Regulations last checked for updates: May 16, 2024

Title 40 - Protection of Environment last revised: May 14, 2024
§ 408.257 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology.

Except as provided in §§ 125.30 through 125.32, the following limitations establish the quantity or quality of pollutants or pollutant properties, controlled by this section, which may be discharged by a point source subject to the provisions of this subpart after application of the best conventional pollutant control technology:

Effluent characteristic Effluent limitations
Maximum for any 1 day Average of daily values for thirty consecutive days shall not exceed—
Metric units (kilograms per 1,000 kg of product)
TSS4536
Oil and grease2.21.7
pH( 1)( 1)
English units (pounds per 1,000 lb of product)
TSS4536
Oil and grease2.21.7
pH( 1)( 1)

1 Within the range 6.0 to 9.0.

[51 FR 24998, July 9, 1986]
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 23140, June 26, 1974, unless otherwise noted.
cite as: 40 CFR 408.257