Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 742 - TIERED APPROACH TO CORRECTIVE ACTION OBJECTIVES › Subpart L - BUILDING CONTROL TECHNOLOGIES › Appendix B - Tier 1 Illustrations and Tables › Table E - Tier 1 Groundwater Remediation Objectives for the Groundwater Component of the Groundwater Ingestion Route

Current through Register Vol. 48, No. 28, July 12, 2024
Groundwater Remediation
								Objective
CAS No.
Chemical Name
Class I
(mg/L)
Class II
(mg/L)
Organics
83-32-9
Acenaphthene
0.42
2.1
67-64-1
Acetone
6.3
6.3
15972-60-8
Alachlor
0.002c
0.01c
116-06-3
Aldicarb
0.003c
0.015c
309-00-2
Aldrin
0.014a
0.07
120-12-7
Anthracene
2.1
10.5
1912-24-9
Atrazine
0.003c
0.015c
71-43-2
Benzene
0.005c
0.025c
56-55-3
Benzo(a)anthracene
0.00013a
0.00065
205-99-2
Benzo(b)fluoranthene
0.00018a
0.0009
207-08-9
Benzo(k)fluroanthene
0.00017a
0.00085
50-32-8
Benzo(a)pyrene
0.0002a,c
0.002c
65-85-0
Benzoic Acid
28
28
111-44-4
Bis(2-chloroethyl)ether
0.01a
0.01
117-81-7
Bis(2-ethylhexyl)phthalate
								(Di(2-ethylhexyl)phthalate)
0.006c
0.06c
75-27-4
Bromodichloromethane (Dichlorobromomethane)
0.0002a
0.0002
75-25-2
Bromoform
0.001a
0.001
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
0.04c
0.2c
75-15-0
Carbon disulfide
0.7
3.5
56-23-5
Carbon tetrachloride
0.005c
0.025c
57-74-9
Chlordane
0.002c
0.01c
Groundwater Remediation Objective
CAS No.
Chemical Name
Class I
(mg/L)
Class II
(mg/L)
106-47-8
4-Chloroaniline (p-Chloroaniline)
0.028
0.028
108-90-7
Chlorobenzene (Monochlorobenzene)
0.1c
0.5c
124-48-1
Chlorodibromomethane (Dibromochloromethane)
0.14
0.14
67-66-3
Chloroform
0.0002a
0.001
95-57-8
2-Chlorophenol (pH 4.9 -7.3)
0.035
0.175
2-Chlorophenol (pH 7.4 -8.0)
0.035
0.035
218-01-9
Chrysene
0.0015a
0.0075
94-75-7
2,4-D
0.07c
0.35c
75-99-0
Dalapon
0.2c
2.0c
72-54-8
DDD
0.014a
0.07
72-55-9
DDE
0.01a
0.05
50-29-3
DDT
0.006a
0.03
53-70-3
Dibenzo(a,h)anthracene
0.0003a
0.0015
96-12-8
1,2-Dibromo-3-chloropropane
0.0002c
0.0002c
106-93-4
1,2-Dibromoethane (Ethylene dibromide)
0.00005c
0.0005c
84-74-2
Di-n-butyl phthalate
0.7
3.5
95-50-1
1,2-Dichlorobenzene (o - Dichlorobenzene)
0.6c
1.5c
106-46-7
1,4-Dichlorobenzene (p - Dichlorobenzene)
0.075c
0.375c
91-94-1
3,3'-Dichlorobenzidine
0.02a
0.1
75-34-3
1,1-Dichloroethane
0.7
3.5
107-06-2
1,2-Dichloroethane (Ethylene dichloride)
0.005c
0.025c
75-35-4
1,1-Dichloroethyleneb
0.007c
0.035c
156-59-2
cis-1,2-Dichloroethylene
0.07c
0.2c
156-60-5
trans-1,2-Dichloroethylene
0.1c
0.5c
120-83-2
2,4-Dichlorophenol
0.021
0.021
78-87-5
1,2-Dichloropropane
0.005c
0.025c
542-75-6
1,3-Dichloropropene
(1,3-Dichloropropylene, cis + trans)
0.001a
0.005
Groundwater Remediation Objective
CAS No.
Chemical Name
Class I
(mg/L)
Class II
(mg/L)
60-57-1
Dieldrin
0.009a
0.045
84-66-2
Diethyl phthalate
5.6
5.6
105-67-9
2,4-Dimethylphenol
0.14
0.14
51-28-5
2,4-Dinitrophenol
0.014
0.014
121-14-2
2,4-Dinitrotoluene
0.00002a
0.00002
606-20-2
2,6-Dinitrotoluene
0.00031a
0.00031
88-85-7
Dinoseb
0.007c
0.07c
117-84-0
Di-n-octyl phthalate
0.14
0.7
115-29-7
Endosulfan
0.042
0.21
145-73-3
Endothall
0.1c
0.1c
72-20-8
Endrin
0.002c
0.01c
100-41-4
Ethylbenzene
0.7c
1.0c
206-44-0
Fluoranthene
0.28
1.4
86-73-7
Fluorene
0.28
1.4
76-44-8
Heptachlor
0.0004c
0.002c
1024-57-3
Heptachlor epoxide
0.0002c
0.001c
118-74-1
Hexachlorobenzene
0.00006a
0.0003
319-84-6
alpha-HCH (alpha-BHC)
0.00011a
0.00055
58-89-9
gamma-HCH (Lindane)
0.0002c
0.001c
77-47-4
Hexachlorocyclopentadiene
0.05c
0.5c
67-72-1
Hexachloroethane
0.007
0.035
193-39-5
Indeno(1,2,3-c,d)pyrene
0.00043a
0.00215
78-59-1
Isophorone
1.4
1.4
72-43-5
Methoxychlor
0.04c
0.2c
74-83-9
Methyl bromide (Bromomethane)
0.0098
0.049
75-09-2
Methylene chloride
(Dichloromethane)
0.005c
0.05c
95-48-7
2-Methylphenol (o-Cresol)
0.35
0.35
91-20-3
Naphthalene
0.14
0.22
98-95-3
Nitrobenzeneb
0.0035
0.0035
Groundwater Remediation
								Objective
CAS No.
