OHA Drinking Water Services
OR41
PWS ID: 00372 ---- HERMISTON, CITY OF

Most Recent Water System Survey
Survey date: Nov 13, 2025
Notification date: Nov 24, 2025 (11 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
Cross Connection Testing records not current (CWS, NTNC, TNC)Mar 31, 2027 *
* A corrective action plan has been submitted for this significant deficiency or unmet rule requirement.


 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) 11/13/2025 3 YR  * 11/24/2025 (11) REGION 1 Show details
Sanitary Survey, Finished (SNSV) 08/03/2022 3 YR  * 09/01/2022 (29) REGION 1 Show details
Water Treatment Plant Site Visit (TRTP) 08/03/2022 3 YR 08/03/2025 09/01/2022 (29) REGION 1 No details
Sanitary Survey, Finished (SNSV) 09/18/2019 3 YR  * 01/21/2020 (125) DWP Show details
Water Treatment Plant Site Visit (TRTP) 09/18/2019 1 YR 09/18/2020 01/21/2020 (125) DWP No details
Sanitary Survey, Finished (SNSV) 05/24/2016 3 YR  * 06/24/2016 (31) REGION 1 Show details
Water Treatment Plant Site Visit (TRTP) 05/24/2016 3 YR 05/24/2019 06/24/2016 (31) REGION 1 No details
Sanitary Survey, Finished (SNSV) 12/12/2013 3 YR  * 02/06/2014 (56) REGION 1 Hide details
  Comments:
The deficiencies noted are as follows:

Source Deficiencies
1. Sanitary seal and casing not watertight Corrections completed and photos sent on Jan. 28th
2. Well does not meet setbacks from hazards

Distribution Deficiencies
Backflow or cross-connection devices not tested annually On Mar. 19th city contacted DWS to discuss ways to increase number of devices tested. City plans to implement immediately.

Category Significant deficiency or unmet rule requirement Due date Resolved date
Cross Connection Testing records not current (CWS, NTNC, TNC)Not tracked
Well Construction Sanitary seal and casing not watertightNot tracked
Significant deficiency and unmet rule requirement dates were not tracked prior to 1/1/2014.
Water Treatment Plant Site Visit (TRTP) 12/12/2013 5 YR 12/12/2018 02/06/2014 (56) REGION 1 Show details
Water Treatment Plant Site Visit (TRTP) 10/05/2011 1 YR 10/05/2012 10/26/2011 (21) REGION 1 Show details
Sanitary Survey, Finished (SNSV) 12/09/2010 3 YR  * 01/05/2011 (27) REGION 1 Show details
Water Treatment Plant Site Visit (TRTP) 12/09/2010 1 YR 12/09/2011 01/05/2011 (27) REGION 1 Show details
Sanitary Survey, Finished (SNSV) 01/17/2007 3 YR  * 01/25/2007 (8) DWP Show details
Water Treatment Plant Site Visit (TRTP) 01/17/2007 3 YR 01/17/2010 DWP Show details
Sanitary Survey, Finished (SNSV) 10/23/2003 3 YR  * DWP Show details