Ill. Admin. Code tit. 35 § 742.400
Current through Register Vol. 49, No. 2, January 10, 2025
This Subpart provides procedures for determining area background concentrations for contaminants of concern. Except as described in Section 742.415(c) and (d) of this Subpart, area background concentrations may be used as remediation objectives for contaminants of concern at a site.
Ill. Admin. Code tit. 35, § 742.400