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 practicable control technology currently available.
(a) Cold rolling mills—
(1) Recirculation—single stand.
Subpart J
|
Kg/kkg (pounds per 1,000 lb) of product |
| TSS |
0.00125 |
0.000626 |
| O&G |
0.000522 |
0.000209 |
| 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 |
|
| pH |
(2) |
(2) |
|
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 Within the range of 6.0 to 9.0. |
(2) Recirculation—multiple stands.
Subpart J
|
Kg/kkg (pounds per 1,000 lb) of product |
| TSS |
0.00626 |
0.00313 |
| O&G |
0.00261 |
0.00104 |
| 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 |
|
| pH |
(2) |
(2) |
|
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 Within the range of 6.0 to 9.0. |
Subpart J
|
Kg/kkg (pounds per 1,000 lb) of product |
| TSS |
0.0751 |
0.0376 |
| O&G |
0.0313 |
0.0125 |
| 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 |
|
| pH |
(2) |
(2) |
|
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. |
|
2 Within the range of 6.0 to 9.0. |
(4) Direct application—single stand.
Subpart J
|
Kg/kkg (pounds per 1,000 lb) of product |
| TSS |
0.0225 |
0.0113 |
| O&G |
0.00939 |
0.00376 |
| 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 |
|
| pH |
(2) |
(2) |
|
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 Within the range of 6.0 to 9.0. |
(5) Direct application—multiple stands.
Subpart J
|
Kg/kkg (pounds per 1,000 lb) of product |
| TSS |
0.100 |
0.0501 |
| O&G |
0.0417 |
0.0167 |
| 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 |
|
| pH |
(2) |
(2) |
|
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 Within the range of 6.0 to 9.0. |
(b) Cold worked pipe and tube—
(1) Using water.
Subpart J
|
Kg/kkg (pounds per 1,000 lb) of product |
| TSS |
0.00125 |
0.000626 |
| O&G |
0.000522 |
0.000209 |
| Chromium 1
|
0.0000209 |
0.0000084 |
| Lead |
0.0000094 |
0.0000031 |
| Nickel 1
|
0.0000188 |
0.0000063 |
| Zinc |
0.0000063 |
0.0000021 |
| pH |
(2) |
(2) |
|
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. |
|
2 Within the range of 6.0 to 9.0. |
Subpart J
|
Kg/kkg (pounds per 1,000 lb) of product |
| TSS |
0.00125 |
0.000626 |
| O&G |
0.000522 |
0.000209 |
| 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 |
|
| pH |
(2) |
(2) |
|
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. |
|
2 Within the range of 6.0 to 9.0. |
[47 FR 23284, May 27, 1982, as amended at 49 FR 21034, May 17, 1984; 49 FR 24726, June 15, 1984]
