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Water system · PWSID SD4602073

PEARL CREEK COLONY

IROQUOIS, SD · ~94 people served

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

PWSID

SD4602073

State

South Dakota

City

IROQUOIS

Population served

94

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

42

Violations on record

0

Unaddressed

10

Health-based

60

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Aug 2022. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Oct 2019 Resolved
Monitoring & reporting · Total coliform began Nov 2015 Resolved
Monitoring & reporting · Total coliform began Sep 2013 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 2007 Resolved
Monitoring & reporting · Total coliform began Sep 2006 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 2006 Resolved
Other · EPA contaminant 7000 began Jul 2004 Resolved
Monitoring & reporting · Total coliform began Nov 2001 Resolved
Monitoring & reporting · Total coliform began Oct 2001 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 2001 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 2001 Resolved
Other · EPA contaminant 7000 began Jul 2001 Resolved

Recent enforcement actions

  • State action · SOX Aug 2022
  • State action · SIA Aug 2019
  • State action · SOX Jan 2016
  • State action · SIF Dec 2015
  • State action · SIE Dec 2015
  • State action · SOX Nov 2013
  • State action · SIF Oct 2013
  • State action · SIE Oct 2013

This profile is built from EPA public records for system SD4602073 — 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.