Except as provided in 40 CFR 403.7, any new 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 new sources. The mass of wastewater pollutants in metallurgical acid plant blowdown introduced into a POTW shall not exceed the following values:
Subpart I--Metallurgical Acid Plant--PSNS------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of 100
pct sulfuric acid
capacity
--------------Arsenic....................................... 3.550 1.584Cadmium....................................... 0.511 0.204Copper........................................ 3.269 1.558Lead.......................................... 0.715 0.332Zinc.......................................... 2.605 1.073Fluoride \1\.................................. 89.390 50.820Molybdenum \1\................................ [Reserved] [Reserved].------------------------------------------------------------------------\1\ For Molybdenum acid plants only. [50 FR 38343, Sept. 20, 1985, as amended at 55 FR 31697, Aug. 3, 1990] Sec. 421.97 [Reserved]