40 CFR § 465.31
Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available
June 9, 2020
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
Open Table
| Pollutant or pollutant property | BPT Effluent limitations | |||
|---|---|---|---|---|
| Maximum for any 1 day | Maximum for monthly average | |||
| mg/m2 (pounds per 1 million ft2) of area processed | ||||
| Chromium | 1.42 | (0.29) | 0.58 | (0.12) |
| Cyanide | 0.98 | (0.20) | 0.41 | (0.083) |
| Zinc | 4.48 | (0.92) | 1.89 | (0.39) |
| Aluminum | 15.3 | (3.14) | 6.26. | (1.28) |
| Oil and grease | 67.3 | (13.8) | 40.4 | (8.27) |
| TSS | 138.0 | (28.3) | 67.3 | (13.8) |
| pH | (1) | (1) | (1) | (1) |
1Within the range of 7.5 to 10.0 at all times.
[47 FR 54244, Dec. 1, 1982; 49 FR 33649, Aug. 24, 1984]
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