Where does my water come from?

Residents within City Limits who live on the east side of the Sammamish River drink mostly well water pumped from aquifers, also referred to as “groundwater”.

Residents within City Limits who live on the west side of the Sammamish River drink water from Seattle’s Tolt Reservoir, over 20 miles away in the Cascade Mountains east of Duvall. This supply is also referred to as “surface water”.

Residents in the un-incorporated area of Redmond Ridge and Trilogy receive their water from the Tolt Reservoir as well.

Show All Answers

1. What’s in my water? Is it safe to drink?
2. Is there fluoride in my water?
3. Do I need a water filter in my home?
4. Why is there chlorine in the water?
5. Where does my water come from?
6. Do I have hard or soft water?
7. Why does my water sometimes have an odd taste and other times it doesn’t?