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Water system · PWSID CA3610030

MARIANA RANCHOS CWD

APPLE VALLEY, CA · ~1,502 people served

Check your exact address → APPLE VALLEY overview
100
Excellent
PurityRadar safety score

PWSID

CA3610030

State

California

City

APPLE VALLEY

Population served

1,502

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

6

Health-based

15

Enforcement actions

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

Max contaminant level (MCL) · Total coliform health-based began Jul 2015 Resolved
Monitoring & reporting · Lead & Copper Rule began Jun 2012 Resolved
Max contaminant level (MCL) · Total coliform health-based began Apr 2010 Resolved
Monitoring & reporting · Total coliform began Oct 2008 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 2008 Resolved
Other · Total coliform began Oct 2008 Resolved
Monitoring & reporting · Total coliform began Jul 2008 Resolved
Max contaminant level (MCL) · Total coliform health-based began Mar 2005 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 2003 Resolved
Monitoring & reporting · Total coliform began May 1996 Resolved
Max contaminant level (MCL) · Total coliform health-based began Aug 1994 Resolved

Recent enforcement actions

  • State action · SOX Apr 2018
  • State action · SFL Sep 2015
  • State action · SOX Sep 2015
  • State action · SOX Sep 2013
  • State action · SFJ Dec 2012
  • State action · SFL Jun 2010
  • State action · SOX Feb 2009
  • State action · SFL Jan 2009

This profile is built from EPA public records for system CA3610030 — 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.