420.103—Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT).
Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
(a) Cold rolling mills—
(1) Recirculation—single stand.
Subpart J
|
Kg/kkg (pounds per 1,000 lb) of product |
| Chromium 1
|
0.0000209 |
0.0000084 |
| Lead |
0.0000094 |
0.0000031 |
| Nickel 1
|
0.0000188 |
0.0000063 |
| Zinc |
0.0000063 |
0.0000021 |
| Naphthalene |
0.0000021 |
|
| Tetrachloroethylene |
0.0000031 |
|
|
1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold rolling wastewaters are treated with descaling or combination acid pickling wastewaters. |
(2) Recirculation—multiple stands.
Subpart J
|
Kg/kkg (pounds per 1,000 lb) of product |
| Chromium 1
|
0.000104 |
0.0000418 |
| Lead |
0.0000469 |
0.0000156 |
| Nickel 1
|
0.0000939 |
0.0000313 |
| Zinc |
0.0000313 |
0.0000104 |
| Naphthalene |
0.0000104 |
|
| Tetrachloroethylene |
0.0000156 |
|
|
1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold rolling wastewaters are treated with descaling or combination acid pickling wastewaters. |
Subpart J
|
Kg/kkg (pounds per 1,000 lb) of product |
| Chromium 1
|
0.00125 |
0.000501 |
| Lead |
0.000563 |
0.000188 |
| Nickel 1
|
0.00113 |
0.000376 |
| Zinc |
0.000376 |
0.000125 |
| Naphthalene |
0.000125 |
|
| Tetrachloroethylene |
0.000188 |
|
Code of Federal Regulations
440
|
|
1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold rolling wastewaters are cotreated with descaling or combination acid pickling wastewaters. |
(4) Direct application—single stand.
Subpart J
|
Kg/kkg (pounds per 1,000 lb) of product |
| Chromium 1
|
0.000376 |
0.000150 |
| Lead |
0.000169 |
0.0000563 |
| Nickel 1
|
0.000338 |
0.000113 |
| Zinc |
0.000113 |
0.0000376 |
| Naphthalene |
0.0000376 |
|
| Tetrachloroethylene |
0.0000563 |
|
|
1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold rolling wastewaters are treated with descaling or combination acid pickling wastewaters. |
(5) Direct application—multiple stands.
Subpart J
|
Kg/kkg (pounds per 1,000 lb) of product |
| Chromium 1
|
0.00167 |
0.000668 |
| Lead |
0.000751 |
0.000250 |
| Nickel 1
|
0.00150 |
0.000501 |
| Zinc |
0.000501 |
0.000167 |
| Naphthalene |
0.000167 |
|
| Tetrachloroethylene |
0.000250 |
|
|
1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold rolling wastewaters are treated with descaling or combination acid pickling wastewaters. |
(b) Cold worked pipe and tube—
(1) Using water.
Subpart J
|
Kg/kkg (pounds per 1,000 lb) of product |
| Chromium 1
|
0.0000209 |
0.0000084 |
| Lead |
0.0000094 |
0.0000031 |
| Nickel 1
|
0.0000188 |
0.0000063 |
| Zinc |
0.0000063 |
0.0000021 |
|
1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold forming wastewaters are treated with descaling or combination acid pickling wastewaters. |
Subpart J
|
Kg/kkg (pounds per 1,000 lb) of product |
| Chromium 1
|
0.0000209 |
0.0000084 |
| Lead |
0.0000094 |
0.0000031 |
| Nickel 1
|
0.0000188 |
0.0000063 |
| Zinc |
0.0000063 |
0.0000021 |
| Naphthalene |
0.0000021 |
|
| Tetrachloroethylene |
0.0000031 |
|
|
1 The limitations for chromium and nickel shall be applicable in lieu of those for lead and zinc when cold forming wastewaters are treated with descaling or combination acid pickling wastewaters. |
[47 FR 23284, May 27, 1982, as amended at 49 FR 21035, May 17, 1984]