Illinois Administrative Code
Title 35 - ENVIRONMENTAL PROTECTION
Part 742 - TIERED APPROACH TO CORRECTIVE ACTION OBJECTIVES
Subpart C - EXPOSURE ROUTE EVALUATIONS
Section 742.310 - Outdoor Inhalation Exposure Route
Universal Citation: 35 IL Admin Code ยง 742.310
Current through Register Vol. 48, No. 38, September 20, 2024
The outdoor inhalation exposure route may be excluded from consideration if:
a) The requirements in subsection (a)(1) or (a)(2) are met:
1) An
approved engineered barrier is in place that meets the requirements of Subpart
K; or
2) The only contaminants of
concern are benzene, toluene, ethylbenzene, and total xylenes, and a
demonstration of active biodegradation has been made for benzene, toluene,
ethylbenzene, and total xylenes such that no outdoor inhalation exposure will
occur. This demonstration shall be submitted to the Agency for review and
approval;
b) The requirements of Sections 742.300 and 742.305 are met;
c) Safety precautions for the construction worker are taken if the Tier 1 construction worker remediation objectives are exceeded; and
d) An institutional control, in accordance with Subpart J, will be placed on the property.
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