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Water system · PWSID SD4600160

REYNOLDS COURT

SPEARFISH, SD · ~28 people served

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

PWSID

SD4600160

State

South Dakota

City

SPEARFISH

Population served

28

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

98

Violations on record

0

Unaddressed

9

Health-based

272

Enforcement actions

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

Reporting · EPA contaminant 5200 began Oct 2024 Resolved
Treatment technique · EPA contaminant 5200 health-based began Oct 2024 Resolved
Treatment technique · EPA contaminant 0700 health-based began Nov 2020 Resolved
Treatment technique · EPA contaminant 0400 health-based began Feb 2019 Resolved
Treatment technique · EPA contaminant 0400 health-based began May 2018 Resolved
Treatment technique · EPA contaminant 0400 health-based began May 2017 Resolved
Treatment technique · EPA contaminant 0400 health-based began Feb 2016 Resolved
Monitoring & reporting · Nitrate began Jan 2014 Resolved
Treatment technique · EPA contaminant 0400 health-based began Feb 2013 Resolved
Treatment technique · EPA contaminant 0400 health-based began May 2010 Resolved
Other · EPA contaminant 7500 began Jul 2007 Resolved
Other · EPA contaminant 7500 began Jul 2007 Resolved

Recent enforcement actions

  • State action · SOX Feb 2025
  • State action · SOX Feb 2025
  • State action · SO6 Oct 2024
  • State action · SO6 Oct 2024
  • State action · SOX Jun 2021
  • State action · SO6 Apr 2021
  • State action · SOX Jun 2019
  • State action · SIA Apr 2019

This profile is built from EPA public records for system SD4600160 — 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.