40 C.F.R. § 421.94

Current through September 30, 2024
Section 421.94 - 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
Arsenic3.5501.584
Cadmium0.5110.204
Copper3.2691.558
Lead0.7150.332
Zinc2.6051.073
Fluoride189.39050.820
Molybdenum1[Reserved][Reserved].
Total suspended solids38.31030.650
pH(2)(2)

1 For Molybdenum acid plants only.

2 Within the range of 7.5 to 10.0 at all times.

40 C.F.R. §421.94

50 FR 38343, Sept. 20, 1985, as amended at 55 FR 31697, Aug. 3, 1990