StacksVerified U.S. regulatory reference

40 CFR §421.154

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)Solvent extraction raffinate from bertrandite ore.
  2. (b)Solvent extraction raffinate from beryl ore.
  3. (c)Beryllium carbonate filtrate.
  4. (d)Beryllium hydroxide filtrate.
  5. (e)Beryllium oxide calcining furnace wet air pollution control.
  6. (f)Beryllium hydroxide supernatant.
  7. (g)Process water.
  8. (h)Fluoride furnace scrubber.
  9. (i)Chip treatment wastewater.
  10. (j)Beryllium pebble plant area vent wet air pollution control.
  11. (k)Beryl Ore Gangue Dewatering.
  12. (l)Bertrandite Ore Gangue Dewatering.
  13. (m)Beryl Ore Processing.
  14. (n)Aluminum Iron Sludge (AIS) Area Wastewater.
  15. (o)Bertrandite Ore Leaching Scrubber.
  16. (p)Bertrandite Ore Countercurrent and Decantation (CCD) Scrubber.