467.12—Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
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 for the core operation and for the ancillary operations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available:
|
mg/off-kg (lb/million off-lbs) of aluminum rolled with neat oils |
| Chromium |
0.0360 |
0.0147 |
| Cyanide |
0.0237 |
0.0098 |
| Zinc |
0.119 |
0.0498 |
| Aluminum |
0.525 |
0.257 |
| Oil and grease |
1.634 |
0.980 |
| Suspended solids |
3.348 |
1.593 |
| pH |
(1) |
(1) |
|
1 Within the range of 7.0 to 10 at all times. |
|
mg/off-kg (lb/million off-lbs) of aluminum rolled with neat oils |
| Chromium |
0.0244 |
0.010 |
| Cyanide |
0.0161 |
0.0067 |
| Zinc |
0.0808 |
0.0338 |
| Aluminum |
0.356 |
0.174 |
| Oil and grease |
1.11 |
0.664 |
| Suspended solids |
2.27 |
1.079 |
| pH |
(1) |
(1) |
|
1 Within the range of 7.0 to 10 at all times. |
|
mg/off-kg (lb/million off-lbs) of aluminum sheet cast by continuous methods |
| Chromium |
0.00086 |
0.00035 |
| Cyanide |
0.00057 |
0.00024 |
| Zinc |
0.0029 |
0.0012 |
| Aluminum |
0.0127 |
0.0063 |
| Oil and grease |
0.0393 |
0.0236 |
| Suspended solids |
0.0805 |
0.0383 |
| pH |
(1) |
(1) |
|
1 Within the range of 7.0 to 10 at all times. |
|
mg/off-kg (lb/million off-lbs) of aluminum quenched |
| Chromium |
3.39 |
1.39 |
| Cyanide |
2.24 |
0.93 |
| Zinc |
11.25 |
4.70 |
| Aluminum |
49.55 |
24.66 |
| Oil and grease |
154.10 |
92.46 |
| Suspended solids |
315.91 |
150.25 |
| pH |
(1) |
(1) |
|
1 Within the range of 7.0 to 10 at all times. |
|
mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched |
| Chromium |
0.079 |
0.032 |
| Cyanide |
0.052 |
0.022 |
| Zinc |
0.262 |
0.110 |
| Aluminum |
1.15 |
0.573 |
| Oil and grease |
3.58 |
2.15 |
| Suspended solids |
7.34 |
3.49 |
| pH |
(1) |
(1) |
|
1 Within the range of 7.0 to 10 at all times. |
|
mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched |
| Chromium |
6.12 |
2.51 |
| Cyanide |
4.04 |
1.67 |
| Zinc |
20.31 |
8.49 |
| Aluminum |
89.46 |
44.52 |
| Oil and grease |
278.24 |
166.95 |
| Suspended solids |
570.39 |
271.29 |
| pH |
(1) |
(1) |
|
1 Within the range of 7.0 to 10 at all times. |
|
mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched |
| Chromium |
7.00 |
2.86 |
| Cyanide |
4.61 |
1.91 |
| Zinc |
23.22 |
9.70 |
| Aluminum |
102.24 |
50.88 |
| Oil and grease |
318.00 |
190.80 |
| Suspended solids |
651.90 |
310.05 |
| pH |
(1) |
(1) |
|
1 Within the range of 7.0 to 10 at all times. |
Code of Federal Regulations
[48 FR 49149, Oct. 24, 1983; 49 FR 11631 and 11632, Mar. 27, 1984]
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 for the core operation and for the ancillary operations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available:
|
mg/off-kg (lb/million off-lbs) of aluminum rolled with neat oils |
| Chromium |
0.0360 |
0.0147 |
| Cyanide |
0.0237 |
0.0098 |
| Zinc |
0.119 |
0.0498 |
| Aluminum |
0.525 |
0.257 |
| Oil and grease |
1.634 |
0.980 |
| Suspended solids |
3.348 |
1.593 |
| pH |
(1) |
(1) |
|
1 Within the range of 7.0 to 10 at all times. |
|
mg/off-kg (lb/million off-lbs) of aluminum rolled with neat oils |
| Chromium |
0.0244 |
0.010 |
| Cyanide |
0.0161 |
0.0067 |
| Zinc |
0.0808 |
0.0338 |
| Aluminum |
0.356 |
0.174 |
| Oil and grease |
1.11 |
0.664 |
| Suspended solids |
2.27 |
1.079 |
| pH |
(1) |
(1) |
|
1 Within the range of 7.0 to 10 at all times. |
|
mg/off-kg (lb/million off-lbs) of aluminum sheet cast by continuous methods |
| Chromium |
0.00086 |
0.00035 |
| Cyanide |
0.00057 |
0.00024 |
| Zinc |
0.0029 |
0.0012 |
| Aluminum |
0.0127 |
0.0063 |
| Oil and grease |
0.0393 |
0.0236 |
| Suspended solids |
0.0805 |
0.0383 |
| pH |
(1) |
(1) |
|
1 Within the range of 7.0 to 10 at all times. |
|
mg/off-kg (lb/million off-lbs) of aluminum quenched |
| Chromium |
3.39 |
1.39 |
| Cyanide |
2.24 |
0.93 |
| Zinc |
11.25 |
4.70 |
| Aluminum |
49.55 |
24.66 |
| Oil and grease |
154.10 |
92.46 |
| Suspended solids |
315.91 |
150.25 |
| pH |
(1) |
(1) |
|
1 Within the range of 7.0 to 10 at all times. |
|
mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched |
| Chromium |
0.079 |
0.032 |
| Cyanide |
0.052 |
0.022 |
| Zinc |
0.262 |
0.110 |
| Aluminum |
1.15 |
0.573 |
| Oil and grease |
3.58 |
2.15 |
| Suspended solids |
7.34 |
3.49 |
| pH |
(1) |
(1) |
|
1 Within the range of 7.0 to 10 at all times. |
|
mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched |
| Chromium |
6.12 |
2.51 |
| Cyanide |
4.04 |
1.67 |
| Zinc |
20.31 |
8.49 |
| Aluminum |
89.46 |
44.52 |
| Oil and grease |
278.24 |
166.95 |
| Suspended solids |
570.39 |
271.29 |
| pH |
(1) |
(1) |
|
1 Within the range of 7.0 to 10 at all times. |
|
mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched |
| Chromium |
7.00 |
2.86 |
| Cyanide |
4.61 |
1.91 |
| Zinc |
23.22 |
9.70 |
| Aluminum |
102.24 |
50.88 |
| Oil and grease |
318.00 |
190.80 |
| Suspended solids |
651.90 |
310.05 |
| pH |
(1) |
(1) |
|
1 Within the range of 7.0 to 10 at all times. |
Code of Federal Regulations
[48 FR 49149, Oct. 24, 1983; 49 FR 11631 and 11632, Mar. 27, 1984]