The following new source performance standards shall apply to the post-mining areas of all new source coal mines:
Except as provided in 40 CFR 401.17 and §§ 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.
NSPS Effluent Limitations
Pollutant or pollutant property | Maximum for any 1 day | Average of daily values for 30 consecutive days |
Concentrations in mg/1 | ||
Iron, total | 6.0 | 3.0 |
Manganese, total | 4.0 | 2.0 |
TSS | 70.0 | 35.0 |
pH | (1) | (1) |
1 Within the range 6.0 to 9.0 at all times.
NSPS Effluent Limitations
Pollutant or pollutant property | Maximum for any 1 day | Average of daily values for 30 consecutive days |
Concentrations in mg/1 | ||
Iron, total | 6.0 | 3.0 |
TSS | 70.0 | 35.0 |
pH | (1) | (1) |
1 Within the range 6.0 to 9.0 at all times.
40 C.F.R. §434.55