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Water system · PWSID CA4900846

ROLLING OAKS ROAD ASSOCIATION

ROHNERT PARK, CA · ~25 people served

Check your exact address → ROHNERT PARK overview
100
Excellent
PurityRadar safety score

PWSID

CA4900846

State

California

City

ROHNERT PARK

Population served

25

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

14

Violations on record

0

Unaddressed

8

Health-based

28

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Apr 2011. Official EPA record →

Max contaminant level (MCL) · Total coliform health-based began Feb 2011 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jan 2010 Resolved
Max contaminant level (MCL) · Total coliform health-based began Dec 2009 Resolved
Max contaminant level (MCL) · Total coliform health-based began Nov 2009 Resolved
Monitoring & reporting · Total coliform began May 1999 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jun 1998 Resolved
Max contaminant level (MCL) · Total coliform health-based began May 1998 Resolved
Monitoring & reporting · Total coliform began Apr 1998 Resolved
Max contaminant level (MCL) · Total coliform health-based began Mar 1997 Resolved
Max contaminant level (MCL) · Total coliform health-based began Dec 1995 Resolved
Monitoring & reporting · Total coliform began Apr 1995 Resolved
Monitoring & reporting · Total coliform began Nov 1994 Resolved

Recent enforcement actions

  • State action · SFL Apr 2011
  • State action · SOX Mar 2011
  • State action · SOX Feb 2010
  • State action · SFL Feb 2010
  • State action · SOX Jan 2010
  • State action · SFL Jan 2010
  • State action · SFL Jan 2010
  • State action · SOX Dec 2009

This profile is built from EPA public records for system CA4900846 — 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.