Title 40
SECTION 471.43
471.43 New source performance standards (NSPS).
§ 471.43 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 - subpart D - NSPS. There shall be no discharge of process wastewater pollutants.
(b) Rolling spent emulsions.
Subpart D - NSPS
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/off-kg (pounds per million off-pounds) of precious metals rolled with emulsions | ||
| Cadmium | 0.026 | 0.012 |
| Copper | 0.147 | 0.077 |
| Cyanide | 0.023 | 0.010 |
| Silver | 0.032 | 0.013 |
| Oil and grease | 1.54 | 0.925 |
| TSS | 3.16 | 1.51 |
| pH | ( 1) | ( 1) |
1 Within the range of 7.5 to 10.0 at all times.
(c) Drawing spent neat oils - subpart D - NSPS. There shall be no discharge of process wastewater pollutants.
(d) Drawing spent emulsions.
Subpart D - NSPS
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/off-kg (pounds per million off-pounds) of precious metals drawn with emulsions | ||
| Cadmium | 0.017 | 0.007 |
| Copper | 0.091 | 0.048 |
| Cyanide | 0.014 | 0.006 |
| Silver | 0.020 | 0.008 |
| Oil and grease | 0.950 | 0.570 |
| TSS | 1.95 | 0.927 |
| pH | ( 1) | ( 1) |
1 Within the range of 7.5 to 10.0 at all times.
(e) Drawing spent soap solutions.
Subpart D - NSPS
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/off-kg (pounds per million off-pounds) of precious metals drawn with soap solutions | ||
| Cadmium | 0.001 | 0.0005 |
| Copper | 0.006 | 0.003 |
| Cyanide | 0.0009 | 0.0004 |
| Silver | 0.002 | 0.0006 |
| Oil and grease | 0.063 | 0.038 |
| TSS | 0.128 | 0.061 |
| pH | ( 1) | ( 1) |
1 Within the range of 7.5 to 10.0 at all times.
(f) Metal powder production atomization wastewater.
Subpart D - NSPS
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/off-kg (pounds per million off-pounds) of precious metals powder wet atomized | ||
| Cadmium | 2.27 | 1.00 |
| Copper | 12.7 | 6.68 |
| Cyanide | 1.94 | 0.802 |
| Silver | 2.74 | 1.14 |
| Oil and grease | 134 | 80.2 |
| TSS | 274 | 131 |
| pH | ( 1) | ( 1) |
1 Within the range of 7.5 to 10.0 at all times.
(g) Heat treatment contact cooling water.
Subpart D - NSPS
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/off-kg (pounds per million off-pounds) of precious metals heat treated | ||
| Cadmium | 0.142 | 0.063 |
| Copper | 0.793 | 0.417 |
| Cyanide | 0.121 | 0.050 |
| Silver | 0.171 | 0.071 |
| Oil and grease | 8.34 | 5.01 |
| TSS | 17.1 | 8.13 |
| pH | ( 1) | ( 1) |
1 Within the range of 7.5 to 10.0 at all times.
(h) Semi-continuous and continuous casting contact cooling water.
Subpart D - NSPS
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/off-kg (pounds per million off-pounds) of precious metals cast by the semi-continuous or continuous method | ||
| Cadmium | 0.350 | 0.155 |
| Copper | 1.96 | 1.03 |
| Cyanide | 0.299 | 0.124 |
| Silver | 0.423 | 0.175 |
| Oil and grease | 20.6 | 12.4 |
| TSS | 42.3 | 20.1 |
| pH | ( 1) | ( 1) |
1 Within the range of 7.5 to 10.0 at all times.
(i) Stationary casting contact cooling water - subpart D - NSPS. There shall be no discharge of process wastewater pollutants.
(j) Direct chill casting contact cooling water.
Subpart D - NSPS
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/off-kg (pounds per million off-pounds) of precious metals cast by the direct chill method | ||
| Cadmium | 0.367 | 0.162 |
| Copper | 2.05 | 1.08 |
| Cyanide | 0.313 | 0.130 |
| Silver | 0.443 | 0.184 |
| Oil and grease | 21.6 | 13.0 |
| TSS | 44.3 | 21.1 |
| pH | ( 1) | ( 1) |
1 Within the range of 7.5 to 10.0 at all times.
(k) Shot casting contact cooling water.
Subpart D - NSPS
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/off-kg (pounds per million off-pounds) of precious metals shot cast | ||
| Cadmium | 0.125 | 0.055 |
| Copper | 0.698 | 0.367 |
| Cyanide | 0.107 | 0.044 |
| Silver | 0.151 | 0.063 |
| Oil and grease | 7.34 | 4.41 |
| TSS | 15.1 | 7.16 |
| pH | ( 1) | ( 1) |
1 Within the range of 7.5 to 10.0 at all times.
(l) Wet air pollution control scrubber blowdown - subpart D - NSPS. There shall be no discharge of process wastewater pollutants.
