Spokane Valley, Washington

Water Quality in Spokane Valley, Washington

Watershed: Chester Creek – Spokane River

What is the water quality like in Spokane Valley, WA?

Let’s dive deeper into what’s in Spokane Valley water.

What’s in Spokane Valley water?

Here are the top 5 chemical compounds in your water and what health issues they can potentially cause:

1. Arsenic – Potential effect: Cancer
2. Hexavalent Chromium – Potential effect: Cancer
3. Radium – Potential effect: Cancer
4. Radon – Potential effect: Cancer
5. Total trihalomethanes – Potential effect: Cancer

These are five of the 15 contaminants analyzed by the Environmental Working Group (ewg.org).

9 of these contaminants are rated as exceeding EWG Health Guidelines.

See the What Can You Do? section below for all of the contaminants you can filter out and how to do it.

Where does Spokane Valley’s water come from?

Spokane Valley’s water comes from the Chester Creek – Spokane River watershed.

All 3 EPA assessed water sources in the Chester Creek – Spokane River watershed are in Impaired condition. These include three segments of the Spokane River, which runs East-West to the north of Spokane Valley’s city center.

Ideally, a water source would be rated in Good condition.

Whether a water source is in Impaired or Good condition refers to the quality of these uses:

1. Drinking Water
2. Aquatic Life
3. Fish and Shellfish Consumption
4. Recreation

Learn more from How’s My Waterway

See below for what you can do to improve Spokane Valley’s water.

Conclusion – What Can You Do?

Information about water quality can be surprising.

But there’s no reason to lose hope. There are things you can do in your household as well as things you can do at a community level.

In Your Household:

• Use Berkey filters with activated carbon to filter out 12 of the 15 contaminants in your drinking water.
  • Berkey filters can also remove up to 99.99% of Lead in Spokane Valley water.
  • Brita can filter 6 contaminants (and Lead depending on the filter).
  • Note: We may receive a commission if you decide to purchase filters through links on this page.
• To filter out 12 of the 15 contaminants in your whole house, consider a Reverse Osmosis water filtration system for your home.
  • These are more expensive than pitchers to purchase, but can be more effective.
  • They have the benefit of filtering out heavy hitters like:
    • Arsenic – health risks
    • Barium – health risks in water
    • Bromodichloromethane – health risks in drinking water
    • Bromoform
    • Chloroform – side effects
    • Chromium (total)
    • Dibromochloromethane
    • Fluoride
    • Hexavalent chromium – health effects
    • Molybdenum
    • Nitrate
    • Nitrite
    • Radium
    • Radon
    • Selenium – health risks
    • Strontium
    • Total trihalomethanes – byproduct of chlorination*

*Chlorination is an effective method of disinfecting/treating drinking water. You can then use a water filter to reduce the effects of chlorination byproducts to get the safest, cleanest water possible.

In Your Community:

Contact your local government officials and put pressure on them to invest in cleaner waterways and upgraded city water filtration and treatment.

Go to: https://spokanevalley.org/ to find contact information for your local officials.

Water Quality in Other Washington Cities

Washington Water Quality Page