Chemical Name
Class I
(mg/L)
Class II
(mg/L)
86-30-6
N-Nitrosodiphenylamine
0.0032a
0.016
621-64-7
N-Nitrosodi-n-propylamine
0.0018a
0.0018
87-86-5
Pentachlorophenol
0.001c
0.005c
108-95-2
Phenol
0.1c
0.1c
1918-02-1
Picloram
0.5c
5.0c
1336-36-3
Polychlorinated biphenyls (PCBs)
0.0005c
0.0025c
129-00-0
Pyrene
0.21
1.05
122-34-9
Simazine
0.004c
0.04c
100-42-5
Styrene
0.1c
0.5c
93-72-1
2,4,5-TP (Silvex)
0.05c
0.25c
127-18-4
Tetrachloroethylene (Perchloroethylene)
0.005c
0.025c
108-88-3
Toluene
1.0c
2.5c
8001-35-2
Toxaphene
0.003c
0.015c
120-82-1
1,2,4-Trichlorobenzene
0.07c
0.7c
71-55-6
1,1,1-Trichloroethaneb
0.2c
1.0c
79-00-5
1,1,2-Trichloroethane
0.005c
0.05c
79-01-6
Trichloroethylene
0.005c
0.025c
95-95-4
2,4,5-Trichlorophenol (pH 4.9-7.8)
0.7
3.5
2,4,5-Trichlorophenol (pH 7.9 -8.0)
0.7
0.7
88-06-2
2,4,6-Trichlorophenol (pH 4.9-6.8)
0.01a
0.05
2,4,6-Trichlorophenol (pH 6.9 -8.0)
0.01
0.01
108-05-4
Vinyl acetate
7.0
7.0
75-01-4
Vinyl chloride
0.002c
0.01c
1330-20-7
Xylenes (total)
10.0c
10.0c
Groundwater Remediation
								Objective
CAS No.
Chemical Name
Class I
(mg/L)
Class II
(mg/L)
Inorganics
7440-36-0
Antimony
0.006c
0.024c
7440-38-2
Arsenic
0.05c
0.2c
7440-39-3
Barium
2.0c
2.0c
7440-41-7
Beryllium
0.004c
0.5c
7440-42-8
Boron
2.0c
2.0c
7440-43-9
Cadmium
0.005c
0.05c
7440-70-2
Calcium
---d
---d
16887-00-6
Chloride
200c
200c
7440-47-3
Chromium, total
0.1c
1.0c
18540-29-9
Chromium, ion, hexavalent
---
---
7440-48-4
Cobalt
1.0c
1.0c
7440-50-8
Copper
0.65c
0.65c
57-12-5
Cyanide
0.2c
0.6c
7782-41-4
Fluoride
4.0c
4.0c
15438-31-0
Iron
5.0c
5.0c
7439-92-1
Lead
0.0075c
0.1c
7439-95-4
Magnesium
---d
---d
7439-96-5
Manganese
0.15c
10.0c
7439-97-6
Mercury
0.002c
0.01c
7440-02-0
Nickel
0.1c
2.0c
14797-55-8
Nitrate as N
10.0c
100c
7723-14-0
Phosphorus
---d
---d
7440-09-7
Potassium
---d
---d
7782-49-2
Selenium
0.05c
0.05c
7440-22-4
Silver
0.05c
---
7440-23-5
Sodium
---d
---d
14808-79-8
Sulfate
400c
400c
Groundwater Remediation Objective
CAS No.
Chemical Name
Class I
(mg/L)
Class II
(mg/L)
7440-28-0
Thallium
0.002c
0.02c
7440-62-2
Vanadiumb
0.049
0.1
7440-66-6
Zinc
5.0c
10c
Chemical Name and Groundwater Remediation Objective
					 Notations
a The groundwater remediation
					 objective is equal to the ADL for carcinogens according to the procedures
					 specified in 35 Ill. Adm. Code 620.
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.
d This chemical is included in
					 the Total Dissolved Solids (TDS) Groundwater Quality Standard of 1,200 mg/L
					 pursuant to 35 Ill. Adm. Code
					 620.410
					 for Class I Groundwater or 35 Ill. Adm. Code
					 620.420
					 for Class II Groundwater.