40 CFR § 426.112
Effluent limitations guidelines 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 §§125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT). (The fluoride and lead limitations are applicable to the abrasive polishing and acid polishing waste water streams while the TSS, oil, and pH limitations are applicable to the entire process waste water stream):
Open Table
| Effluent characteristic | Effluent limitations | |
|---|---|---|
| Maximum for any 1 day | Average of daily values for 30 consecutive days shall not exceed— | |
| Metric units (g/kkg of furnace pull) | ||
| Oil | 260.0 | 130.0 |
| TSS | 300.0 | 150.0 |
| Fluoride | 140.0 | 70.0 |
| Lead | 39.0 | 4.5 |
| pH | (1) | (1) |
| English units (lb/1,000 lb of furnace pull) | ||
| Oil | 0.26 | 0.13 |
| TSS | 0.30 | 0.15 |
| Fluoride | 0.14 | 0.07 |
| Lead | 0.009 | 0.0045 |
| pH | (1) | (1) |
1Within the range 6.0 to 9.0.
[40 FR 2957, Jan. 16, 1975, as amended at 60 FR 33959, June 29, 1995]
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