View all text of Subpart G [§ 420.70 - § 420.77]
§ 420.74 - New source performance standards (NSPS).
The discharge of wastewater pollutants from any new source subject to this subpart shall not exceed the standards set forth below.
(a) Primary mills, carbon and specialty—(1) Without scarfing.
Subpart G
| Pollutant or pollutant property | New source performance standards | Maximum for any 1 day | Average of daily values for 30 consecutive days | Kg/kkg (pounds per 1,000 lb) of product | TSS | 0.0150 | 0.00563 | O&G | 0.00373 | pH | ( 1) | ( 1) |
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1 Within the range of 6.0 to 9.0.
(2) With scarfing.
Subpart G
| Pollutant or pollutant property | New source performance standards | Maximum for any 1 day | Average of daily values for 30 consecutive days | Kg/kkg (pounds per 1,000 lb) of product | TSS | 0.0234 | 0.00876 | O&G | 0.00584 | pH | ( 1) | ( 1) |
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1 Within the range of 6.0 to 9.0.
(b) Section mills—(1) Carbon.
Subpart G
| Pollutant or pollutant property | New source performance standards | Maximum for any 1 day | Average of daily values for 30 consecutive days | Kg/kkg (pounds per 1,000 lb) of product | TSS | 0.0334 | 0.0125 | O&G | 0.00834 | pH | ( 1) | ( 1) |
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1 Within the range of 6.0 to 9.0.
(2) Specialty.
Subpart G
| Pollutant or pollutant property | New source performance standards | Maximum for any 1 day | Average of daily values for 30 consecutive days | Kg/kkg (pounds per 1,000 lb) of product | TSS | 0.0217 | 0.00813 | O&G | 0.00542 | pH | ( 1) | ( 1) |
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1 Within the range of 6.0 to 9.0.
(c) Flat mills—(1) Hot strip and sheet mills, carbon and specialty.
Subpart G
| Pollutant or pollutant property | New source performance standards | Maximum for any 1 day | Average of daily values for 30 consecutive days | Kg/kkg (pounds per 1,000 lb) of products | TSS | 0.0435 | 0.0163 | O&G | 0.0109 | pH | ( 1) | ( 1) |
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1 Within the range of 6.0 to 9.0
(2) Carbon plate mills.
Subpart G
| Pollutant or pollutant property | New source performance standards | Maximum for any 1 day | Average of daily values for 30 consecutive days | Kg/kkg (pounds per 1,000 lb) of products | TSS | 0.0234 | 0.00876 | O&G | 0.00584 | pH | ( 1) | ( 1) |
|---|
1 Within the range of 6.0 to 9.0
(3) Specialty plate mills.
Subpart G
| Pollutant or pollutant property | New source performance standards | Maximum for any 1 day | Average of daily values for 30 consecutive days | Kg/kkg (pounds per 1,000 lb) of products | TSS | 0.0100 | 0.00375 | O&G | 0.00250 | pH | ( 1) | ( 1) |
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1 Within the range of 6.0 to 9.0
(d) Pipe and tube mills, carbon and specialty.
Subpart G
| Pollutant or pollutant property | New source performance standards | Maximum for any 1 day | Average of daily values for 30 consecutive days | Kg/kkg (pounds per 1,000 lb) of products | TSS | 0.0369 | 0.0138 | O&G | 0.00917 | pH | ( 1) | ( 1) |
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1 Within the range of 6.0 to 9.0