EUGENE, OR · Lane County
DIAMOND RIDGE WATER ASSOCIATION Water System
Consumer Confidence Report status
DIAMOND RIDGE 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 no open violations for DIAMOND RIDGE WATER ASSOCIATION.
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)
- OR4106138
- System type
- Community Water System
- Population served
- 54
- Service connections
- 25
- Ownership
- privately owned
- Water source
- groundwater (wells)
DIAMOND RIDGE WATER ASSOCIATION is one of 1,168 community water systems in Oregon in the 500 or fewer people size category, serving 54 people from groundwater.
As of August 1, 2026, its federal record holds 6 entries between 2010 and 2016, all of which EPA lists as closed. Nothing has been added since 2016.
All 6 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 Lead and Copper Rule.
Violation history
Monitoring, Regular
—Gross Alpha, Excl. Radon and U
April 1, 2016 – June 30, 2016
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
January 1, 2014 – January 31, 2014
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
December 1, 2013 – December 31, 2013
ResolvedInitial Tap Sampling for Pb and Cu
—Lead and Copper Rule
July 1, 2011 – September 7, 2016
ResolvedMonitoring, Regular
—Carbofuran
July 1, 2010 – September 30, 2010
ResolvedMonitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
January 1, 2010 – December 31, 2010
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| April 1, 2016 – June 30, 2016 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Resolved |
| January 1, 2014 – January 31, 2014 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| December 1, 2013 – December 31, 2013 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| July 1, 2011 – September 7, 2016 | Initial Tap Sampling for Pb and Cu | Lead and Copper Rule | — | Resolved |
| July 1, 2010 – September 30, 2010 | Monitoring, Regular | Carbofuran | — | Resolved |
| January 1, 2010 – December 31, 2010 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
No enforcement actions on record for this system.
Common questions
Is DIAMOND RIDGE WATER ASSOCIATION required to publish a Consumer Confidence Report?
- Yes. DIAMOND RIDGE 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 DIAMOND RIDGE WATER ASSOCIATION’s next Consumer Confidence Report due?
- DIAMOND RIDGE WATER ASSOCIATION’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does DIAMOND RIDGE WATER ASSOCIATION have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for DIAMOND RIDGE WATER ASSOCIATION.
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
DIAMOND RIDGE WATER ASSOCIATION
541-342-1718
EUGENE, OR 97402