View all text of Subpart AU [§ 415.470 - § 415.477]
§ 415.472 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).
(a) Except as provided in 40 CFR 125.30 through 125.32 any existing point source subject to this subpart and producing nickel sulfate, nickel chloride, nickel nitrate, or nickel fluoborate must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT):
Subpart AU—Nickel Sulfate, Nickel Chloride, Nickel Nitrate, Nickel Fluoborate
| Pollutant or pollutant property | BPT effluent limitations | Maximum for any 1 day | Average of daily values for 30 consecutive days | Kg/kkg (or pounds per/1,000 lb) of product | TSS | 0.096 | 0.032 | Nickel (T) | 0.0060 | 0.0020 | pH | ( 1) | ( 1) |
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1 Within the range 6.0 to 9.0.
(b) Except as provided in 40 CFR 125.30 through 125.32 any existing point source subject to this subpart and producing nickel carbonate must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT):
Subpart AU—Nickel Carbonate
| Pollutant or pollutant property | BPT effluent limitations | Maximum for any 1 day | Average of daily values for 30 consecutive days | Kg/kkg (or pounds per/1,000 lb) of product | TSS | 17. | 5.6 | Nickel (T) | 1.1 | 0.35 | pH | ( 1) | ( 1) |
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1 Within the range 6.0 to 9.0.