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). The concentration of pollutants discharged in mine drainage from mines producing bauxite ores shall not exceed: ------------------------------------------------------------------------
Effluent limitations
-------------------------
Average of
daily
Effluent characteristic Maximum for values for
any 1 day 30
consecutive
days------------------------------------------------------------------------
Milligrams per liter
-------------------------Fe (total).................................... 1.0 0.5Al............................................ 2.0 1.0------------------------------------------------------------------------