MOUNTAIN VALE VILLAGE MHP

SAN FRANCISCO, CA · ~388 people served

Check your exact address → SAN FRANCISCO overview

100

Excellent

PurityRadar safety score

PWSID

NH0513100

State

California

City

SAN FRANCISCO

Population served

388

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 Jul 2022. Official EPA record →

Other · EPA contaminant 7000 began Jul 2022 Resolved

Monitoring & reporting · Lead & Copper Rule began Oct 2021 Resolved

Reporting · Lead & Copper Rule began Oct 2018 Resolved

Reporting · Lead & Copper Rule began Jul 2018 Resolved

Monitoring & reporting · Lead & Copper Rule began Jul 2013 Resolved

Other · EPA contaminant 7000 began Jul 2013 Resolved

Other · EPA contaminant 7000 began Jul 2011 Resolved

Monitoring & reporting · Total coliform began Jul 2010 Resolved

Other · EPA contaminant 7000 began Oct 2009 Resolved

Monitoring & reporting · Total coliform began Oct 2008 Resolved

Monitoring & reporting · Nitrate began Jan 2000 Resolved

Monitoring & reporting · Total coliform began Sep 1991 Resolved

Recent enforcement actions

State action · SOX Jul 2022
State action · SIA Jul 2022
State action · SOX Oct 2021
State action · SIA Oct 2021
State action · SOX Dec 2018
State action · SIF Nov 2018
State action · SIE Nov 2018
State action · SIA Nov 2018

This profile is built from EPA public records for system NH0513100 — 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.