Ill. Reg. ______________ , effective __________________.
Section 742.900 Tier 3 Overview
a)
Tier 3 sets forth a flexible framework to develop remediation objectives outside
of the requirements of Tiers 1 and 2. Although Tier 1 evaluations and Tier 2
9
evaluations are not prerequisites to conduct Tier 3 evaluations, data from Tier 1
and Tier 2 can assist in developing remediation objectives under a Tier 3
evaluation.
b)
The level of detail required to adequately characterize a site depends on the
particular use of Tier 3. Tier 3 can require additional investigative efforts
beyond those described in Tier 2 to characterize the physical setting of the site.
However, in situations where remedial efforts have simply reached a physical
obstruction (e.g., a building), additional investigation may not be necessary for
a Tier 3 submittal.
c)
Situations that can be considered for a Tier 3 evaluation include, but are not
limited to:
1)
Modification of parameters not allowed under Tier 2;
2)
Use of models different from those used in Tier 2;
3)
Use of additional site data to improve or confirm predictions of exposed
receptors to contaminants of concern;
4)
Analysis of site-specific risks using formal risk assessment, probabilistic
data analysis, and sophisticated fate and transport models (e.g.,
requesting a target hazard quotient greater than 1 or a target cancer risk
greater than 1 in 1,000,000) ;
5)
Requests for site-specific remediation objectives because a "common
sense" assessment indicates further remediation is not practical (e.g., the
remaining contamination is under a structure such as a permanent
building);
6)
Incomplete human exposure pathway(s) not excluded under Subpart C;
7)
Use of toxicological-specific information not available from the sources
listed in Tier 2; and
8)
Land uses which are substantially different from the assumed residential
or industrial/commercial property uses of a site (e.g., a s site will be
used for recreation in the future and cannot be evaluated in Tiers 1 or 2).
9)
Requests for remediation objectives which exceed Tier 1 groundwater
remediation objectives so long as the following is demonstrated:
A)
TO THE EXTENT PRACTICAL, THE EXCEEDANCE OF THE
GROUNDWATER QUALITY STANDARD HAS BEEN
10
MINIMIZED AND BENEFICIAL USE APPROPRIATE TO THE
GROUNDWATER THAT WAS IMPACTED HAS BEEN
RETURNED; AND
B)
ANY THREAT TO HUMAN HEALTH OR THE ENVIRONMENT
HAS BEEN MINIMIZED. (Section 58.5(D)(4)(A))
d)
For requests of a target cancer risk ranging between 1 in 1,000,000 and 1 in
10,000 at the point of human exposure or a target hazard quotient greater than 1
at the point of human exposure, the requirements of Section 742.915 shall be
followed. Requests for a target cancer risk exceeding 1 in 10,000 at the point of
human exposure are not allowed.
e)
Requests for approval of a Tier 3 evaluation must be submitted to the Agency
for review under the program under which remediation is performed. When
reviewing a submittal under Tier 3, the Agency shall consider WHETHER THE
INTERPRETATIONS AND CONCLUSIONS REACHED ARE SUPPORTED
BY THE INFORMATION GATHERED. (Section 58.7(e)(1) of the Act) The
Agency shall approve a Tier 3 evaluation if the person submits the information
required under this Part and establishes through such information that public
health is protected and that specified risks to human health and the environment
have been minimized.
f)
Contaminants of concern which affect the same target organ, organ system
or similar mode of action shall be specifically addressed. At a minimum, the
chemical subject to this requirement are identified in Appendix A, Tables E and
F.
SOURCE: Adopted at 21 Ill. Reg. ______________ , effective __________________.
11
Section 742.APPENDIX B:
Tier 1 Tables and Illustrations
TABLE E:
Tier 1 Groundwater Remediation Objectives for the Groundwater Component of
the Groundwater Ingestion Route
Groundwater Remediation Objective
CAS No.
