8 Ill. Adm. Code 259.APPENDIX C
C Default Soil Cleanup Objectives – Nitrate-N and Ammonium
Section 259
Section
259.APPENDIX C Default Soil Cleanup Objectives – Nitrate-N and Ammonium
Groundwater
Conditions
Class I
Class II
Analyte
Name
CEC
(mg/kg)
(mg/kg)
nitrate-N
N/A
80
800
ammonium
<8
500
1,000
8-15
1,000
3,600
15-24
2,200
9,300
>24
5,000
20,300
Note: The default
soil cleanup objectives for nitrate-N are based on an application rate
equivalent to 160 pounds per acre.