Section NR 270.052 - 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 obtaining titanium ores from lode deposits may not exceed: Effluent characteristic | [BPT] Effluent limitations |
Maximum for any 1 day | Average of daily values for 30 consecutive days |
Milligrams per liter |
TSS | 30.0 | 20.0 |
Fe | 2.0 | 0.001 |
pH | (1) | (1) |
(2) The concentration of pollutants discharged from mills beneficiating titanium ores by electrostatic methods, magnetic and physical methods, or flotation methods may not exceed: Effluent characteristic | [BPT] Effluent limitations |
Maximum for any 1 day | Average of daily values for 30 consecutive days |
Milligrams per liter |
TSS | 30.0 | 20.0 |
Zn | 1.0 | 0.5 |
Ni | 0.2 | 0.1 |
pH | (1) | (1) |
(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, zircon, or other heavy metals, and the milling techniques employed in conjunction with the dredge mining activity (milling techniques employed include the use of wet gravity metals in conjunction with electrostatic or magnetic methods) may not exceed: Effluent characteristic | [BPT] Effluent limitations |
Maximum for any 1 day | Average of daily values for 30 consecutive days |
Milligrams per liter |
TSS | 30.0 | 20.0 |
Fe | 2.0 | 1.0 |
pH | (1) | (1) |
Wis. Admin. Code Department of Natural Resources NR 270.052
Cr. Register, October, 1986, No. 370, eff. 11-1-86.Amended by, Chapter NR 270 was republished to correct an error in transcription in (2) (intro.) Register October 28 No. 826, eff. 10/21/2024