Code of Federal Regulations (Last Updated: July 5, 2024) |
Title 40 - Protection of Environment |
Chapter I - Environmental Protection Agency |
SubChapter N - Effluent Guidelines and Standards |
Part 471 - Nonferrous Metals Forming and Metal Powders Point Source Category |
Subpart E - Refractory Metals Forming Subcategory |
§ 471.55 - Pretreatment standards for new sources (PSNS).
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§ 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 (f) Forging spent lubricants - subpart E - PSNS. There shall be no discharge of process wastewater pollutants.
(g) Forging contact cooling water.
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 forged refractory metals cooled with water Copper 0.041 0.320 Nickel 0.018 0.021 Fluoride 1.92 0.853 Molybdenum 0.163 0.072 (h) Equipment cleaning wastewater.
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 formed Copper 0.174 0.083 Nickel 0.075 0.051 Fluoride 8.09 3.59 Molybdenum 0.684 0.303 (i) Metal powder production wastewater.
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 powder produced Copper 0.360 0.172 Nickel 0.155 0.104 Fluoride 16.7 7.42 Molybdenum 1.42 0.627 (j) Metal powder production floor wash wastewater - subpart E - PSNS. There shall be no discharge of process wastewater pollutants.
(k) Metal powder pressing spent lubricants - subpart E - PSNS. There shall be no discharge of process wastewater pollutants.
(l) Surface treatment spent baths.
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 surface treated Copper 0.498 0.237 Nickel 0.214 0.144 Fluoride 23.2 10.3 Molybdenum 1.96 0.868 (m) Surface treatment rinse.
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 surface treated Copper 15.5 7.38 Nickel 6.66 4.48 Fluoride 720 320 Molybdenum 60.9 27.0 (n) Alkaline cleaning spent baths.
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 alkaline cleaned Copper 0.428 0.204 Nickel 0.184 0.124 Fluoride 19.9 8.82 Molybdenum 1.68 0.745 (o) Alkaline cleaning rinse.
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 alkaline cleaned Copper 10.5 4.98 Nickel 4.49 3.02 Fluoride 48.6 216 Molybdenum 41.1 18.2 (p) Molten salt rinse.
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 treated with molten salt Copper 0.810 0.386 Nickel 0.348 0.234 Fluoride 37.7 16.7 Molybdenum 3.19 1.41 (q) Tumbling or burnishing wastewater.
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 tumbled or burnished Copper 1.60 0.763 Nickel 0.688 0.463 Fluoride 74.4 33.0 Molybdenum 6.29 2.79 (r) Sawing or grinding spent neat oils - subpart E - PSNS. There shall be no discharge or process wastewater pollutants.
(s) Sawing or grinding 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 sawed or ground with emulsions Copper 0.380 0.181 Nickel 0.164 0.110 Fluoride 17.7 7.84 Molybdenum 1.50 0.663 (t) Sawing or grinding contact cooling water.
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 sawed or ground with contact cooling water Copper 3.11 1.48 Nickel 1.34 0.899 Fluoride 145 64.2 Molybdenum 12.2 5.42 (u) Sawing or grinding rinse.
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 sawed or ground refractory metals rinsed Copper 0.018 0.009 Nickel 0.008 0.005 Fluoride 0.803 0.357 Molybdenum 0.068 0.030 (v) Wet air pollution control blowdown.
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 sawed, ground, surface coated or surface treated Copper 1.01 0.480 Nickel 0.433 0.291 Fluoride 46.8 20.8 Molybdenum 3.96 1.76 (w) Miscellaneous wastewater source.
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 formed Copper 0.442 0.211 Nickel 0.192 0.128 Fluoride 20.6 9.11 Molybdenum 1.74 0.770 (x) Dye penetrant testing wastewater.
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 product tested Copper 0.100 0.048 Nickel 0.043 0.029 Fluoride 4.62 2.05 Molybdenum 0.391 0.173 (y) Degreasing spend solvents - subpart E - PSNS. There shall be no discharge of process wastewater pollutants.
[50 FR 34270, Aug. 23, 1985; 51 FR 2887, Jan. 22, 1986]