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Water system · PWSID CA2410005

CITY OF LOS BANOS

LOS BANOS, CA · ~47,419 people served

Check your exact address → LOS BANOS overview
85
Excellent
PurityRadar safety score

PWSID

CA2410005

State

California

City

LOS BANOS

Population served

47,419

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 Mar 2025). Levels in parts per trillion (ppt).

Lithium

9,980 ppt

limit —

No federal limit

Violations & enforcement

5

Violations on record

0

Unaddressed

3

Health-based

9

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Oct 2025. Official EPA record →

Treatment technique · EPA contaminant 5200 health-based began Oct 2024 Addressed
Reporting · EPA contaminant 5200 began Oct 2024 Addressed
Max contaminant level (MCL) · Total coliform health-based began Aug 2014 Resolved
Monitoring & reporting · Total coliform began Jan 2002 Resolved
Max contaminant level (MCL) · Total coliform health-based began Nov 1992 Resolved

Recent enforcement actions

  • EPA/federal action · EFL Oct 2025
  • State action · SOX Dec 2014
  • State action · SFL Dec 2014
  • State action · SOX Feb 2002
  • State action · SIA Jan 2002
  • EPA/federal action · EOX Dec 1993
  • EPA/federal action · EFJ May 1993
  • State action · SOX Dec 1992

This profile is built from EPA public records for system CA2410005 — 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.