DEL DIOS MUTUAL WATER COMPANY

ESCONDIDO, CA · ~330 people served

Check your exact address → ESCONDIDO overview

100

Excellent

PurityRadar safety score

PWSID

CA3700866

State

California

City

ESCONDIDO

Population served

330

Primary source

SWP

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 Oct 2024. Official EPA record →

Other · EPA contaminant 7000 began Jul 2024 Addressed

Monitoring & reporting · Lead & Copper Rule began Oct 2020 Resolved

Monitoring & reporting · Nitrate began Jul 2018 Resolved

Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Oct 2017 Resolved

Monitoring & reporting · Total coliform began Apr 2013 Resolved

Monitoring & reporting · Total coliform began Sep 2008 Resolved

Max contaminant level (MCL) · Total coliform health-based began Oct 2007 Resolved

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

Recent enforcement actions

State action · SFL Oct 2024
State action · SOX Sep 2023
State action · SFJ Aug 2023
State action · SOX Sep 2019
State action · SFM May 2019
State action · SOX Aug 2018
State action · SOX May 2013
State action · SFL May 2013

This profile is built from EPA public records for system CA3700866 — 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.