Is Tap Water Safe to Drink in Spokane?
Yes, tap water in Spokane is safe to drink and exceptionally clean. The city pumps from the Spokane Valley–Rathdrum Prairie Aquifer, a designated sole-source aquifer so pure that the only treatment needed is light chlorination.
Water Source
The City of Spokane pumps from wells tapping the Spokane Valley–Rathdrum Prairie Aquifer, a massive, fast-flowing gravel aquifer running from Lake Pend Oreille in Idaho beneath the Spokane Valley — an EPA-designated sole-source aquifer.
EPA Compliance Status
Meets all federal Safe Drinking Water Act standards.
Notable Contaminants & Context
- •No significant contaminant concerns in city supply; the aquifer's raw water is drinking-quality with minimal treatment
- •PFAS from firefighting foam near Fairchild Air Force Base affected separate systems and private wells to the west (Airway Heights), not the City of Spokane's wells
- •Aquifer protection zoning restricts risky land uses above the recharge area
How It Compares
Spokane is one of a small group of US cities whose raw source water is clean enough to need essentially disinfection only — comparable to protected-watershed systems like Portland or Boston, but from groundwater.
Tips
- •No filter is needed for safety; the water is prized locally for taste
- •If you're in Airway Heights or on a private well west of town, check PFAS advisories — that's a separate system from city water
- •Spokane publishes annual water quality reports and aquifer protection updates
Frequently Asked Questions
Sources & References
The safety rating and guidance on this page draw on the following sources. See our full methodology.
- •US EPA Safe Drinking Water Act regulations
- •EWG Tap Water Database
- •The utility's most recent Consumer Confidence Report (CCR)
- •WHO Guidelines for Drinking-water Quality