WINDFLOWER POINT MUTUAL WATER COMPANY

SOUTH SAN FRANCISCO, CA · ~25 people served

Check your exact address → SOUTH SAN FRANCISCO overview

100

Excellent

PurityRadar safety score

PWSID

CA1700657

State

California

City

SOUTH SAN FRANCISCO

Population served

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 Jan 2021. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Oct 2020 Addressed

Monitoring & reporting · Total coliform began Sep 2013 Resolved

Monitoring & reporting · Total coliform began Jul 2006 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2006 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2006 Resolved

Monitoring & reporting · Total coliform began Aug 1998 Resolved

Monitoring & reporting · Lead & Copper Rule began Jul 1993 Resolved

Recent enforcement actions

State action · SFL Jan 2021
State action · SOX Jan 2018
State action · SFL Dec 2013
State action · SOX May 2007
State action · SFL Mar 2007
State action · SOX Aug 2006
State action · SFL Aug 2006
EPA/federal action · EOX Dec 2003

This profile is built from EPA public records for system CA1700657 — 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.