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Water system · PWSID OR4105117

DARK HOLLOW WATER ASSOCIATION

MEDFORD, OR · ~45 people served

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

PWSID

OR4105117

State

Oregon

City

MEDFORD

Population served

45

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

35

Violations on record

4

Unaddressed

4

Health-based

36

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Dec 2022. Official EPA record →

Other · EPA contaminant 7500 began Aug 2011 Unaddressed
Monitoring & reporting · EPA contaminant 3014 began Jun 2011 Unaddressed
Other · EPA contaminant 7500 began Dec 2010 Unaddressed
Monitoring & reporting · EPA contaminant 3014 began Oct 2010 Unaddressed
Max contaminant level (MCL) · Lead & Copper Rule health-based began Sep 2022 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2019 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2019 Resolved
Monitoring & reporting · Uranium began Oct 2017 Resolved
Monitoring & reporting · Combined radium-226/228 began Oct 2017 Resolved
Monitoring & reporting · Gross alpha began Oct 2017 Resolved
Monitoring & reporting · Lead & Copper Rule began Jul 2017 Resolved
Monitoring & reporting · Gross alpha began Jul 2017 Resolved

Recent enforcement actions

  • State action · SOX Dec 2022
  • State action · SOX Nov 2022
  • State action · SIF Nov 2022
  • State action · SIE Sep 2022
  • State action · SIF Feb 2022
  • State action · SIF Jun 2019
  • State action · SOX Apr 2018
  • State action · SOX Dec 2017

This profile is built from EPA public records for system OR4105117 — 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.