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.
(g) Forging contact cooling water.
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 forged refractory metals cooled with water | ||
| Copper | 0.041 | 0.020 |
| Nickel | 0.018 | 0.012 |
| Fluoride | 1.92 | 0.853 |
| Molybdenum | 0.163 | 0.072 |
(h) Equipment cleaning wastewater.
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 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—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 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—BAT. There shall be no discharge of process wastewater pollutants.
(k) Metal powder pressing spent lubricants—subpart E—BAT. There shall be no discharge of process wastewater pollutants.
(l) Surface treatment spent baths.
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 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—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 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—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 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—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 alkaline cleaned | ||
| Copper | 10.5 | 4.98 |
| Nickel | 4.49 | 3.02 |
| Fluoride | 486 | 216 |
| Molybdenum | 41.1 | 18.2 |
(p) Molten salt rinse.
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 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—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 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—BAT. There shall be no discharge of process wastewater pollutants.
(s) Sawing or grinding 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 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—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 sawed or ground with contact cooling water | ||
| Copper | 3.11 | 1.48 |
| Nickel | 1.34 | 0.899 |
| Fluoride | 145.0 | 64.2 |
| Molybdenum | 12.2 | 5.42 |
(u) Sawing or grinding rinse.
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 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 scrubber blowdown.
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 sawed, 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 sources.
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 formed | ||
| Copper | 0.442 | 0.211 |
| Nickel | 0.190 | 0.128 |
| Fluoride | 20.6 | 9.11 |
| Molybdenum | 1.74 | 0.770 |
(x) Dye penetrant testing wastewater.
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 product tested | ||
| Copper | 0.100 | 0.048 |
| Nickel | 0.043 | 0.029 |
| Fluoride | 4.62 | 2.05 |
| Molybdenum | 0.391 | 0.173 |
(y) Degreasing spent solvents—subpart E—BAT. There shall be no discharge of process wastewater pollutants.
[50 FR 34270, Aug. 23, 1985; 51 FR 2886, Jan. 22, 1986]
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