40 CFR 439.27 - Pretreatment standards for new sources (PSNS).

Regulations last checked for updates: May 17, 2024

Title 40 - Protection of Environment last revised: May 15, 2024

§ 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
Regulated parameter	Maximum daily discharge	Average monthly discharge must not exceed
1 Acetone	20.7	8.2
2 n-Amyl acetate	20.7	8.2
3 Ethyl acetate	20.7	8.2
4 Isopropyl acetate	20.7	8.2
5 Methylene chloride	3.0	0.7

¹ Mg/L (ppm).

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

authority: 33 U.S.C. 1311,1314,1316,1317,1318,1342

source: 48 FR 49821, Oct. 27, 1983, unless otherwise noted.

cite as: 40 CFR 439.27