Except as provided in 40 CFR 403.7, any new source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources (PSNS). The mass of the wastewater introduced into a POTW shall not exceed the following values:
(a) Rolling spent neat oils—subpart H—PSNS. There shall be no discharge of process wastewater pollutants.
(b) Rolling spent emulsions.
Subpart H—PSNS
| 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 |
(c) Rolling contact cooling water.
Subpart H—PSNS
| 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 | 0.008 |
| Copper | 0.069 | 0.033 |
| Cyanide | 0.011 | 0.004 |
| Zinc | 0.055 | 0.023 |
(d) Drawing spent emulsions.
Subpart H—PSNS
| 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 |
(e) Direct chill casting contact cooling water.
Subpart H—PSNS
| Pollutant or pollutant property | Maximum for any 1 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 |
(f) Stationary casting contact cooling water—subpart H—PSNS. There shall be no discharge of process wastewater pollutants.
(g) Heat treatment contact cooling water.
Subpart H—PSNS
| 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 |
(h) Surface treatment spent baths.
Subpart H—PSNS
| 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 |
(i) Surface treatment rinse.
Subpart H—PSNS
| 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 |
(j) Alkaline cleaning spent baths.
Subpart H—PSNS
| 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 |
(k) Alkaline cleaning rinse.
Subpart H—PSNS
| 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 | 0.254 |
| Copper | 2.17 | 1.03 |
| Cyanide | 0.338 | 0.134 |
| Zinc | 1.73 | 0.710 |
(l) Sawing or grinding spent emulsions.
Subpart H—PSNS
| 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 |
(m) Electrocoating rinse.
Subpart H—PSNS
| 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 |
(n) Decreasing spent solvents—subpart H—PSNS. There shall be no discharge of process wastewater pollutants.
[50 FR 34270, Aug. 23, 1985; 51 FR 2888, Jan. 22, 1986]
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