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 ) 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 ) 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 ) 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 ) 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 ) 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 ) 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 ) 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 ) 1 Within 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 ) 1 Within 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 ) 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]