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Code of Federal Regulations Title 40. Protection of Environment § 40.471.43 New source performance standards (NSPS)
Current as of January 02, 2025 | Updated by Findlaw Staff
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.
Cite this article: FindLaw.com - Code of Federal Regulations Title 40. Protection of Environment § 40.471.43 New source performance standards (NSPS) - last updated January 02, 2025 | https://codes.findlaw.com/cfr/title-40-protection-of-environment/cfr-sect-40-471-43/
FindLaw Codes may not reflect the most recent version of the law in your jurisdiction. Please verify the status of the code you are researching with the state legislature before relying on it for your legal needs.
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