Home/ Directory/ CA/ Big Sandy Rancheria

Water system · PWSID 090600121

Big Sandy Rancheria

Auberry, CA · ~408 people served

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

PWSID

090600121

State

California

City

Auberry

Population served

408

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

148

Violations on record

3

Unaddressed

29

Health-based

417

Enforcement actions

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

Other · EPA contaminant 7500 began Jan 2025 Unaddressed
Other · EPA contaminant 7500 began Oct 2024 Unaddressed
Other · EPA contaminant 7500 began Apr 2024 Unaddressed
Max contaminant level (MCL) · Combined radium-226/228 health-based began Jan 2025 Resolved
Max contaminant level (MCL) · Combined radium-226/228 health-based began Oct 2024 Resolved
Max contaminant level (MCL) · Combined radium-226/228 health-based began Jul 2024 Resolved
Monitoring & reporting · EPA contaminant 0999 began Apr 2024 Resolved
Max contaminant level (MCL) · Combined radium-226/228 health-based began Apr 2024 Resolved
Monitoring & reporting · Combined radium-226/228 began Oct 2023 Resolved
Monitoring & reporting · EPA contaminant 3014 began Mar 2023 Resolved
Monitoring · Lead & Copper Rule began Feb 2023 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jan 2023 Resolved

Recent enforcement actions

  • EPA/federal action · EOX Jan 2026
  • EPA/federal action · EIA Sep 2025
  • EPA/federal action · EIA Sep 2025
  • EPA/federal action · EOX Jul 2025
  • EPA/federal action · EIA Jun 2025
  • EPA/federal action · EIA Jun 2025
  • EPA/federal action · EIA Apr 2025
  • EPA/federal action · EIA Apr 2025

This profile is built from EPA public records for system 090600121 — 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.