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

Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT). 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 by the application of the best practicable control technology currently available (BPT): (1) The concentration of pollutants discharged in mine drainage from mines producing 5000 metric tons (5512 short tons) or more of nickel bearing ores per year may not exceed: (2) The concentration of pollutants discharged in mine drainage from mines producing less than 5000 metric tons (5512 short tons) or discharged from mills processing less than 5000 metric tons (5512 short tons) of nickel ores per year by methods other than ore leaching may not exceed: (3) The concentration of pollutants discharged from mills processing 5000 metric tons (5512 short tons) or more of nickel ores per year by purely physical methods including ore crushing, washing, jigging, heavy media separation, and magnetic and electrostatic separation may not exceed: (4) The concentration of pollutants discharged from mills processing 5000 metric tons (5512 short tons) or more of nickel ore per year by froth flotation methods may not exceed: