StacksVerified U.S. regulatory reference

40 CFR §421.326

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
Except as provided in 40 CFR 403.7, any new source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources. The mass of wastewater pollutants in secondary uranium process wastewater introduced into a POTW shall not exceed the following values:
  1. (a)Refinery sump filtrate.
  2. (b)Slag leach reslurry.
  3. (c)Solvent extraction raffinate filtrate.
  4. (d)Digestion wet air pollution control.
  5. (e)Evaporation and denitration wet air pollution control.
  6. (f)Hydrofluorination alkaline scrubber.
  7. (g)Hydrofluorination water scrubber.
  8. (h)Magnesium reduction and casting floor wash.
  9. (i)Laundry wastewater.