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Water system · PWSID NE3107902

GRAND ISLAND, CITY OF

GRAND ISLAND, NE · ~51,478 people served

Check your exact address → GRAND ISLAND overview
40
Action needed
PurityRadar safety score

PWSID

NE3107902

State

Nebraska

City

GRAND ISLAND

Population served

51,478

Primary source

Groundwater

Score history

▼ 60 points — the score moved from 100 to 40 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 40

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).

PFHxS

Perfluorohexanesulfonic acid

25 ppt

limit 10 ppt

Above EPA limit · 2.5×

PFOS

Perfluorooctanesulfonic acid

7.1 ppt

limit 4 ppt

Above EPA limit · 1.8×

Lithium

17,600 ppt

limit —

No federal limit

PFBS

4.8 ppt

limit —

No federal limit

PFPeA

3.4 ppt

limit —

No federal limit

Violations & enforcement

5

Violations on record

0

Unaddressed

2

Health-based

10

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Oct 2011. Official EPA record →

Monitoring & reporting · EPA contaminant 4030 began Apr 2010 Resolved
Monitoring & reporting · Uranium began Apr 2010 Resolved
Monitoring & reporting · Gross alpha began Jan 2008 Resolved
Max contaminant level (MCL) · EPA contaminant 2977 health-based began Jan 2001 Resolved
Treatment technique · Lead & Copper Rule health-based began Jan 1998 Resolved

Recent enforcement actions

  • State action · SOX Oct 2011
  • State action · SOX Jun 2011
  • State action · SOX Jun 2011
  • State action · SOX Jun 2003
  • State action · SIF Sep 2001
  • State action · SIA Sep 2001
  • State action · SIE Sep 2001
  • State action · SF3 Jan 1999

This profile is built from EPA public records for system NE3107902 — 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.