StacksVerified U.S. regulatory reference

40 CFR §421.104

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
Any new source subject to this subpart shall achieve the following new source performance standards:
  1. (a)Subpart J—Tungstic Acid Rinse.
  2. (b)Subpart J—Acid Leach Wet Air Pollution
  3. (c)Subpart J—Alkali Leach Wash.
  4. (d)Subpart J—Alkali Leach Wash Condensate.
  5. (e)Subpart J—Ion Exchange Raffinate (Commingled With Other Process or Nonprocess Waters).
  6. (f)Subpart J—Ion Exchange Raffinate (Not Commingled With Other Process or Nonprocess Waters).
  7. (g)Subpart J—Calcium Tungstate Precipitate Wash.
  8. (h)Subpart J—Crystallization and Drying of Ammonium Paratungstate.
  9. (i)Subpart J—Ammonium Paratungstate Conversion to Oxides Wet Air Pollution Control.
  10. (j)Subpart J—Ammonium Paratungstate Conversion to Oxides Water of Formation.
  11. (k)Subpart J—Reduction to Tungsten Wet Air Pollution Control.
  12. (l)Subpart J—Reduction to Tungsten Water of Formation.
  13. (m)Subpart J—Tungsten Power Acid Leach and Wash.
  14. (n)Subpart J—Molybdenum Sulfide Precipitation Wet Air Pollution Control.