SUN MOUNTAIN M.W.C.

MT. SHASTA, CA · ~106 people served

Check your exact address → MT. SHASTA overview

100

Excellent

PurityRadar safety score

PWSID

CA4700686

State

California

City

MT. SHASTA

Population served

106

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

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Sep 2021. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Oct 2019 Resolved

Max contaminant level (MCL) · Total coliform health-based began Aug 2014 Resolved

Max contaminant level (MCL) · Total coliform health-based began Sep 2005 Resolved

Max contaminant level (MCL) · Total coliform health-based began May 1997 Resolved

Max contaminant level (MCL) · Total coliform health-based began Aug 1996 Resolved

Max contaminant level (MCL) · Total coliform health-based began Aug 1993 Resolved

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

Recent enforcement actions

State action · SOX Sep 2021
State action · SFJ Feb 2021
State action · SOX Sep 2014
State action · SIE Aug 2014
State action · SOX Nov 2005
State action · SIE Oct 2005
EPA/federal action · EOX Mar 2000
State action · SOX Jun 1997

This profile is built from EPA public records for system CA4700686 — 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.