OHA Drinking Water Services
OR41
PWS ID: 93944 ---- DOUGLAS CO PKS WHISTLERS BEND

Most Recent Water System Survey
Survey date: Aug 20, 2025
Notification date: Sep 19, 2025 (30 days)
Regulating agency: DWS (REGION 2)
Survey frequency: 5 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
Distribution System 20 psi not maintained at all service connections at all timesNov 07, 2025 Dec 03, 2025 - Late
Management & Operations Major modifications not approved (plan review)Nov 07, 2025 Dec 12, 2025 - Late
Monitoring & Reporting Monitoring not currentNov 07, 2025 Dec 12, 2025 - Late
Monitoring & Reporting No coliform sampling planNov 07, 2025 Dec 03, 2025 - Late
Disinfection Unable to demonstrate minimum CTs are metNov 07, 2025 Dec 31, 2025 - Late
Disinfection Failure to calculate CT values correctlyNov 07, 2025 Dec 31, 2025 - Late
Surface Water Treatment Cartridge filtration: Filters not changed according to manufacturer's recommended pressure differentialNov 07, 2025 Dec 12, 2025 - Late
Bold text indicates a significant deficiency. All others are unmet rule requirements.


 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) 08/20/2025 5 YR  * 09/19/2025 (30) REGION 2 Show details
Sanitary Survey, Finished (SNSV) 11/05/2020 5 YR  * 12/22/2020 (47) REGION 2 Show details
Water Treatment Plant Site Visit (TRTP) 11/05/2020 5 YR 11/05/2025 12/22/2020 (47) REGION 2 No details
Sanitary Survey, Finished (SNSV) 12/08/2015 5 YR  * 12/25/2015 (17) DOUGLAS COUNTY Show details
Sanitary Survey, Finished (SNSV) 02/26/2009 5 YR  * 03/30/2009 (32) DOUGLAS COUNTY No details
Sanitary Survey, Finished (SNSV) 12/16/2003 5 YR  * DOUGLAS COUNTY Show details