Public water system record

Ridgewood Dist Improv Co

Serves an area of Benton County, OR · 90 people served

Federal records show 1 health-based violation and no monitoring/reporting issues for Ridgewood Dist Improv Co in the last ten years. The most serious issue in this window was a resolved Revised Total Coliform Rule violation.

  • OR4100229
  • CORVALLIS
  • OR
  • 90 served

System profile

Source water Groundwater
ZIP 97330
EPA system ID OR4100229

Verify this system on EPA ECHO →

Health-based violations, last 10 years
1
Resolved
1
Unresolved
0
Any acute record
Yes
Monitoring issues, last 10 years
0

Key facts

  • Ridgewood Dist Improv Co draws water from 1 well.
  • Record on file since 1976, with 11 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 41 service lines.

Check whether Ridgewood Dist Improv Co serves your address

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Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

Contaminant Rule family Start date Status Acute
Revised Total Coliform Rule
Contaminant limit exceeded
110 Mar 1, 2025 Resolved Yes

Full record since 1976

EPA's records for Ridgewood Dist Improv Co go back to 1976. Before October 19, 2016 they list 11 health-based violations (10 resolved, 1 archived by EPA without a recorded fix) and 15 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1970s 0 2
1990s 7 9
2000s 4 4
2020s 1 0

Most recent health-based violation before October 19, 2016: Total Coliform, began January 2007, Resolved.

Show all 11 health-based violations before October 19, 2016
Contaminant Start date Status
Total Coliform
Contaminant limit exceeded
Jan 1, 2007 Resolved
Total Coliform
Contaminant limit exceeded
Dec 1, 2006 Resolved
Total Coliform
Contaminant limit exceeded
Nov 1, 2006 Resolved
Total Coliform
Contaminant limit exceeded
Oct 1, 2006 Resolved
Total Coliform
Contaminant limit exceeded
Nov 1, 1999 Resolved
Total Coliform
Contaminant limit exceeded
Oct 1, 1999 Resolved
Total Coliform
Contaminant limit exceeded
May 1, 1999 Resolved
Total Coliform
Contaminant limit exceeded
Nov 1, 1998 Resolved
Total Coliform
Contaminant limit exceeded
Oct 1, 1998 Resolved
Total Coliform
Contaminant limit exceeded
Oct 1, 1994 Resolved
Total Coliform
Contaminant limit exceeded
Jan 1, 1993 Archived

What the violations mean

Revised Total Coliform Rule

1 incident

The system did not meet a requirement of the Revised Total Coliform Rule

Coliform and E. coli rules protect against bacteria in the distribution system

Where the water comes from

Ridgewood Dist Improv Co draws water from 1 well.

Annual water quality report

Ridgewood Dist Improv Co must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.

Systems serving 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Ridgewood Dist Improv Co for a copy.

Find a posted report with EPA's Consumer Confidence Report search

Testing your own water

To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Oregon.