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Water system · PWSID OR4192104

DIAMOND LAKE LODGE/RESORT

RIDDLE, OR · ~90 people served

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

PWSID

OR4192104

State

Oregon

City

RIDDLE

Population served

90

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

0

Unaddressed

12

Health-based

89

Enforcement actions

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

Other · EPA contaminant 7000 began Jul 2025 Resolved
Other · EPA contaminant 7000 began Oct 2024 Resolved
Other · EPA contaminant 7000 began Jul 2024 Resolved
Other · EPA contaminant 7000 began Oct 2023 Resolved
Other · EPA contaminant 7000 began Jul 2023 Resolved
Monitoring & reporting · Lead & Copper Rule began Oct 2021 Resolved
Monitoring · Lead & Copper Rule began Mar 2021 Resolved
Monitoring & reporting · Nitrate began Jan 2021 Resolved
Monitoring · Lead & Copper Rule began Jan 2021 Resolved
Monitoring · Lead & Copper Rule began Nov 2020 Resolved
Monitoring & reporting · Nitrate began Jan 2020 Resolved
Treatment technique · Lead & Copper Rule health-based began Jun 2016 Resolved

Recent enforcement actions

  • State action · SOX Sep 2025
  • State action · SOX Sep 2025
  • State action · SOX Sep 2024
  • State action · SOX Jul 2024
  • State action · SOX Feb 2022
  • State action · SOX Feb 2022
  • State action · SOX Apr 2021
  • State action · SOX Feb 2021

This profile is built from EPA public records for system OR4192104 — 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.