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------------------------------------------------------------------------
PSES effluent limitations
-----------------------------
Average of
Pollutant or pollutant property daily values
Maximum for for 30
any 1 day consecutive
days------------------------------------------------------------------------
Milligrams per liter (mg/l)
----------------Arsenic (T)............................... 3.0 1.0Zinc (T).................................. 2.3 0.76Lead (T).................................. 0.18 0.048------------------------------------------------------------------------ [49 FR 33428, Aug. 22, 1984; 49 FR 37594, Sept. 25, 1984]