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Water system · PWSID WI2670110

HARTFORD WATERWORKS

HARTFORD, WI · ~15,805 people served

Check your exact address → HARTFORD overview
65
Fair
PurityRadar safety score

PWSID

WI2670110

State

Wisconsin

City

HARTFORD

Population served

15,805

Primary source

Groundwater

Score history

▼ 35 points — the score moved from 100 to 65 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 65

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 Aug 2024). Levels in parts per trillion (ppt).

PFOA

Perfluorooctanoic acid

6.2 ppt

limit 4 ppt

Above EPA limit · 1.5×

PFOS

Perfluorooctanesulfonic acid

4.6 ppt

limit 4 ppt

Above EPA limit · 1.1×

PFHxS

Perfluorohexanesulfonic acid

3.9 ppt

limit 10 ppt

Below EPA limit

PFBS

3.2 ppt

limit —

No federal limit

Violations & enforcement

52

Violations on record

0

Unaddressed

1

Health-based

57

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Sep 2009. Official EPA record →

Max contaminant level (MCL) · Nitrate health-based began Jul 2005 Resolved
Other · EPA contaminant 7000 began Jul 2002 Resolved
Monitoring & reporting · Gross alpha began Jan 2002 Resolved
Monitoring & reporting · Gross alpha began May 2000 Resolved
Monitoring & reporting · Total coliform began Feb 2000 Resolved
Monitoring & reporting · Total coliform began Jul 1999 Resolved
Monitoring & reporting · Nitrate began Apr 1997 Resolved
Monitoring & reporting · Nitrate began Jul 1995 Resolved
Monitoring & reporting · EPA contaminant 2976 began Jan 1995 Resolved
Monitoring & reporting · EPA contaminant 2969 began Jan 1995 Resolved
Monitoring & reporting · EPA contaminant 2378 began Jan 1995 Resolved
Monitoring & reporting · EPA contaminant 2977 began Jan 1995 Resolved

Recent enforcement actions

  • State action · SOX Sep 2009
  • State action · SIF Aug 2005
  • State action · SIA Jul 2005
  • State action · SIE Jul 2005
  • State action · SO8 Jul 2005
  • State action · SOX Jul 2005
  • State action · SIF Nov 2002
  • State action · SIF Nov 2002

This profile is built from EPA public records for system WI2670110 — 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.