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Water system · PWSID 090605021

Original Sherwood Valley Rancheria

Willits, CA · ~60 people served

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

PWSID

090605021

State

California

City

Willits

Population served

60

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

197

Violations on record

0

Unaddressed

5

Health-based

370

Enforcement actions

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

Reporting · EPA contaminant 5200 began Oct 2024 Resolved
Monitoring & reporting · EPA contaminant 0999 began Oct 2023 Resolved
Monitoring · Lead & Copper Rule began Dec 2022 Resolved
Monitoring & reporting · EPA contaminant 0999 began Oct 2022 Resolved
Monitoring & reporting · Nitrate began Jan 2022 Resolved
Treatment technique · EPA contaminant 0700 health-based began Dec 2021 Resolved
Reporting · Lead & Copper Rule began Dec 2021 Resolved
Max contaminant level (MCL) · Lead & Copper Rule health-based began Oct 2021 Resolved
Monitoring & reporting · Total coliform began Mar 2014 Resolved
Monitoring & reporting · Total coliform began Dec 2011 Resolved
Monitoring & reporting · Uranium began Jan 2009 Resolved
Monitoring & reporting · Combined radium-226/228 began Jan 2009 Resolved

Recent enforcement actions

  • EPA/federal action · EIA Apr 2025
  • EPA/federal action · EIA Apr 2025
  • EPA/federal action · EOX Mar 2025
  • EPA/federal action · EOX Feb 2024
  • EPA/federal action · EOX Aug 2023
  • EPA/federal action · EOX Feb 2023
  • EPA/federal action · EOX Oct 2022
  • EPA/federal action · EOX Jan 2022

This profile is built from EPA public records for system 090605021 — 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.