BICENTENNIAL TRAILER COURT

SPEARFISH, SD · ~23 people served

Check your exact address → SPEARFISH overview

100

Excellent

PurityRadar safety score

PWSID

SD4600426

State

South Dakota

City

SPEARFISH

Population served

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

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Dec 2024. Official EPA record →

Monitoring · Lead & Copper Rule began Oct 2024 Resolved

Treatment technique · EPA contaminant 0400 health-based began Oct 2018 Resolved

Treatment technique · EPA contaminant 0400 health-based began Feb 2018 Resolved

Treatment technique · EPA contaminant 0400 health-based began Feb 2015 Resolved

Treatment technique · EPA contaminant 0400 health-based began Feb 2014 Resolved

Other · EPA contaminant 7000 began Jul 2010 Resolved

Monitoring & reporting · EPA contaminant 0999 began Jul 2009 Resolved

Monitoring & reporting · EPA contaminant 0999 began Apr 2009 Resolved

Other · EPA contaminant 7000 began Jul 2007 Resolved

Other · EPA contaminant 7000 began Jul 2006 Resolved

Other · EPA contaminant 7000 began Jul 2001 Resolved

Monitoring & reporting · Lead & Copper Rule began Jan 1998 Resolved

Recent enforcement actions

State action · SIF Dec 2024
State action · SOX Dec 2024
State action · SIE Nov 2024
State action · SOX Apr 2020
State action · SIA Oct 2018
State action · SOX Jun 2018
State action · SIA Apr 2018
State action · SOX Mar 2015

This profile is built from EPA public records for system SD4600426 — 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.