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Water system · PWSID CA2210901

MPWD-COULTERVILLE CSA 1

MARIPOSA, CA · ~193 people served

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

PWSID

CA2210901

State

California

City

MARIPOSA

Population served

193

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

11

Violations on record

0

Unaddressed

4

Health-based

23

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement May 2022. Official EPA record →

Monitoring · Lead & Copper Rule began Feb 2022 Resolved
Monitoring · Lead & Copper Rule began Feb 2019 Resolved
Monitoring & reporting · Total coliform began Sep 2015 Resolved
Monitoring & reporting · Total coliform began Apr 2014 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jul 2011 Resolved
Monitoring & reporting · Total coliform began Dec 2010 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jan 2008 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jan 1999 Resolved
Max contaminant level (MCL) · Total coliform health-based began Nov 1996 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 1996 Resolved
Monitoring & reporting · Lead & Copper Rule began Jul 1993 Resolved

Recent enforcement actions

  • State action · SOX May 2022
  • State action · SFL Apr 2022
  • State action · SOX Apr 2019
  • State action · SFL Apr 2019
  • State action · SOX Sep 2016
  • State action · SIA Feb 2016
  • State action · SOX Sep 2015
  • State action · SOX Sep 2015

This profile is built from EPA public records for system CA2210901 — 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.