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 B - Tier 1 Soil Remediation Objectivesa for Industrial/Commercial Properties

Universal Citation: 35 IL Admin Code ยง B
Current through Register Vol. 48, No. 38, September 20, 2024

Exposure Route-Specific Values for Soils

Soil Component of the Groundwater Ingestion Exposure Route Values

Industrial-Commercial

Construction Worker

CAS No.

Chemical Name

Ingestion (mg/kg)

Inhalation (mg/kg)

Ingestion (mg/kg)

Inhalation (mg/kg)

Class I (mg/kg)

Class II (mg/kg)

ADL (mg/kg)

83-32-9

Acenaphthene

120,000b

-----c

120,000b

-----c

570b

2,900

*

67-64-1

Acetone

-----g

100,000d

-----g

100,000d

25b

25

*

15972-60-8

Alachloro

72e

-----c

1,600e

-----c

0.04

0.2

NA

116-06-3

Aldicarbo

2,000b

-----c

200b

-----c

0.013

0.07

NA

309-00-2

Aldrin

0.3e

6.6e

6.1b

9.3e

0.5e

2.5

0.94

120-12-7

Anthracene

610,000b

-----c

610,000b

-----c

12,000b

59,000

*

1912-24-9

Atrazineo

72,000b

-----c

7,100b

-----c

0.066

0.33

NA

71-43-2

Benzene

100e

1.6e

2,300e

2.2e

0.03

0.17

*

56-55-3

Benzo(a)anthracene

8e

-----c

170e

-----c

2

8

*

205-99-2

Benzo(b)fluoranthene

8e

-----c

170e

-----c

5

25

*

207-08-9

Benzo(k)fluroanthene

78e

-----c

1,700e

-----c

49

250

*

50-32-8

Benzo(a)pyrene

0.8e,x

-----c

17e

-----c

8

82

*

111-44-4

Bis(2-chloroethyl)ether

5e

0.47e

75e

0.66e

0.0004e,

0.0004

0.6 6

117-81-7

Bis(2-ethylhexyl)phthalate

410e

31,000d

4,100b

31,000d

3,600

31,000d

*

75-27-4

Bromodichloromethane (Dichlorobromomethane)

92e

3,000d

2,000e

3,000d

0.6

0.6

*

75-25-2

Bromoform

720e

100e

16,000e

140e

0.8

0.8

*

71-36-3

Butanol

200,000b

10,000d

200,000b

10,000d

17b

17

NA

85-68-7

Butyl benzyl phthalate

410,000b

930d

410,000b

930d

930d

930d

*

86-74-8

Carbazole

290e

-----c

6,200e

-----c

0.6e

2.8

NA

Exposure Route-Specific Values for Soils

Soil Component of the Groundwater Ingestion Exposure Route Values

Industrial- Commercial

Construction Worker

CAS No.

Chemical Name

Ingestion (mg/kg)

Inhalation (mg/kg)

Ingestion (mg/kg)

Inhalation (mg/kg)

Class I (mg/kg)

Class II (mg/kg)

ADL (mg/kg)

1563-66-2

Carbofurano

10,000b

-----c

1,000b

-----c

0.22

1.1

NA

75-15-0

Carbon disulfide

200,000b

720d

20,000b

9.0b

32b

160

*

56-23-5

Carbon tetrachloride

44e

0.64e

410b

0.90e

0.07

0.33

*

57-74-9

Chlordane

16 e

140 e

100 b

22b

10

48

*

106-47-8

4-Chloroaniline

(p-Chloroaniline)

8,200b

-----c

820b

-----c

0.7b

0.7

*

108-90-7

Chlorobenzene (Monochlorobenzene)

41,000b

210b

4,100b

1.3b

1

6.5

*

124-48-1

Chlorodibromomethane (Dibromochloromethane)

41,000b

1,300d

41,000b

1,300d

0.4

0.4

*

67-66-3

Chloroform

940e

0.54e

2,000b

0.76e

0.6

2.9

*

218-01-9

Chrysene

780e

-----c

17,000e

-----e

160

800

*

94-75-7

2,4-Do

20,000b

-----c

2,000b

-----c

1.5

7.7

*

75-99-0

Dalapono

61,000b

-----c

6,100b

-----c

0.85

8.5

*

72-54-8

DDD

24e

-----c

520e

-----c

16e

80

*

72-55-9

DDE

17e

-----c

370e

-----c

54e

270

*

50-29-3

DDT

17e

1,500e

100b

2,100e

32e

160

*

53-70-3

Dibenzo(a,h)anthracene

0.8e

-----c

17e

-----c

2

7.6

*

96-12-8

1,2-Dibromo-3-chloropropane

4e

17b

89e

0.11b

0.002

0.02

*

106-93-4

1,2-Dibromoethane (Ethylene dibromide)

