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Pretreatment Committee


Clean and sustainable sewer infrastructure and waterways throughout Arizona




The Pretreatment Committee's mission is to effectively and sustainably protect the Publicly Owned Treatments Works systems, and waterways as well as providing a platform for education, collaboration, and support from agencies and policy makers within the State of Arizona through four pillars of pretreatment.




The Pretreatment Committee has established four pillars with the following goals:


  • Educational Awareness- Provide a training and educational base for all public agency and private stakeholders.
  • Effectiveness- Ensure every POTW establish and maintains an effective industrial pretreatment.
  • National Presence- Establish Arizona as a national leader in industrial pretreatment through 360 degree communication with out of state programs, as well as participation in national conferences and training, and regular dialogue with our EPA coordinator.
  • Quality-Apply a common sense platform for that promotes a consistent, efficient, and sustainable base for program functionality.


Committee Officers


Chair Person Vice Chair Person Secretary Outreach/Webster

Richard Dalton

City of Tempe

Phone: (480) 350-2851

Lee Robinson

City of Glendale

Phone: (623) 930-4779

Christina Gonzalez 

CDM Smith 

Phone: (602) 821-7847

Nathan Ellis


Phone: (623) 587-5298



For questions about this page, please contact Nathan Ellis:  


AZ FOG Group

The AZ Water Association's Pretreatment Committee hosts the Arizona Fats, Oils, and Grease (AZFOG) Group. The AZFOG Group comprises municipal pretreatment agencies, public and private sewer districts, non-hazardous liquid waste haulers, treatment facilities, and manufacturers of treatment devices and is independent of the AZ Water Association.


Click here to go to the AZFOG Group's home page.

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