Interim rates for Arizona water districts
Rates for service in EPCOR's 11 water districts are set by the Arizona Corporation Commission (ACC) based on what it cost to provide your service anywhere from roughly five to 25 years ago. Operating costs have changed significantly in that time and more than $150 million has been spent to repair and replace the infrastructure—pipes, meters, valves, plants, etc.—that brings water to your home.
On March 28, 2019, the ACC ordered EPCOR approved interim rates to recover changes in operating costs since rates were last set in each district.
What does that mean for you?
Current rates for your district remain in effect and will continue to appear on your bill as they do today. Interim rates will appear as a surcharge on your bill, calculated based on your individual usage. You pay for as much water as you use – below is an example for residential customers:
Customer Notice published in the Daily News-Herald, Mohave Daily News, The Arizona Republic, Nogales International and Daily News Sun, February 7 & 8, 2019
Procedural Order—Sets a Hearing, February 1, 2019
Notice of Form of Customer Notice, January 31, 2019
Interim Rate Application, January 31, 2019
Procedural Order to Open a New Docket to Consider Interim Rates, January 25, 2019
The Arizona Corporation Commission (ACC) ordered EPCOR to file a new rate case by May 1, 2020.
To share your perspective on interim water rates, you can submit your comments by mail to the ACC, referencing Docket #WS-01303A-19-0011:
Arizona Corporation Commission
Consumer Services Section
1200 W Washington Street
Phoenix, AZ 85007
Comments can also be submitted by email. For instructions, visit