MADERA CO MD10A-MADERA RANCHOS

MADERA, CA · ~3,172 people served

Check your exact address → MADERA overview

100

Excellent

PurityRadar safety score

PWSID

CA2010008

State

California

City

MADERA

Population served

3,172

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

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Sep 2014. Official EPA record →

Max contaminant level (MCL) · Total coliform health-based began Apr 2014 Resolved

Monitoring & reporting · Total coliform began Nov 2010 Resolved

Max contaminant level (MCL) · Total coliform health-based began Dec 2004 Resolved

Max contaminant level (MCL) · Nitrate health-based began Feb 2001 Resolved

Max contaminant level (MCL) · Total coliform health-based began Jul 1994 Resolved

Max contaminant level (MCL) · Total coliform health-based began Nov 1993 Resolved

Monitoring & reporting · Lead & Copper Rule began Jul 1993 Resolved

Recent enforcement actions

State action · SOX Sep 2014
State action · SFL Jul 2014
State action · SOX Jul 2011
State action · SIA Dec 2010
EPA/federal action · EOX May 2009
State action · SOX Jan 2005
State action · SFL Apr 2001
State action · SOX Feb 2001

This profile is built from EPA public records for system CA2010008 — 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.