40 C.F.R. § 440.53

Current through September 30, 2024

Section 440.53 - 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 mines obtaining titanium ores from lode deposits shall not exceed:

Effluent characteristic	Effluent limitations
	Maximum for any 1 day	Average of daily values for 30 consecutive days
	Milligrams per liter
Fe	2.0	1.0

(b) The concentration of pollutants discharged from mills beneficiating titanium ores by electrostatic methods, magnetic and physical methods, or flotation methods shall not exceed:

Effluent characteristic	Effluent limitations
	Maximum for any 1 day	Average of daily values for 30 consecutive days
	Milligrams per liter
Zn	1.0	0.5

(c) The concentration of pollutants discharged in mine drainage from mines engaged in the dredge mining of placer deposits of sands containing rutile, ilmenite, leucoxene, monazite, or zircon and the milling techniques employed in conjunction with the dredge mining activity (milling techniques employed include the use of wet gravity methods in conjunction with electrostatic or magnetic methods) shall not exceed:

Effluent characteristic	Effluent limitations
	Maximum for any 1 day	Average of daily values for 30 consecutive days
	Milligrams per liter
Fe	2.0	1.0

40 C.F.R. § 440.53