Chemical Name
Class I
(mg/L)
Class II
(mg/L)
83-32-9
Acenaphthene
0.42
2.1
67-64-1
Acetone
0.7
0.7
15972-60-8
Alachlor
0.002
c
0.01
c
116-06-3
Aldicarb
0.003
c
0.015
c
309-00-2
Aldrin
0.00004
a
0.0002
120-12-7
Anthracene
2.1
10.5
1912-24-9
Atrazine
0.003
c
0.015
c
71-43-2
Benzene
0.005
c
0.025
c
56-55-3
Benzo(
a
)anthracene
0.00013
a
0.00065
205-99-2
Benzo(
b
)fluoranthene
0.00018
a
0.0009
207-08-9
Benzo(
k
)fluroanthene
0.00017
a
0.00085
50-32-8
Benzo(
a
)pyrene
0.0002
a,c
0.002
c
111-44-4
Bis(2-chloroethyl)ether
0.01
a
0.01
117-81-7
Bis(2-ethylhexyl)phthalate
0.006
a,c
0.06
c
75-27-4
Bromodichloromethane
(Dichlorobromomethane)
0.00002
a
0.00002
75-25-2
Bromoform
0.0002
a
0.0002
71-36-3
Butanol
0.7
0.7
85-68-7
Butyl benzyl phthalate
1.4
7.0
86-74-8
Carbazole
---
---
1563-66-2
Carbofuran
0.04
c
0.2
c
75-15-0
Carbon disulfide
0.7
3.5
56-23-5
Carbon tetrachloride
0.005
c
0.025
c
57-74-9
Chlordane
0.002
c
0.01
c
Groundwater Remediation Objective
CAS No.
Chemical Name
Class I
(mg/L)
Class II
(mg/L)
108-90-7
Chlorobenzene
(Monochlorobenzene)
0.1
c
0.5
c
124-48-1
Chlorodibromomethane
(Dibromochloromethane)
0.14
0.14
67-66-3
Chloroform
0.00002
a
0.0001
12
218-01-9
Chrysene
0.0015
a
0.0075
94-75-7
2,4-D
0.07
c
0.35
c
75-99-0
Dalapon
0.2
c
2.0
c
72-54-8
DDD
0.00011
a
0.00055
72-55-9
DDE
0.00004
a
0.0002
50-29-3
DDT
0.00012
a
0.0006
53-70-3
Dibenzo(
a,h
)anthracene
0.0003
a
0.0015
96-12-8
1,2-Dibromo-3-chloropropane
0.0002
c
0.0002
c
106-93-4
1,2-Dibromoethane
(Ethylene dibromide)
0.00005
a,c
0.0005
c
84-74-2
Di-
n
-butyl phthalate
0.7
3.5
95-50-1
1,2-Dichlorobenzene
(
o
- Dichlorobenzene)
0.6
c
1.5
c
106-46-7
1,4-Dichlorobenzene
(
p
- Dichlorobenzene)
0.075
c
0.375
c
91-94-1
3,3'-Dichlorobenzidine
0.02
a
0.1
75-34-3
1,1-Dichloroethane
0.7
3.5
107-06-2
1,2-Dichloroethane
(Ethylene dichloride)
0.005
c
0.025
c
75-35-4
1,1-Dichloroethylene
b
0.007
c
0.035
c
156-59-2
cis
-1,2-Dichloroethylene
0.07
c
0.2
c
156-60-5
trans
-1,2-Dichloroethylene
0.1
c
0.5
c
78-87-5
1,2-Dichloropropane
0.005
c
0.025
c
542-75-6
1,3-Dichloropropene
(1,3-Dichloropropylene,
cis
+
trans
)
0.001
a
0.005
Groundwater Remediation Objective
CAS No.
Chemical Name
Class I
(mg/L)
Class II
(mg/L)
60-57-1
Dieldrin
0.00002
a
0.0001
84-66-2
Diethyl phthalate
5.6
5.6
121-14-2
2,4-Dinitrotoluene
a
0.00002
0.00002
606-20-2
2,6-Dinitrotoluene
a
0.0001
0.0001
88-85-7
Dinoseb
0.007
c
0.07
c
117-84-0
Di-
n
-octyl phthalate
0.14
0.7
115-29-7
Endosulfan
0.042
0.21
145-73-3
Endothall
0.1
c
0.1
c
72-20-8
Endrin
0.002
c
0.01
c
100-41-4
Ethylbenzene
0.7
c
1.0
c
206-44-0
Fluoranthene
0.28
1.4
86-73-7
Fluorene
0.28
1.4
13
76-44-8
Heptachlor
0.0004
c
0.002
c
1024-57-3
Heptachlor epoxide
0.0002
c
0.001
c
118-74-1
Hexachlorobenzene
0.00006
a
0.0003
319-84-6
alpha
-HCH (
alpha
-BHC)
0.00003
a
0.00015
58-89-9
gamma
-HCH (Lindane)
0.0002
c
0.001
c
77-47-4
Hexachlorocyclopentadiene
0.05
c
0.5
c
67-72-1
Hexachloroethane
0.007
0.035
193-39-5
Indeno(1,2,3-
c,d
)pyrene
0.00043
a
0.00215
78-59-1
Isophorone
1.4
1.4
72-43-5
Methoxychlor
0.04
c
0.2
c
74-83-9
Methyl bromide
(Bromomethane)
0.0098
0.049
75-09-2
Methylene chloride
(Dichloromethane)
0.005
c
0.05
c
91-20-3
Naphthalene
2
0.025
0.039
98-95-3
Nitrobenzene
2
0.0035
0.0035
Groundwater Remediation Objective
CAS No.
