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Water system · PWSID NE3108904

ONEILL, CITY OF

O'NEILL, NE · ~3,705 people served

Check your exact address → O'NEILL overview
100
Excellent
PurityRadar safety score

PWSID

NE3108904

State

Nebraska

City

O'NEILL

Population served

3,705

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 Oct 2023). Levels in parts per trillion (ppt).

Lithium

10,100 ppt

limit —

No federal limit

Violations & enforcement

16

Violations on record

0

Unaddressed

15

Health-based

65

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jan 2021. Official EPA record →

Max contaminant level (MCL) · Lead & Copper Rule health-based began May 2018 Resolved
Max contaminant level (MCL) · Lead & Copper Rule health-based began Sep 2016 Resolved
Max contaminant level (MCL) · Lead & Copper Rule health-based began Jul 2016 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jan 2016 Resolved
Max contaminant level (MCL) · Total coliform health-based began Nov 2015 Resolved
Max contaminant level (MCL) · Total coliform health-based began Aug 2015 Resolved
Max contaminant level (MCL) · Total coliform health-based began Nov 2013 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 2013 Resolved
Max contaminant level (MCL) · Total coliform health-based began Dec 2011 Resolved
Max contaminant level (MCL) · Total coliform health-based began Nov 2011 Resolved
Max contaminant level (MCL) · Total coliform health-based began Dec 2010 Resolved
Max contaminant level (MCL) · Total coliform health-based began Nov 2004 Resolved

Recent enforcement actions

  • EPA/federal action · EOX Jan 2021
  • State action · SOX Jul 2018
  • State action · SIF Jun 2018
  • State action · SIE May 2018
  • State action · SIA May 2018
  • State action · SOX Jan 2018
  • State action · SOX Jun 2017
  • State action · SOX Jun 2017

This profile is built from EPA public records for system NE3108904 — 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.