NISQUALLY-LESCHI & WEST NISQUALLY

OLYMPIA, WA · ~3,200 people served

Check your exact address → OLYMPIA overview

100

Excellent

PurityRadar safety score

PWSID

105300014

State

Washington

City

OLYMPIA

Population served

3,200

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

424

Violations on record

Unaddressed

Health-based

Enforcement actions

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

Other · EPA contaminant 7500 began Apr 2025 Resolved

Treatment technique · EPA contaminant 5200 health-based began Oct 2024 Resolved

Monitoring & reporting · EPA contaminant 0999 began Jul 2024 Resolved

Monitoring · Lead & Copper Rule began Jul 2024 Resolved

Monitoring & reporting · Lead & Copper Rule began Oct 2023 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2023 Resolved

Monitoring & reporting · Nitrate began Jan 2023 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2023 Resolved

Monitoring & reporting · Nitrate began Jan 2023 Resolved

Reporting · Lead & Copper Rule began Mar 2022 Resolved

Monitoring & reporting · Nitrate began Jan 2022 Resolved

Recent enforcement actions

EPA/federal action · EOX May 2025
EPA/federal action · EOX May 2025
EPA/federal action · EOX Dec 2024
EPA/federal action · EOX Sep 2024
EPA/federal action · EOX Sep 2024
EPA/federal action · EOX Aug 2024
EPA/federal action · EOX Aug 2024
EPA/federal action · EOX Aug 2024

This profile is built from EPA public records for system 105300014 — 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.