Pretreatment Program

The city of Surprise owns and operates water reclamation facilities (WRFs) which convert wastewater to water that can be reused for other purposes. The treatment facilities are designed to reduce the quantities of organic materials, solids, and nitrogen in the wastewater, making it suitable for reuse or recharge to the aquifer. Unfortunately, WRFs are vulnerable to toxic or harmful pollutants from residential, commercial, and industrial users.

The objectives of the City’s Pretreatment Program are to:

  • facilitate the control of pollutant discharges into the collection system
  • resolve collection system blockage and capacity reduction issues
  • protect the treatment facilities from upsets
  • maintain high effluent and biosolids quality
  • protect plant workers, the environment, and the public while promoting good relationships with its users