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In May 2019, a joint application between EPCOR and Brooke Water was filed with the Arizona Corporation Commission (ACC) requesting the sale of the assets and service area of Brooke Water to EPCOR.

The request to transfer ownership from Brooke to EPCOR was approved by the ACC on July 22, 2020, which regulates all private water utilities in Arizona.


​Located in unincorporated La Paz County, Brooke is located near the Town of Parker along the Colorado River in western Arizona. Just 45 minutes away from EPCOR's existing water service area in Lake Havasu City, Brooke provides water service to approximately 2,100 customers.

EPCOR has a 125-year history of providing safe and reliable service and we're looking forward to welcoming Brooke customers into the EPCOR family as early as late spring 2020. Until then, Brooke will continue to provide water service as it does today.

Benefits to customers
​With 132 awards for safety and operational excellence, our priority is providing safe and reliable service for our customers. But safety and reliability aren't the only benefits customers receive with EPCOR. Every day, our dedicated team of water and customer service professionals delivers:
  • Around-the-clock service and emergency response
  • Dedicated and locally based customer service 24 hours a day, 7 days a week
  • Personal account access and management through our website and our mobile app
  • Local operations and water quality expertise, supported by more than 160 Arizona-based and certified operations and engineering professionals
  • Continuous and planned infrastructure maintenance and repairs to get ahead of problems before they occur
Proposed rates

Rates for private utilities in Arizona, like Brooke and EPCOR, are based on actual costs and capital investments that occurred at a past point in time. In 2017 Brooke filed an application to update rates – that application was put on hold by the ACC while a transfer of ownership was explored. In 2019, Brooke's rate application was combined with EPCOR's request to acquire and the proposed rates in Brooke's application were updated for costs and investments through September 2019. The ACC approved changes to Brooke's water rates on July 22, 2020 – before EPCOR acquired Brooke. The ACC also approved the sale of the Brooke Water assets to EPCOR, to be included in EPCOR's Havasu district. As part of EPCOR's Havasu district, Brooke will be considered along with all other EPCOR water customers in EPCOR's current 2020 rate case.

The last time Brooke changed rates was more than 25 years ago – costs have changed quite a bit since then. Brooke had a rate change request in with the ACC before EPCOR agreed to acquire the system. The ACC reviewed Brooke's rate change request at the same time that it reviewed EPCOR's application to acquire the system.

The ACC ultimately made that decision on July 22, 2020 and the new Brooke rates became effective on August 1, 2020.  The average Parker-region customers in the Havasu district using an average of 2,438 gallons a month would see a monthly increase of roughly $8. Customers using 7,000 gallons a month would see an increase of roughly $12. 

You'll find a detailed list of rates for Parker-area customers of the Havasu district here.

The regulatory process

Private utilities in Arizona, including Brooke and EPCOR, are regulated by the ACC through a public process that includes a detailed review, a public hearing, and opportunities for customers to be involved in the process. In October 2019, each Brooke and Havasu customer received a copy of the Procedural Notice that provides the application timeline and details, including:

A decision by the ACC is not expected until spring 2020, at the earliest.