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Water system · PWSID CA3200078

FRCCSD OLD MILL RANCH

TWAIN, CA · ~32 people served

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

PWSID

CA3200078

State

California

City

TWAIN

Population served

32

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

4

Violations on record

2

Unaddressed

1

Health-based

4

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Dec 2010. Official EPA record →

Treatment technique · EPA contaminant 5200 health-based began Oct 2024 Unaddressed
Reporting · EPA contaminant 5200 began Oct 2024 Unaddressed
Monitoring & reporting · Total coliform began Nov 2010 Resolved
Monitoring & reporting · Lead & Copper Rule began Jul 1993 Resolved

Recent enforcement actions

  • State action · SOX Dec 2010
  • State action · SFL Dec 2010
  • EPA/federal action · EOX Dec 2003
  • State action · SIA Sep 1985

This profile is built from EPA public records for system CA3200078 — 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.