GENERAL INFORMATION: 503-823-7404
1120 SW Fifth Ave, Suite 600, Portland, OR 97204
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, PWB is prepared to meet the range of potential supply and demand conditions that could occur in the Portland water system this summer.
July 28, 2015 Update: There are 5 billion gallons, or about 50% of usable storage in the Bull Run Reservoirs. This is below the historic average, but still above historic lows for this time of year. Based on demand and supply projections, the Portland Water Bureau began utilizing groundwater for supply augmentation purposes on July 16th. This will likely continue until the Bull Run receives significant precipitation. Groundwater augmentation currently represents approximately 25% of the total daily water demand. On July 30th, groundwater use will increase to approximately 40% of total daily demand. The increase is based on future supply and demand conditions along with long range weather forecasts. Fortunately, Portland’s drinking water source, the Bull Run supply, in combination with groundwater from the Columbia South Shore Well Field, is capable of meeting Portland’s water needs throughout the summer.
Usable Storage - Portland's Bull Run Reservoirs have 16.8 billion gallons of total storage; of that, 9.9 billion gallons are considered usable for drinking water.
Average Daily Storage - The average amount of usable drinking water storage on a daily basis using historical data from 1976-2014
Lowest Daily Storage - The lowest daily level of usable drinking water storage from 1976-2014.
July 6, 2015
Information about ways to use water wisely.