2.9e

0.12e

62e

0.16e

0.0004

0.004

0.005

84-74-2

Di-n-butyl phthalate

200,000b

2,300d

200,000b

2,300d

2,300d

2,300d

*

95-50-1

1,2-Dichlorobenzene

(o - Dichlorobenzene)

180,000b

560d

18,000b

310b

17

43

*

106-46-7

1,4-Dichlorobenzene

(p - Dichlorobenzene)

-----c

17,000b

-----c

340b

2

11

*

Exposure Route-Specific Values for Soils

Soil Component of the Groundwater Ingestion Exposure Route Values

Industrial-

Commercial

Construction

Worker

CAS No.

Chemical Name

Ingestion (mg/kg)

Inhalation (mg/kg)

Ingestion (mg/kg)

Inhalation (mg/kg)

Class I (mg/kg)

Class II (mg/kg)

ADL (mg/kg)

91-94-1

3,3'-Dichlorobenzidine

13e

-----c

280e

-----c

0.007e

0.033

1.3

75-34-3

1,1-Dichloroethane

200,000b

1,700d

200,000b

130b

23b

110

*

107-06-2

1,2-Dichloroethane (Ethylene dichloride)

63e

0.70e

1,400e

0.99e

0.02

0.1

*

75-35-4

1,1-Dichloroethylene

100,000b

470b

10,000b

3.0b

0.06

0.3

*

156-59-2

cis-1,2-Dichloroethylene

20,000b

1,200d

20,000b

1,200d

0.4

1.1

*

156-60-5

trans-1,2-Dichloroethylene

41,000b

3,100d

41,000b

3,100d

0.7

3.4

*

78-87-5

1,2-Dichloropropane

84e

23b

1,800e

0.50b

0.03

0.15

*

542-75-6

1,3-Dichloropropene

(1,3-Dichloropropylene, cis + trans)

57e

2.1e

1,200e

0.39b

0.004e

0.02

0.005

60-57-1

Dieldrinn

0.4e

2.2e

7.8e

3.1e

0.004e

0.02

0.603

84-66-2

Diethyl phthalate

1,000,000b

2,000d

1,000,000b

2,000d

470b

470

*

105-67-9

2,4-Dimethylphenol

41,000b

-----c

41,000b

-----c

9b

9

*

121-14-2

2,4-Dinitrotoluene

8.4 e

-----c

180e

-----c

0.0008 e

0.0008

0.250

606-20-2

2,6-Dinitrotoluene

8.4e

-----c

180e

-----c

0.0007 e

0.0007

0.260

117-84-0

Di-n-octyl phthalate

41,000e

10,000d

4,100b

10,000d

10,000d

10,000d

*

115-29-7

Endosulfano

12,000b

-----c

1,200b

-----c

18b

90

*

145-73-3

Endothallo

41,000c

-----c

4,100b

-----c

0.4

0.4

NA

72-20-8

Endrin

610b

-----c

61b

-----c

1

5

*

100-41-4

Ethylbenzene

200,000b

400d

20,000b

58b

13

19

*

206-44-0

Fluoranthene

82,000b

-----c

82,000b

-----c

4,300b

21,000

*

86-73-7

Fluorene

82,000b

-----c

82,000b

-----c

560b

2,800

*

76-44-8

Heptachlor

1e

11e

28e

16e

23

110

*

Exposure Route-Specific Values for Soils

Soil Component of the Groundwater Ingestion Exposure Route Values

Industrial-

Commercial

Construction

Worker

CAS No.

