40 CFR 415.344 - Pretreatment standards for existing sources (PSES).
(a) Existing sources which annually introduce less than 210,000 cubic meters per year (55 million gallons per year) of chrome pigments process wastewater into a publicly owned treatment works are subject only to the standards specified in 40 CFR part 403.
(b) Except as provided in 40 CFR 403.7 and 403.13 and paragraph (a) of this section, 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):
Subpart AH - Chrome Pigments
|Pollutant or pollutant property||PSES effluent limitations|
|Maximum for any 1 day||Average of daily values for 30 consecutive days|
|Milligrams per liter (mg/l)|