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Water system · PWSID WA5355550

MODEL IRRIGATION DIST #18

Spokane, WA · ~7,903 people served

Check your exact address → Spokane overview
91
Excellent
PurityRadar safety score

PWSID

WA5355550

State

Washington

City

Spokane

Population served

7,903

Primary source

Groundwater

Score history

▼ 9 points — the score moved from 100 to 91 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 91

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

PFAS & contaminant readings

Latest detections from EPA’s UCMR5 monitoring (through Jun 2025). Levels in parts per trillion (ppt).

PFOA

Perfluorooctanoic acid

4.2 ppt

limit 4 ppt

Above EPA limit · 1.0×

Lithium

10,000 ppt

limit —

No federal limit

PFPeA

5.8 ppt

limit —

No federal limit

PFHxA

3.9 ppt

limit —

No federal limit

PFBS

3 ppt

limit —

No federal limit

Violations & enforcement

169

Violations on record

0

Unaddressed

0

Health-based

21

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jul 2025. Official EPA record →

Other · EPA contaminant 7000 began Jul 2024 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 2022 Resolved
Other · EPA contaminant 7000 began Jul 2015 Resolved
Monitoring & reporting · EPA contaminant 2982 began Jan 2008 Resolved
Monitoring & reporting · EPA contaminant 2980 began Jan 2008 Resolved
Monitoring & reporting · EPA contaminant 2979 began Jan 2008 Resolved
Monitoring & reporting · EPA contaminant 2969 began Jan 2008 Resolved
Monitoring & reporting · EPA contaminant 2378 began Jan 2008 Resolved
Monitoring & reporting · EPA contaminant 2964 began Jan 2008 Resolved
Monitoring & reporting · EPA contaminant 2968 began Jan 2008 Resolved
Monitoring & reporting · EPA contaminant 2977 began Jan 2008 Resolved
Monitoring & reporting · EPA contaminant 2380 began Jan 2008 Resolved

Recent enforcement actions

  • State action · SOX Jul 2025
  • State action · SOX Feb 2025
  • State action · SOX Sep 2015
  • State action · SOX Jun 2011
  • State action · SOX Jun 2011
  • State action · SOX Jun 2011
  • State action · SOX Jun 2011
  • State action · SOX Jun 2011

This profile is built from EPA public records for system WA5355550 — 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.