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The City of Portland, Oregon

Portland Water Bureau

From forest to faucet, we deliver the best drinking water in the world.

Customer Service: 503-823-7770


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Seasonal Water Supply Planning

  • Bull Run Reservoirs Store 9.9 Billion Gallons of Drinking Water.

  • Portland's secondary source of high quality groundwater can be used to supplement summer demand when needed

Each year, the Portland Water Bureau develops a Seasonal Water Supply Augmentation and Contingency Plan. This plan evaluates the availability of water from the Bull Run and groundwater sources, projected weather forecasts, and water demands to guide management of the drinking water system. Between careful management and the region’s strong conservation efforts, the Water Bureau is prepared to meet the range of potential supply and demand conditions that could occur in the Portland water system this season.

 July 22, 2020 Update: There are approximately 9.2 billion gallons of drinking water in the Bull Run Reservoirs. This, along with available augmentation and contingency resources, is anticipated to provide enough water to meet our customer’s needs.

The graph below shows the usable storage in the Bull Run reservoirs for 2020 (red) compared to the average level (green), and 2015 (yellow) and 2019 (blue), recent supply stressing summers.

Usable Storage year to date

Water Efficiency Information

Information about ways to use water wisely.