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Water system · PWSID CA5500363

TUD-WARDS FERRY RANCHES

SONORA, CA · ~62 people served

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

PWSID

CA5500363

State

California

City

SONORA

Population served

62

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

Latest detections from EPA’s UCMR5 monitoring (through Dec 2023). Levels in parts per trillion (ppt).

PFPeA

4.8 ppt

limit —

No federal limit

PFHxA

3.8 ppt

limit —

No federal limit

PFBS

3 ppt

limit —

No federal limit

Violations & enforcement

10

Violations on record

0

Unaddressed

8

Health-based

24

Enforcement actions

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

Monitoring · Lead & Copper Rule began Apr 2025 Resolved
Max contaminant level (MCL) · Total coliform health-based began Dec 2005 Resolved
Max contaminant level (MCL) · Total coliform health-based began Mar 2005 Resolved
Max contaminant level (MCL) · Total coliform health-based began Feb 2005 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jun 2004 Resolved
Max contaminant level (MCL) · Total coliform health-based began Aug 2003 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 2002 Resolved
Monitoring & reporting · Nitrate began Jan 2001 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 1999 Resolved
Max contaminant level (MCL) · Total coliform health-based began Apr 1998 Resolved

Recent enforcement actions

  • State action · SOX Sep 2025
  • State action · SFJ Aug 2025
  • State action · SOX Jan 2019
  • State action · SOX Jan 2006
  • State action · SFJ Dec 2005
  • State action · SFH Nov 2005
  • State action · SOX Apr 2005
  • State action · SOX Mar 2005

This profile is built from EPA public records for system CA5500363 — 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.