PORTLAND, OR · Washington County
WEST SLOPE WATER DISTRICT Water System
Current status
No open violations on record as of July 4, 2026.
This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 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)
- OR4100660
- System type
- Community Water System
- Population served
- 11,000
- Service connections
- 3,234
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
Violation history
Consumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2023 – June 28, 2024
ResolvedPublic Education
Health-basedLead and Copper Rule
March 11, 2018 – March 21, 2018
ResolvedMonitoring, Routine (RTCR)
—Revised Total Coliform Rule
March 1, 2018 – March 31, 2018
ResolvedMonitoring, Routine (RTCR)
—Revised Total Coliform Rule
September 1, 2017 – September 30, 2017
ResolvedMonitoring, Routine (RTCR)
—Revised Total Coliform Rule
August 1, 2017 – August 31, 2017
ResolvedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
September 1, 2013 – September 30, 2013
ResolvedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
August 1, 2013 – August 31, 2013
ResolvedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
April 1, 2013 – April 30, 2013
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
October 1, 2011 – October 31, 2011
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
September 1, 2007 – September 30, 2007
ResolvedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
November 1, 2006 – November 30, 2006
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
April 1, 2006 – April 30, 2006
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
September 1, 1994 – September 30, 1994
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| July 1, 2023 – June 28, 2024 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| March 11, 2018 – March 21, 2018 | Public Education | Lead and Copper Rule | Health-based | Resolved |
| March 1, 2018 – March 31, 2018 | Monitoring, Routine (RTCR) | Revised Total Coliform Rule | — | Resolved |
| September 1, 2017 – September 30, 2017 | Monitoring, Routine (RTCR) | Revised Total Coliform Rule | — | Resolved |
| August 1, 2017 – August 31, 2017 | Monitoring, Routine (RTCR) | Revised Total Coliform Rule | — | Resolved |
| September 1, 2013 – September 30, 2013 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Resolved |
| August 1, 2013 – August 31, 2013 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Resolved |
| April 1, 2013 – April 30, 2013 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Resolved |
| October 1, 2011 – October 31, 2011 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| September 1, 2007 – September 30, 2007 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| November 1, 2006 – November 30, 2006 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Resolved |
| April 1, 2006 – April 30, 2006 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| September 1, 1994 – September 30, 1994 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- March 31, 2001State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
- December 18, 1995State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
Contact
WEST SLOPE WATER DISTRICT
503-292-2777
PORTLAND, OR 97298