SIERRA LINDA MUTUAL WATER CO

NORTH FORK, CA · ~200 people served

Check your exact address → NORTH FORK overview

Excellent

PurityRadar safety score

PWSID

CA2000506

State

California

City

NORTH FORK

Population served

200

Primary source

Groundwater

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 85 Jun 18, 2026 · score 85

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

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement May 2015. Official EPA record →

Treatment technique · EPA contaminant 5200 health-based began Oct 2024 Unaddressed

Reporting · EPA contaminant 5200 began Oct 2024 Unaddressed

Max contaminant level (MCL) · Total coliform health-based began Sep 2013 Resolved

Max contaminant level (MCL) · Total coliform health-based began Nov 2011 Resolved

Monitoring & reporting · Lead & Copper Rule began Jul 1993 Resolved

Recent enforcement actions

State action · SOX May 2015
State action · SIE Aug 2014
State action · SIE Aug 2014
State action · SIE Aug 2014
State action · SIA Aug 2014
State action · SIA Aug 2014
State action · SIA Aug 2014
State action · SIA Aug 2014

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 May 2021

33 · max 33 ug/l · 1

Copper

1 station · latest May 2021

0.58 · max 0.58 ug/l · 1

Fluoride

1 station · latest May 2021

0.52 · max 0.52 mg/l · 1

Lead

1 station · latest May 2021

0.176 · max 0.176 ug/l · 1

Manganese

1 station · latest May 2021

40.8 · max 40.8 ug/l · 1

Uranium

1 station · latest May 2021

88.2 · max 88.2 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 CA2000506 — 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.