View all text of Subpart D [§ 464.40 - § 464.47]
§ 464.44 - New source performance standards.
Any new source subject to this subpart must achieve the following new source performance standards (NSPS), except that non-continuous dischargers shall not be subject to the maximum day and maximum for monthly average mass (kg/1,000 kkg or lb/million lb of metal poured; kg/62.3 million Sm 3 or lb/billion SCF of air scrubbed) effluent standards for copper, lead, zinc, total phenols, oil and grease, and TSS. For non-continuous dischargers, annual average mass standards and maximum day and maximum for monthly average concentration (mg/l) standards shall apply. Concentration standards and annual average mass standards shall only apply to non-continuous dischargers.
(a) Casting Quench Operations.
NSPS
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | kg/1,000 kkg (pounds per million pounds) of metal poured | Copper (T) | 0.0344 | 0.0187 | Lead (T) | 0.0237 | 0.0116 | Zinc (T) | 0.0339 | 0.0129 | Oil and grease | 1.34 | 0.446 | TSS | 0.67 | 0.536 | pH | ( 1) | ( 1) |
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1 Within the range of 7.0 to 10.0 at all times.
| Maximum for any 1 day | Maximum for monthly average | Annual average 1 | (mg/l) 2 | (mg/l) 2 | Copper (T) | 0.77 | 0.42 | 0.0076 | Lead (T) | 0.53 | 0.26 | 0.0067 | Zinc (T) | 0.76 | 0.29 | 0.008 | Oil and grease | 30 | 10 | 0.223 | TSS | 15 | 12 | 0.116 | pH | ( 3) | ( 3) | ( 3) |
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1 kg/1,000 kkg (pounds per million pounds) of metal poured.
2 These concentrations must be multiplied by the ratio of (5.34/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of metal poured) for a specific plant.
3 Within the range of 7.0 to 10.0 at all times.
(b) Die Casting Operations.
NSPS
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | kg/1,000 kkg (pounds per million pounds) of metal poured | Copper (T) | 0.0066 | 0.0036 | Lead (T) | 0.0046 | 0.0022 | Zinc (T) | 0.0066 | 0.0025 | Total phenols | 0.0074 | 0.0026 | Oil and grease | 0.259 | 0.0864 | TSS | 0.13 | 0.104 | pH | ( 1) | ( 1) |
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1 Within the range of 7.0 to 10.0 at all times.
| Maximum for any 1 day | Maximum for monthly average | Annual average 1 | (mg/l) 2 | (mg/l) 2 | Copper (T) | 0.77 | 0.42 | 0.0015 | Lead (T) | 0.53 | 0.26 | 0.0013 | Zinc (T) | 0.76 | 0.29 | 0.0016 | Total phenols | 0.86 | 0.3 | 0.0017 | Oil and grease | 30 | 10 | 0.0432 | TSS | 15 | 12 | 0.0225 | pH | ( 3) | ( 3) | ( 3) |
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1kg/1,000 kkg (pounds per million pounds) of metal poured.
2These concentrations must be multiplied by the ratio of (1.04/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of metal poured) for a specific plant.
3Within the range of 7.0 to 10.0 at all times.
(c) Melting Furnace Scrubber Operations.
NSPS
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | kg/62.3 million Sm 3 (pounds per billion SCF) of air scrubbed | Copper (T) | 1.56 | 0.852 | Lead (T) | 1.07 | 0.527 | Zinc (T) | 1.54 | 0.588 | Total phenols | 1.74 | 0.608 | Oil and grease | 60.8 | 20.3 | TSS | 30.4 | 24.3 | pH | ( 1) | ( 1) |
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1 Within the range of 7.0 to 10.0 at all times.
| Maximum for any 1 day | Maximum for monthly average | Annual average 1 | (mg/l) 2 | (mg/l) 2 | Copper (T) | 0.77 | 0.42 | 0.345 | Lead (T) | 0.53 | 0.26 | 0.304 | Zinc (T) | 0.76 | 0.29 | 0.365 | Total phenols | 0.86 | 0.3 | 0.406 | Oil and grease | 30 | 10 | 10.1 | TSS | 15 | 12 | 5.27 | pH | ( 3) | ( 3) | ( 3) |
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1 kg/62.3 million Sm 3 (pounds per billion SCF) of air scrubbed.
2 These concentrations must be multiplied by the ratio of (0.243/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 SCF of air scrubbed) for a specific plant.
3 Within the range of 7.0 to 10.0 at all times.
(d) Mold Cooling Operations.
NSPS
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | kg/1,000 kkg (pounds per million pounds) of metal poured | Copper (T) | 0.304 | 0.166 | Lead (T) | 0.209 | 0.103 | Zinc (T) | 0.3 | 0.114 | Oil and grease | 11.8 | 3.94 | TSS | 5.91 | 4.73 | pH | ( 1) | ( 1) |
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1 Within the range of 7.0 to 10.0 at all times.
| Maximum for any 1 day | Maximum for monthly average | Annual average 1 | (mg/l) 2 | (mg/l) 2 | Copper (T) | 0.77 | 0.42 | 0.067 | Lead (T) | 0.53 | 0.26 | 0.0591 | Zinc (T) | 0.76 | 0.29 | 0.071 | Oil and grease | 30 | 10 | 1.97 | TSS | 15 | 12 | 1.03 | pH | ( 3) | ( 3) | ( 3) |
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1 kg/1,000 kkg (pounds per million pounds) of metal poured.
2 These concentrations must be multiplied by the ratio of (47.3/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of metal poured) for a specific plant.
3 Within the range of 7.0 to 10.0 at all times.