Section 742.605  Land Use

a)         Present and post-remediation land use is evaluated in a Tier 2 evaluation. Acceptable exposure factors for the Tier 2 evaluation for residential, industrial/commercial, and construction worker populations are provided in the far right column of Appendix C, Tables B, D, and M.  Use of exposure factors different from those in Appendix C, Tables B, D, and M must be approved by the Agency as part of a Tier 3 evaluation.

b)         If a Tier 2 evaluation is based on an industrial/commercial property use, then:

1)         Construction worker populations shall also be evaluated, except for the indoor inhalation exposure route; and

2)         Institutional controls are required in accordance with Subpart J.

c)         For the indoor inhalation exposure route, institutional controls under Subpart J are required to develop remediation objectives pursuant to Appendix C, Table L.

(Source:  Amended at 37 Ill. Reg. 7506, effective May 15, 2013)