ZIP Code Lookup

Water quality in ZIP 98161

Seattle, Washington · 2 utilities serving 1,390,961 residents

Utilities serving this ZIP

Click any utility for full water quality details, contaminant testing data, treatment plant contact information, and recommended filters.

C
67/100

SEATTLE PUBLIC UTILITIES

Serves 1,161,961 residents · Seattle, WA

  • Haloacetic acids (HAA9) significantly above health guideline
  • Haloacetic acids (HAA5) significantly above health guideline
  • Total trihalomethanes (TTHMs) significantly above health guideline
View full report →
D
55/100

Spokane Water Utilities

Serves 229,000 residents · Spokane, WA

  • Lead detected in source water
  • Arsenic significantly above health guideline
  • Chromium-6 detected
View full report →

Wondering what's in your water?

Every utility above publishes an annual Consumer Confidence Report (CCR) listing contaminants found in your water. Click any utility to see:

  • Detected contaminants and how they compare to health guidelines
  • Treatment plant contact information and water quality officer
  • Recent SDWA violations and resolution status
  • Filter recommendations matched to your specific water profile

Read our water safety guides →