40 CFR § 429.81 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).
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§ 429.81 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).
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):
Subpart G
| Pollutant or pollutant property | BPT Effluent Limitations | |
|---|---|---|
| Maximum for any 1 day | Average of daily values for 30 consecutive days | |
| English units (lb/1000 cubic feet of product) | ||
| COD | 68.5 | 34.5 |
| Phenols | .14 | .04 |
| Oil and Grease | 1.5 | .75 |
| pH | ( 1) | ( 1) |
| Metric units (kg/1000 cu m of product) | ||
| COD | 1,100 | 550 |
| Phenols | 2.18 | .65 |
| Oil and Grease | 24.0 | 12.0 |
| pH | ( 1) | ( 1) |
1 Within the range of 6.0 to 9.0 at all times.