Text
Title 40: Protection of Environment
CHAPTER I: ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
SUBCHAPTER N: EFFLUENT GUIDELINES AND STANDARDS
PART 471: NONFERROUS METALS FORMING AND METAL POWDERS POINT SOURCE CATEGORY
Subpart E: Refractory Metals Forming Subcategory
471.51 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).
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 for the process operations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT):
(a) Rolling spent neat oils and graphite based lubricants?Subpart E?BPT. There shall be no discharge of process wastewater pollutants.
(b) Rolling spent emulsions.
| 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 | 0.815 | 0.429 |
| Nickel | 0.824 | 0.545 |
| Fluoride | 25.5 | 11.3 |
| Molybdenum | 2.84 | 1.47 |
| Oil and grease | 8.58 | 5.15 |
| TSS | 17.6 | 8.37 |
| pH | (1) | (1) |
(c) Drawing spent lubricants?Subpart E?BPT. There shall be no discharge of process wastewater pollutants.
(d) Extrusion spent lubricants?Subpart E?BPT. There shall be no discharge of process wastewater pollutants.
(e) Extrusion press hydraulic fluid leakage.
| 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 | 2.26 | 1.19 |
| Nickel | 2.29 | 1.51 |
| Fluoride | 70.8 | 31.4 |
| Molybdenum | 7.87 | 4.07 |
| Oil and grease | 23.8 | 14.3 |
| TSS | 48.8 | 23.2 |
| pH | (1) | (1) |
(f) Forging spent lubricants?Subpart E?BPT. There shall be no discharge of process wastewater pollutants.
(g) Forging contact cooling water.
| 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 | 0.614 | 0.323 |
| Nickel | 0.620 | 0.410 |
| Fluoride | 19.2 | 8.53 |
| Molybdenum | 2.14 | 1.11 |
| Oil and grease | 6.46 | 3.88 |
| TSS | 13.3 | 6.30 |
| pH | (1) | (1) |
(h) Equipment cleaning wastewater.
| 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 | 2.59 | 1.36 |
| Nickel | 2.61 | 1.73 |
| Fluoride | 80.9 | 35.9 |
| Molybdenum | 8.99 | 4.65 |
| Oil and grease | 27.2 | 16.3 |
| TSS | 55.8 | 26.5 |
| pH | (1) | (1) |
(i) Metal powder production wastewater.
| 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 | 0.534 | 0.281 |
| Nickel | 0.540 | 0.357 |
| Fluoride | 16.70 | 7.42 |
| Molybdenum | 1.86 | 0.961 |
| Oil and grease | 5.62 | 3.37 |
| TSS | 11.5 | 5.48 |
| pH | (1) | (1) |
(j) Metal powder production floor wash wastewater?Subpart E?BPT. There shall be no discharge of process wastewater pollutants.
(k) Metal powder pressing spent lubricants?Subpart E?BPT. There shall be no discharge of process wastewater pollutants.
(l) Surface treatment spent baths.
| 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 | 0.739 | 0.389 |
| Nickel | 0.747 | 0.494 |
| Fluoride | 23.2 | 10.3 |
| Molybdenum | 2.57 | 1.33 |
| Oil and grease | 7.78 | 4.68 |
| TSS | 16.0 | 7.59 |
| pH | (1) | (1) |
(m) Surface treatment rinse.
| 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 | 230 | 121 |
| Nickel | 232 | 154 |
| Fluoride | 7,200 | 3,200 |
| Molybdenum | 800 | 414 |
| Oil and grease | 2,420 | 1,450 |
| TSS | 4,960 | 2,360 |
| pH | (1) | (1) |
(n) Alkaline cleaning spent baths.
| 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 | 0.635 | 0.334 |
| Nickel | 0.641 | 0.424 |
| Fluoride | 19.9 | 8.82 |
| Molybdenum | 2.21 | 1.14 |
| Oil and grease | 6.68 | 4.01 |
| TSS | 13.7 | 6.51 |
| pH | (1) | (1) |
(o) Alkaline cleaning rinse.
| 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 | 1,550 | 816 |
| Nickel | 1,570 | 1,040 |
| Fluoride | 48,600 | 21,600 |
| Molybdenum | 5,400 | 2,790 |
| Oil and grease | 16,300 | 9,790 |
| TSS | 33,500 | 15,900 |
| pH | (1) | (1) |
(p) Molten salt rinse.
| 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 | 12.1 | 6.33 |
| Nickel | 12.2 | 8.04 |
| Fluoride | 377 | 167 |
| Molybdenum | 41.9 | 21.7 |
| Oil and grease | 127 | 76.0 |
| TSS | 260 | 124 |
| pH | (1) | (1) |
(q) Tumbling or burnishing wastewater.
| 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 | 23.8 | 12.5 |
| Nickel | 24.0 | 15.9 |
| Fluoride | 744 | 330 |
| Molybdenum | 82.7 | 42.8 |
| Oil and grease | 250 | 150 |
| TSS | 513 | 244 |
| pH | (1) | (1) |
(r) Sawing or grinding spent neat oils?Subpart E?BPT. There shall be no discharge of process wastewater pollutants.
(s) Sawing or grinding spent emulsions.
| 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 | 0.565 | 0.297 |
| Nickel | 0.570 | 0.377 |
| Fluoride | 17.7 | 7.84 |
| Molybdenum | 1.97 | 1.02 |
| Oil and grease | 5.94 | 3.57 |
| TSS | 12.2 | 5.79 |
| pH | (1) | (1) |
(t) Sawing or grinding contact cooling water.
| 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 | 46.2 | 24.3 |
| Nickel | 46.7 | 30.9 |
| Fluoride | 1450 | 642 |
| Molybdenum | 161 | 83.1 |
| Oil and grease | 486 | 292 |
| TSS | 997 | 474 |
| pH | (1) | (1) |
(u) Sawing or grinding rinse.
| 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 | 0.257 | 0.135 |
| Nickel | 0.259 | 0.172 |
| Fluoride | 8.03 | 3.57 |
| Molybdenum | 0.893 | 0.462 |
| Oil and grease | 2.70 | 1.62 |
| TSS | 5.54 | 2.63 |
| pH | (1) | (1) |
(v) Wet air pollution control scrubber blowdown.
| 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, surface coated or surface treated | ||
| Copper | 1.50 | 0.787 |
| Nickel | 1.51 | 1.00 |
| Fluoride | 46.8 | 20.8 |
| Molybdenum | 5.20 | 2.69 |
| Oil and grease | 15.8 | 9.45 |
| TSS | 32.3 | 15.4 |
| pH | (1) | (1) |
(w) Miscellaneous wastewater sources.
| 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 | 0.656 | 0.345 |
| Nickel | 0.663 | 0.438 |
| Fluoride | 20.6 | 9.11 |
| Molybdenum | 2.28 | 1.18 |
| Oil and grease | 6.9 | 4.14 |
| TSS | 14.2 | 6.73 |
| pH | (1) | (1) |
(x) Dye penetrant testing wastewater.
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
| mg/off-kg (pounds per million off-pounds) of refractory metals tested | ||
| Copper | 0.150 | 0.078 |
| Nickel | 0.150 | 0.099 |
| Fluoride | 4.60 | 2.00 |
| Molybdenum | 0.513 | 0.266 |
| Oil and grease | 1.60 | 0.930 |
| TSS | 3.20 | 1.50 |
| pH | (1) | (1) |
(y) Degreasing spent solvents?Subpart E?BPT. There shall be no discharge of process wastewater pollutants.
[50 FR 34270, Aug. 23, 1985; 51 FR 2886, Jan. 22, 1986]
Sponsored links
