PONDEROSA MOBILE HOME PARK

SONORA, CA · ~52 people served

Check your exact address → SONORA overview

Excellent

PurityRadar safety score

PWSID

CA5500092

State

California

City

SONORA

Population served

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

Violations on record

Unaddressed

Health-based

Enforcement actions

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

Treatment technique · EPA contaminant 5200 health-based began Oct 2024 Unaddressed

Reporting · EPA contaminant 5200 began Oct 2024 Unaddressed

Monitoring · Lead & Copper Rule began Apr 2025 Resolved

Max contaminant level (MCL) · Lead & Copper Rule health-based began Jul 2016 Resolved

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

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

Recent enforcement actions

State action · SOX Sep 2025
State action · SFJ Aug 2025
State action · SOX Oct 2016
State action · SFL Sep 2016
EPA/federal action · EOX Sep 2005
State action · SOX Mar 2000
State action · SIC Feb 1998
State action · SIF Feb 1998

This profile is built from EPA public records for system CA5500092 — 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.