WASHINGTON STATE UNIVERSITY

Pullman, WA · ~21,506 people served

Check your exact address → Pullman overview

100

Excellent

PurityRadar safety score

PWSID

WA5393200

State

Washington

City

Pullman

Population served

21,506

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 Apr 2025). Levels in parts per trillion (ppt).

Lithium

12,800 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jan 2008. Official EPA record →

Monitoring & reporting · EPA contaminant 2032 began Oct 2007 Resolved

Monitoring & reporting · EPA contaminant 2032 began Jul 2007 Resolved

Monitoring & reporting · EPA contaminant 2032 began Apr 2007 Resolved

Monitoring & reporting · EPA contaminant 2032 began Jan 2007 Resolved

Recent enforcement actions

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
State action · SIB Sep 1985
State action · SO8 Sep 1985
State action · SIC Sep 1985

This profile is built from EPA public records for system WA5393200 — 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.