GroundRules
40 CFR 421.93: Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
Where this section sits in the code
- Title 40—Protection of Environment
- CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY
- SUBCHAPTER N—EFFLUENT GUIDELINES AND STANDARDS
- PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY
- Subpart I—Metallurgical Acid Plants Subcategory
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable:
Subpart I—Metallurgical Acid Plant—BAT Effluent Limitations
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].
1 For Molybdenum acid plants only.
Collected 2026-08-27T02:26:04Z. Source file · JSON