Drinking Water Program

The basis for the Water Program is the Water System Facility Plan (master plan), maintenance history maintained by the Engineering Division, and City participation in Joint Water Commission projects.

The City of Beaverton supplies water to approximately 67,000 or 79 percent of the 85,560 residents who live within the City limits. The remaining 21 percent of residents in Beaverton are supplied water by Tualatin Valley Water District (TVWD), West Slope Water District and the Raleigh Water District. The primary source of Beaverton’s City water supply is from the Joint Water Commission water treatment plant located south of Forest Grove. The City has a 25 percent ownership right in the facilities operated by the JWC, which entitles the City to up to 18.75 million gallons per day of treated drinking water.

Like the other water purveyor agency programs, the City of Beaverton’s Drinking Water Program includes both “increased-capacity” projects and “replacement” projects. The City’s water system is comprised of approximately 262 miles of piping ranging in size from 2 to 36 inches. The City’s ongoing replacement of old system components and expansion of the water infrastructure system will provide improved water service and fire protection to existing City water customers and increased water supply to ensure public health and accommodate expected growth.

The City of Beaverton maintains a total of 28.25 million gallons of stored water in five reservoirs, which is distributed by gravity from City reservoirs to customers. In addition, the City uses a natural storage system called Aquifer Storage and Recovery (ASR) to store up to an additional 450 million gallons of treated water. ASR involves pumping drinking water from the City’s water treatment plant (the same water we drink every day) into natural underground basalt formations, or aquifers, where it is stored for later use. ASR is a tool the City is using as an alternative means to increase water supply by up to 6 million gallons per day during the summer months. With current average City water demand of 8-9 million gallons per day, the City has more than a 4 day supply of stored water in reservoirs and ASR wells.

Increased-Capacity Projects

The Water System Facility Plan (master plan) identifies needed increased capacity improvements to provide safe, dependable water service to the City’s water customers in conjunction with the build-out of vacant land.

The plan recommends improvements in the water distribution system, storage and transmission system, and the water treatment system. Over the last several years the City has allocated considerable funding to Aquifer Storage and Recovery (ASR). ASR wells Nos. 1 and 4 act as virtual underground water storage reservoirs to supply water during the summer season. Water supplied by the City’s ASR wells will continue to help smooth out the summer’s water demand spikes through the 20-mile long transmission mains and from the JWC treatment plant.

Replacement Projects

The City has identified approximately 150,000 lineal feet (28.4 miles) of existing waterlines ranging in size from 2 to 18 inches and 1,850 fire hydrants that require replacement over the next 30 years. The goal of the replacement program is to replace all system piping, valves, and fire hydrants before the end of their useful life.

Funding

The Drinking Water Program is funded by the Water Construction Fund (505) that obtains revenue from Water System Development Charges (SDCs); the Water Debt Service Fund (funded by the proceeds of the water revenue bonds), and the Water Fund (501) that obtains revenue from water sales, water connection permits, and fees.

Water Service Providers

Water Service Providers Map  Large PDF File 

Cross Connection

Drinking Water

Water Conservation

Water Quality Reports

Water Fluoridation

Utilities in Rights of Way

Utility Billing

Utility Programs

Utility Projects (CIP)

Drinking Water Supply

Stormwater Annual Report, 06/07 (PDF)