(a) Except as provided in 40 CFR 125.30-125.32, and Secs. 434.61, 434.62 and 434.63 of this part, the following limitations establish the concentration or quality of pollutants which may be discharged by any existing coal preparation plant and coal preparation plant associated areas subject to the provisions of this subpart after application of the best available technology economically achievable if discharges from such point sources normally exhibit a pH of less than 6.0 prior to treatment:
BAT Effluent Limitations------------------------------------------------------------------------
Average of
daily
Maximum for values for
Pollutant or pollutant property any 1 day 30
consecutive
days------------------------------------------------------------------------
Concentration in mg/l
-------------------------Iron, total................................... 7.0 3.5Manganese, total.............................. 4.0 2.0------------------------------------------------------------------------
(b) Except as provided in 40 CFR 125.30-125.32, and Secs. 434.61 and 434.63 of this part, the following limitations establish the concentration or quality of pollutants which may be discharged by any existing coal preparation plant and coal preparation plant associated areas subject to the provisions of this subpart after application of the best available technology economically achievable if discharges from such point sources normally exhibit a pH equal to or greater than 6.0 prior to treatment:
BAT Effluent Limitations------------------------------------------------------------------------
Average of
daily
Maximum for values for
Pollutant or pollutant property any 1 day 30
consecutive
days------------------------------------------------------------------------
Concentration in mg/l
-------------------------Iron, total................................... 7.0 3.5------------------------------------------------------------------------