MOUNTAIN SPRINGS MUTUAL WATER COMPANY

LOS GATOS, CA · ~40 people served

Check your exact address → LOS GATOS overview

100

Excellent

PurityRadar safety score

PWSID

CA4300740

State

California

City

LOS GATOS

Population served

Primary source

SWP

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 Feb 2018. Official EPA record →

Monitoring · Lead & Copper Rule began Dec 2017 Resolved

Monitoring & reporting · EPA contaminant 0700 began Apr 2015 Resolved

Monitoring & reporting · Total coliform began Apr 2015 Resolved

Max contaminant level (MCL) · Total coliform health-based began Jan 2003 Resolved

Monitoring & reporting · Total coliform began Sep 2002 Resolved

Monitoring & reporting · Total coliform began Jan 2002 Resolved

Monitoring & reporting · Total coliform began Feb 2000 Resolved

Monitoring & reporting · Total coliform began Oct 1994 Resolved

Recent enforcement actions

State action · SOX Feb 2018
State action · SFL Jan 2018
State action · SOX Jan 2018
State action · SOX May 2015
State action · SFL May 2015
State action · SFL Mar 2003
State action · SOX Feb 2003
State action · SOX Oct 2002

This profile is built from EPA public records for system CA4300740 — 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.