JEFFERSON WATER DISTRICT

JEFFERSON, NY · ~300 people served

Check your exact address → JEFFERSON overview

100

Excellent

PurityRadar safety score

PWSID

NY4700095

State

New York

City

JEFFERSON

Population served

300

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 Jun 2022. Official EPA record →

Monitoring · Lead & Copper Rule began Feb 2022 Resolved

Monitoring & reporting · Nitrate began Jan 2016 Resolved

Monitoring & reporting · Total coliform began May 2015 Resolved

Other began Sep 2013 Resolved

Monitoring & reporting · Total coliform began Sep 2013 Resolved

Monitoring & reporting · Total coliform began Dec 2012 Resolved

Monitoring & reporting · Nitrate began Jan 2012 Resolved

Other began Oct 2010 Resolved

Monitoring & reporting · Total coliform began Oct 2010 Resolved

Monitoring & reporting · Total coliform began Sep 2010 Resolved

Other began Sep 2010 Resolved

Other began Aug 2010 Resolved

Recent enforcement actions

State action · SFJ Jun 2022
State action · SOX Jun 2022
State action · SIE Jun 2022
State action · SOX Oct 2017
State action · SIF Mar 2017
State action · SFJ Mar 2017
State action · SIE Mar 2017
State action · SFJ Aug 2015

This profile is built from EPA public records for system NY4700095 — 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.