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):
(a) The concentration of pollutants discharged in mine drainage from tungsten mines shall not exceed:
| Effluent characteristic
| Effluent limitations
|
|---|
| Maximum for any 1 day
| Average of daily values for 30 consecutive days
|
|---|
| | Milligrams per liter
|
| Cd | 0.10 | 0.05
|
| Cu | 0.30 | 0.15
|
| Zn | 1.0 | 0.5 |
(b) The concentration of pollutants discharged from mills shall not exceed:
| Effluent characteristic
| Effluent limitations
|
|---|
| Maximum for any 1 day
| Average of daily values for 30 consecutive days
|
|---|
| | Milligrams per liter
|
| Cd | 0.10 | 0.05
|
| Cu | 0.3 | 0.15
|
| Zn | 1.0 | 0.5 |
authority: Secs. 301, 304(b), (c) and (e), 306, 307, and 501 of the Clean Water Act (The Federal Water Pollution Control Act Amendments of 1972, as amended by the Clean Water Act of 1977 and the Water Quality Act of 1987), (the Act),
33 U.S.C. 1311,
1314,
c,
1316,
1317,
and; 86 Stat. 816, Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217; 101 Stat. 7, Pub. L. 100-4
source: 47 FR 54609, Dec. 3, 1982, unless otherwise noted.
cite as: 40 CFR 440.63