Chemical Name
Class I
(mg/L)
Class II
(mg/L)
1918-02-1
Picloram
0.5
c
5.0
c
1336-36-3
Polychlorinated biphenyls (PCBs)
n
0.0005
c
0.0025
c
129-00-0
Pyrene
0.21
1.05
122-34-9
Simazine
0.004
c
0.04
c
100-42-5
Styrene
0.1
c
0.5
c
93-72-1
2,4,5-TP
(Silvex)
0.05
c
0.25
c
127-18-4
Tetrachloroethylene
(Perchloroethylene)
0.005
c
0.025
c
108-88-3
Toluene
1.0
c
2.5
c
8001-35-2
Toxaphene
0.003
c
0.015
c
120-82-1
1,2,4-Trichlorobenzene
0.07
c
0.7
c
71-55-6
1,1,1-Trichloroethane
2
0.2
c
1.0
c
79-00-5
1,1,2-Trichloroethane
0.005
c
0.05
c
79-01-6
Trichloroethylene
0.005
c
0.025
c
108-05-4
Vinyl acetate
7.0
7.0
75-01-4
Vinyl chloride
0.002
c
0.01
c
1330-20-7
Xylenes (total)
10.0
c
10.0
c
Ionizable Organics
65-85-0
Benzoic Acid
28
28
106-47-8
4-Chloroaniline
0.028
0.028
14
(p
-Chloroaniline)
95-57-8
2-Chlorophenol
0.035
0.175
120-83-2
2,4-Dichlorophenol
0.021
0.021
105-67-9
2,4-Dimethylphenol
0.14
0.14
51-28-5
2,4-Dinitrophenol
0.014
0.014
95-48-7
2-Methylphenol
(
o
- Cresol)
0.35
0.35
86-30-6
N
-Nitrosodiphenylamine
0.01
a
0.05
Groundwater Remediation Objective
CAS No.
Chemical Name
Class I
(mg/L)
Class II
(mg/L)
621-64-7
N
-Nitrosodi-
n
-propylamine
0.01
a
0.01
87-86-5
Pentachlorophenol
0.001
a,c
0.005
c
108-95-2
Phenol
0.1
c
0.1
c
95-95-4
2,4,5-Trichlorophenol
0.7
3.5
88-06-2
2,4,6 Trichlorophenol
0.0064
a
0.032
Inorganics
7440-36-0
Antimony
0.006
c
0.024
c
7440-38-2
Arsenic
0.05
c
0.2
c
7440-39-3
Barium
2.0
c
2.0
c
7440-41-7
Beryllium
0.004
c
0.5
c
7440-42-8
Boron
2.0
c
2.0
c
7440-43-9
Cadmium
0.005
c
0.05
c
16887-00-6
Chloride
200
c
200
c
7440-47-3
Chromium, total
0.1
c
1.0
c
18540-29-9
Chromium, ion, hexavalent
---
---
7440-48-4
Cobalt
1.0
c
1.0
c
7440-50-8
Copper
0.65
c
0.65
c
57-12-5
Cyanide
0.2
c
0.6
c
7782-41-4
Fluoride
4.0
c
4.0
c
15438-31-0
Iron
5.0
c
5.0
c
7439-92-1
Lead
0.0075
c
0.1
c
7439-96-5
Manganese
0.15
c
10.0
c
7439-97-6
Mercury
0.002
c
0.01
c
7440-02-0
Nickel
0.1
c
2.0
c
14797-55-8
Nitrate as N
10.0
c
100
c
7782-49-2
Selenium
0.05
c
0.05
c
7440-22-4
Silver
0.05
c
---
14808-79-8
Sulfate
400
c
400
c
15
Groundwater Remediation Objective
CAS No.
Chemical Name
Class I
(mg/L)
Class II
(mg/L)
7440-28-0
Thallium
0.002
c
0.02
c
7440-62-2
Vanadium
2
0.049
---
7440-66-6
Zinc
5.0
c
10
c
Chemical Name and Groundwater Remediation Objective Notations
a
The groundwater Health Advisory concentration is equal to ADL for carcinogens.
b
Oral Reference Dose and/or Reference Concentration under review by USEPA. Listed values subject to change.
c
Value listed is also the Groundwater Quality Standard for this chemical pursuant to 35 Ill. Adm. Code 620.410 for
Class I Groundwater or 35 Ill. Adm. Code 620.420 for Class II Groundwater.
