OHA Drinking Water Services
OR41
PWS ID: 95174 ---- COLUMBIA RIVER DAIRY

Most Recent Water System Survey
Survey Date: Oct 30, 2025
Notification Date: Nov 04, 2025 (5 days)
Regulating Agency: DEPT OF AGRICULTURE
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
Well Construction No screen on existing well ventMar 10, 2026
Disinfection Chlorine not measured & recorded as requiredMar 10, 2026
Bold text indicates that resolving this deficiency is a top priority.


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More information for this water system: SDWIS ID 4740
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PFAS data are now located on the Chemical Results page.
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