OHA Drinking Water Services
OR41
PWS ID: 94063 ---- WEST LINN/WILSONVILLE SD

Most Recent Water System Survey
Survey Date: Aug 07, 2025
Notification Date: Sep 12, 2025 (36 days)
Regulating Agency: CLACKAMAS COUNTY
Survey Frequency: 5 YR  -  Visit the Water System Surveys page to see the list of surveys due each year.
Deficiencies:
Category Deficiency Due Date Resolved Date
Operator Certification No certified operator at required levelJan 16, 2026
UV Disinfection Bypass around UV systemJan 16, 2026


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More information for this water system: SDWIS ID 1557
System Info  ::  Report for Lenders  ::  Alerts  ::  Violations  ::  Compliance & Enforcement  ::  Contacts & Advisories  ::  Site Visits  ::  Public Notice
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Chemical Summary  ::  Chemical Results  ::  Chemical Schedules  ::  Chemical Schedule Summary  ::  Arsenic RAA  ::  Cyanotoxins
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PFAS data are now located on the Chemical Results page.
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