40 CFR 420.35: 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) Iron blast furnace.

Subpart C

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 products

Ammonia-N 1 0.00876 0.00292

Cyanide 0.00175 0.000876

Phenols (4AAP) 0.0000584 0.0000292

Lead 0.000263 0.0000876

Zinc 0.000394 0.000131

1 The pretreatment standards for ammonia are not applicable to sources that discharge to a POTW with nitrification capability (defined at 420.02(s)).

(b) [Reserved]

(c) Existing indirect dischargers.

Subpart C

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

Ammonia-N 0.0350 0.0175

Cyanide 0.00175 0.000876

Phenols (4AAP) 0.000175 0.0000584

Lead 0.000263 0.0000876

Zinc 0.000394 0.000131