Ill. Admin. Code tit. 35, § 310.104 - State Law

a) 35 Ill. Adm. Code 307 includes three types of prohibitions and pretreatment standards:

1) Prohibitions, including prohibitions adopted by USEPA at 40 CFR 403.5 and more stringent prohibitions adopted by the Board (e.g., 35 Ill. Adm. Code 307.1101);

2) National pretreatment standards adopted by USEPA at 40 CFR 405 et seq., and incorporated by reference by the Board (e.g., Subparts F through CT of 35 Ill. Adm. Code 307); and

3) More stringent concentration-based standards adopted by the Board (e.g., 35 Ill. Adm. Code 307.1102 and 307.1103).

b) For subcategories for which there are both categorical pretreatment standards and concentration-based standards adopted by the Board for a pollutant, the Control Authority must apply the standard that is more stringent as applied to the particular discharge.

Notes

Ill. Admin. Code tit. 35, § 310.104

Amended at 28 Ill. Reg. 3390, effective February 6, 2004

Amended at 47 Ill. Reg. 5083, effective 3/23/2023

BOARD NOTE: Derived from 40 CFR 403.4 (2003).