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Water system · PWSID 055295705

SAND HILL

100
Excellent
PurityRadar safety score

PWSID

055295705

State

Wisconsin

City

ONEIDA

Population served

38

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

91

Violations on record

0

Unaddressed

1

Health-based

15

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Nov 2025. Official EPA record →

Monitoring & reporting · EPA contaminant 2037 began Jul 2025 Resolved
Monitoring & reporting · EPA contaminant 2035 began Jul 2025 Resolved
Monitoring & reporting · EPA contaminant 2036 began Jul 2025 Resolved
Monitoring & reporting · EPA contaminant 2020 began Jul 2025 Resolved
Monitoring & reporting · EPA contaminant 2033 began Jul 2025 Resolved
Monitoring & reporting · EPA contaminant 2034 began Jul 2025 Resolved
Monitoring & reporting · EPA contaminant 2005 began Jul 2025 Resolved
Monitoring & reporting · EPA contaminant 2031 began Jul 2025 Resolved
Monitoring & reporting · EPA contaminant 2010 began Jul 2025 Resolved
Monitoring & reporting · EPA contaminant 2015 began Jul 2025 Resolved
Monitoring & reporting · EPA contaminant 2032 began Jul 2025 Resolved
Monitoring & reporting · EPA contaminant 2039 began Jul 2025 Resolved

Recent enforcement actions

  • EPA/federal action · EOX Nov 2025
  • EPA/federal action · EIA Nov 2025
  • EPA/federal action · EIA Nov 2025
  • EPA/federal action · EOX Nov 2025
  • EPA/federal action · EOX Sep 2016
  • EPA/federal action · EOX Aug 2015
  • EPA/federal action · EOX Apr 2011
  • EPA/federal action · EIE Feb 2011

This profile is built from EPA public records for system 055295705 — 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.