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Water system · PWSID CA2410018

SANTA NELLA COUNTY WATER DISTRICT

100
Excellent
PurityRadar safety score

PWSID

CA2410018

State

California

City

SANTA NELLA

Population served

2,211

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

19

Violations on record

0

Unaddressed

15

Health-based

16

Enforcement actions

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

Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jul 2014 Resolved
Treatment technique · Bromate health-based began Oct 2011 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Apr 2010 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2010 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Apr 2009 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2009 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Oct 2008 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jul 2008 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Apr 2008 Resolved
Monitoring & reporting · Total coliform began Jan 2008 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2008 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Oct 2004 Resolved

Recent enforcement actions

  • State action · SOX Mar 2018
  • State action · SFL Dec 2014
  • State action · SOX Mar 2012
  • State action · SFL Feb 2012
  • State action · SOX Jul 2011
  • State action · SIA Jan 2009
  • State action · SOX Jan 2009
  • State action · SFL Apr 2008

This profile is built from EPA public records for system CA2410018 — 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.