35 Ill. Adm. Code 742.220
Determination of Soil Saturation Limit
Section 742
Section 742.220
Determination of Soil Saturation Limit
a) For any organic contaminant that has a melting point below
30°C, the remediation objective for the outdoor inhalation exposure route
developed under Tier 2 shall not exceed the soil saturation limit, as
determined under subsection (c).
b) For any organic contaminant that has a melting point below
30°C, the remediation objective under Tier 2 for the soil component of the
groundwater ingestion exposure route shall not exceed the soil saturation
limit, as determined under subsection (c).
c) The soil saturation limit shall be:
1) The value listed in Appendix A, Table A for that specific
contaminant;
2) A value derived from Equation S29 in Appendix C, Table A; or
3) A value derived from another method approved by the Agency.