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Water system · PWSID CA5410017

LONDON COMMUNITY SERV DIST

DINUBA, CA · ~2,134 people served

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

PWSID

CA5410017

State

California

City

DINUBA

Population served

2,134

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

15

Violations on record

0

Unaddressed

9

Health-based

21

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Mar 2018. Official EPA record →

Max contaminant level (MCL) · Total coliform health-based began Dec 2011 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 2010 Resolved
Max contaminant level (MCL) · Total coliform health-based began Aug 2009 Resolved
Monitoring & reporting · Total coliform began Oct 2006 Resolved
Monitoring & reporting · Lead & Copper Rule began Oct 2005 Resolved
Monitoring & reporting · Total coliform began Dec 2004 Resolved
Monitoring & reporting · Total coliform began Nov 2004 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 2002 Resolved
Max contaminant level (MCL) · Total coliform health-based began Dec 1999 Resolved
Max contaminant level (MCL) · Total coliform health-based began May 1996 Resolved
Max contaminant level (MCL) · Total coliform health-based began Nov 1995 Resolved
Max contaminant level (MCL) · Total coliform health-based began Feb 1995 Resolved

Recent enforcement actions

  • State action · SOX Mar 2018
  • State action · SFL Mar 2012
  • State action · SFL Jan 2011
  • State action · SFL Oct 2009
  • State action · SIA Feb 2007
  • State action · SIA Apr 2006
  • State action · SIA Feb 2005
  • State action · SIA May 2002

This profile is built from EPA public records for system CA5410017 — 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.