40 CFR § 415.674 - Pretreatment standards for existing sources (PSES).

§ 415.674 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 (PSES):

Subpart BO—Zinc Chloride

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)
Arsenic (T) 3.0 1.0
Zinc (T) 2.3 0.76
Lead (T) 0.18 0.048
[49 FR 33428, Aug. 22, 1984; 49 FR 37594, Sept. 25, 1984]