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Water system · PWSID CA5710001

CITY OF DAVIS

DAVIS, CA · ~67,457 people served

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

PWSID

CA5710001

State

California

City

DAVIS

Population served

67,457

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

Latest detections from EPA’s UCMR5 monitoring (through Aug 2024). Levels in parts per trillion (ppt).

Lithium

34,900 ppt

limit —

No federal limit

Violations & enforcement

3

Violations on record

0

Unaddressed

3

Health-based

6

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement May 2005. Official EPA record →

Max contaminant level (MCL) · Total coliform health-based began Mar 2005 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jan 1996 Resolved
Max contaminant level (MCL) · Antimony health-based began Jan 1990 Resolved

Recent enforcement actions

  • State action · SOX May 2005
  • State action · SIF Mar 2005
  • State action · SOX Jan 1997
  • State action · SOX Feb 1996
  • State action · SO8 Feb 1996
  • EPA/federal action · EOX Jun 1990

This profile is built from EPA public records for system CA5710001 — 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.