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Water system · PWSID CA2800593

R RANCH AT THE LAKE

NAPA, CA · ~28 people served

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

PWSID

CA2800593

State

California

City

NAPA

Population served

28

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

15

Violations on record

2

Unaddressed

1

Health-based

25

Enforcement actions

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

Treatment technique · EPA contaminant 5200 health-based began Oct 2024 Unaddressed
Reporting · EPA contaminant 5200 began Oct 2024 Unaddressed
Monitoring & reporting · Lead & Copper Rule began Oct 2024 Resolved
Monitoring · Lead & Copper Rule began Jul 2022 Resolved
Monitoring & reporting · Lead & Copper Rule began Oct 2021 Resolved
Other · EPA contaminant 7000 began Jul 2017 Resolved
Monitoring & reporting · Total coliform began Nov 2012 Resolved
Other · EPA contaminant 7000 began Jul 2012 Resolved
Monitoring & reporting · Total coliform began May 2012 Resolved
Monitoring & reporting · Total coliform began Apr 2012 Resolved
Monitoring & reporting · Total coliform began Jul 2011 Resolved
Monitoring & reporting · Total coliform began Jul 2011 Resolved

Recent enforcement actions

  • State action · SOX Mar 2025
  • State action · SFL Nov 2024
  • State action · SOX Jan 2023
  • State action · SFJ Oct 2022
  • State action · SOX Mar 2022
  • State action · SFL Nov 2021
  • State action · SOX Mar 2018
  • State action · SOX Dec 2017

This profile is built from EPA public records for system CA2800593 — 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.