Wis. Admin. Code Department of Natural Resources NR 270.053

Current through November 25, 2024

Section NR 270.053 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT)

Except as provided in ss. NR 270.0015, 270.002 and 270.003 and 40 CFR 125.30- 125.32, any existing point source subject to this subcategory shall achieve the following limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT):

(1) The concentration of pollutants discharged in mine drainage from mines obtaining titanium ores from lode deposits may not exceed:

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

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

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

(3) 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) may not exceed:

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

Wis. Admin. Code Department of Natural Resources NR 270.053

Cr. Register, October, 1986, No. 370, eff. 11-1-86.