Illinois Administrative Code
Title 35 - ENVIRONMENTAL PROTECTION
Part 742 - TIERED APPROACH TO CORRECTIVE ACTION OBJECTIVES
Subpart L - BUILDING CONTROL TECHNOLOGIES
Appendix A - General
Table G - Concentrations of Inorganic Chemicals in Background Soils
Chemical Name |
Counties Within Metropolitan Statistical Areas (mg/kg) |
Counties Outside Metropolitan Statistical Areas (mg/kg) |
Aluminum |
9,500 |
9,200 |
Antimony |
4.0 |
3.3 |
Arsenic |
13.0 |
11.3 |
Barium |
110` |
122 |
Beryllium |
0.59 |
0.56 |
Cadmium |
0.6 |
0.50 |
Calcium |
9,300 |
5,525 |
Chromium |
16.2 |
13.0 |
Cobalt |
8.9 |
8.9 |
Copper |
19.6 |
12.0 |
Cyanide |
0.51 |
0.50 |
Iron |
15,900 |
15,000 |
Lead |
36.0 |
20.9 |
Magnesium |
4,820 |
2,700 |
Manganese |
636 |
630 |
Mercury |
0.06 |
0.05 |
Nickel |
18.0 |
13.0 |
Potassium |
1,268 |
1,100 |
Selenium |
0.48 |
0.37 |
Silver |
0.55 |
0.50 |
Sodium |
130 |
130.0 |
Sulfate |
85.5 |
110 |
Sulfide |
3.1 |
2.9 |
Thallium |
0.32 |
0.42 |
Vanadium |
25.2 |
25.0 |
Zinc |
95.0 |
60.2 |
BOARD NOTE: Counties within Metropolitan Statistical Areas: Boone, Champaign, Clinton, Cook, DuPage, Grundy, Henry, Jersey, Kane, Kankakee, Kendall, Lake, Macon, Madison, McHenry, McLean, Menard, Monroe, Peoria, Rock Island, Sangamon, St. Clair, Tazewell, Will, Winnebago and Woodford.