Standards of performance for new sources.

Any new source subject to this subpart shall achieve the following new source performance standards: Subpart I—Metallurgical Acid Plant—NSPS Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per/million pounds) of 100 pct sulfuric acid capacity Arsenic 3.550 1.584 Cadmium 0.511 0.204 Copper 3.269 1.558 Lead 0.715 0.332 Zinc 2.605 1.073 Fluoride 1 89.390 50.820 Molybdenum 1 [Reserved] [Reserved]. Total suspended solids 38.310 30.650 pH ( 2 ) ( 2 ) 1 For Molybdenum acid plants only. 2 Within the range of 7.5 to 10.0 at all times. [50 FR 38343, Sept. 20, 1985, as amended at 55 FR 31697, Aug. 3, 1990]