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Water system · PWSID CA5410016

CWS - VISALIA

SAN JOSE, CA · ~148,496 people served

Check your exact address → SAN JOSE overview
82
Good
PurityRadar safety score

PWSID

CA5410016

State

California

City

SAN JOSE

Population served

148,496

Primary source

Groundwater

Score history

▼ 18 points — the score moved from 100 to 82 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 82

2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.

PFAS & contaminant readings

Latest detections from EPA’s UCMR5 monitoring (through Dec 2024). Levels in parts per trillion (ppt).

PFOA

Perfluorooctanoic acid

4.2 ppt

limit 4 ppt

Above EPA limit · 1.0×

PFOS

Perfluorooctanesulfonic acid

4.2 ppt

limit 4 ppt

Above EPA limit · 1.0×

PFPeA

34 ppt

limit —

No federal limit

PFBA

28 ppt

limit —

No federal limit

PFHxA

15 ppt

limit —

No federal limit

PFBS

3.3 ppt

limit —

No federal limit

Violations & enforcement

2

Violations on record

0

Unaddressed

2

Health-based

4

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Nov 1992. Official EPA record →

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

Recent enforcement actions

  • State action · SFJ Nov 1992
  • State action · SOX Nov 1992
  • State action · SFJ Oct 1992
  • State action · SOX Oct 1992

This profile is built from EPA public records for system CA5410016 — 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.