FAIRVIEW, OR · Multnomah County
WEST INTERLACHEN WATER CO-OP Water System
Inactive system
This water system is marked inactive in EPA’s federal records as of December 15, 1998. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.
If you are a resident looking for your current water provider, see water systems in Multnomah County, OR.
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)
- OR4100903
- System type
- Community Water System
- Population served
- 135
- Service connections
- 45
- Ownership
- privately owned
- Water source
- groundwater (wells)
WEST INTERLACHEN WATER CO-OP is one of 1,168 community water systems in Oregon in the 500 or fewer people size category, formerly serving 135 people from groundwater.
EPA's federal records list this system as inactive in 1998; the record below is historical.
As of August 1, 2026, its federal record holds 7 entries between 1976 and 1993, all of which EPA lists as closed. Nothing has been added since 1993.
All 7 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 and the Radionuclides and Revised Rad Rule.
Violation history
Monitoring, Routine Major (TCR)
—Coliform (TCR)
April 1, 1993 – April 30, 1993
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
October 1, 1992 – October 31, 1992
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
October 1, 1992 – October 31, 1992
ArchivedMonitoring, Routine Major (TCR)
—Coliform (TCR)
September 1, 1992 – September 30, 1992
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
August 1, 1992 – August 31, 1992
ResolvedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
June 1, 1976 – May 31, 1980
ArchivedMonitoring, Regular
—Combined Radium (-226 and -228)
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 |
|---|---|---|---|---|
| April 1, 1993 – April 30, 1993 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| October 1, 1992 – October 31, 1992 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| October 1, 1992 – October 31, 1992 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Archived |
| September 1, 1992 – September 30, 1992 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| August 1, 1992 – August 31, 1992 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| June 1, 1976 – May 31, 1980 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Archived |
| June 1, 1976 – May 31, 1980 | Monitoring, Regular | Combined Radium (-226 and -228) | — | Archived |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- December 15, 1998State Compliance achieved2 linked violations
- June 11, 1996State Compliance achieved1 linked violation
- November 15, 1994State Public Notification received2 linked violations
Last known contact on file (system is inactive)
Not on record
503-667-5115
FAIRVIEW, OR 97024