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Water system · PWSID WA5315400

COULEE DAM WATER DEPT

Coulee Dam, WA · ~1,454 people served

Check your exact address → Coulee Dam overview
100
Excellent
PurityRadar safety score

PWSID

WA5315400

State

Washington

City

Coulee Dam

Population served

1,454

Primary source

Surface water

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 100

2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.

PFAS & contaminant readings

No PFAS detections are on record for this system from EPA’s UCMR5 monitoring (2023–25). Absence of a detection isn’t a guarantee — not every system was sampled, and this dataset doesn’t cover other contaminants.

Violations & enforcement

3

Violations on record

0

Unaddressed

1

Health-based

6

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Sep 2015. Official EPA record →

Other · EPA contaminant 7000 began Jul 2015 Resolved
Other · EPA contaminant 7000 began Oct 1999 Resolved
Treatment technique · EPA contaminant 0200 health-based began Jan 1992 Resolved

Recent enforcement actions

  • State action · SOX Sep 2015
  • EPA/federal action · EOX Dec 2001
  • State action · SFL Jan 2000
  • EPA/federal action · EOX Dec 1999
  • State action · SFK Dec 1996
  • State action · SFK Nov 1993

This profile is built from EPA public records for system WA5315400 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.