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Water system · PWSID CA5010009

KEYES COMMUNITY SERVICES DIST.

KEYES, CA · ~5,672 people served

Check your exact address → KEYES overview
100
Excellent
PurityRadar safety score

PWSID

CA5010009

State

California

City

KEYES

Population served

5,672

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

60

Violations on record

0

Unaddressed

60

Health-based

7

Enforcement actions

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

Max contaminant level (MCL) · Arsenic health-based began Jan 2020 Resolved
Max contaminant level (MCL) · Arsenic health-based began Oct 2019 Resolved
Max contaminant level (MCL) · Arsenic health-based began Jul 2019 Resolved
Max contaminant level (MCL) · Arsenic health-based began Apr 2019 Resolved
Max contaminant level (MCL) · Arsenic health-based began Jan 2019 Resolved
Max contaminant level (MCL) · Arsenic health-based began Sep 2018 Resolved
Max contaminant level (MCL) · Arsenic health-based began Jul 2018 Resolved
Max contaminant level (MCL) · Arsenic health-based began Apr 2018 Resolved
Max contaminant level (MCL) · Arsenic health-based began Jan 2018 Resolved
Max contaminant level (MCL) · Arsenic health-based began Oct 2017 Resolved
Max contaminant level (MCL) · Arsenic health-based began Jul 2017 Resolved
Max contaminant level (MCL) · Arsenic health-based began Apr 2017 Resolved

Recent enforcement actions

  • State action · SOX Mar 2020
  • State action · SFL Jan 2009
  • State action · SOX Jan 1996
  • State action · SOX Oct 1995
  • State action · SOX Aug 1995
  • State action · SOX Apr 1995
  • State action · SOX Jan 1995

This profile is built from EPA public records for system CA5010009 — 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.