CRESTA MESA PARQUE

FAIRFIELD, CA · ~25 people served

Check your exact address → FAIRFIELD overview

100

Excellent

PurityRadar safety score

PWSID

CA4800589

State

California

City

FAIRFIELD

Population served

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

Violations on record

Unaddressed

Health-based

Enforcement actions

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

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

Monitoring & reporting · Nitrate began Oct 1999 Resolved

Monitoring & reporting · Thallium began Oct 1999 Resolved

Monitoring & reporting · EPA contaminant 2990 began Oct 1997 Resolved

Monitoring & reporting · Total coliform began Sep 1994 Resolved

Monitoring & reporting · Lead & Copper Rule began Jul 1993 Resolved

Recent enforcement actions

State action · SOX Jun 2019
State action · SFL Feb 2019
State action · SOX Feb 2018
State action · SIA Feb 2004
EPA/federal action · EOX Dec 2003
State action · SIA Nov 2000
State action · SOX Oct 1994
State action · SIA Oct 1994

This profile is built from EPA public records for system CA4800589 — 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.