CORVALLIS, OR · Benton County
RIDGEWOOD DIST IMPROV CO Water System
Consumer Confidence Report status
RIDGEWOOD DIST IMPROV CO 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 RIDGEWOOD DIST IMPROV CO.
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)
- OR4100229
- System type
- Community Water System
- Population served
- 90
- Service connections
- 40
- Ownership
- local government
- Water source
- groundwater (wells)
RIDGEWOOD DIST IMPROV CO is one of 1,168 community water systems in Oregon in the 500 or fewer people size category, serving 90 people from groundwater.
As of August 1, 2026, its federal record holds 16 entries between 1976 and 2025, all of which EPA lists as closed.
Of the 16, 10 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, inorganic chemicals, and the Radionuclides and Revised Rad Rule.
Violation history
Maximum Contaminant Level Violation, E. coli (RTCR)
Health-basedRevised Total Coliform Rule
March 1, 2025 – March 31, 2025
ResolvedMonitoring, Repeat Major (TCR)
—Coliform (TCR)
January 1, 2007 – January 31, 2007
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
December 1, 2006 – December 31, 2006
ResolvedMonitoring, Repeat Minor (TCR)
—Coliform (TCR)
November 1, 2006 – November 30, 2006
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
November 1, 2006 – November 30, 2006
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
October 1, 2006 – October 31, 2006
ResolvedMonitoring, Regular
—Nitrate
January 1, 2004 – December 31, 2004
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
November 1, 1999 – November 30, 1999
ResolvedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
June 1, 1999 – June 30, 1999
ResolvedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
April 1, 1997 – April 30, 1997
ResolvedMonitoring, Regular
—Nitrate
January 1, 1996 – December 31, 1996
ResolvedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
September 1, 1995 – September 30, 1995
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
February 1, 1993 – February 28, 1993
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
January 1, 1993 – January 31, 1993
ArchivedMonitoring, Regular
—Combined Radium (-226 and -228)
June 1, 1976 – May 31, 1980
ArchivedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
June 1, 1976 – May 31, 1980
Archived
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| March 1, 2025 – March 31, 2025 | Maximum Contaminant Level Violation, E. coli (RTCR) | Revised Total Coliform Rule | Health-based | Resolved |
| January 1, 2007 – January 31, 2007 | Monitoring, Repeat Major (TCR) | Coliform (TCR) | — | Resolved |
| December 1, 2006 – December 31, 2006 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| November 1, 2006 – November 30, 2006 | Monitoring, Repeat Minor (TCR) | Coliform (TCR) | — | Resolved |
| November 1, 2006 – November 30, 2006 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| October 1, 2006 – October 31, 2006 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | Nitrate | — | Resolved |
| November 1, 1999 – November 30, 1999 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| June 1, 1999 – June 30, 1999 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Resolved |
| April 1, 1997 – April 30, 1997 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Resolved |
| January 1, 1996 – December 31, 1996 | Monitoring, Regular | Nitrate | — | Resolved |
| September 1, 1995 – September 30, 1995 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Resolved |
| February 1, 1993 – February 28, 1993 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| January 1, 1993 – January 31, 1993 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Archived |
| June 1, 1976 – May 31, 1980 | Monitoring, Regular | Combined Radium (-226 and -228) | — | Archived |
| June 1, 1976 – May 31, 1980 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Archived |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- March 6, 2025State Public Notification received3 linked violations
- August 9, 2007State Compliance achieved21 linked violations
- May 13, 2002State Compliance achieved1 linked violation
- October 19, 2000State Compliance achieved1 linked violation
- October 8, 1999State Public Notification received3 linked violations
- November 10, 1998State Public Notification received1 linked violation
- October 9, 1998State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
Common questions
Is RIDGEWOOD DIST IMPROV CO required to publish a Consumer Confidence Report?
- Yes. RIDGEWOOD DIST IMPROV CO 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 RIDGEWOOD DIST IMPROV CO’s next Consumer Confidence Report due?
- RIDGEWOOD DIST IMPROV CO’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does RIDGEWOOD DIST IMPROV CO have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for RIDGEWOOD DIST IMPROV CO.
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
RIDGEWOOD DIST IMPROV CO
541-602-5552
CORVALLIS, OR 97330