U.S. Code of Federal Regulations

Regulations most recently checked for updates: Oct 07, 2022

§ 439.26 - Pretreatment standards for existing sources (PSES).

Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart must achieve the following standards by September 21, 2001:

Pretreatment Standards (PSES)

Regulated parameter Maximum daily 1 Maximum monthly average 1
Acetone20.78.2
n-Amyl acetate20.78.2
Ethyl acetate20.78.2
Isopropyl acetate20.78.2
Methylene chloride3.00.7

1 mg/L (ppm).

[68 FR 12273, Mar. 13, 2003]