40 CFR § 471.53 - New source performance standards (NSPS).
Any new source subject to this subpart must achieve the following new source performance standards (NSPS):
(a) Rolling spent neat oils and graphite based lubricants—subpart E—NSPS. There shall be no discharge of process wastewater pollutants.
(b) Rolling spent emulsions.
Subpart E—NSPS
1 Within the range of 7.5 to 10.0 at all times.
(c) Drawing spent lubricants—subpart E—NSPS. 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—NSPS
1 Within the range of 7.5 to 10.0 at all times.
(f) Forging spent lubricants—subpart E—NSPS. There shall be no discharge of process wastewater pollutants.
(g) Forging contact cooling water.
Subpart E—NSPS
| 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 |
| Oil and grease | 0.323 | 0.323 |
| TSS | 0.485 | 0.388 |
| pH | ( 1) | ( 1) |
1 Within the range of 7.5 to 10.0 at all times.
(h) Equipment cleaning wastewater.
Subpart E—NSPS
1 Within the range of 7.5 to 10.0 at all times.
(i) Metal powder production wastewater.
Subpart E—NSPS
1 Within the range of 7.5 to 10.0 at all times.
(j) Metal powder production floor wash wastewater—subpart E—NSPS. There shall be no discharge of process wastewater pollutants.
(k) Metal powder pressing spent lubricants—subpart E—NSPS. There shall be no discharge of process wastewater pollutants.
(l) Surface treatment spent baths.
Subpart E—NSPS
1 Within the range of 7.5 to 10.0 at all times.
(m) Surface treatment rinse.
Subpart E—NSPS
1 Within the range of 7.5 to 10.0 at all times.
(n) Alkaline cleaning spent baths.
Subpart E—NSPS
1 Within the range of 7.5 to 10.0 at all times.
(o) Alkaline cleaning rinse.
Subpart E—NSPS
1 Within the range of 7.5 to 10.0 at all times.
(p) Molten salt rinse.
Subpart E—NSPS
1 Within the range of 7.5 to 10.0 at all times.
(q) Tumbling or burnishing wastewater.
Subpart E—NSPS
1 Within the range of 7.5 to 10.0 at all times.
(r) Sawing or grinding spent neat oils—subpart E—NSPS. There shall be no discharge of process wastewater pollutants.
(s) Sawing or grinding spent emulsions.
Subpart E—NSPS
| 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 | 1.5 | 0.663 |
| Oil and grease | 2.97 | 2.97 |
| TSS | 4.46 | 3.57 |
| pH | ( 1) | ( 1) |
1 Within the range of 7.5 to 10.0 at all times.
(t) Sawing or grinding contact cooling water.
Subpart E—NSPS
| 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 |
| Oil and grease | 24.3 | 24.3 |
| TSS | 36.5 | 29.2 |
| pH | ( 1) | ( 1) |
1 Within the range of 7.5 to 10.0 at all times.
(u) Sawing or grinding rinse.
Subpart E—NSPS
| 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 |
| Oil and grease | 0.135 | 0.135 |
| TSS | 0.203 | 0.162 |
| pH | ( 1) | ( 1) |
1 Within the range of 7.5 to 10.0 at all times.
(v) Wet air pollution control scrubber blowdown.
Subpart E—NSPS
| 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 |
| Oil and grease | 7.87 | 7.87 |
| TSS | 11.8 | 9.45 |
| pH | ( 1) | ( 1) |
1 Within the range of 7.5 to 10.0 at all times.
(w) Miscellaneous wastewater sources.
Subpart E—NSPS
1 Within the range of 7.5 to 10.0 at all times.
(x) Dye penetrant testing wastewater.
Subpart E—NSPS
1 Within the range of 7.5 to 10.0 at all times.
(y) Degreasing spent solvents—subpart E—NSPS. There shall be no discharge of process wastewater pollutants.