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Water system · PWSID OR4101470

LONE OAK ESTATES

TANGENT, OR · ~258 people served

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

PWSID

OR4101470

State

Oregon

City

TANGENT

Population served

258

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

67

Violations on record

0

Unaddressed

0

Health-based

19

Enforcement actions

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

Monitoring · Lead & Copper Rule began Sep 2025 Resolved
Monitoring · Lead & Copper Rule began Jul 2025 Resolved
Monitoring & reporting · Nitrate began Jan 2005 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2005 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2005 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 2005 Resolved
Other · EPA contaminant 7000 began Oct 2004 Resolved
Other · EPA contaminant 7000 began Jul 2004 Resolved
Other · EPA contaminant 7000 began Oct 2003 Resolved
Other · EPA contaminant 7000 began Jul 2003 Resolved
Monitoring & reporting · EPA contaminant 2378 began Jan 2002 Resolved
Monitoring & reporting · EPA contaminant 2380 began Jan 2002 Resolved

Recent enforcement actions

  • State action · SOX Oct 2025
  • State action · SOX Sep 2025
  • EPA/federal action · EOX Jul 2010
  • State action · SOX Dec 2008
  • State action · SOX Nov 2006
  • State action · SOX Nov 2006
  • State action · SOX Jan 2006
  • State action · SOX Jul 2005

This profile is built from EPA public records for system OR4101470 — 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.