treated wastewater, definition of

Wastewater that has been subjected to one or more physical, chemical, and biological processes to reduce its potential of being health hazard.

• Snow Made With Treated Wastewater Covers Ski Slopes in Arizona
  A ski resort in Arizona has been angling to use artificial snow to bolster its slopes for the last seven years, but a slew of legal issues has prevented them from doing so – until now...