Regulations last checked for updates: Nov 24, 2024

Title 40 - Protection of Environment last revised: Nov 21, 2024
§ 407.52 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.

Except as provided in §§ 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT):

Effluent characteristic Effluent limitations
Maximum for any 1 day Average of daily values for 30 consecutive days shall not exceed—
Metric units (kilograms per 1,000 kg of raw material)
BOD52.401.20
TSS2.801.40
pH( 1)( 1)
English units (pounds per 1,000 lb of raw material)
BOD52.401.20
TSS2.801.40
pH( 1)( 1)

1 Within the range 6.0 to 9.0.

[39 FR 10864, Mar. 21, 1974, as amended at 60 FR 33939, June 29, 1995]
authority: Secs. 301, 304 (b) and (c), 306 (b) and (c), 307(c) of the Federal Water Pollution Control Act, as amended; 33 U.S.C. 1251,1311,1314,1316,1317; 86 Stat. 816
source: 39 FR 10864, Mar. 21, 1974, unless otherwise noted.
cite as: 40 CFR 407.52