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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 H - Salt Bath Descaling Subcategory |
§ 420.85 - Pretreatment standards for existing sources (PSES).
Latest version.
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§ 420.85 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) Salt bath descaling, oxidizing -
(1) Batch, sheet and plate.
Subpart H
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 0.00292 0.00117 Nickel 0.00263 0.000876 (2) Batch, rod and wire.
Subpart H
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 0.00175 0.000701 Nickel 0.00158 0.000526 (3) Batch, pipe and tube.
Subpart H
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 0.00709 0.00284 Nickel 0.00638 0.00213 (4) Continuous.
Subpart H
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 0.00138 0.000551 Nickel 0.00124 0.000413 (b) Salt bath descaling, reducing -
(1) Batch.
Subpart H
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 Cyanide 0.00102 0.000339 Chromium 0.00136 0.000542 Nickel 0.00122 0.000407 (2) Continuous.
Subpart H
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) Cyanide 0.00569 0.00190 Chromium 0.00759 0.00304 Nickel 0.00683 0.00228 [47 FR 23284, May 27, 1982; 47 FR 41739, Sept. 22, 1982]