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Water system · PWSID SD4602042

HURON COLONY

HURON, SD · ~95 people served

Check your exact address → HURON overview
100
Excellent
PurityRadar safety score

PWSID

SD4602042

State

South Dakota

City

HURON

Population served

95

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

275

Violations on record

0

Unaddressed

5

Health-based

384

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement May 2023. Official EPA record →

Monitoring & reporting · EPA contaminant 3014 began Jul 2022 Resolved
Max contaminant level (MCL) · Lead & Copper Rule health-based began Jul 2022 Resolved
Monitoring & reporting · Lead & Copper Rule began Dec 2019 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 2013 Resolved
Monitoring & reporting · EPA contaminant 3014 began Dec 2012 Resolved
Monitoring & reporting · EPA contaminant 3014 began Dec 2012 Resolved
Max contaminant level (MCL) · Total coliform health-based began Dec 2012 Resolved
Monitoring & reporting · Total coliform began Dec 2012 Resolved
Max contaminant level (MCL) · Total coliform health-based began Nov 2012 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 2012 Resolved
Monitoring & reporting · Total coliform began Sep 2009 Resolved
Other · EPA contaminant 7000 began Jul 2008 Resolved

Recent enforcement actions

  • State action · SOX May 2023
  • State action · SIF Aug 2022
  • State action · SIF Aug 2022
  • State action · SIE Aug 2022
  • State action · SIE Aug 2022
  • State action · SOX Jul 2022
  • State action · SOX Dec 2019
  • State action · SIA Nov 2019

This profile is built from EPA public records for system SD4602042 — 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.