CWS - TULCO WATER COMPANY

SAN JOSE, CA · ~716 people served

Check your exact address → SAN JOSE overview

100

Excellent

PurityRadar safety score

PWSID

CA5410041

State

California

City

SAN JOSE

Population served

716

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 Mar 2000. Official EPA record →

Monitoring & reporting · Total coliform began Jun 1998 Resolved

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

Monitoring & reporting · Total coliform began Jul 1995 Resolved

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

Max contaminant level (MCL) · EPA contaminant 2931 health-based began Jan 1990 Resolved

Recent enforcement actions

EPA/federal action · EOX Mar 2000
State action · SOX Jul 1998
State action · SIA Jul 1998
State action · SOX Sep 1995
State action · SFJ Sep 1995
State action · SOX Aug 1995
State action · SFJ Aug 1995
State action · SOX Jan 1995

This profile is built from EPA public records for system CA5410041 — 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.