Chemical Name

Ingestion (mg/kg)

Inhalation (mg/kg)

Ingestion (mg/kg)

Inhalation (mg/kg)

Class I (mg/kg)

Class II (mg/kg)

ADL (mg/kg)

1024-57-3

Heptachlor epoxide

0.6e

9.2e

2.7b

13e

0.7

3.3

1.005

118-74-1

Hexachlorobenzene

4e

1.8e

78e

2.6e

2

11

*

319-84-6

alpha-HCH (alpha-BHC)

0.9e

1.5e

20e

2.1e

0.0005e

0.003

0.0074

58-89-9

gamma-HCH (Lindane)n

4e

-----c

96e

-----c

0.009

0.047

*

77-47-4

Hexachlorocyclopentadiene

14,000b

16b

14,000b

1.1b

400

2,200d

*

67-72-1

Hexachloroethane

2,000b

-----c

2,000b

-----c

0.5b

2.6

*

193-39-5

Indeno(1,2,3-c,d)pyrene

8e

-----c

170e

-----c

14

69

*

78-59-1

Isophorone

410,000b

4,600d

410,000b

4,600d

8b

8

*

72-43-5

Methoxychloro

10,000b

-----c

1,000b

-----c

160

780

*

74-83-9

Methyl bromide (Bromomethane)

2,900b

15b

1,000b

3.9b

0.2b

1.2

*

75-09-2

Methylene chloride (Dichloromethane)

760e

24e

12,000b

34e

0.02e

0.2

*

95-48-7

2-Methylphenol

(o - Cresol)

100,000b

-----c

100,000b

-----c

15b

15

*

86-30-6

N-Nitrosodiphenylamine

1,200e

-----c

25,000e

-----c

1e

5.6

*

621-64-7

N-Nitrosodi-n-propylamine

0.8e

-----c

18e

-----c

0.00005e

0.00005

0.0018

91-20-3

Naphthalene

41,000b

270b

4,100b

1.8b

12b

18

*

98-95-3

Nitrobenzene

1,000b

140b

1,000b

9.4b

0.1b

0.1

0.26

108-95-2

Phenol

610,000

-----c

61,000

-----c

100b

100

*

1918-02-1

Picloramo

140,000b

-----c

14,000b

-----c

2

20

NA

1336-36-3

Polychlorinated biphenyls (PCBs)n

1h

-----c,h

1h

-----c,h

-----h

-----h

*

129-00-0

Pyrene

61,000b

-----c

61,000b

-----c

42,000b

21,000

*

Exposure Route-Specific Values for Soils

Soil Component of the Groundwater Ingestion Exposure Route Values

Industrial-

Commercial

Construction

Worker

CAS No.

Chemical Name

Ingestion (mg/kg)

Inhalation (mg/kg)

Ingestion (mg/kg)

Inhalation (mg/kg)

Class I (mg/kg)

Class II (mg/kg)

ADL (mg/kg)

122-34-9

Simazineo

10,000b

-----c

1,000b

-----c

0.04

0.37

NA

100-42-5

Styrene

410,000b

1,500d

41,000b

430b

4

18

*

127-18-4

Tetrachloroethylene (Perchloroethylene)

110e

20e

2,400e

28e

0.06

0.3

*

108-88-3

Toluene

410,000b

650d

410,000b

42b

12

29

*

8001-35-2

Toxaphenen

5.2e

170e

110e

240e

31

150

*

120-82-1

1,2,4-Trichlorobenzene

20,000b

3,200d

2,000b

920b

5

53

*

71-55-6

1,1,1-Trichloroethane

-----c

1,200d

-----c

1,200d

2

9.6

*

79-00-5

1,1,2-Trichloroethane

8,200b

1,800d

8,200b

1,800d

0.02

0.3

*

79-01-6

Trichloroethylene

520e

8.9e

1,200b

12e

0.06

0.3

*

108-05-4

Vinyl acetate

1,000,000b

1,600b

200,000b

10b

170b

170

*

75-01-4

Vinyl chloride

7.9e

1.1e

170e

1.1b

0.01

0.07

*

108-38-3

m-Xylene

410,000b

420d

41,000b

6.4b

210

210

*

95-47-6

o-Xylene

410,000b

410d

41,000b

6.5b

190

190

*

106-42-3

p-Xylene

410,000b

460d

41,000b

5.9b

200

200

*

1330-20-7

Xylenes (total)

410,000b

320d

41,000b

5.6b

150

150

*

Exposure Route-Specific Values for Soils

Soil Component of the Groundwater Ingestion Exposure Route Values

Industrial-

Commercial

Construction

Worker

CAS No.

