40 CFR 425.24 - New source performance standards (NSPS).

Regulations last checked for updates: Feb 11, 2026

Title 40 - Protection of Environment last revised: Dec 22, 2026

§ 425.24 - New source performance standards (NSPS).

Any new source subject to this subpart must achieve the following new source performance standards (NSPS):

Pollutant or pollutant property	NSPS
Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average
	Kg/kkg (or pound per 1,000 lb) of raw material
BOD5	6.9	3.1
TSS	9.9	4.5
Oil and grease	2.9	1.3
Total chromium	0.18	0.06
pH	( ¹)	( ¹)

¹ Within the range 6.0 to 9.0

authority: 33 U.S.C. 1311,1314,c,e, 1316 (b) andc, 1317 (b) andc,1318

source: 47 FR 52870, Nov. 23, 1982, unless otherwise noted.

cite as: 40 CFR 425.24