35 Ill. Adm. Code 742.712
SSL Soil Gas Equation for the Outdoor Inhalation Exposure Route
Section
742.712Â SSL Soil Gas Equation for the Outdoor Inhalation Exposure Route
a)Â Â Â Â Â Â Â Â This Section
sets forth the equation and parameters used to develop Tier 2 soil gas
remediation objectives for the outdoor inhalation exposure route using the SSL approach.
b)Â Â Â Â Â Â Â Â Equation
S30 is used to calculate Tier 2 soil gas remediation objectives for the outdoor
inhalation exposure route for residential, industrial/commercial, and
construction worker populations.
c)Â Â Â Â Â Â Â Â Equations
S4 through S16, S26 and S27, which calculate Tier 2 soil remediation objectives
as described in Section 742.710(c), form the basis for developing the Tier 2
soil gas remediation objectives for the outdoor inhalation exposure route using
the SSL model.
d)Â Â Â Â Â Â Â Â The
remaining parameters used to calculate Equation S30 are listed in Appendix C,
Table B, except for Dimensionless Henry's Law Constant (25
°
C), a chemical specific value listed in
Appendix C, Table E.