SUMMIT MUTUAL WATER COMPANY

LOS GATOS, CA · ~152 people served

Check your exact address → LOS GATOS overview

100

Excellent

PurityRadar safety score

PWSID

CA4400559

State

California

City

LOS GATOS

Population served

152

Primary source

Surface water

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 Oct 2023. Official EPA record →

Max contaminant level (MCL) · EPA contaminant 1011 health-based began Oct 2022 Resolved

Monitoring · Lead & Copper Rule began Aug 2022 Resolved

Monitoring · Lead & Copper Rule began Jan 2022 Resolved

Monitoring · Lead & Copper Rule began Dec 2021 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2021 Resolved

Monitoring · Lead & Copper Rule began Jan 2021 Resolved

Monitoring · Lead & Copper Rule began Sep 2017 Resolved

Monitoring · Lead & Copper Rule began Aug 2017 Resolved

Monitoring · Lead & Copper Rule began Jul 2017 Resolved

Monitoring · Lead & Copper Rule began Jun 2017 Resolved

Recent enforcement actions

State action · SOX Oct 2023
State action · SFL Feb 2023
State action · SOX Oct 2022
State action · SFL Sep 2022
State action · SOX Jun 2021
State action · SFL May 2021
State action · SOX Oct 2018
State action · SFL Oct 2017

This profile is built from EPA public records for system CA4400559 — 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.