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 Show details
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 Hide details
 
Category Significant deficiency or unmet rule requirement Due date Resolved date
Cross Connection Annual summary report not issued (CWS)May 11, 2015 Overdue
Management & Operations No operations and maintenance manualMay 11, 2015 Overdue
Management & Operations Emergency response plan not completed (CWS, NTNC)May 11, 2015 Overdue
Monitoring & Reporting No coliform sampling planMay 11, 2015 Overdue
Operator Certification No protocol for under-certified operatorMay 11, 2015 Overdue
Disinfection DPD/EPA-approved method not usedMay 11, 2015 Overdue
Disinfection Chlorine not measured & recordedMay 11, 2015 Overdue
Other Treatment Non-NSF approved chemicalsMay 11, 2015 Overdue
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