(m) Pressure bonding contact cooling water.
Subpart D - NSPS
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/off-kg (pounds per million off-pounds) of precious metals and base metal pressure bonded | ||
| Cadmium | 0.029 | 0.013 |
| Copper | 0.159 | 0.084 |
| Cyanide | 0.024 | 0.010 |
| Silver | 0.034 | 0.014 |
| Oil and grease | 1.67 | 1.00 |
| TSS | 3.43 | 1.63 |
| pH | ( 1) | ( 1) |
1 Within the range of 7.5 to 10.0 at all times.
(n) Surface treatment spent baths.
Subpart D - NSPS
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/off-kg (pounds per million off-pounds) of precious metals surface treated | ||
| Cadmium | 0.033 | 0.015 |
| Copper | 0.183 | 0.097 |
| Cyanide | 0.028 | 0.012 |
| Silver | 0.040 | 0.017 |
| Oil and grease | 1.93 | 1.16 |
| TSS | 3.95 | 1.88 |
| pH | ( 1) | ( 1) |
1 Within the range of 7.5 to 10.0 at all times.
(o) Surface treatment rinse.
Subpart D - NSPS
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/off-kg (pounds per million off-pounds) of precious metals surface treated | ||
| Cadmium | 0.210 | 0.093 |
| Copper | 1.17 | 0.616 |
| Cyanide | 0.179 | 0.074 |
| Silver | 0.253 | 0.105 |
| Oil and grease | 12.3 | 7.39 |
| TSS | 25.3 | 12.0 |
| pH | ( 1) | ( 1) |
1 Within the range of 7.5 to 10.0 at all times.
(p) Alkaline cleaning spent baths.
Subpart D - NSPS
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/off-kg (pounds per million off-pounds) of precious metals alkaline cleaned | ||
| Cadmium | 0.021 | 0.009 |
| Copper | 0.114 | 0.060 |
| Cyanide | 0.018 | 0.007 |
| Silver | 0.025 | 0.010 |
| Oil and grease | 1.20 | 0.720 |
| TSS | 2.46 | 1.17 |
| pH | ( 1) | ( 1) |
1 Within the range of 7.5 to 10.0 at all times.
(q) Alkaline cleaning rinse.
Subpart D - NSPS
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/off-kg (pounds per million off-pounds) of precious metals alkaline cleaned | ||
| Cadmium | 0.381 | 0.168 |
| Copper | 2.13 | 1.112 |
| Cyanide | 0.325 | 0.135 |
| Silver | 0.459 | 0.191 |
| Oil and grease | 22.4 | 13.5 |
| TSS | 45.9 | 21.9 |
| pH | ( 1) | ( 1) |
1 Within the range of 7.5 to 10.0 at all times.
(r) Alkaline cleaning pre-bonding wastewater.
Subpart D - NSPS
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/off-kg (pounds per million off-pounds) of precious metals and base metal cleaned prior to bonding | ||
| Cadmium | 0.400 | 0.174 |
| Copper | 2.21 | 1.16 |
| Cyanide | 0.337 | 0.139 |
| Silver | 0.476 | 0.197 |
| Oil and grease | 23.2 | 13.9 |
| TSS | 47.6 | 22.6 |
| pH | ( 1) | ( 1) |
1 Within the range of 7.5 to 10.0 at all times.
(s) Tumbling or burnishing wastewater.
Subpart D - NSPS
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/off-kg (pounds per million off-pounds) of precious metals tumbled or burnished | ||
| Cadmium | 0.412 | 0.182 |
| Copper | 2.30 | 1.21 |
| Cyanide | 0.351 | 0.145 |
| Silver | 0.496 | 0.206 |
| Oil and grease | 24.2 | 14.5 |
| TSS | 49.6 | 23.6 |
| pH | ( 1) | ( 1) |
1 Within the range of 7.5 to 10.0 at all times.
(t) Sawing or grinding spent neat oils - subpart D - NSPS. There shall be no discharge of process wastewater pollutants.
(u) Sawing or grinding spent emulsions.
Subpart D - NSPS
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/off-kg (pounds per million off-pounds) of precious metals sawed or ground with emulsions | ||
| Cadmium | 0.032 | 0.014 |
| Copper | 0.178 | 0.094 |
| Cyanide | 0.027 | 0.011 |
| Silver | 0.038 | 0.016 |
| Oil and grease | 1.87 | 1.12 |
| TSS | 3.83 | 1.82 |
| pH | ( 1) | ( 1) |
1 Within the range of 7.5 to 10.0 at all times.
(v) Degreasing spent solvents - subpart D - NSPS. There shall be no discharge of process wastewater pollutants.
[50 FR 34270, Aug. 23, 1985; 51 FR 2886, Jan. 22, 1986]