16
Section 742.APPENDIX A:
General
TABLE E:
Chemicals with Noncarcinogenic Toxic Effects on Specific Target Organs/Organ
Systems or Similar Modes of Action
Kidney
Cadmium (Ingestion only)
Chlorobenzene
1,1-Dichloroethane
Di-n-octyl phthalate
Ethylbenzene
Fluoranthene
Pyrene
Toluene
Vinyl acetate
Liver
Acetone
Butylbenzyl phthalate
1,1-Dichloroethylene
Chlorobenzene
Di-n-octyl phthalate
Endrin
Ethylbenzene
Fluoranthene
Nitrobenzene
Picloram
Styrene
2,4,5-TP (Silvex)
Toluene
2,4,5-Trichlorophenol
Central Nervous System
Butanol
Cyanide (amenable)
2,4-Dimethylphenol
Endrin
Manganese
2-Methylphenol
Mercury
Styrzene
Xylenes
Circulatory System
Antimony
Barium
2,4-D
cis-1,2-Dichloroethylene
Nitrobenzene
trans 1,2-Dichloroethylene
2,4-Dimethylphenol
Fluoranthene
Fluorene
Styrene
Zinc
Gastrointestinal System
Endothall
Hexachlorocyclopentadiene
Methyl bromide
Reproductive System
Barium
Boron
Carbon disulfide
2-Chlorophenol
1,2 Dibromo-3-Chloropropane (Inhalation only)
Dinoseb
Methoxychlor
Phenol
17
Cholinesterase Inhibition
Aldicarb
Carbofuran
Decreased Body Weight Gains
and Circulatory System Effects
Atrazine
Simazine
Adrenal Gland
Nitrobenzene
1,2,4-Trichlorobenzene
Respiratory System
1,2-Dichloropropane
Hexachlorocyclopentadiene
Methyl bromide
Vinyl acetate
Immune System
2,4-Dichlorophenol
p-Chloroaniline
18
Section 742.APPENDIX A: General
TABLE F:
Chemicals With Carcinogenic Toxic Effects on Specific Target Organs/Organ
Systems or Similar Modes of Action
Kidney
Bromodichloromethane
Chloroform
1,2-Dibromo-3-chloropropane
2,4-Dinitrotoluene
2,6-Dinitrotoluene
Hexachlorobenzene
Liver
Aldrin
Bix(2-chloroethyl)ether
Bis(2-ethylhexyl)phthalate
Carbazole
Carbon tetrachloride
Chlordane
Chloroform
DDD
DDE
DDT
1,2-Dibromo-3-chloropropane
1,2-Dibromoethane
3,30-Dichlorobenzidine
1,2-Dichloroethane
1,3-Dichloropropane (Ingestion only)
1,3-Dichloropropylene
Dieldrin
2,4-Dinitrotoluene
2,6-Dinitortoluene
Heptachlor
Heptachlor epoxide
Hexachlorobenzene
alpha-HCH
gamma-HCH (Lindane)
Methylene chloride
N-Nitrosodiphenylamine
N-Nitrosodi-n-propylamine
Pentachlorophenol
Tetrachloroethylene
Trichloroethylene
2,4,6-Trichlorophenol
Toxaphene
Vinyl chloride
Circulatory System
Benzene
2,4,6-Trichlorophenol
Gastrointestinal System
Benzo(a)anthracene
Benzo(b)fluoranthene
Benzo(k)fluoranthene
Benzo(a)pyrene
Chrysene
Dibenzo(a,h)anthracene
Indeno(1,2,3-c,d)pyrene
Bromodichloromethane
19
Bromoform
1,2-Dibromo-3-chloropropane
1,2-Dibromoethane
1,3-Dichloropropylene
Lung
Arsenic
Beryllium (Inhalation only)
Cadmium (Inhalation only)
Chromium, hexavalent (Inhalation only)
1,3-Dichloropropylene
Methylene chroride
N-Nitrosodi-n-propylamine
Vinyl chloride
Nasal Cavity
1,2-Dibromo-3-chloropropane
(Inhalation only)
1,2-Dibromoethane (Inhalation only)
N-Nitrosodi-n-propylamine
Bladder
3,30-Dichlorobenzidine
1,3-Dichloropropylene
N-Nitrosodiphenylamine
IT IS SO ORDERED.
I, Dorothy M. Gunn, Clerk of the Illinois Pollution Control Board, hereby certify that
the above opinion and order was adopted on the _____ day of ___________, 1997, by a vote
of ______________.
___________________________________
Dorothy M. Gunn, Clerk
Illinois Pollution Control Board