U.S. Code of Federal Regulations

Regulations most recently checked for updates: Oct 05, 2022

§ 439.27 - Pretreatment standards for new sources (PSNS).

Except as provided in 40 CFR 403.7, any new source subject to this subpart must achieve the following pretreatment standards:

Regulated parameter Pretreatment standards 1
Maximum daily discharge Average monthly discharge must not exceed
1 Acetone20.78.2
2 n-Amyl acetate20.78.2
3 Ethyl acetate20.78.2
4 Isopropyl acetate20.78.2
5 Methylene chloride3.00.7

1 Mg/L (ppm).

[63 FR 50431, Sept. 21, 1998; 64 FR 48104, Sept. 2, 1999]