40 CFR 405.25 - Standards of performance for new sources.

Regulations last checked for updates: Apr 30, 2025

Title 40 - Protection of Environment last revised: Nov 01, 2025

View all text of Subpart B [§ 405.20 - § 405.27]

§ 405.25 - Standards of performance for new sources.

Effluent characteristic	Effluent limitations
Effluent characteristic	Maximum for any 1 day	Average of daily values for 30 consecutive days shall not exceed—
	Metric units (kilograms per 1,000 kg of BOD5 input)
BOD5	0.740	0.370
TSS	0.925	.463
pH	( ¹)	( ¹)
	English units (pounds per 100 lb of BOD5 input)
BOD5	0.074	0.037
TSS	0.093	.046
pH	( ¹)	( ¹)

¹ Within the range 6.0 to 9.0.

authority: Secs. 301, 304 (b) and (c), 306 (b) and (c) and 307(c) of the Federal Water Pollution Control Act, as amended (the Act); 33 U.S.C. 1251,1311,1314,1316,and; 86 Stat. 816,

source: 39 FR 18597, May 28, 1974, unless otherwise noted.

cite as: 40 CFR 405.25