OHA Drinking Water Services
OR41
PWS ID: 01309 ---- HAT ROCK WATER COMPANY

Most Recent Water System Survey
Survey Date: Dec 18, 2025
Notification Date: Jan 08, 2026 (21 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
Management & Operations Emergency response plan not completedMay 14, 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) 12/18/2025 3 YR  * 01/08/2026 (21) REGION 1 Show details
Sanitary Survey, Finished (SNSV) 12/28/2022 3 YR  * 01/30/2023 (33) REGION 1 Show details
Sanitary Survey, Finished (SNSV) 12/11/2019 3 YR  * 01/09/2020 (29) DWP Show details
Sanitary Survey, Finished (SNSV) 12/30/2016 3 YR  * 01/06/2017 (7) REGION 1 Hide details
 
Category Deficiency Due Date Resolved Date
Cross Connection No ordinance or enabling authority (CWS)May 12, 2017 Jan 26, 2017
Management & Operations PNC or out of compliance with AOMay 12, 2017 Aug 10, 2017 - Late
Monitoring & Reporting Monitoring not currentMay 12, 2017 Jan 17, 2017
Monitoring & Reporting MCL violationsMay 12, 2017 Aug 08, 2017 - Late
Sanitary Survey, Finished (SNSV) 10/10/2013 3 YR  * 10/25/2013 (15) DWP Show details
Sanitary Survey, Finished (SNSV) 05/12/2010 3 YR  * 06/07/2010 (26) DWP Show details
Sanitary Survey, Finished (SNSV) 05/20/2004 5 YR  * DWP Show details