421.34—Standards of performance for new sources.
Any new source subject to this subpart shall achieve the following new source performance standards:
(a)
Subpart C—Scrap Drying Wet Air Pollution Control.
NSPS
|
mg/kg (pounds per million pounds) of aluminum scrap dried |
| Lead |
.000 |
.000 |
| Zinc |
.000 |
.000 |
| Aluminum |
.000 |
.000 |
| Ammonia (as N) |
.000 |
.000 |
| Total suspended solids |
.000 |
.000 |
| Oil and grease |
.000 |
.000 |
| pH |
(1) |
(1) |
|
1 Within the range of 7.0 to 10.0 at all times |
(b)
Subpart C—Scrap Screening and Milling.
NSPS
|
mg/kg (pounds per million pounds) of aluminum scrap screened and milled |
| Lead |
.000 |
.000 |
| Zinc |
.000 |
.000 |
| Aluminum |
.000 |
.000 |
| Ammonia (as N) |
.000 |
.000 |
| Total suspended solids |
.000 |
.000 |
| Oil and grease |
.000 |
.000 |
| pH |
(1) |
(1) |
|
1 Within the range of 7.0 to 10.0 at all times. |
(c)
Subpart C—Dross Washing.
NSPS
|
mg/kg (pounds per million pounds) of dross washed |
| Lead |
.000 |
.000 |
| Zinc |
.000 |
.000 |
| Aluminum |
.000 |
.000 |
| Ammonia (as N) |
.000 |
.000 |
| Total suspended solids |
.000 |
.000 |
| Oil and grease |
.000 |
.000 |
| pH |
(1) |
(1) |
|
1 Within the range of 7.0 to 10.0 at all times. |
(d)
Subpart C—Demagging Wet Air Pollution Control.
NSPS
|
mg/kg (lb/million lbs) of aluminum demagged |
| Lead |
0.216 |
0.100 |
| Zinc |
0.786 |
0.324 |
| Aluminum |
4.711 |
2.090 |
| Ammonia (as N) |
102.800 |
45.180 |
| Total suspended solids |
11.570 |
9.252 |
| Oil and grease |
7.710 |
7.710 |
| pH |
(1) |
(1) |
|
1 Within the range of 7.0 to 10.0 at all times. |
(e)
Subpart C—Delacquering Wet Air Pollution Control.
NSPS
|
mg/kg (pounds per million pounds) of aluminum delacquered |
| Lead |
0.093 |
0.043 |
| Zinc |
0.340 |
0.140 |
| Aluminum |
2.035 |
0.903 |
| Ammonia (as N) |
44.389 |
19.514 |
| Total phenolics (4-AAP method) 1
|
0.004 |
|
| Total suspended solids |
4.995 |
3.996 |
| Oil and grease |
3.330 |
3.330 |
| pH |
(2) |
(2) |
|
1 At the source. |
|
2 Within the range of 7.0 to 10.0 at all times. |
(f)
Subpart C—Direct Chill Casting Contact Cooling.
NSPS
|
mg/kg (pounds per million pounds) of aluminum cast |
| Lead |
.372 |
.173 |
| Zinc |
1.356 |
.558 |
| Aluminum |
8.120 |
3.602 |
| Ammonia (as N) |
177.200 |
77.880 |
| Total suspended solids |
19.940 |
15.950 |
| Oil and grease |
13.290 |
13.290 |
| pH |
(1) |
(1) |
|
1 Within the range of 7.0 to 10.0 at all times. |
(g)
Subpart C—Ingot Conveyor Casting Contact Cooling (When Chlorine Demagging Wet Air Pollution Control is Not Practiced On-Site).
NSPS
|
mg/kg (lb/million lbs) of aluminum cast |
| Lead |
0.019 |
0.009 |
| Zinc |
0.068 |
0.028 |
| Aluminum |
0.409 |
0.182 |
| Ammonia (as N) |
8.931 |
3.926 |
| Total suspended solids |
1.005 |
0.804 |
| Oil and grease |
0.670 |
0.670 |
| pH |
(1) |
(1) |
|
1 Within the range of 7.0 to 10.0 at all times. |
(h)
Subpart C—Ingot Conveyor Casting Contact Cooling (When Chlorine Demagging Wet Air Pollution Control is Practiced On Site).
NSPS
|
mg/kg (pounds per million pounds) of aluminum cast |
| Lead |
.000 |
.000 |
| Zinc |
.000 |
.000 |
| Aluminum |
.000 |
.000 |
| Ammonia (as N) |
.000 |
.000 |
| Total suspended solids |
.000 |
.000 |
| Oil and grease |
.000 |
.000 |
| pH |
(1) |
(1) |
|
1Within the range of 7.0 to 10.0 at all times. |
(i)
Subpart C—Stationary Casting Contact Cooling.
NSPS
|
mg/kg (pounds per million pounds) of aluminum cast |
| Lead |
.000 |
.000 |
| Zinc |
.000 |
.000 |
| Aluminum |
.000 |
.000 |
| Ammonia (as N) |
.000 |
.000 |
| Total suspended solids |
.000 |
.000 |
| Oil and grease |
.000 |
.000 |
| pH |
(1) |
(1) |
|
1Within the range of 7.0 to 10.0 at all times. |
(j)
Subpart C—Shot Casting Contact Cooling.
NSPS
|
mg/kg (pounds per million pounds) of aluminum cast |
| Lead |
.000 |
.000 |
| Zinc |
.000 |
.000 |
| Aluminum |
.000 |
.000 |
| Ammonia (as N) |
.000 |
.000 |
| Total suspended solids |
.000 |
.000 |
| Oil and grease |
.000 |
.000 |
| pH |
(1) |
(1) |
|
1 Within the range of 7.0 to 10.0 at all times. |
[49 FR 8796, Mar. 8, 1984, as amended at 49 FR 29794, July 24, 1984; 52 FR 25559, July 7, 1987]