Statutes, codes, and regulations
Illinois Administrative Code
Title 35 - ENVIRONMENTAL PROTECTIONPart 352 - PROCEDURES FOR DETERMINING WATER QUALITY BASED PERMIT LIMITATIONS FOR NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM DISCHARGERS TO THE LAKE MICHIGAN BASIN
Subpart C - ASSESSING HUMAN HEALTH IMPACTS OF MULTIPLE TOXIC SUBSTANCES INCLUDING ADDITIVITY PROCEDURES FOR CHLORINATED DIBENZO-P-DIOXINS AND CHLORINATED DIBENZOFURANS
Section 352.300 - Additivity for Combinations of Substances

Ill. Admin. Code tit. 35 § 352.300

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Current through Register Vol. 48, No. 49, December 6, 2024
Section 352.300 - Additivity for Combinations of Substances

35 Ill. Adm. Code 302.590 establishes an acceptable additive risk level of one in 100,000 (10(-5)) for establishing Tier I criteria and Tier II values for combinations of substances exhibiting a carcinogenic or other nonthreshold toxic mechanism. For those discharges containing multiple nonthreshold substances, application of this additive standard shall be consistent with Sections 352.302 and 352.303.

Ill. Admin. Code tit. 35, § 352.300