View all text of Subpart C [§ 421.30 - § 421.37]
§ 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
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average. | 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) |
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1 Within the range of 7.0 to 10.0 at all times
(b) Subpart C—Scrap Screening and Milling.
NSPS
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | 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) |
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1 Within the range of 7.0 to 10.0 at all times.
(c) Subpart C—Dross Washing.
NSPS
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | 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) |
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1 Within the range of 7.0 to 10.0 at all times.
(d) Subpart C—Demagging Wet Air Pollution Control.
NSPS
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | 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) |
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1 Within the range of 7.0 to 10.0 at all times.
(e) Subpart C—Delacquering Wet Air Pollution Control.
NSPS
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | 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) |
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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
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | 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) |
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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
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | 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) |
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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
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | 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) |
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1Within the range of 7.0 to 10.0 at all times.
(i) Subpart C—Stationary Casting Contact Cooling.
NSPS
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | 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) |
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1Within the range of 7.0 to 10.0 at all times.
(j) Subpart C—Shot Casting Contact Cooling.
NSPS
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | 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) |
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1 Within the range of 7.0 to 10.0 at all times.