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Water system · PWSID CA3910003

ESCALON, CITY OF

ESCALON, CA · ~7,429 people served

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

PWSID

CA3910003

State

California

City

ESCALON

Population served

7,429

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

2

Violations on record

0

Unaddressed

0

Health-based

5

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Mar 2000. Official EPA record →

Monitoring & reporting · Total coliform began Jan 1998 Resolved
Monitoring & reporting · Total coliform began Jan 1994 Resolved

Recent enforcement actions

  • EPA/federal action · EOX Mar 2000
  • State action · SOX Feb 1998
  • State action · SOX Feb 1994
  • EPA/federal action · EOX Dec 1993
  • EPA/federal action · EFJ May 1993

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

Nitrate

1 station · latest Mar 2020

3.79 · max 3.79 mg/l as N · 2

Arsenic

1 station · latest Mar 2020

3.4 · max 3.4 ug/l · 1

Copper

1 station · latest Mar 2020

1.8 · max 1.8 ug/l · 1

Fluoride

1 station · latest Mar 2020

0.25 · max 0.25 mg/l · 1

Lead

1 station · latest Mar 2020

0.276 · max 0.276 ug/l · 1

Uranium

1 station · latest Mar 2020

0.111 · max 0.111 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 CA3910003 — 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.