Wis. Admin. Code Department of Natural Resources NR 270.012

Current through November 25, 2024

Section NR 270.012 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT)

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 effluent limitations representing the degree of effluent reduction attainable after application of the best practicable control technology currently available (BPT):

(1) The concentration of pollutants discharged in mine drainage from mines operated to obtain iron ore may not exceed:

Effluent characteristic	Effluent limitations
	Maximum for any 1 day	Average of daily values for 30 consecutive days
Milligrams per liter
TSS	30.0	20.0
Fe (dissolved)	2.0	1.0
pH	(1)	(1)

(2) The concentration of pollutants discharged from mills that employ physical (magnetic and nonmagnetic) or chemical methods, or both, to beneficiate iron ore may not exceed:

[BPT] Effluent limitations
Effluent characteristic	Maximum for any 1 day	Average of daily values for 30 consecutive days
Milligrams per liter
TSS	30.0	20.0
Fe (dissolved)	2.0	1.0
pH	(1)	(1)

¹ Within the range 6.0 to 9.0

Wis. Admin. Code Department of Natural Resources NR 270.012

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