§301.441. Water Quality Based Effluent Limitation  


Latest version.
  • "Water Quality Based Effluent Limitation" or "WQBEL" is a limit imposed in a permit so that the applicable water quality standard, criteria or value is not exceeded outside of a designated mixing zone.

     

(Source:  Amended at 47 Ill. Reg. 4415, effective March 23, 2023)