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Water system · PWSID CA2010002

CITY OF MADERA

MADERA, CA · ~66,560 people served

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

PWSID

CA2010002

State

California

City

MADERA

Population served

66,560

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

9

Violations on record

0

Unaddressed

7

Health-based

23

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Nov 2018. Official EPA record →

Monitoring & reporting · EPA contaminant 3014 began Jul 2017 Resolved
Monitoring & reporting · Total coliform began May 2005 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 1995 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jun 1995 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jun 1994 Resolved
Max contaminant level (MCL) · Total coliform health-based began Mar 1994 Resolved
Max contaminant level (MCL) · Total coliform health-based began Nov 1993 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 1992 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 1992 Resolved

Recent enforcement actions

  • State action · SIA Nov 2018
  • State action · SOX Oct 2018
  • State action · SFJ Aug 2017
  • State action · SIA Aug 2017
  • State action · SIA Mar 2015
  • State action · SIA Aug 2005
  • State action · SOX Jun 2005
  • EPA/federal action · EOX Mar 2000

Area water-quality monitoring

Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.

ContaminantMedian · max · samples

Nitrate

1 station · latest May 2023

1 · max 1 mg/l as N · 2

Arsenic

1 station · latest May 2023

1.2 · max 1.2 ug/l · 1

Copper

1 station · latest May 2023

0.63 · max 0.63 ug/l · 1

Fluoride

1 station · latest May 2023

0.11 · max 0.11 mg/l · 1

Lead

1 station · latest May 2023

0.106 · max 0.106 ug/l · 1

Uranium

1 station · latest May 2023

0.244 · max 0.244 ug/l · 1

Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.

This profile is built from EPA public records for system CA2010002 — 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.