ALDERCROFT HEIGHTS COUNTY WATER DISTRICT

LOS GATOS, CA · ~338 people served

Check your exact address → LOS GATOS overview

100

Excellent

PurityRadar safety score

PWSID

CA4300516

State

California

City

LOS GATOS

Population served

338

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 Feb 2018. Official EPA record →

Max contaminant level (MCL) · Total coliform health-based began Feb 1999 Resolved

Monitoring & reporting · Lead & Copper Rule began Jan 1999 Resolved

Max contaminant level (MCL) · Total coliform health-based began Oct 1998 Resolved

Monitoring & reporting · Total coliform began Sep 1998 Resolved

Max contaminant level (MCL) · Total coliform health-based began Apr 1995 Resolved

Treatment technique · EPA contaminant 0200 health-based began Aug 1993 Resolved

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

Treatment technique · EPA contaminant 0200 health-based began Jan 1992 Resolved

Recent enforcement actions

State action · SOX Feb 2018
State action · SOX Apr 2000
State action · SIF Jan 2000
State action · SIA Jan 2000
State action · SOX Jan 2000
State action · SIE Jan 2000
State action · SOX Mar 1999
State action · SIA Mar 1999

This profile is built from EPA public records for system CA4300516 — 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.