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.
Deficiencies:
Category Deficiency Due Date Resolved Date
Cross Connection Testing records not current (CWS, NTNC, TNC)Jan 12, 2026


 Hide Site Visit History
Water System Site Visit History
Reason Visit Date Frequency Next Due Notification Date
(Days after survey)		 Responsible
Agency		 Comments and
Deficiencies
Sanitary Survey, Finished (SNSV) 11/13/2025 3 YR  * 11/24/2025 (11) REGION 1 Hide details
 
Category Deficiency Due Date Resolved Date
Cross Connection Testing records not current (CWS, NTNC, TNC)Jan 12, 2026
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 Show details
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
 



More information for this water system: SDWIS ID 3731
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