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 C - pH Specific Soil Remediation Objectives for Inorganics and Ionizing Organics for the Soil Component of the Groundwater Ingestion Route (Class I Groundwater)

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

Chemical (totals) (mg/kg)

pH 4.5 to 4.74

pH 4.75 to 5.24

pH 5.25 to 5.74

pH 5.75 to 6.24

pH 6.25 to 6.64

pH

6.65 to 6.89

pH

6.9 to 7.24

pH

7.25 to 7.74

pH

7.75 to 8.24

pH 8.25 to 8.74

pH 8.75 to 9.0

Inorganics

Antimony

5

5

5

5

5

5

5

5

5

5

5

Arsenic

25

26

27

28

29

29

29

30

31

32

33

Barium

260

490

850

1,200

1,500

1,600

1,700

1,800

2,100

__a

__a

Beryllium

1.1

2.1

3.4

6.6

22

63

140

1,000

8,000

__a

__a

Cadmium

1.0

1.7

2.7

3.7

5.2

7.5

11

59

430

__a

__a

Chromium (+6)

70

62

54

46

40

38

36

32

28

24

21

Copper

330

580

2,100

11,000

59,000

130,000

200,000

330,000

330,000

__a

__a

Cyanide

40

40

40

40

40

40

40

40

40

40

40

Lead

23

23

23

23

107

107

107

107

107

107

282

Mercury

0.01

0.01`

0.03

0.15

0.89

2.1

3.3

6.4

8.0

__a

__a

Nickel

20

36

56

76

100

130

180

700

3,800

__a

__a

Selenium

24

17

12

8.8

6.3

5.2

4.5

3.3

2.4

1.8

1.3

Silver

0.24

0.33

0.62

1.5

4.4

8.5

13

39

110

__a

__a

Thallium

1.6

1.8

2.0

2.4

2.6

2.8

3.0

3.4

3.8

4.4

4.9

Vanadium

980

980

980

980

980

980

980

980

980

980

980

Zinc

1,000

1,800

2,600

3,600

5,100

6,200

7,500

16,000

53,000

__a

__a

Chemical (totals)

(mg/kg)

pH 4.5 to 4.74

pH 4.75 to 5.24

pH 5.25 to 5.74

pH 5.75 to 6.24

pH 6.25 to 6.64

pH 6.65 to 6.89

pH 6.9 to 7.24

pH 7.25 to 7.74

pH 7.75 to 8.24

pH 8.25 to 8.74

pH 8.75 to 9.0

Organics

Benzoic Acid

440

420

410

400

400

400

400

400

400

400

400

2-Chlorophenol

4.0

4.0

4.0

4.0

3.9

3.9

3.9

3.6

3.1

2.2

1.5

2,4-Dichlorophenol

1.0

1.0

1.0

1.0

1.0

1.0

1.0

0.86

0.69

0.56

0.48

Dinoseb

8.4

4.5

1.9

0.82

0.43

0.34

0.31

0.27

0.25

0.25

0.25

Pentachlorophenol

0.54

0.32

0.15

0.07

0.04

0.03

0.02

0.02

0.02

0.02

0.02

2,4,5-TP (Silvex)

26

16

12

11

11

11

11

11

11

11

11

2,4,5-Trichlorophenol

400

390

390

370

320

270

230

130

64

36

26

2,4,6-Trichlorophenol

0.37

0.36

0.34

0.29

0.20

0.15

0.13

0.09

0.07

0.07

0.07

a No data available for this pH range.

Disclaimer: These regulations may not be the most recent version. Illinois may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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