40 C.F.R. § 465.31

Current through October 31, 2024
Section 465.31 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available

Except as provided in 40 CFR 125.30 through 125.32 , any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available:

Subpart C

Pollutant or pollutant propertyBPT Effluent limitations
Maximum for any 1 dayMaximum for monthly average
mg/m2 (pounds per 1 million ft2) of area processed
Chromium1.42(0.29)0.58(0.12)
Cyanide0.98(0.20)0.41(0.083)
Zinc4.48(0.92)1.89(0.39)
Aluminum15.3(3.14)6.26.(1.28)
Oil and grease67.3(13.8)40.4(8.27)
TSS138.0(28.3)67.3(13.8)
pH(1)(1)(1)(1)

1 Within the range of 7.5 to 10.0 at all times.

40 C.F.R. §465.31

47 FR 54244, Dec. 1, 1982; 49 FR 33649, Aug. 24, 1984