Chemical Name

Ingestion (mg/kg)

Inhalation (mg/kg)

Ingestion (mg/kg)

Inhalation (mg/kg)

Class I (mg/kg)

Class II (mg/kg)

ADL (mg/kg)

Ionizable Organics

65-85-0

Benzoic Acid

1,000,000b

-----c

820,000b

-----c

400b,i

400i

*

95-57-8

2-Chlorophenol

10,000b

53,000d

10,000b

53,000d

4b,i

20i

*

120-83-2

2,4-Dichlorophenol

6,100b

-----c

610b

-----c

1b,i

1i

*

51-28-5

2,4-Dinitrophenol

4,100b

-----c

410b

-----c

0.2b,i

0.2i

3.3

88-85-7

Dinosebo

2,000b

-----c

200b

-----c

0.34b,i

3.4i

*

Exposure Route-Specific Values for Soils

Soil Component of the Groundwater Ingestion Exposure Route Values

Industrial-

Commercial

Construction

Worker

CAS No.

Chemical Name

Ingestion (mg/kg)

Inhalation (mg/kg)

Ingestion (mg/kg)

Inhalation (mg/kg)

Class I (mg/kg)

Class II (mg/kg)

ADL (mg/kg)

87-86-5

Pentachlorophenol

24e,j

-----c

520e,j

-----c

0.03i

0.14i

*

93-72-1

2,4,5-TP (Silvex)

16,000b

-----c

1,600b

-----c

11i

55i

*

95-95-4

2,4,5-Trichlorophenol

200,000b

-----c

200,000b

-----c

270b,i

1,400i

*

88-06-2

2,4,6-Trichlorophenol

520e

390e

11,000e

540e

0.2e,i

0.77i

0.66

Exposure Route-Specific Values for Soils

Soil Component of the Groundwater Ingestion Exposure Route Values

Industrial-

Commercial

Construction

Worker

CAS No.

Chemical Name

Ingestion (mg/kg)

Inhalation (mg/kg)

Ingestion (mg/kg)

Inhalation (mg/kg)

Class I (mg/L)

Class II (mg/L)

ADL (mg/kg)

Inorganics

7440-36-0

Antimony

820b

-----c

82b

-----c

0.006m

0.024m

*

7440-38-2

Arsenicl,n

---t

1,200e

61b

25,000e

0.05m

0.2m

*

7440-39-3

Barium

140,000b

910,000b

14,000b

870,000b

2.0m

2.0m

*

7440-41-7

Beryllium

4,100b

2,100e

410b

44,000e

0.004m

0.5m

*

7440-42-8

Boron

410,000b

---c

41,000b

---c

2.0m

2.0m

*

7440-43-9

Cadmiuml,n

2,000b,r

2,800e

200b,r

59,000e

0.005m

0.05m

*

7440-70-2

Calciumn

---g

---c

---g

---c

---c

---c

*

16887-00-6

Chloride

-------c

-----c

-----c

-----c

200m

200m

*

7440-47-3

Chromium, total

6,100 b

420e

4,100b

690b

0.1m

1.0m

*

16065-83-1

Chromium, ion, trivalent

1,000,000b

-----c

310,000b

-----c

-----g

-----g

*

18540-29-9

Chromium, ion, hexavalent

6,100b

420e

4,100b

690b

-----

-----

*

7440-48-4

Cobalt

120,000b

-----c

12,000b

-----c

1.0m

1.0m

*

7440-50-8

Coppern

82,000b

-----c

8,200b

-----c

0.65m

0.65m

*

57-12-5

Cyanide (amenable)

41,000b

-----c

4,100b

-----c

0.2q,m

0.6q,m

*

7782-41-4

Fluoride

120,000b

-----c

12,000b

-----c

4.0m

4.0m

*

15438-31-0

Iron

-----c

-----c

-----c

-----c

5.0m

5.0m

*

7439-92-1

Lead

800y

-----c

700y

-----c

0.0075m

0.1m

*

7439-95-4

Magnesiumn

---g

---c

730,000

---c

---c

---c

*

7439-96-5

Manganese

41,000b,w

91,000b

4,100b,w

8,700b

0.15m

10.0m

*

7439-97-6

Mercuryl,n,s

610b

16b

61b

0.1b

0.002m

0.01m

*

7440-02-0

Nickell

41,000b

21,000e

4,100b

440,000e

0.1m

2.0m

*

14797-55-8

Nitrate as Np

1,000,000b

-----c

330,000b

-----c

10.0q

100q

*

7723-14-0

Phosphorusn

---g

---c

---g

---c

---c

---c

*

7440-09-7

Potassiumn

---g

---c

---g

---c

---c

---c

*

7782-49-2

Seleniuml,n

10,000b

-----c

1,000b

-----c

0.05m

0.05m

*

Exposure Route-Specific Values for Soils

Soil Component of the Groundwater Ingestion Exposure Route Values

Industrial-

Commercial

Construction

Worker

CAS No.

