CALIFORNIA WATER SERVICE - BEAR GULCH

SAN JOSE, CA · ~61,431 people served

Check your exact address → SAN JOSE overview

100

Excellent

PurityRadar safety score

PWSID

CA4110006

State

California

City

SAN JOSE

Population served

61,431

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 Jan 2019. Official EPA record →

Treatment technique · EPA contaminant 0200 health-based began Mar 2015 Resolved

Other began Apr 2006 Resolved

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

Max contaminant level (MCL) · Total coliform health-based began Oct 1992 Resolved

Recent enforcement actions

State action · SOX Jan 2019
State action · SOX Dec 2015
State action · SFL Apr 2015
State action · SIA Sep 2006
State action · SOX Sep 2006
EPA/federal action · EOX Mar 2000
EPA/federal action · EOX Dec 1993
State action · SFL Jun 1993

Area water-quality monitoring

Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.

ContaminantMedian · max · samples

Nitrate

4 stations · latest Feb 2022

0.105 · max 0.18 mg/L · 6

Copper

2 stations · latest Jun 2021

0.695 · max 0.72 ug/L · 2

Arsenic

1 station · latest Apr 2022

3.6 · max 3.6 ug/l · 1

Fluoride

1 station · latest Apr 2022

0.19 · max 0.19 mg/l · 1

Manganese

1 station · latest Apr 2022

239 · max 239 ug/l · 1

Uranium

1 station · latest Apr 2022

0.317 · max 0.317 ug/l · 1

Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.

This profile is built from EPA public records for system CA4110006 — 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.