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Water system · PWSID CA1510033

CWS - KERNVILLE

SAN JOSE, CA · ~2,572 people served

Check your exact address → SAN JOSE overview
100
Excellent
PurityRadar safety score

PWSID

CA1510033

State

California

City

SAN JOSE

Population served

2,572

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

14

Violations on record

0

Unaddressed

12

Health-based

5

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement May 2020. Official EPA record →

Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Oct 2019 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jul 2019 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Apr 2019 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jan 2018 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Oct 2017 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jul 2017 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Apr 2017 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jan 2017 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Oct 2016 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jul 2016 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Apr 2016 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jan 2016 Resolved

Recent enforcement actions

  • State action · SOX May 2020
  • State action · SFL Oct 2016
  • EPA/federal action · EOX Dec 2003
  • State action · SIA Jun 2002
  • State action · SOX Jan 2002

This profile is built from EPA public records for system CA1510033 — 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.