CITY OF GUSTINE

GUSTINE, CA · ~6,110 people served

Check your exact address → GUSTINE overview

Excellent

PurityRadar safety score

PWSID

CA2410003

State

California

City

GUSTINE

Population served

6,110

Primary source

Groundwater

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 85 Jun 18, 2026 · score 85

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 Oct 2023). Levels in parts per trillion (ppt).

Lithium

21,000 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Dec 2019. Official EPA record →

Treatment technique · EPA contaminant 5200 health-based began Oct 2024 Unaddressed

Reporting · EPA contaminant 5200 began Oct 2024 Unaddressed

Monitoring & reporting · Lead & Copper Rule began Oct 2018 Resolved

Monitoring & reporting · Total coliform began May 2012 Resolved

Monitoring & reporting · Total coliform began Mar 2009 Resolved

Monitoring & reporting · Lead & Copper Rule began Jan 2006 Resolved

Monitoring & reporting · Nitrate began Jan 2003 Resolved

Monitoring & reporting · Lead & Copper Rule began Jan 2003 Resolved

Monitoring & reporting · Nitrate began Jan 2002 Resolved

Recent enforcement actions

State action · SOX Dec 2019
State action · SFL Feb 2019
State action · SOX Mar 2014
State action · SIA Jul 2012
State action · SOX Apr 2009
State action · SIA Apr 2009
State action · SOX Jan 2009
State action · SIA Jan 2009

This profile is built from EPA public records for system CA2410003 — 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.