VILLA DIANN MHP

SAN FRANCISCO, CA · ~420 people served

Check your exact address → SAN FRANCISCO overview

100

Excellent

PurityRadar safety score

PWSID

WI6180290

State

California

City

SAN FRANCISCO

Population served

420

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

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 Aug 2025. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Jun 2024 Resolved

Monitoring · Lead & Copper Rule began Jul 2022 Resolved

Monitoring & reporting · Lead & Copper Rule began Jan 2022 Resolved

Other · EPA contaminant 7000 began Oct 2013 Resolved

Max contaminant level (MCL) · Uranium health-based began Apr 2013 Resolved

Max contaminant level (MCL) · Uranium health-based began Jan 2013 Resolved

Monitoring & reporting · EPA contaminant 4030 began Jul 2009 Resolved

Monitoring & reporting · EPA contaminant 4020 began Jul 2009 Resolved

Other · EPA contaminant 7500 began Jun 2008 Resolved

Monitoring & reporting · Total coliform began May 2008 Resolved

Monitoring & reporting · EPA contaminant 0999 began Apr 2008 Resolved

Monitoring & reporting · Total coliform began Oct 2003 Resolved

Recent enforcement actions

State action · SIE Aug 2025
State action · SIA Aug 2025
State action · SOX Aug 2025
State action · SIF Jun 2025
State action · SIF Jun 2023
State action · SOX Aug 2022
State action · SIA Aug 2022
State action · SIE Aug 2022

This profile is built from EPA public records for system WI6180290 — 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.