421.294—Standards of performance for new sources.
Any new source subject to this subpart shall achieve the following new source performance standards:
(a)
Tin smelter SO2 scrubber.
NSPS for the Secondary Tin Subcategory
|
mg/kg (pounds per million pounds) of crude tapped tin produced |
| Arsenic |
12.790 |
5.703 |
| Lead |
2.575 |
1.196 |
| Iron |
11.040 |
5.611 |
| Tin |
3.495 |
2.024 |
| Total suspended solids |
138.000 |
110.400 |
| pH |
(1) |
(1) |
|
1 Within the range of 7.5 to 10.0 at all times. |
NSPS for the Secondary Tin Subcategory
|
mg/kg (pounds per million pounds) of dealuminized scrap produced |
| Lead |
0.010 |
0.005 |
| Cyanide (total) |
0.007 |
0.003 |
| Fluoride |
1.225 |
0.697 |
| Tin |
0.013 |
0.008 |
| Total suspended solids |
0.525 |
0.420 |
| pH |
(1) |
(1) |
|
1 Within the range of 7.5 to 10.0 at all times. |
(c)
Tin mud acid neutralization filtrate.
NSPS for the Secondary Tin Subcategory
|
mg/kg (pounds per million pounds) of neutralized dewatered tin mud produced |
| Lead |
1.413 |
0.656 |
| Cyanide (total) |
1.009 |
0.404 |
| Fluoride |
176.600 |
100.400 |
| Tin |
1.918 |
1.110 |
| Total suspended solids |
75.710 |
60.560 |
| pH |
(1) |
(1) |
|
1 Within the range of 7.5 to 10.0 at all times. |
NSPS for the Secondary Tin Subcategory
|
mg/kg (pounds per million pounds) of tin hydroxide washed |
| Lead |
3.347 |
1.554 |
| Cyanide (total) |
2.391 |
0.956 |
| Fluoride |
418.400 |
237.900 |
| Tin |
4.542 |
2.630 |
| Total suspended solids |
179.300 |
143.400 |
| pH |
(1) |
(1) |
|
1 Within the range of 7.5 to 10.0 at all times. |
(e)
Spent electrowinning solution from new scrap.
NSPS for the Secondary Tin Subcategory
|
mg/kg (pounds per million pounds) of cathode tin produced |
| Lead |
4.704 |
2.184 |
| Cyanide (total) |
3.360 |
1.344 |
| Fluoride |
588.000 |
334.300 |
| Tin |
6.384 |
3.696 |
| Total suspended solids |
252.000 |
201.600 |
| pH |
(1) |
(1) |
|
1 Within the range of 7.5 to 10.0 at all times. |
(f)
Spent electrowinning solution from municipal solid waste.
NSPS for the Secondary Tin Subcategory
|
mg/kg (pounds per million pounds) of MSW scrap used as raw material |
| Lead |
0.033 |
0.015 |
| Cyanide (total) |
0.024 |
0.010 |
| Fluoride |
4.165 |
2.368 |
| Tin |
0.045 |
0.026 |
| Total suspended solids |
1.785 |
1.428 |
| pH |
(1) |
(1) |
|
1 Within the range of 7.5 to 10.0 at all times. |
(g)
Tin hydroxide supernatant from scrap.
NSPS for the Secondary Tin Subcategory
|
mg/kg (pounds per million pounds) of tin metal recovered from scrap |
| Lead |
15.580 |
7.233 |
| Cyanide (total) |
11.130 |
4.451 |
| Fluoride |
1,947.000 |
1,107.000 |
| Tin |
21.140 |
12.240 |
| Total suspended solids |
834.600 |
667.700 |
| pH |
(1) |
(1) |
|
1 Within the range of 7.5 to 10.0 at all times. |
(h)
Tin hydroxide supernatant from plating solutions and sludges.
NSPS for the Secondary Tin Subcategory
|
mg/kg (pounds per million pounds) of tin metal recovered from plating solutions and sludges |
| Lead |
32.20 |
14.95 |
| Cyanide (total) |
23.00 |
9.20 |
| Fluoride |
4,025.00 |
2,289.00 |
| Tin |
43.70 |
25.30 |
| Total suspended solids |
1,725.00 |
1,380.00 |
| pH |
(1) |
(1) |
|
1 Within the range of 7.5 to 10.0 at all times. |
(i)
Tin hydroxide filtrate.
NSPS for the Secondary Tin Subcategory
|
mg/kg (pounds per million pounds) of tin metal produced |
| Lead |
7.012 |
3.256 |
| Cyanide (total) |
5.009 |
2.004 |
| Fluoride |
876.500 |
498.400 |
| Tin |
9.517 |
5.510 |
| Total suspended solids |
375.700 |
300.500 |
| pH |
(1) |
(1) |
|
1 Within the range of 7.5 to 10.0 at all times. |