Pretreatment standards for existing sources.

§ 413.44 Pretreatment standards for existing sources.

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 (PSES):

(a) No user introducing wastewater pollutants into a publicly owned treatment works under the provisions of this subpart shall augment the use of process wastewater or otherwise dilute the wastewater as a partial or total substitute for adequate treatment to achieve compliance with this standard.

(b) For a source discharging less than 38,000 liters (10,000 gal) per calendar day of electroplating process wastewater the following limitations shall apply:

Subpart D—Anodizing Facilities Discharging Less Than 38,000 Liters Per Day PSES Limitations (mg/l)

Pollutant or pollutant property Maximum for any 1 day Average of daily values for 4 consecutive monitoring days shall not exceed
CN, A5.02.7
Pb0.60.4
Cd1.20.7
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