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Water system · PWSID CA3510002

SAN JUAN BAUTISTA, CITY OF

SAN JUAN BAUTISTA, CA · ~2,335 people served

Check your exact address → SAN JUAN BAUTISTA overview
85
Excellent
PurityRadar safety score

PWSID

CA3510002

State

California

City

SAN JUAN BAUTISTA

Population served

2,335

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

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

11

Violations on record

2

Unaddressed

7

Health-based

11

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Oct 2018. Official EPA record →

Reporting · EPA contaminant 5200 began Oct 2024 Unaddressed
Treatment technique · EPA contaminant 5200 health-based began Oct 2024 Unaddressed
Other began Oct 2017 Resolved
Max contaminant level (MCL) · Thallium health-based began Oct 2017 Resolved
Max contaminant level (MCL) · Thallium health-based began Jul 2017 Resolved
Other began Jul 2017 Resolved
Max contaminant level (MCL) · Thallium health-based began Apr 2017 Resolved
Max contaminant level (MCL) · Nitrate health-based began Apr 2014 Resolved
Max contaminant level (MCL) · Nitrate health-based began Jun 2002 Resolved
Max contaminant level (MCL) · Nitrate health-based began Sep 1999 Resolved
Monitoring & reporting · Lead & Copper Rule began Jul 1993 Resolved

Recent enforcement actions

  • State action · SOX Oct 2018
  • State action · SOX Mar 2018
  • State action · SFM Jul 2017
  • State action · SOX Jan 2015
  • State action · SFL May 2014
  • State action · SFL Aug 2002
  • State action · SOX Aug 2002
  • EPA/federal action · EOX Mar 2000

This profile is built from EPA public records for system CA3510002 — 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.