technology currently available.
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT):
Subpart I--Metallurgical Acid Plant------------------------------------------------------------------------
BPT effluent limitations
-------------------------
Pollutant or pollutant property Maximum for
Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds of 100%
sulfuric acid capacity
-------------------------Cadmium....................................... 0.180 0.090Copper........................................ 5.000 2.000Lead.......................................... 1.800 0.790Zinc.......................................... 3.600 0.900Fluoride \1\.................................. 212.800 121.000Molybdenum \1\................................ 40.180 20.790Total suspended solids........................ 304.000 152.000pH............................................ \2\ \2\------------------------------------------------------------------------\1\ For Molybdenum Acid Plants Only.\2\ Within the range of 6.0 to 9.0 at all times. [50 FR 38342, Sept. 20, 1985; 50 FR 52776, Dec. 26, 1985]