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 Show details
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 Hide details
  Comments:
No coliform sampling plan, MCL violation in 2009 (RTC'd) also affects outstanding performer status
This site visit has not been entered into the deficiency database.

Sanitary Survey, Finished (SNSV) 05/20/2004 5 YR  * DWP Show details