The source of our water supply varies throughout the year, depending on the season, weather, snowpack level, inflows and water storage conditions.
Our average available supply is 110 million gallons per day. The average use is 55 million gallons per day.
The maximum amount of water available by source is shown below.
- Green River – 72 million gallons per day
- 7 North Fork wells (alternative Green River supply) – 84 million gallons per day
- Local wells – 59 million gallons per day
- Interruptible Green River supply – 27 million gallons per day
Water Supply Conditions as of August 6, 2019
Enough water is expected for people and fish this summer and into fall, even though some parts of Washington State are experiencing drought conditions. Natural flows into the upper Green River have been near the third lowest on record however, our raw water reservoir refilled completely this spring. We have also experienced cooler conditions than average around early July, and above-normal overall precipitation in July. We encourage you to consider the environment and continue using water wisely.
To learn more about your water supply, see the following pages: