OHA Drinking Water Services
OR41
PWS ID: 00042 ---- ANTELOPE, CITY OF

Most Recent Water System Survey
Survey date: Mar 11, 2026
Notification date: Mar 26, 2026 (15 days)
Regulating agency: WASCO COUNTY
Survey frequency: 3 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
Management & Operations Major modifications not approved (plan review)Jul 30, 2026
Monitoring & Reporting No coliform sampling planJul 30, 2026
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) 03/11/2026 3 YR  * 03/26/2026 (15) WASCO COUNTY Show details
Sanitary Survey, Finished (SNSV) 04/29/2022 3 YR  * 05/06/2022 (7) WASCO COUNTY Hide details
 
Category Significant deficiency or unmet rule requirement Due date Resolved date
Operator Certification No DRC at required certification level Dec 13, 2023 * Overdue
Management & Operations No operations and maintenance manualFeb 28, 2023 * Mar 06, 2023 - Late
Monitoring & Reporting No coliform sampling planFeb 28, 2023 * Mar 06, 2023 - Late
Well Construction Unscreened well ventFeb 28, 2023 * Jan 16, 2023
Disinfection DPD/EPA-approved method not usedFeb 28, 2023 * Feb 08, 2023
Disinfection Chlorine not measured & recordedFeb 28, 2023 * Feb 03, 2023
Cross Connection No ordinance or enabling authority (CWS)May 01, 2023 * Apr 06, 2023
Cross Connection Testing records not current (CWS, NTNC, TNC)May 01, 2023 * Apr 06, 2023
* A corrective action plan has been submitted for this significant deficiency or unmet rule requirement.
Sanitary Survey, Finished (SNSV) 10/25/2017 3 YR  * 12/27/2017 (63) WASCO COUNTY Show details
Sanitary Survey, Finished (SNSV) 12/11/2014 3 YR  * 01/05/2015 (25) WASCO COUNTY Show details
Sanitary Survey, Finished (SNSV) 12/08/2011 3 YR  * 12/27/2011 (19) WASCO COUNTY Show details
Sanitary Survey, Finished (SNSV) 10/22/2008 3 YR  * 10/29/2008 (7) WASCO COUNTY No details
Sanitary Survey, Finished (SNSV) 04/27/2006 3 YR  * 05/04/2006 (7) WASCO COUNTY No details
Sanitary Survey, Finished (SNSV) 07/22/2002 3 YR  * WASCO COUNTY Show details