40 CFR § 437.31 - Effluent limitations attainable by the application of the best practicable control technology currently available (BPT).
§ 437.31 Effluent limitations attainable by the application of the best practicable control technology currently available (BPT).
Except as provided in 40 CFR 125.30 through 125.32 or § 437.30(b), any existing point source subject to this subpart must achieve the following effluent limitations representing the application of BPT:
BPT Limitations
Regulated
parameter |
Maximum daily 1 | Maximum monthly avg. 1 |
---|---|---|
|
||
BOD5 | 163 | 53.0 |
pH | ( 2) | ( 2) |
TSS | 216 | 61.3 |
|
||
Copper | 0.865 | 0.757 |
Zinc | 0.497 | 0.420 |
|
||
Acetone | 30.2 | 7.97 |
Acetophenone | 0.114 | 0.0562 |
2–Butanone | 4.81 | 1.85 |
o-Cresol | 1.92 | 0.561 |
p-Cresol | 0.698 | 0.205 |
Phenol | 3.65 | 1.08 |
Pyridine | 0.370 | 0.182 |
2,4,6–Trichlorophenol | 0.155 | 0.106 |
1 mg/L (ppm).
2 Within the range 6 to 9.
[65 FR 81300, Dec. 22, 2000, as amended at 68 FR 71023, Dec. 22, 2003]