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Water system · PWSID CA3710006

ESCONDIDO, CITY OF

ESCONDIDO, CA · ~137,044 people served

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

PWSID

CA3710006

State

California

City

ESCONDIDO

Population served

137,044

Primary source

Surface water

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

Latest detections from EPA’s UCMR5 monitoring (through Nov 2023). Levels in parts per trillion (ppt).

Lithium

16,000 ppt

limit —

No federal limit

Violations & enforcement

1

Violations on record

0

Unaddressed

1

Health-based

2

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Nov 2009. Official EPA record →

Max contaminant level (MCL) · Total coliform health-based began Jun 2009 Resolved

Recent enforcement actions

  • State action · SFL Nov 2009
  • State action · SOX Jul 2009

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

Copper

1 station · latest Aug 2020

1.75 · max 2.1 ug/L · 2

Manganese

1 station · latest Aug 2020

40.5 · max 46 ug/L · 2

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 CA3710006 — 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.