CWS-SPLIT MOUNTAIN WATER SYSTEM

SAN JOSE, CA · ~226 people served

Check your exact address → SAN JOSE overview

100

Excellent

PurityRadar safety score

PWSID

CA1500407

State

California

City

SAN JOSE

Population served

226

Primary source

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 2003. Official EPA record →

Max contaminant level (MCL) · Total coliform health-based began Dec 2002 Resolved

Monitoring & reporting · Total coliform began Apr 1995 Resolved

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

Monitoring & reporting · Total coliform began Nov 1994 Resolved

Max contaminant level (MCL) · Total coliform health-based began Jun 1994 Resolved

Max contaminant level (MCL) · Total coliform health-based began Feb 1994 Resolved

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

Recent enforcement actions

State action · SFJ Feb 2003
State action · SOX Jan 2003
EPA/federal action · EOX Mar 2000
State action · SOX May 1995
State action · SIA May 1995
State action · SOX Feb 1995
State action · SFL Feb 1995
State action · SIA Dec 1994

This profile is built from EPA public records for system CA1500407 — 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.