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Water system · PWSID CA4410016

FOREST LAKES MWC

FELTON, CA · ~1,067 people served

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

PWSID

CA4410016

State

California

City

FELTON

Population served

1,067

Primary source

GU

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

11

Health-based

21

Enforcement actions

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

Treatment technique · EPA contaminant 0200 health-based began Jul 2015 Resolved
Monitoring & reporting · Total coliform began Feb 2012 Resolved
Monitoring & reporting · Nitrate began Jan 2011 Resolved
Max contaminant level (MCL) · Arsenic health-based began Apr 2009 Resolved
Monitoring & reporting · Nitrate began Jan 2009 Resolved
Max contaminant level (MCL) · Arsenic health-based began Jan 2009 Resolved
Max contaminant level (MCL) · Arsenic health-based began Oct 2008 Resolved
Max contaminant level (MCL) · Arsenic health-based began Jul 2008 Resolved
Monitoring & reporting · Arsenic began Apr 2008 Resolved
Max contaminant level (MCL) · Arsenic health-based began Apr 2008 Resolved
Max contaminant level (MCL) · Arsenic health-based began Jan 2008 Resolved
Monitoring & reporting · Nitrate began Jan 2007 Resolved

Recent enforcement actions

  • State action · SOX Jan 2018
  • State action · SOX Jan 2018
  • State action · SFL Jul 2015
  • State action · SOX Nov 2012
  • State action · SFL Apr 2012
  • State action · SOX Mar 2012
  • State action · SFL Mar 2012
  • State action · SOX Jul 2011

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

Arsenic

1 station · latest Jun 2021

23.4 · max 23.4 ug/l · 1

Fluoride

1 station · latest Jun 2021

0.62 · max 0.62 mg/l · 1

Lead

1 station · latest Jun 2021

0.347 · max 0.347 ug/l · 1

Manganese

1 station · latest Jun 2021

1.41 · max 1.41 ug/l · 1

Uranium

1 station · latest Jun 2021

1.78 · max 1.78 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 CA4410016 — 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.