Title 40 Part 434 → Subpart D
Title 40 → Chapter I → Subchapter N → Part 434 → Subpart D
Electronic Code of Federal Regulations e-CFR
Title 40 Part 434 → Subpart D
e-CFR data is current as of June 3, 2020
Title 40 → Chapter I → Subchapter N → Part 434 → Subpart D |
Title 40: Protection of Environment
PART 434—COAL MINING POINT SOURCE CATEGORY BPT, BAT, BCT LIMITATIONS AND NEW SOURCE PERFORMANCE STANDARDS
Subpart D—Alkaline Mine Drainage
Contents
§434.40 Applicability; description of the alkaline mine drainage subcategory.
§434.41 [Reserved]
§434.42 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).
§434.43 Effluent limitations guidelines representing the degree of effluent reduction attainable by application of the best available technology economically achievable (BAT).
§434.44 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology (BCT). [Reserved]
§434.45 New source performance standards (NSPS).
Back to Top§434.40 Applicability; description of the alkaline mine drainage subcategory.
§434.41 [Reserved]
§434.42 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).
Except as provided in 40 CFR 125.30-125.32, 40 CFR 401.17, and §§434.61 and 434.63 of this part, the following limitations establish the concentration or quality of pollutants which may be discharged by a point source subject to the provisions of this subpart after application of the best practicable control technology currently available:
BPT Effluent Limitations
| Pollutant or pollutant property | Maximum for any 1 day | Average of daily values for 30 consecutive days |
|---|---|---|
| Concentration in mg/l | ||
| Iron, total | 7.0 | 3.5 |
| TSS | 70. | 35. |
| pH | (1) | (1) |
1Within the range 6.0 to 9.0 at all times.
§434.43 Effluent limitations guidelines representing the degree of effluent reduction attainable by application of the best available technology economically achievable (BAT).
Except as provided in 40 CFR 125.30-125.32, and §§434.61 and 434.63 of this part, the following limitations establish the concentration or quality of pollutants which may be discharged by a point source subject to the provisions of this subpart after application of the best available technology economically achievable:
BAT Effluent Limitations
| Pollutant or pollutant property | Maximum for any 1 day | Average of daily values for 30 consecutive days |
|---|---|---|
| Concentration in mg/l | ||
| Iron, total | 7.0 | 3.5 |
§434.44 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology (BCT). [Reserved]
§434.45 New source performance standards (NSPS).
Except as provided in 40 CFR 401.17 and §§434.61 and 434.63 of this part, the following new source performance standards shall be achieved for any discharge from a new source subject to this subpart:
NSPS Effluent Limitations
| Pollutant or pollutant property | Maximum for any 1 day | Average of daily values for 30 consecutive days |
|---|---|---|
| Concentration in mg/l | ||
| Iron, total | 6.0 | 3.0 |
| TSS | 70.0 | 35.0 |
| pH | (1) | (1) |
1Within the range 6.0 to 9.0 at all times.