§ 471.52 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).
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 available technology economically achievable (BAT):
(a) Rolling spent neat oils and graphite based lubricants—subpart E—BAT. There shall be no discharge of process wastewater pollutants.
(b) Rolling spent emulsions.
Subpart E—BAT
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/off-kg (pounds per million off-pounds) of refractory metals rolled with emulsions | ||
| Copper | 0.549 | 0.262 |
| Nickel | 0.236 | 0.157 |
| Fluoride | 25.5 | 11.3 |
| Molybdenum | 2.16 | 0.957 |
(c) Drawing spent lubricants—subpart E—BAT. There shall be no discharge of process wastewater pollutants.
(d) Extrusion spent lubricants—subpart E—BAT. There shall be no discharge of process wastewater pollutants.
(e) Extrusion press hydraulic fluid leakage.
Subpart E—BAT
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/off-kg (pounds per million off-pounds) of refractory metals extruded | ||
| Copper | 1.5 | 0.730 |
| Nickel | 0.650 | 0.440 |
| Fluoride | 71.000 | 31.0 |
| Molybdenum | 5.99 | 2.66 |
(f) Forging spent lubricants—subpart E—BAT. There shall be no discharge of process wastewater pollutants.