OHA Drinking Water Services
OR41
PWS ID: 94930 ---- LANGDON LAKE WATER COOPERATIVE

Most Recent Water System Survey
Survey Date: Nov 13, 2025
Notification Date: Nov 18, 2025 (5 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 No operations and maintenance manualMar 24, 2026 Dec 01, 2025


 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  * 11/18/2025 (5) REGION 1 Hide details
 
Category Deficiency Due Date Resolved Date
Management & Operations No operations and maintenance manualMar 24, 2026 Dec 01, 2025
Sanitary Survey, Finished (SNSV) 07/14/2020 5 YR  * 07/28/2020 (14) REGION 1 Show details
Sanitary Survey, Finished (SNSV) 10/28/2015 5 YR  * 11/24/2015 (27) REGION 1 Show details
Sanitary Survey, Finished (SNSV) 07/24/2009 5 YR  * 08/26/2009 (33) DWP Show details
Sanitary Survey, Finished (SNSV) 09/20/2004 5 YR  * DWP Show details
 



More information for this water system: SDWIS ID 2894
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PFAS data are now located on the Chemical Results page.
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