LAMONTAI IMPROVEMENT WTR DIST

COTTAGE GROVE, OR · ~255 people served

Check your exact address → COTTAGE GROVE overview

100

Excellent

PurityRadar safety score

PWSID

OR4100238

State

Oregon

City

COTTAGE GROVE

Population served

255

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 Aug 2024. Official EPA record →

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

Other · EPA contaminant 7000 began Oct 2023 Resolved

Monitoring & reporting · Uranium began Jan 2017 Resolved

Monitoring & reporting · Gross alpha began Jan 2017 Resolved

Monitoring & reporting · Combined radium-226/228 began Jan 2017 Resolved

Monitoring & reporting · EPA contaminant 3028 began Jan 2012 Resolved

Monitoring & reporting · Total coliform began Dec 2009 Resolved

Max contaminant level (MCL) · Total coliform health-based began Jun 2005 Resolved

Monitoring & reporting · Total coliform began Jun 2005 Resolved

Recent enforcement actions

State action · SOX Aug 2024
State action · SOX Dec 2023
State action · SIF Sep 2021
State action · SIF Aug 2020
State action · SOX Jul 2017
State action · SOX Feb 2013
State action · SIA Feb 2013
State action · SOX Jan 2010

This profile is built from EPA public records for system OR4100238 — 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.