[Code of Federal Regulations] [Title 40, Volume 28] [Revised as of July 1, 2006] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR421.34] [Page 470-472] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 421_NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY--Table of Contents Subpart C_Secondary Aluminum Smelting Subcategory Sec. 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 ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day 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 ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day 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 ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day 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 ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/kg (lb/million lbs) of aluminum demagged ------------------------- Lead.......................................... 0.216 0.100 [[Page 471]] 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 ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day 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 ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day 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 ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day 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 ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day 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 ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day 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. [[Page 472]] NSPS ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day 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]