Ill. Admin. Code tit. 35 § 309.152
Current through Register Vol. 48, No. 23, June 7, 2024
Any NPDES Permit issued must include as a condition that if a toxic effluent standard or prohibition (including any schedule of compliance specified in the effluent standard or prohibition) is established under section 307(a) of the CWA for a toxic pollutant present in the permittee's discharge and that standard or prohibition is more stringent than any limitation upon the pollutant in the NPDES Permit, the Agency must revise or modify the permit according to the more stringent standard or prohibition and must notify the permittee.
Ill. Admin. Code tit. 35, § 309.152