SPO CO WATER DIST 3 SYS 1

Spokane, WA · ~18,983 people served

Check your exact address → Spokane overview

100

Excellent

PurityRadar safety score

PWSID

WA5393351

State

Washington

City

Spokane

Population served

18,983

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

Latest detections from EPA’s UCMR5 monitoring (through Sep 2023). Levels in parts per trillion (ppt).

Lithium

12,000 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement May 2018. Official EPA record →

Monitoring & reporting · Nitrate began Jan 2017 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Apr 2015 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Apr 2015 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2015 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2015 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Oct 2014 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Oct 2014 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Jul 2014 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Jul 2014 Resolved

Monitoring & reporting · EPA contaminant 2032 began Oct 2007 Resolved

Monitoring & reporting · EPA contaminant 2032 began Jul 2007 Resolved

Recent enforcement actions

State action · SOX May 2018
State action · SOX Jul 2015
State action · SOX Jul 2015
State action · SOX Jan 2008
State action · SOX Jan 2008
State action · SOX Jan 2008
State action · SOX Jan 2008
State action · SOX Jan 2008

This profile is built from EPA public records for system WA5393351 — 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.