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. Subpart E 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 0.0000939 0.0000313 Zinc 0.000141 0.0000469