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Public water system record

Knoll Terrace Subdivision

On record as serving Douglas County, OR · Serves 221 people

Federal records show no health-based violations and 3 monitoring/reporting issues for Knoll Terrace Subdivision in the last ten years. At least one of these issues remains unresolved.

  • OR4101560
  • CANYONVILLE
  • OR
  • 221 served

System profile

Source water Purchased surface water
ZIP 97417
EPA system ID OR4101560

Verify this system on EPA ECHO →

Health-based violations, last 10 years
0
Resolved
0
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
3

Key facts

  • Knoll Terrace Subdivision buys its water from City of Canyonville.
  • Lead pipe inventory: 0 lead and 133 unknown out of 133 service lines.

Check whether Knoll Terrace Subdivision 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.

None since October 2016.

Monitoring and reporting issues

Since October 2016

Missed tests or reports, not contaminants found above a limit.

Issue Start date Status
Consumer Confidence Rule
OTHER
 Jul 1, 2025 Active
Revised Total Coliform Rule
Monitoring violation
 Jun 1, 2023 Resolved
Revised Total Coliform Rule
Monitoring violation
 May 1, 2023 Resolved

Where the water comes from

Knoll Terrace Subdivision buys its water from City of Canyonville. It lists no wells or intakes of its own.

Buys water from

Annual water quality report

Knoll Terrace Subdivision 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 Knoll Terrace Subdivision 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.

Certified drinking water labs by state EPA guidance for private wells