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Code of Federal Regulations (Last Updated: November 8, 2024) |
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Title 40 - Protection of Environment |
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Chapter I - Environmental Protection Agency |
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SubChapter N - Effluent Guidelines and Standards |
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Part 420 - Iron and Steel Manufacturing Point Source Category |
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Subpart I - Acid Pickling Subcategory |
§ 420.95 - Pretreatment standards for existing sources (PSES).
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§ 420.95 Pretreatment standards for existing sources (PSES).
Except as provided in 40 CFR 403.7 and 403.13, any existing 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 existing sources.
(a) Sulfuric acid (spent acid solutions and rinse waters) -
(1) Rod, wire, and coil.
Subpart I
Pollutant or pollutant property Pretreatment standards for existing sources Maximum for any 1 day Average of daily values for 30 consecutive days Kg/kkg (pounds per 1,000 lb) of product Lead 0.000526 0.000175 Zinc 0.000701 0.000234 (2) Bar, billet, and bloom.
Subpart I
Pollutant or pollutant property Pretreatment standards for existing sources Maximum for any 1 day Average of daily values for 30 consecutive days Kg/kkg (pounds per 1,000 lb) of product Lead 0.000169 0.0000563 Zinc 0.000225 0.0000751 (3) Strip, sheet, and plate.
Subpart I
Pollutant or pollutant property Pretreatment standards for existing sources Maximum for any 1 day Average of daily values for 30 consecutive days Kg/kkg (pounds per 1,000 lb) of product Lead 0.000338 0.000113 Zinc 0.000451 0.000150 (4) Pipe, tube, and other products.
Subpart I
Pollutant or pollutant property Pretreatment standards for existing sources Maximum for any 1 day Average of daily values for 30 consecutive days Kg/kkg (pounds per 1,000 lb) of product Lead 0.000939 0.000313 Zinc 0.00125 0.000417 (5) Fume scrubber.
Subpart I
Pollutant or pollutant property Pretreatment standards for existing sources Maximum for any 1 day Average of daily values for 30 consecutive days Kilograms per day Lead 0.0368 0.0123 Zinc 0.0491 0.0164 (b) Hydrochloric acid pickling (spent acid solutions and rinse waters) -
(1) Rod, wire, and coil.
Subpart I
Pollutant or pollutant property Pretreatment standards for existing sources Maximum for any 1 day Average of daily values for 30 consecutive days Kg/kkg (pounds per 1,000 lb) of product Lead 0.000920 0.000307 Zinc 0.00123 0.000409 (2) Strip, sheet, and plate.
Subpart I
Pollutant or pollutant property Pretreatment standards for existing sources Maximum for any 1 day Average of daily values for 30 consecutive days Kg/kkg (pounds per 1,000 lb) of product Lead 0.000526 0.000175 Zinc 0.000701 0.000234 (3) Pipe, tube, and other products.
Subpart I
Pollutant or pollutant property Pretreatment standards for existing sources Maximum for any 1 day Average of daily values for 30 consecutive days Kg/kkg (pounds per 1,000 lb) of product Lead 0.00192 0.000638 Zinc 0.00255 0.000851 (4) Fume scrubber.
Subpart I
Pollutant or pollutant property Pretreatment standards for existing sources Maximum for any 1 day Average of daily values for 30 consecutive days Kilograms per day Lead 0.0368 0.0123 Zinc 0.0491 0.0164 (5) Acid regeneration (absorber vent scrubber).
Subpart I
Pollutant or pollutant property Pretreatment standards for existing sources Maximum for any 1 day Average of daily values for 30 consecutive days Kilograms per day Lead 0.245 0.0819 Zinc 0.327 0.109 (c) Combination acid pickling (spent acid solutions and rinse waters) -
(1) Rod, wire, and coil.
Subpart I
Pollutant or pollutant property Pretreatment standards for existing sources Maximum for any 1 day Average of daily values for 30 consecutive days Kg/kkg (pounds per 1,000 lb) of product Chromium 0.00213 0.000852 Nickel 0.00192 0.000638 (2) Bar, billet, and bloom.
Subpart I
Pollutant or pollutant property Pretreatment standards for existing sources Maximum for any 1 day Average of daily values for 30 consecutive days Kg/kkg (pounds per 1,000 lb) of product Chromium 0.000960 0.000384 Nickel 0.000864 0.000288 (3) Strip, sheet, and plate - continuous.
Subpart I
Pollutant or pollutant property Pretreatment standards for existing sources Maximum for any 1 day Average of daily values for 30 consecutive days Kg/kkg (pounds per 1,000 lb) of product Chromium 0.00626 0.00250 Nickel 0.00563 0.00188 (4) Strip, sheet, and plate - batch.
Subpart I
Pollutant or pollutant property Pretreatment standards for existing sources Maximum for any 1 day Average of daily values for 30 consecutive days Kg/kkg (pounds per 1,000 lb) of product Chromium 0.00192 0.000768 Nickel 0.00173 0.000576 (5) Pipe, tube, and other products.
Subpart I
Pollutant or pollutant property Pretreatment standards for existing sources Maximum for any 1 day Average of daily values for 30 consecutive days Kg/kkg (pounds per 1,000 lb) of product Chromium 0.00322 0.00129 Nickel 0.00289 0.000964 (6) Fume scrubber.
Subpart I
Pollutant or pollutant property Pretreatment standards for existing sources Maximum for any 1 day Average of daily values for 30 consecutive days Kilograms per day Chromium 0.0819 0.0327 Nickel 0.0735 0.0245 [47 FR 23284, May 27, 1982; 47 FR 41739, Sept. 22, 1982, as amended at 49 FR 21033, May 17, 1984]