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Water system · PWSID 090605107

Yocha Dehe Potable Water System

Brooks, CA · ~12,800 people served

Check your exact address → Brooks overview
100
Excellent
PurityRadar safety score

PWSID

090605107

State

California

City

Brooks

Population served

12,800

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

8

Violations on record

0

Unaddressed

2

Health-based

13

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Feb 2026. Official EPA record →

Monitoring & reporting · Gross alpha began Jul 2023 Resolved
Monitoring & reporting · Combined radium-226/228 began Jul 2023 Resolved
Monitoring & reporting · Uranium began Jul 2023 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2015 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2015 Resolved
Max contaminant level (MCL) · Total coliform health-based began Apr 2007 Resolved
Max contaminant level (MCL) · Total coliform health-based began Aug 2005 Resolved
Monitoring & reporting · Total coliform began Jul 2005 Resolved

Recent enforcement actions

  • EPA/federal action · EOX Feb 2026
  • EPA/federal action · EOX Feb 2026
  • EPA/federal action · EOX Nov 2023
  • EPA/federal action · EOX Nov 2023
  • EPA/federal action · EOX Sep 2016
  • EPA/federal action · EOX Sep 2016
  • EPA/federal action · EOX Jan 2010
  • EPA/federal action · EOX Jan 2010

This profile is built from EPA public records for system 090605107 — 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.