Regional Water

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The Regional Water Supply System

Regional SourceThe Regional Water Supply system includes the Chelan County PUD, East Wenatchee Water District and the City of Wenatchee. These three entities work cooperatively through a management committee to ensure a safe and secure source of water for the Wenatchee area now and into the future. The water supply for all three entities originates from the same groundwater source called the Eastbank Aquifer.

The Eastbank Aquifer
The Eastbank Aquifer is located near Lincoln Rock State Park, approximately 10 miles north of Wenatchee in Douglas County. It is the primary source of drinking water for the area. Aquifers such as the Eastbank function as a natural filter and underground storage for water. The Eastbank Aquifer is continuously re-charged by the Columbia River and currently supplies an average of 10.5 million gallons per day to Wenatchee Valley. The level of groundwater in the aquifer has remained consistent since 1983 when the first gallon of water was pumped. This is strong support that the ultimate capacity of the aquifer can greatly exceed the area’s demands.  In addition to the main water supply the Regional System has two backup wells in Wenatchee and three backup wells in East Wenatchee.

Second Source Project
To meet the needs of existing water customers and future growth in the Wenatchee valley for the next fifty years, the Regional Water Supply is looking for a second water source. The preferred location for this second water source is on Chelan County PUD property near the west bank of Rock Island Dam. In 2016, a contractor will begin drilling test wells and installing pumps to predict the capacity of the aquifer.  For more information on the project please click here.
Well House at Regional Source
The City of Wenatchee is fortunate to have high-quality water in ample supply. To ensure that safe drinking water is delivered to your home, the City of Wenatchee administers a number of programs required by Washington State Department of Health including Cross-Connection Control, Water Use Efficiency, and Wellhead Protection.

Wellhead Protection Program
The Wellhead Protection Program is a management plan designed and administered by the City to help ensure that the area in and around the Eastbank Aquifer is maintained in a manner that will protect this valuable resource. Local residents and businesses are updated regularly on issues pertaining to safe business practices and the identification of and the proper response to potential threats to the health of the aquifer.


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