KNAPPA WATER ASSOCIATION

ASTORIA, OR · ~1,800 people served

Check your exact address → ASTORIA overview

100

Excellent

PurityRadar safety score

PWSID

OR4100061

State

Oregon

City

ASTORIA

Population served

1,800

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

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jan 2024. Official EPA record →

Monitoring · Lead & Copper Rule began Nov 2023 Resolved

Monitoring · Lead & Copper Rule began Jul 2022 Resolved

Monitoring & reporting · Lead & Copper Rule began Oct 2021 Resolved

Monitoring & reporting · Total coliform began Mar 2000 Resolved

Monitoring & reporting · Total coliform began Oct 1998 Resolved

Monitoring & reporting · Total coliform began Dec 1997 Resolved

Recent enforcement actions

State action · SOX Jan 2024
State action · SOX Aug 2022
State action · SOX Jun 2022
State action · SOX Sep 2016
State action · SOX Jul 2001
State action · SOX Jul 2001
State action · SOX Jul 2001
State action · SFJ Aug 1992

This profile is built from EPA public records for system OR4100061 — 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.