§ 425.71 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).
Current through Aug 22, 2025 · Read all of Part 425
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 (BPT):
| Pollutant or pollutant property | NSPS | |
|---|---|---|
| Maximum for any 1 day | Maximum for monthly average | |
| Kg/kkg (or pounds per 1,000 pounds) of raw material | ||
| BOD5 | 3.0 | 1.3 |
| TSS | 4.3 | 1.9 |
| Oil & Grease | 1.2 | 0.55 |
| Total Chromium | 0.08 | 0.03 |
| pH | ( 1) | ( 1) |
1 Within the range of 6.0 to 9.0.
[47 FR 52870, Nov. 23, 1982, as amended at 53 FR 9183, Mar. 21, 1988]