MEDFORD, OR · Jackson County
DARK HOLLOW WATER ASSOCIATION Water System
Consumer Confidence Report status
DARK HOLLOW WATER ASSOCIATION must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.
As of August 1, 2026, EPA's federal records show 4 items for DARK HOLLOW WATER ASSOCIATION that are open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Oregon’s official records. Always confirm current status with Oregon before making decisions based on this information.
System facts
- System ID (PWSID)
- OR4105117
- System type
- Community Water System
- Population served
- 45
- Service connections
- 13
- Ownership
- privately owned
- Water source
- groundwater (wells)
DARK HOLLOW WATER ASSOCIATION is one of 1,168 community water systems in Oregon in the 500 or fewer people size category, serving 45 people from groundwater.
As of August 1, 2026, its federal record holds 34 entries between 2008 and 2022, of which 4 remain open; none are health-based.
Of the 34, 28 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Total Coliform Rules, the Radionuclides and Revised Rad Rule, and the Stage 2 Disinfectants and Disinfection Byproducts Rule.
Violation history
Maximum Contaminant Level Violation, E. coli (RTCR)
Health-basedRevised Total Coliform Rule
September 1, 2022 – September 30, 2022
ResolvedMonitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
January 1, 2019 – December 31, 2021
ResolvedMonitoring and Reporting (DBP)
—TTHM
January 1, 2019 – December 31, 2021
ResolvedMonitoring, Regular
—Combined Uranium
October 1, 2017 – December 31, 2017
ResolvedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
October 1, 2017 – December 31, 2017
ResolvedMonitoring, Regular
—Combined Radium (-226 and -228)
October 1, 2017 – December 31, 2017
ResolvedMonitoring, Regular
—Combined Radium (-226 and -228)
July 1, 2017 – September 30, 2017
ResolvedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
July 1, 2017 – September 30, 2017
ResolvedMonitoring, Regular
—Combined Uranium
July 1, 2017 – September 30, 2017
ResolvedFollow-up Or Routine LCR Tap M/R
—Lead and Copper Rule
July 1, 2017 – December 21, 2017
ResolvedMonitoring, Routine (RTCR)
—Revised Total Coliform Rule
May 1, 2017 – May 31, 2017
ResolvedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
April 1, 2017 – June 30, 2017
ResolvedMonitoring, Regular
—Combined Radium (-226 and -228)
April 1, 2017 – June 30, 2017
ResolvedMonitoring, Regular
—Combined Uranium
April 1, 2017 – June 30, 2017
ResolvedMonitoring, Routine (RTCR)
—Revised Total Coliform Rule
April 1, 2017 – April 30, 2017
ResolvedMonitoring, Routine (RTCR)
—Revised Total Coliform Rule
February 1, 2017 – February 28, 2017
ResolvedMonitoring, Regular
—Combined Radium (-226 and -228)
January 1, 2017 – March 31, 2017
ResolvedMonitoring, Regular
—Combined Uranium
January 1, 2017 – March 31, 2017
ResolvedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
January 1, 2017 – March 31, 2017
ResolvedMaximum Contaminant Level Violation, E. coli (RTCR)
Health-basedRevised Total Coliform Rule
December 1, 2016 – December 31, 2016
ResolvedPublic Notification Violation for NPDWR Violation
—Public Notice
August 27, 2011
UnaddressedMonitoring, Source Water (GWR)
—E. COLI
June 1, 2011
UnaddressedMonitoring, Repeat Major (TCR)
—Coliform (TCR)
April 1, 2011 – June 30, 2011
ResolvedPublic Notification Violation for NPDWR Violation
—Public Notice
December 19, 2010
UnaddressedMonitoring, Routine Major (TCR)
—Coliform (TCR)
November 1, 2010 – November 30, 2010
ResolvedMonitoring, Repeat Major (TCR)
—Coliform (TCR)
October 1, 2010 – December 31, 2010
ResolvedMonitoring, Source Water (GWR)
—E. COLI
October 1, 2010
UnaddressedMonitoring, Routine Major (TCR)
—Coliform (TCR)
July 1, 2010 – September 30, 2010
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
April 1, 2010 – June 30, 2010
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
October 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—Nitrate
January 1, 2009 – December 31, 2009
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
January 1, 2009 – March 31, 2009
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
October 1, 2008 – December 31, 2008
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
July 1, 2008 – September 30, 2008
Resolved
Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yet
