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Water system · PWSID CA2210906

MARIPOSA PINES MUTUAL

MARIPOSA, CA · ~284 people served

Check your exact address → MARIPOSA overview
85
Excellent
PurityRadar safety score

PWSID

CA2210906

State

California

City

MARIPOSA

Population served

284

Primary source

Groundwater

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 85 Jun 18, 2026 · score 85

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

12

Violations on record

2

Unaddressed

4

Health-based

20

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jun 2025. Official EPA record →

Reporting · EPA contaminant 5200 began Oct 2024 Unaddressed
Treatment technique · EPA contaminant 5200 health-based began Oct 2024 Unaddressed
Other · EPA contaminant 7000 began Jul 2024 Resolved
Monitoring & reporting · Lead & Copper Rule began Oct 2020 Resolved
Monitoring & reporting · Nitrate began Jan 2017 Resolved
Monitoring · Lead & Copper Rule began Apr 2016 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 2015 Resolved
Monitoring & reporting · Nitrate began Jan 2013 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jan 2013 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jun 2012 Resolved
Monitoring & reporting · Nitrate began Jan 2002 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 1996 Resolved

Recent enforcement actions

  • State action · SOX Jun 2025
  • State action · SFO Feb 2025
  • State action · SOX Nov 2021
  • State action · SFL Feb 2021
  • State action · SOX Jun 2018
  • State action · SFL Mar 2018
  • State action · SOX Aug 2017
  • State action · SIA Aug 2016

This profile is built from EPA public records for system CA2210906 — 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.