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.


 Hide Site Visit History
Water System Site Visit History
Reason Visit date Frequency Next due Notification date
(Days after survey)
Responsible
agency
Comments and
significant deficiencies or unmet rule requirements
Sanitary Survey, Finished (SNSV) 08/26/2025 5 YR  * 09/04/2025 (9) WASHINGTON COUNTY Show details
Sanitary Survey, Finished (SNSV) 12/01/2020 5 YR  * 12/07/2020 (6) WASHINGTON COUNTY Show details
Sanitary Survey, Finished (SNSV) 12/14/2015 5 YR  * 03/30/2016 (107) WASHINGTON COUNTY No details
Sanitary Survey, Finished (SNSV) 10/23/2008 5 YR  * 10/27/2008 (4) WASHINGTON COUNTY No details