Epcor Secures 100-Year Water Supply, Unlocking West Valley Growth

The West Valley just got a major boost for housing development.

Key Takeaways:

  • Epcor USA has been granted Arizona’s first Alternative Designation of Assured Water Supply (ADAWS), paving the way for up to 60,000 new homes.
  • Governor Katie Hobbs signed the 100-year designation, ensuring long-term water reliability for over 140,000 residents in Epcor’s service area.
  • The designation covers territories from Sun City to I-10 along Loop 303, including parts of Buckeye, Goodyear, Surprise, north Peoria, and Glendale.
  • Epcor uses groundwater, Colorado River allocations, and reclaimed “A+” class treated wastewater—which can be recharged into the aquifer and reused as drinking water.
  • The initiative is part of a larger effort to address development slowdowns caused by previous groundwater restrictions in the Phoenix AMA.
  • Developers like Elliott Homes are already preparing to move forward on projects such as Granite Vista in Buckeye.
  • Meanwhile, Buckeye and Queen Creek are working to import water from Harquahala Valley to support continued regional growth.

Why It Matters for Investors:
The 100-year designation provides certainty for builders and investors in an area previously constrained by water policy. With water access assured, West Valley development—including single-family construction—is expected to accelerate again, supporting both housing supply and rental market growth.

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