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Water system · PWSID OR4100580

NORTH CLACKAMAS COUNTY WC

HAPPY VALLEY, OR

Check your exact address → HAPPY VALLEY overview
100
Excellent
PurityRadar safety score

PWSID

OR4100580

State

Oregon

City

HAPPY VALLEY

Population served

—

Primary source

Surface water

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

9

Violations on record

0

Unaddressed

5

Health-based

17

Enforcement actions

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

Treatment technique · EPA contaminant 0200 health-based began Dec 2024 Resolved
Monitoring & reporting · EPA contaminant 2991 began Apr 2020 Resolved
Monitoring & reporting · Total coliform began Dec 1995 Resolved
Max contaminant level (MCL) · Total coliform health-based began Dec 1993 Resolved
Max contaminant level (MCL) · Total coliform health-based began Feb 1992 Resolved
Max contaminant level (MCL) · Total coliform health-based began Dec 1991 Resolved
Monitoring & reporting · Total coliform began Nov 1991 Resolved
Max contaminant level (MCL) · Total coliform health-based began Nov 1991 Resolved
Monitoring & reporting · Total coliform began Nov 1991 Resolved

Recent enforcement actions

  • State action · SIF Feb 2025
  • State action · SIE Feb 2025
  • State action · SOX Feb 2024
  • State action · SOX Aug 2020
  • State action · SOX Jan 2007
  • State action · SOX Jan 2007
  • State action · SOX Jan 2007
  • State action · SOX Jan 2007

This profile is built from EPA public records for system OR4100580 — 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.