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Water system · PWSID CA4900599

RANDAL'S RANCHETTE MUTUAL WATER COMPANY

SANTA ROSA, CA · ~200 people served

Check your exact address → SANTA ROSA overview
85
Excellent
PurityRadar safety score

PWSID

CA4900599

State

California

City

SANTA ROSA

Population served

200

Primary source

Groundwater

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 85 Jun 18, 2026 · score 85

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

10

Violations on record

3

Unaddressed

3

Health-based

11

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Mar 2024. Official EPA record →

Reporting · EPA contaminant 5200 began Oct 2024 Unaddressed
Treatment technique · EPA contaminant 5200 health-based began Oct 2024 Unaddressed
Monitoring & reporting · Lead & Copper Rule began Oct 2022 Unaddressed
Monitoring & reporting · Lead & Copper Rule began Jun 2022 Resolved
Monitoring & reporting · Lead & Copper Rule began Oct 2021 Resolved
Monitoring & reporting · Lead & Copper Rule began Jun 2021 Addressed
Max contaminant level (MCL) · Total coliform health-based began Apr 2010 Resolved
Monitoring & reporting · Total coliform began Dec 2006 Resolved
Max contaminant level (MCL) · Total coliform health-based began Nov 2001 Resolved
Monitoring & reporting · Total coliform began Mar 1996 Resolved

Recent enforcement actions

  • State action · SOX Mar 2024
  • State action · SFL Dec 2022
  • State action · SFL Dec 2021
  • State action · SOX May 2010
  • State action · SFL May 2010
  • State action · SFL Feb 2007
  • State action · SOX Jan 2007
  • State action · SOX Dec 2001

This profile is built from EPA public records for system CA4900599 — 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.