Water Source

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 Nov. 8, 2019 

Fall weather returned to the Green River watershed mid-October, with a significant rainfall.

Conditions have been dry since around Oct. 26.

This summer, flows into the upper Green River hovered near the 3rd lowest on record since 1963. Above-normal rain in September improved our water supply and we finished the water year (Oct. 1 to Sept. 30) with close to average total rain.

To learn more about your water supply, see the following pages: