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Water system · PWSID SD4602176

CENTENNIAL HILLS HOME ASSOCIATION

SPEARFISH, SD · ~25 people served

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

PWSID

SD4602176

State

South Dakota

City

SPEARFISH

Population served

25

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

23

Violations on record

0

Unaddressed

15

Health-based

72

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Dec 2012. Official EPA record →

Max contaminant level (MCL) · Total coliform health-based began Oct 2012 Resolved
Max contaminant level (MCL) · Total coliform health-based began Nov 2010 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 2010 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jul 2009 Resolved
Monitoring & reporting · Total coliform began Nov 2008 Resolved
Other · EPA contaminant 7000 began Jul 2008 Resolved
Other · EPA contaminant 7500 began Dec 2007 Resolved
Monitoring & reporting · Total coliform began Oct 2007 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 2007 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 2007 Resolved
Max contaminant level (MCL) · Total coliform health-based began Aug 2007 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jul 2007 Resolved

Recent enforcement actions

  • State action · SOX Dec 2012
  • State action · SIF Oct 2012
  • State action · SIE Oct 2012
  • State action · SOX Jun 2011
  • State action · SOX Jun 2011
  • State action · SIF Dec 2010
  • State action · SIE Nov 2010
  • State action · SIF Oct 2010

This profile is built from EPA public records for system SD4602176 — 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.