OHA Drinking Water Services
OR41
PWS ID: 00600 ---- CHR DISTRICT IMPROVEMENT CO

Most Recent Water System Survey
Survey date: Sep 17, 2021
Notification date: Nov 05, 2021 (49 days)
Regulating agency: DWS (REGION 1)
Survey frequency: 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)Dec 27, 2021 Overdue
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) 09/17/2021  * 11/05/2021 (49) REGION 1 Show details
Water Treatment Plant Site Visit (TRTP) 09/17/2021 5 YR 09/17/2026 11/05/2021 (49) DWP No details
Sanitary Survey, Finished (SNSV) 05/12/2016 5 YR  * 05/13/2016 (1) REGION 1 No details
Water Treatment Plant Site Visit (TRTP) 05/12/2016 5 YR 05/12/2021 05/13/2016 (1) REGION 1 No details
Sanitary Survey, Finished (SNSV) 10/21/2010 5 YR  * 11/08/2010 (18) TILLAMOOK COUNTY Hide details
  Comments:
The deficiencies noted are as follows:

Treatment Deficiencies
1. Tracer study or alternative not conducted.
2. CT values not being calculated correctly.
3. Direct integrity testing not conducted daily.

Finished Water Storage Deficiencies
1. Vent for storage tank not screened.


Category Significant deficiency or unmet rule requirement Due date Resolved date
Finished Water Storage No screened ventNot tracked
Disinfection Failure to calculate CT values correctlyNot tracked
Disinfection No means to adequately determine disinfection contact time under peak flow and minimum storage conditionsNot tracked
Significant deficiency and unmet rule requirement dates were not tracked prior to 1/1/2014.
Sanitary Survey, Finished (SNSV) 09/02/2005 5 YR  * TILLAMOOK COUNTY Show details