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| September 1, 2022 – September 30, 2022 | Maximum Contaminant Level Violation, E. coli (RTCR) | Revised Total Coliform Rule | Health-based | Resolved |
| January 1, 2019 – December 31, 2021 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Resolved |
| January 1, 2019 – December 31, 2021 | Monitoring and Reporting (DBP) | TTHM | — | Resolved |
| October 1, 2017 – December 31, 2017 | Monitoring, Regular | Combined Uranium | — | Resolved |
| October 1, 2017 – December 31, 2017 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Resolved |
| October 1, 2017 – December 31, 2017 | Monitoring, Regular | Combined Radium (-226 and -228) | — | Resolved |
| July 1, 2017 – September 30, 2017 | Monitoring, Regular | Combined Radium (-226 and -228) | — | Resolved |
| July 1, 2017 – September 30, 2017 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Resolved |
| July 1, 2017 – September 30, 2017 | Monitoring, Regular | Combined Uranium | — | Resolved |
| July 1, 2017 – December 21, 2017 | Follow-up Or Routine LCR Tap M/R | Lead and Copper Rule | — | Resolved |
| May 1, 2017 – May 31, 2017 | Monitoring, Routine (RTCR) | Revised Total Coliform Rule | — | Resolved |
| April 1, 2017 – June 30, 2017 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Resolved |
| April 1, 2017 – June 30, 2017 | Monitoring, Regular | Combined Radium (-226 and -228) | — | Resolved |
| April 1, 2017 – June 30, 2017 | Monitoring, Regular | Combined Uranium | — | Resolved |
| April 1, 2017 – April 30, 2017 | Monitoring, Routine (RTCR) | Revised Total Coliform Rule | — | Resolved |
| February 1, 2017 – February 28, 2017 | Monitoring, Routine (RTCR) | Revised Total Coliform Rule | — | Resolved |
| January 1, 2017 – March 31, 2017 | Monitoring, Regular | Combined Radium (-226 and -228) | — | Resolved |
| January 1, 2017 – March 31, 2017 | Monitoring, Regular | Combined Uranium | — | Resolved |
| January 1, 2017 – March 31, 2017 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Resolved |
| December 1, 2016 – December 31, 2016 | Maximum Contaminant Level Violation, E. coli (RTCR) | Revised Total Coliform Rule | Health-based | Resolved |
| August 27, 2011 | Public Notification Violation for NPDWR Violation | Public Notice | — | Unaddressed |
| June 1, 2011 | Monitoring, Source Water (GWR) | E. COLI | — | Unaddressed |
| April 1, 2011 – June 30, 2011 | Monitoring, Repeat Major (TCR) | Coliform (TCR) | — | Resolved |
| December 19, 2010 | Public Notification Violation for NPDWR Violation | Public Notice | — | Unaddressed |
| November 1, 2010 – November 30, 2010 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| October 1, 2010 – December 31, 2010 | Monitoring, Repeat Major (TCR) | Coliform (TCR) | — | Resolved |
| October 1, 2010 | Monitoring, Source Water (GWR) | E. COLI | — | Unaddressed |
| July 1, 2010 – September 30, 2010 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| April 1, 2010 – June 30, 2010 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| October 1, 2009 – December 31, 2009 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| January 1, 2009 – December 31, 2009 | Monitoring, Regular | Nitrate | — | Resolved |
| January 1, 2009 – March 31, 2009 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| October 1, 2008 – December 31, 2008 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| July 1, 2008 – September 30, 2008 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yet
Enforcement actions
No enforcement actions on record for this system.
Common questions
Is DARK HOLLOW WATER ASSOCIATION required to publish a Consumer Confidence Report?
- Yes. DARK HOLLOW WATER ASSOCIATION is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is DARK HOLLOW WATER ASSOCIATION’s next Consumer Confidence Report due?
- DARK HOLLOW WATER ASSOCIATION’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does DARK HOLLOW WATER ASSOCIATION have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show 4 items for DARK HOLLOW WATER ASSOCIATION that are open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.
What is a Consumer Confidence Report?
- A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.
Contact
DARK HOLLOW WATER ASSOCIATION
541-772-3546
MEDFORD, OR 97501