40 CFR 440.63 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).

Code of Federal Regulations - Title 40: Protection of Environment

Updated to: July 01, 2010

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Title 40: Protection of Environment

CHAPTER I: ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)

SUBCHAPTER N: EFFLUENT GUIDELINES AND STANDARDS

PART 440: ORE MINING AND DRESSING POINT SOURCE CATEGORY

Subpart F: Tungsten Ore Subcategory

440.63 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).

Except as provided in subpart L of this part and 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT):

(a) The concentration of pollutants discharged in mine drainage from tungsten mines shall not exceed:

Effluent characteristic	Effluent limitations	Maximum for any 1 day	Average of daily values for 30 consecutive days
	Milligrams per liter
Cd	0.10	0.05
Cu	0.30	0.15
Zn	1.0	0.5

(b) The concentration of pollutants discharged from mills shall not exceed:

Effluent characteristic	Effluent limitations	Maximum for any 1 day	Average of daily values for 30 consecutive days
	Milligrams per liter
Cd	0.10	0.05
Cu	0.3	0.15
Zn	1.0	0.5