The following new source performance standards shall apply to the post-mining areas of all new source coal mines:
(a) Reclamation areas. The standards of this subsection apply to discharges from reclamation areas at new source coal mines until SMCRA bond release. Except as provided in 40 CFR 401.17 and Secs. 434.61 and 434.63 (d)(2) of this part, the following new source performance standards shall be achieved for a discharge subject to the provisions of this subsection:
NSPS Effluent Limitations------------------------------------------------------------------------
Pollutant or pollutant property Limitations------------------------------------------------------------------------Settleable Solids......................... 0.5 ml/1 maximum not to be
exceeded.pH........................................ (\1\)------------------------------------------------------------------------(\1\) Within the range 6.0 to 9.0 at all times.
(b) Underground mine drainage. The standards in this subsection apply to discharges from the underground workings of new source underground mines until bond release.
(1) Except as provided in 40 CFR 401.17 and Secs. 434.61, 434.62, and 434.63 of this part, the following new source performance standards shall be achieved for the discharge of any acid or ferruginous mine drainage subject to this subsection:
NSPS Effluent Limitations------------------------------------------------------------------------
Average of
daily
Maximum for values for
Pollutant or pollutant property any 1 day 30
consecutive
days------------------------------------------------------------------------
Concentrations in mg/1
-------------------------Iron, total................................... 6.0 3.0Manganese, total.............................. 4.0 2.0TSS........................................... 70.0 35.0pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range 6.0 to 9.0 at all times.
(2) Except as provided in 40 CFR 401.17 and Secs. 434.61 and 434.63 of this part, the following new source performance standards shall be achieved for the discharge of any alkaline mine drainage subject to this subsection:
NSPS Effluent Limitations------------------------------------------------------------------------
Average of
daily
Maximum for values for
Pollutant or pollutant property any 1 day 30
consecutive
days------------------------------------------------------------------------
Concentrations in mg/1
-------------------------Iron, total................................... 6.0 3.0TSS........................................... 70.0 35.0pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range 6.0 to 9.0 at all times.