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Water system · PWSID CA3900682

LOCKEFORD MOBILE HOME PARK WTR SYS

CONCORD, CA · ~123 people served

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

PWSID

CA3900682

State

California

City

CONCORD

Population served

123

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

11

Violations on record

0

Unaddressed

8

Health-based

20

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jun 2012. Official EPA record →

Max contaminant level (MCL) · Total coliform health-based began May 2012 Resolved
Max contaminant level (MCL) · Total coliform health-based began Mar 2010 Resolved
Other · EPA contaminant 7000 began Jul 2006 Resolved
Max contaminant level (MCL) · Total coliform health-based began Feb 2006 Resolved
Max contaminant level (MCL) · Total coliform health-based began Dec 2005 Resolved
Max contaminant level (MCL) · Total coliform health-based began Apr 2005 Resolved
Max contaminant level (MCL) · Total coliform health-based began May 2004 Resolved
Max contaminant level (MCL) · Total coliform health-based began Apr 2004 Resolved
Other · EPA contaminant 7000 began Jul 2002 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jun 1997 Resolved
Monitoring & reporting · Lead & Copper Rule began Jul 1993 Resolved

Recent enforcement actions

  • State action · SOX Jun 2012
  • State action · SIE May 2012
  • State action · SOX Apr 2010
  • State action · SIE Apr 2010
  • State action · SOX Jul 2007
  • State action · SOX Mar 2006
  • State action · SIE Feb 2006
  • State action · SOX Jan 2006

This profile is built from EPA public records for system CA3900682 — 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.