BY WAY MOBILE HOME PARK

SAN FRANCISCO, CA · ~150 people served

Check your exact address → SAN FRANCISCO overview

100

Excellent

PurityRadar safety score

PWSID

OH2500212

State

California

City

SAN FRANCISCO

Population served

150

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 May 2012. Official EPA record →

Monitoring & reporting · Total coliform began Oct 2010 Resolved

Monitoring & reporting · Total coliform began Oct 2009 Resolved

Monitoring & reporting · Total coliform began May 2009 Resolved

Monitoring & reporting · Lead & Copper Rule began Oct 2007 Resolved

Monitoring & reporting · Lead & Copper Rule began Oct 2006 Resolved

Other · EPA contaminant 7000 began Jul 2005 Resolved

Other · EPA contaminant 7000 began Jul 2002 Resolved

Other · EPA contaminant 7000 began Jul 2001 Resolved

Monitoring & reporting · Lead & Copper Rule began Jan 1997 Resolved

Monitoring & reporting · Lead & Copper Rule began Jan 1996 Resolved

Max contaminant level (MCL) · Total coliform health-based began Sep 1993 Resolved

Recent enforcement actions

State action · SOX May 2012
State action · SOX May 2011
State action · SIA Nov 2010
State action · SIE Nov 2010
State action · SOX Jun 2010
State action · SIF Dec 2009
State action · SIA Dec 2009
State action · SIE Dec 2009

This profile is built from EPA public records for system OH2500212 — 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.