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.
Significant deficiencies and unmet rule requirements:
Category Significant deficiency or unmet rule requirement Due date Resolved date
Disinfection Unable to demonstrate minimum CTs are metJul 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
Surface Water Treatment Membrane filtration: Direct integrity testing does not meet requirementsNov 12, 2025 Jan 29, 2029 - Late
* A corrective action plan has been submitted for this significant deficiency or unmet rule requirement.


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