Home/ Directory/ WA/ COWICHE WATER ASSOCIATION

Water system · PWSID WA5304316

COWICHE WATER ASSOCIATION

Yakima, WA · ~48 people served

Check your exact address → Yakima overview
100
Excellent
PurityRadar safety score

PWSID

WA5304316

State

Washington

City

Yakima

Population served

48

Primary source

Groundwater

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

37

Violations on record

0

Unaddressed

0

Health-based

13

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Aug 2023. Official EPA record →

Monitoring · Lead & Copper Rule began Jul 2023 Resolved
Other · EPA contaminant 7000 began Jul 2019 Resolved
Monitoring · Lead & Copper Rule began Jun 2019 Resolved
Monitoring · Lead & Copper Rule began Sep 2018 Resolved
Monitoring & reporting · EPA contaminant 2980 began Jan 2005 Resolved
Monitoring & reporting · EPA contaminant 2981 began Jan 2005 Resolved
Monitoring & reporting · EPA contaminant 2982 began Jan 2005 Resolved
Monitoring & reporting · EPA contaminant 2968 began Jan 2005 Resolved
Monitoring & reporting · EPA contaminant 2976 began Jan 2005 Resolved
Monitoring & reporting · EPA contaminant 2969 began Jan 2005 Resolved
Monitoring & reporting · EPA contaminant 2979 began Jan 2005 Resolved
Monitoring & reporting · EPA contaminant 2380 began Jan 2005 Resolved

Recent enforcement actions

  • State action · SOX Aug 2023
  • State action · SOX Oct 2019
  • State action · SOX Jul 2019
  • State action · SOX Oct 2018
  • State action · SOX May 2009
  • State action · SOX May 2009
  • State action · SOX May 2009
  • State action · SOX May 2009

This profile is built from EPA public records for system WA5304316 — 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.