Chemical Name

Ingestion (mg/kg)

Inhalation (mg/kg)

Ingestion (mg/kg)

Inhalation (mg/kg)

Class I (mg/kg)

Class II (mg/kg)

ADL (mg/kg)

7440-22-4

Silver

10,000b

-----c

1,000b

-----c

0.05m

-----

*

7440-23-5

Sodiumn

---g

---c

---g

---c

---c

---c

*

14808-79-8

Sulfate

-----c

-----c

-----c

-----c

400m

400m

*

7440-28-0

Thallium

160b,u

-----c

160b,u

-----c

0.002m

0.02m

*

7440-62-2

Vanadium

14,000b

-----c

1,400b

-----c

0.049m

0.1m

*

7440-66-6

Zincl

610,000b

-----c

61,000b

-----c

5.0m

10m

*

"*" Indicates that the ADL is less than or equal to the specified remediation objective.

NA means Not Available; no PQL or EQL available in USEPA analytical methods.

Chemical Name and Soil Remediation Objective Notations (2nd, 5th thru 8th Columns)

a Soil remediation objectives based on human health criteria only.

b Calculated values correspond to a target hazard quotient of 1.

c No toxicity criteria available for this route of exposure.

d Soil saturation concentration (C[sat]) = the concentration at which the absorptive limits of the soil particles, the solubility limits of the available soil moisture, and saturation of soil pore air have been reached. Above the soil saturation concentration, the assumptions regarding vapor transport to air and/or dissolved phase transport to groundwater (for chemicals which are liquid at ambient soil temperatures) have been violated, and alternative modeling approaches are required.

e Calculated values correspond to a cancer risk level of 1 in 1,000,000.

g Chemical-specific properties are such that this route is not of concern at any soil contaminant concentration.

h40 CFR 761 contains applicability requirements and methodologies for the development of PCB remediation objectives. Requests for approval of a Tier 3 evaluation must address the applicability of 40 CFR 761.

i Soil remediation objective for pH of 6.8. If soil pH is other than 6.8, refer to Appendix B, Tables C and D in this Part.

j Ingestion soil remediation objective adjusted by a factor of 0.5 to account for dermal route.

I Potential for soil-plant-human exposure.

m The person conducting the remediation has the option to use: (1) TCLP or SPLP test results to compare with the remediation objectives listed in this Table; (2) the total amount of contaminant in the soil sample results to compare with pH specific remediation objectives listed in Appendix B, Table C or D of this Part (see Section 742.510 ); or (3) the appropriate background value listed in Appendix A, Table G. If the person conducting the remediation wishes to calculate soil remediation objectives based on background concentrations, this should be done in accordance with Subpart D of this Part.

n The Agency reserves the right to evaluate the potential for remaining contaminant concentrations to pose significant threats to crops, livestock, or wildlife.

o For agrichemical facilities, remediation objectives for surficial soils which are based on field application rates may be more appropriate for currently registered pesticides. Consult the Agency for further information.

p For agrichemical facilities, soil remediation objectives based on site-specific background concentrations of Nitrate as N may be more appropriate. Such determinations shall be conducted in accordance with the procedures set forth in Subparts D and I of this Part.

q The TCLP extraction must be done using water at a pH of 7.0.

r Value based on dietary Reference Dose.

s Value for Ingestion based on Reference Dose for Mercuric chloride (CAS No. 7487-94-7); value for Inhalation based on Reference Concentration for elemental Mercury (CAS No. 7439-97-6). Inhalation remediation objective only applies at sites where elemental mercury is a contaminant of concern.

t For the ingestion route for arsenic for industrial/commercial, see 742.Appendix A, Table G.

u Value based on Reference Dose for Thallium sulfate (CAS No. 7446-18-6).

w Value based on Reference Dose adjusted for dietary intake.

x For any populated areas as defined in Section 742.200, Appendix A, Table H may be used.

y Value based on maintaining fetal blood lead below 10 µg/d1, using the USEPA adults Blood Lead Model.

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