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Water system · PWSID WA5389250

TRENTWOOD IRRIGATION DISTRICT 3

SPOKANE, WA · ~4,228 people served

Check your exact address → SPOKANE overview
52
Fair
PurityRadar safety score

PWSID

WA5389250

State

Washington

City

SPOKANE

Population served

4,228

Primary source

Groundwater

Score history

▼ 48 points — the score moved from 100 to 52 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 52

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 Mar 2024). Levels in parts per trillion (ppt).

PFOS

Perfluorooctanesulfonic acid

12 ppt

limit 4 ppt

Above EPA limit · 3.0×

PFOA

Perfluorooctanoic acid

5.1 ppt

limit 4 ppt

Above EPA limit · 1.3×

PFBS

4.9 ppt

limit —

No federal limit

PFHxA

4 ppt

limit —

No federal limit

PFPeA

3.9 ppt

limit —

No federal limit

Violations & enforcement

35

Violations on record

0

Unaddressed

0

Health-based

12

Enforcement actions

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

Monitoring & reporting · Nitrate began Jul 2025 Resolved
Other · EPA contaminant 7000 began Jul 2024 Resolved
Monitoring · Lead & Copper Rule began Jul 2023 Resolved
Other · EPA contaminant 7000 began Jul 2016 Resolved
Other · EPA contaminant 7000 began Jul 2015 Resolved
Monitoring & reporting · Nitrate began Jan 2015 Resolved
Other · EPA contaminant 7000 began Jul 2013 Resolved
Monitoring & reporting · Nitrate began Jan 2012 Resolved
Monitoring & reporting · EPA contaminant 2043 began Jan 2002 Resolved
Monitoring & reporting · EPA contaminant 2010 began Jan 2002 Resolved
Monitoring & reporting · EPA contaminant 2036 began Jan 2002 Resolved
Monitoring & reporting · EPA contaminant 2041 began Jan 2002 Resolved

Recent enforcement actions

  • State action · SOX Nov 2025
  • State action · SOX Feb 2025
  • State action · SOX Aug 2023
  • State action · SOX Oct 2016
  • State action · SOX Sep 2015
  • State action · SOX Apr 2015
  • State action · SOX Oct 2013
  • State action · SOX Apr 2013

This profile is built from EPA public records for system WA5389250 — 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.