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Water system · PWSID CA5805001

PLUMAS LAKE

100
Excellent
PurityRadar safety score

PWSID

CA5805001

State

California

City

OLIVEHURST

Population served

10,464

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

2

Violations on record

0

Unaddressed

0

Health-based

4

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Feb 2018. Official EPA record →

Monitoring & reporting · Total coliform began Jun 2005 Resolved
Monitoring & reporting · Nitrate began Jan 2004 Resolved

Recent enforcement actions

  • State action · SOX Feb 2018
  • State action · SIA Aug 2005
  • State action · SOX Jul 2005
  • State action · SIA Jun 2005

This profile is built from EPA public records for system CA5805001 — 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.