Any new source subject to this subpart must achieve the following new source performance standards (NSPS):
(a) Rolling spent neat oils—subpart H—NSPS. There shall be no discharge of process wastewater pollutants.
(b) Rolling spent emulsions.
Subpart H—NSPS
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/off-kg (pounds per million off-pounds) of zinc rolled with emulsions | ||
| Chromium | 0.0005 | 0.0002 |
| Copper | 0.002 | 0.0009 |
| Cyanide | 0.0003 | 0.0001 |
| Zinc | 0.002 | 0.0006 |
| Oil and grease | 0.014 | 0.014 |
| TSS | 0.021 | 0.017 |
| pH | (1) | (1) |
1Within the range of 7.5 to 10.0 at all times.
(c) Rolling contact cooling water.
Subpart H—NSPS
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/off-kg (pounds per million off-pounds) of zinc rolled with contact cooling water | ||
| Chromium | 0.020 | 0.009 |
| Copper | 0.069 | 0.037 |
| Cyanide | 0.011 | 0.004 |
| Zinc | 0.055 | 0.023 |
| Oil and grease | 0.536 | 0.536 |
| TSS | 0.804 | 0.643 |
| pH | (1) | (1) |
1Within the range of 7.5 to 10.0 at all times.
(d) Drawing spent emulsions.
Subpart H—NSPS
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/off-kg (pounds per million off-pounds) of zinc drawn with emulsions | ||
| Chromium | 0.002 | 0.0009 |
| Copper | 0.008 | 0.004 |
| Cyanide | 0.001 | 0.0005 |
| Zinc | 0.006 | 0.003 |
| Oil and grease | 0.058 | 0.058 |
| TSS | 0.087 | 0.070 |
| pH | (1) | (1) |
1Within the range of 7.5 to 10.0 at all times
(e) Direct chill casting contact cooling water.
Subpart H—NSPS
| Pollutant or pollutant property | Maximum for any one day | Maximum for monthly average |
|---|---|---|
| mg/off-kg (pounds per million off-pounds) of zinc cast by the direct chill method | ||
| Chromium | 0.019 | 0.008 |
| Copper | 0.065 | 0.031 |
| Cyanide | 0.010 | 0.004 |
| Zinc | 0.052 | 0.021 |
| Oil and grease | 0.505 | 0.505 |
| TSS | 0.758 | 0.606 |
| pH | (1) | (1) |
1Within the range of 7.5 to 10.0 at all times.
(f) Stationary casting contact cooling water—subpart H—NSPS. There shall be no discharge of process wastewater pollutants.
(g) Heat treatment contact cooling water.
Subpart H—NSPS
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/off-kg (pounds per million off-pounds) of zinc heat treated | ||
| Chromium | 0.029 | 0.012 |
| Copper | 0.098 | 0.047 |
| Cyanide | 0.016 | 0.006 |
| Zinc | 0.078 | 0.032 |
| Oil and grease | 0.763 | 0.763 |
| TSS | 1.15 | 0.916 |
| pH | (1) | (1) |
1Within the range of 7.5 to 10.0 at all times.
(h) Surface treatment spent baths.
Subpart H—NSPS
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/off-kg (pounds per million off-pounds) of zinc surface treated | ||
| Chromium | 0.033 | 0.014 |
| Copper | 0.114 | 0.054 |
| Cyanide | 0.018 | 0.007 |
| Zinc | 0.091 | 0.038 |
| Oil and grease | 0.887 | 0.887 |
| TSS | 1.33 | 1.07 |
| pH | (1) | (1) |
1Within the range of 7.5 to 10.0 at all times.
(i) Surface treatment rinse.
Subpart H—NSPS
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/off-kg (pounds per million off-pounds) of zinc surface treated | ||
| Chromium | 0.133 | 0.054 |
| Copper | 0.459 | 0.219 |
| Cyanide | 0.072 | 0.029 |
| Zinc | 0.365 | 0.151 |
| Oil and grease | 3.58 | 3.58 |
| TSS | 5.37 | 4.30 |
| pH | (1) | (1) |
1Within the range of 7.5 to 10.0 at all times.
(j) Alkaline cleaning spent baths.
Subpart H—NSPS
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/off-kg (pounds per million off-pounds) of zinc alkaline cleaned | ||
| Chromium | 0.002 | 0.0006 |
| Copper | 0.005 | 0.002 |
| Cyanide | 0.0007 | 0.0003 |
| Zinc | 0.004 | 0.002 |
| Oil and grease | 0.036 | 0.036 |
| TSS | 0.054 | 0.043 |
| pH | (1) | (1) |
1Within the range of 7.5 to 10.0 at all times.
(k) Alkaline cleaning rinse.
Subpart H—NSPS
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/off-kg (pounds per million off-pounds) of zinc alkaline cleaned | ||
| Chromium | 0.626 | 0.259 |
| Copper | 2.17 | 1.03 |
| Cyanide | 0.338 | 0.135 |
| Zinc | 1.73 | 0.710 |
| Oil and grease | 16.9 | 16.9 |
| TSS | 25.4 | 20.3 |
| pH | (1) | (1) |
1Within the range of 7.5 to 10.0 at all times.
(l) Sawing or grinding spent emulsions.
Subpart H—NSPS
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/off-kg (pounds per million off-pounds) of zinc sawed or ground with emulsions | ||
| Chromium | 0.009 | 0.004 |
| Copper | 0.031 | 0.015 |
| Cyanide | 0.005 | 0.002 |
| Zinc | 0.025 | 0.010 |
| Oil and grease | 0.235 | 0.235 |
| TSS | 0.357 | 0.286 |
| pH | (1) | (1) |
1Within the range of 7.5 to 10.0 at all times.
(m) Electrocoating rinse.
Subpart H—NSPS
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/off-kg (pounds per million off-pounds) of zinc electrocoated | ||
| Chromium | 0.085 | 0.035 |
| Copper | 0.293 | 0.140 |
| Cyanide | 0.046 | 0.019 |
| Zinc | 0.234 | 0.096 |
| Oil and grease | 2.29 | 2.29 |
| TSS | 3.44 | 2.75 |
| pH | (1) | (1) |
1Within the range of 7.5 to 10.0 at all times
(n) Degreasing spent solvents—subpart H—NSPS. There shall be no discharge of process wastewater pollutants.
[50 FR 34270, Aug. 23, 1985; 51 FR 2888, Jan. 22, 1986]
Tried the LawStack mobile app?
Join thousands and try LawStack mobile for FREE today.
- Carry the law offline, wherever you go.
- Download CFR, USC, rules, and state law to your mobile device.
