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Water system · PWSID CA5210003

LOS MOLINOS COMM. SERVICES DIST.

LOS MOLINOS, CA · ~1,450 people served

Check your exact address → LOS MOLINOS overview
100
Excellent
PurityRadar safety score

PWSID

CA5210003

State

California

City

LOS MOLINOS

Population served

1,450

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

53

Violations on record

1

Unaddressed

50

Health-based

19

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jul 2022. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Jun 2011 Unaddressed
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 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 Apr 2017 Resolved
Max contaminant level (MCL) · Arsenic health-based began Jan 2017 Resolved
Max contaminant level (MCL) · Arsenic health-based began Oct 2016 Resolved

Recent enforcement actions

  • State action · SOX Jul 2022
  • State action · SFL Jun 2018
  • State action · SOX Mar 2018
  • State action · SFL Dec 2016
  • State action · SFL Sep 2015
  • State action · SFJ Jun 2011
  • State action · SFJ Oct 2010
  • State action · SFL Oct 2010

Area water-quality monitoring

Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.

ContaminantMedian · max · samples

Nitrate

1 station · latest Dec 2022

1.12 · max 1.12 mg/l as N · 2

Arsenic

1 station · latest Dec 2022

3.9 · max 3.9 ug/l · 1

Fluoride

1 station · latest Dec 2022

0.12 · max 0.12 mg/l · 1

Manganese

1 station · latest Dec 2022

2.02 · max 2.02 ug/l · 1

Uranium

1 station · latest Dec 2022

0.264 · max 0.264 ug/l · 1

Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.

This profile is built from EPA public records for system CA5210003 — 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.