OHA Drinking Water Services
OR41
PWS ID: 00719 ---- UMPQUA BASIN WATER ASSOC

Most Recent Water System Survey
Survey Date: Sep 12, 2025
Notification Date: Sep 24, 2025 (12 days)
Regulating Agency: DWS (REGION 2)
Survey Frequency: 3 YR  -  Visit the Water System Surveys page to see the list of surveys due each year.
Deficiencies:
Category Deficiency Due Date Resolved Date
Disinfection Minimum CT requirement not met all timesJul 31, 2026 *
Disinfection Failure to calculate CT values correctlyJul 31, 2026 *
Management & Operations Public notice not issued as requiredNov 12, 2025 Jan 29, 2026 - Late
Treatment Indirect integrity testing does not meet rule requirements Nov 12, 2025 Jan 29, 2026 - Late
Surface Water Treatment For membrane filtration: Direct integrity testing does not meet rule requirementsNov 12, 2025 Jan 29, 2029 - Late
* Corrective Action Plan has been submitted for this deficiency.


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More information for this water system: SDWIS ID 3904
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PFAS data are now located on the Chemical Results page.
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