OHA Drinking Water Services
OR41
PWS ID: 00665 ---- TUALATIN VALLEY WATER DISTRICT

Most Recent Water System Survey
Survey date: Jun 07, 2023
Notification date: Jun 26, 2023 (19 days)
Regulating agency: DWS (REGION 1)
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
Well Construction Unscreened well ventAug 14, 2023 Jun 20, 2023


 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) 06/07/2023 3 YR  * 06/26/2023 (19) REGION 1 Show details
Sanitary Survey, Finished (SNSV) 10/01/2020 3 YR  * 12/13/2020 (73) REGION 1 Show details
Sanitary Survey, Finished (SNSV) 09/21/2017 3 YR  * 10/19/2017 (28) REGION 1 Show details
Water Treatment Plant Site Visit (TRTP) 09/21/2017 3 YR 09/21/2020 10/19/2017 (28) REGION 1 No details
Sanitary Survey, Finished (SNSV) 09/10/2013 3 YR  * 09/30/2013 (20) REGION 1 Show details
Sanitary Survey, Finished (SNSV) 10/13/2009 3 YR  * 10/27/2009 (14) REGION 1 No details
Sanitary Survey, Finished (SNSV) 02/22/2006 3 YR  * 02/27/2006 (5) REGION 1 Hide details
  Comments:
Significant deficiences include: 1. No written decision making protocols for under-certified operators. 2. Some reservoirs do not have flap valves on overflow line outlets.
This site visit has not been entered into the deficiency database.

Sanitary Survey, Finished (SNSV) 04/11/2000 3 YR  * DWP Show details