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.
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)
|
(c) Drawing spent neat oils—subpart D—NSPS. There shall be no discharge of process wastewater pollutants.
(d) Drawing spent emulsions.
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)
|
(e) Drawing spent soap solutions.
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)
|
(f) Metal powder production atomization wastewater.
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)
|
(g) Heat treatment 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 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)
|
(h) Semi-continuous and continuous casting 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 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)
|
(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.
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)
|
(k) Shot casting 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 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)
|
(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.
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)
|
(n) 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 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)
|
(o) 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 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)
|
(p) 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 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)
|
(q) 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 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)
|
(r) Alkaline cleaning pre-bonding wastewater.
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)
|
(s) 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 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)
|
(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.
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)
|
(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]