OHA Drinking Water Services
OR41
PWS ID: 95363 ---- USFWS TUALATIN RIVER NATL WLR

Most Recent Water System Survey
Survey date: Aug 26, 2025
Notification date: Sep 04, 2025 (9 days)
Regulating agency: WASHINGTON COUNTY
Survey frequency: 5 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
Cross Connection Testing records not current (CWS, NTNC, TNC)Jan 08, 2026 Sep 09, 2025
Monitoring & Reporting No coliform sampling planJan 08, 2026 Jan 02, 2026
Bold text indicates a significant deficiency. All others are unmet rule requirements.


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