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Water system · PWSID CA4900577

RIO LINDO ADVENTIST ACADEMY

HEALDSBURG, CA · ~178 people served

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

PWSID

CA4900577

State

California

City

HEALDSBURG

Population served

178

Primary source

GU

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

1

Health-based

14

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Sep 2023. Official EPA record →

Monitoring · Lead & Copper Rule began May 2023 Resolved
Monitoring · Lead & Copper Rule began Apr 2023 Resolved
Monitoring & reporting · Nitrate began Jan 2009 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2006 Resolved
Monitoring & reporting · Nitrate began Jan 2006 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2006 Resolved
Max contaminant level (MCL) · Total coliform health-based began Dec 2001 Resolved
Monitoring & reporting · Total coliform began Sep 1994 Resolved
Monitoring & reporting · Lead & Copper Rule began Jul 1993 Resolved

Recent enforcement actions

  • State action · SOX Sep 2023
  • State action · SFL Aug 2023
  • State action · SFL Mar 2022
  • State action · SOX Mar 2018
  • State action · SOX Nov 2010
  • State action · SFL Nov 2010
  • State action · SFL Jun 2007
  • State action · SFL Jan 2007

This profile is built from EPA public records for system CA4900577 — 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.