SAN LUIS HILLS

LOS BANOS, CA · ~779 people served

Check your exact address → LOS BANOS overview

100

Excellent

PurityRadar safety score

PWSID

CA2400209

State

California

City

LOS BANOS

Population served

779

Primary source

Surface water

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 Oct 2019. Official EPA record →

Treatment technique · Bromate health-based began Apr 2019 Resolved

Treatment technique · Bromate health-based began Oct 2018 Resolved

Treatment technique · Bromate health-based began Jul 2018 Resolved

Treatment technique · Bromate health-based began Apr 2018 Resolved

Treatment technique · Bromate health-based began Jan 2018 Resolved

Treatment technique · Bromate health-based began Oct 2017 Resolved

Treatment technique · Bromate health-based began Apr 2015 Resolved

Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2015 Resolved

Treatment technique · Bromate health-based began Jan 2015 Resolved

Treatment technique · Bromate health-based began Oct 2014 Resolved

Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Oct 2014 Resolved

Treatment technique · Bromate health-based began Jul 2014 Resolved

Recent enforcement actions

State action · SOX Oct 2019
State action · SFL Mar 2019
State action · SOX Oct 2018
State action · SFL Jun 2018
State action · SOX Mar 2018
State action · SOX Mar 2018
State action · SFL Mar 2015
State action · SFL May 2012

This profile is built from EPA public records for system CA2400209 — 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.