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Water system · PWSID ND4800828

ROCK LAKE CITY OF

ROCK LAKE, ND · ~94 people served

Check your exact address → ROCK LAKE overview
100
Excellent
PurityRadar safety score

PWSID

ND4800828

State

North Dakota

City

ROCK LAKE

Population served

94

Primary source

GWP

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

22

Violations on record

0

Unaddressed

0

Health-based

44

Enforcement actions

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

Monitoring & reporting · EPA contaminant 0999 began Jul 2024 Resolved
Monitoring & reporting · EPA contaminant 0999 began Apr 2015 Resolved
Monitoring & reporting · Lead & Copper Rule began Nov 2012 Resolved
Other · EPA contaminant 7000 began Oct 2011 Resolved
Monitoring & reporting · Total coliform began Aug 2011 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jul 2011 Resolved
Other · EPA contaminant 7500 began Nov 2009 Resolved
Other · EPA contaminant 7000 began Oct 2009 Resolved
Other · EPA contaminant 7500 began Sep 2009 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jul 2009 Resolved
Other · EPA contaminant 7500 began Feb 2006 Resolved
Other · EPA contaminant 7500 began Dec 2005 Resolved

Recent enforcement actions

  • State action · SOX May 2025
  • State action · SIF Nov 2024
  • State action · SIE Oct 2024
  • State action · SIA Oct 2024
  • State action · SOX Oct 2015
  • State action · SIF Sep 2015
  • State action · SIA Jul 2015
  • State action · SIE Jul 2015

This profile is built from EPA public records for system ND4800828 — 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.