§ 471.55 Pretreatment standards for new sources (PSNS).
Except as provided in 40 CFR 403.7, any new source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources (PSNS). The mass of wastewater pollutants in the refractory metals forming process wastewater shall not exceed the values set forth below:
(a) Rolling spent neat oils and graphite based lubricants—subpart E—PSNS. There shall be no discharge of process wastewater pollutants.
(b) Rolling spent emulsions.
Subpart E—PSNS
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 | 0.159 |
Fluoride | 25.5 | 11.3 |
Molybdenum | 2.16 | 0.957 |
(c) Drawing spent lubricants—subpart E—PSNS. There shall be no discharge of process wastewater pollutants.
(d) Extrusion spent lubricants—subpart E—NSPS. There shall be no discharge of process wastewater pollutants.
(e) Extrusion press hydraulic fluid leakage.
Subpart E—PSNS
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 | 1.53 | 0.726 |
Nickel | 0.655 | 0.441 |
Fluoride | 70.8 | 31.4 |
Molybdenum | 5.99 | 2.66 |