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Water system · PWSID CA4810009

CITY OF DIXON

DIXON, CA · ~12,540 people served

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

PWSID

CA4810009

State

California

City

DIXON

Population served

12,540

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

Latest detections from EPA’s UCMR5 monitoring (through May 2025). Levels in parts per trillion (ppt).

Lithium

40,000 ppt

limit —

No federal limit

Violations & enforcement

2

Violations on record

0

Unaddressed

2

Health-based

4

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Apr 2002. Official EPA record →

Max contaminant level (MCL) · Total coliform health-based began Mar 2002 Resolved
Max contaminant level (MCL) · Total coliform health-based began Nov 2000 Resolved

Recent enforcement actions

  • State action · SOX Apr 2002
  • State action · SIA Apr 2002
  • State action · SIA Jan 2001
  • State action · SOX Dec 2000

This profile is built from EPA public records for system CA4810009 — 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.