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Water system · PWSID SD4602051

LONG LAKE COLONY

WESTPORT, SD · ~100 people served

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

PWSID

SD4602051

State

South Dakota

City

WESTPORT

Population served

100

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

58

Violations on record

0

Unaddressed

6

Health-based

48

Enforcement actions

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

Monitoring & reporting · Total coliform began Sep 2012 Resolved
Other began Nov 2010 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jan 2004 Resolved
Monitoring & reporting · Total coliform began Dec 2003 Resolved
Max contaminant level (MCL) · Total coliform health-based began Apr 2003 Resolved
Monitoring & reporting · Total coliform began Oct 2000 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 2000 Resolved
Other · EPA contaminant 7000 began Jul 2000 Resolved
Monitoring & reporting · Total coliform began Jul 1997 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jun 1997 Resolved
Monitoring & reporting · Total coliform began Jun 1997 Resolved
Max contaminant level (MCL) · Total coliform health-based began May 1997 Resolved

Recent enforcement actions

  • State action · SOX Nov 2012
  • State action · SIF Oct 2012
  • State action · SIE Sep 2012
  • State action · SO6 Jul 2011
  • State action · SOX Jun 2011
  • State action · SOX Aug 2004
  • State action · SOX Jul 2004
  • State action · SIF Jan 2004

This profile is built from EPA public records for system SD4602051 — 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.