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]