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Water system · PWSID IA6000744

LYON-SIOUX RWS-BOYDEN

ROCK RAPIDS, IA · ~605 people served

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

PWSID

IA6000744

State

Iowa

City

ROCK RAPIDS

Population served

605

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

9

Violations on record

0

Unaddressed

6

Health-based

52

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Sep 2001. Official EPA record →

Max contaminant level (MCL) · Nitrate health-based began Mar 2001 Resolved
Max contaminant level (MCL) · Nitrate health-based began May 2000 Resolved
Max contaminant level (MCL) · Nitrate health-based began Feb 1996 Resolved
Max contaminant level (MCL) · Nitrate health-based began Nov 1995 Resolved
Monitoring & reporting · Nitrate began Mar 1994 Resolved
Monitoring & reporting · Nitrate began Feb 1994 Resolved
Max contaminant level (MCL) · Nitrate health-based began Jan 1993 Resolved
Other · Nitrate began Jan 1987 Resolved
Max contaminant level (MCL) · Nitrate health-based began Mar 1986 Resolved

Recent enforcement actions

  • State action · SOX Sep 2001
  • State action · SFJ Mar 2001
  • State action · SIE Mar 2001
  • State action · SOX Nov 2000
  • State action · SIF May 2000
  • State action · SFJ May 2000
  • State action · SIE May 2000
  • State action · SOX Aug 1996

This profile is built from EPA public records for system IA6000744 — 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.