OHA Drinking Water Services
OR41
PWS ID: 01233 ---- DEER ISLAND WATERWORKS

Most Recent Water System Survey
Survey date: Dec 12, 2025
Notification date: Jan 03, 2026 (22 days)
Regulating agency: COLUMBIA 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
Cross Connection Annual summary report not issued (CWS)May 09, 2026
Management & Operations No operations and maintenance manualMay 09, 2026
Management & Operations Emergency response plan not completed (CWS, NTNC)May 09, 2026
Management & Operations Annual CCR not distributed (CWS)May 09, 2026
Monitoring & Reporting Monitoring not currentMay 09, 2026
Monitoring & Reporting Unaddressed MCL violationsMay 09, 2026
Operator Certification No DRC at required certification level May 09, 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) 12/12/2025 3 YR  * 01/03/2026 (22) COLUMBIA COUNTY Show details
Sanitary Survey, Finished (SNSV) 08/18/2022 3 YR  * 10/27/2022 (70) COLUMBIA COUNTY Show details
Sanitary Survey, Finished (SNSV) 10/25/2019 3 YR  * 11/24/2019 (30) COLUMBIA COUNTY Show details
Sanitary Survey, Finished (SNSV) 10/14/2016 3 YR  * 12/23/2016 (70) COLUMBIA COUNTY Show details
Sanitary Survey, Finished (SNSV) 05/24/2013 3 YR  * 07/19/2013 (56) CLACKAMAS COUNTY Hide details
  Comments:
The deficiencies noted are as follows:

Treatment and Disinfection Deficiencies
1. pH, Temperature, and chlorine residual not measured daily at first user
2. Chlorine residuals are not measured and recorded as required
Distribution Deficiencies
1. No ordinance or enabling authority
2. Annual summary report not submitted
Management & Operations Deficiencies
1. Annual consumer confidence report not published as required

Category Significant deficiency or unmet rule requirement Due date Resolved date
Cross Connection No ordinance or enabling authority (CWS)Not tracked
Cross Connection Annual summary report not issued (CWS)Not tracked
Management & Operations Annual CCR not distributed (CWS)Not tracked
Disinfection Chlorine not measured & recordedNot tracked
Disinfection pH, temperature, and chlorine residual not measured daily at first userNot tracked
Significant deficiency and unmet rule requirement dates were not tracked prior to 1/1/2014.
Sanitary Survey, Finished (SNSV) 04/17/2009 3 YR  * 05/29/2009 (42) COLUMBIA COUNTY No details
Sanitary Survey, Finished (SNSV) 06/20/2006 3 YR  * 06/20/2006 (0) COLUMBIA COUNTY No details
Sanitary Survey, Finished (SNSV) 10/29/2001 3 YR  * COLUMBIA COUNTY Show details