MADERA CO SA1-INDIAN LAKES

MADERA, CA · ~1,562 people served

Check your exact address → MADERA overview

100

Excellent

PurityRadar safety score

PWSID

CA2010011

State

California

City

MADERA

Population served

1,562

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 2016. Official EPA record →

Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2016 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2015 Resolved

Monitoring & reporting · Total coliform began Apr 2008 Resolved

Monitoring & reporting · Nitrate began Jan 2001 Resolved

Monitoring & reporting · EPA contaminant 4030 began Jan 2001 Resolved

Max contaminant level (MCL) · Total coliform health-based began Jul 1999 Resolved

Max contaminant level (MCL) · Total coliform health-based began May 1998 Resolved

Max contaminant level (MCL) · Total coliform health-based began Jan 1997 Resolved

Monitoring & reporting · Lead & Copper Rule began Jan 1996 Resolved

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

Max contaminant level (MCL) · Total coliform health-based began May 1992 Resolved

Recent enforcement actions

State action · SOX Sep 2016
State action · SIA Aug 2016
State action · SOX Aug 2009
State action · SOX May 2008
State action · SIA May 2008
State action · SIA Apr 2008
State action · SOX Sep 2004
State action · SIA May 2002

This profile is built from EPA public records for system CA2010011 — 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.