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Portland Water Bureau

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


1120 SW Fifth Ave, Suite 600, Portland, OR 97204

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Our Water Supply

By Lindsay Wochnick

Bull Run WatershedThis past weekend saw temperatures in Portland reach over 90 degrees with forecasts predicting the heat wave to continue throughout the week.

As Portlanders sip on their glasses of ice water to deal with the heat, you might have questions about our water supply and whether we have enough.

Portland is not experiencing a water supply shortage, nor do we expect to this summer.

Portland’s primary water source, the Bull Run watershed, gets most of its water from rain, not snow.

The Bull Run gets approximately 135 inches of rain each year, about three to four times more rain than we get here in town. Thanks to good planning, the Portland area has another high-quality water source in the Columbia South Shore Well Field. Both the Bull Run and Columbia South Shore Well Field meet or surpass federal standards for safe drinking water. Portland’s groundwater source can be used in addition to the Bull Run supply during dry periods.

The Portland Water Bureau will continue to carefully monitor water levels, weather forecasts, and water use patterns to ensure clean water for our customers. We will continue to update our customers throughout the summer about water supply.

Jaymee Cuti
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Spam Prevention In the Pacific Northwest, what state is Portland in?