OHA Drinking Water Services
OR41
PWS ID: 95706 ---- NPS OREGON CAVES NATIONAL MONUMENT O&M

Most Recent Water System Survey
Survey date: Aug 16, 2023
Notification date: Sep 25, 2023 (40 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
Monitoring & Reporting Monitoring not currentJun 30, 2024 * Overdue
Management & Operations Major modifications not approved (plan review)Sep 23, 2024 * Overdue
Operator Certification No DRC at required certification level Sep 23, 2024 * Overdue
Operator Certification No protocol for under certified operatorSep 23, 2024 * Overdue
Disinfection No means to adequately determine flow rate on contact chamber effluent lineSep 23, 2024 * Overdue
Disinfection Failure to calculate CT values correctlySep 23, 2024 * Overdue
Cross Connection Testing records not current (CWS, NTNC, TNC)Nov 13, 2023 Jan 10, 2024 - Late
Management & Operations No operations and maintenance manualNov 13, 2023 Jan 10, 2024 - Late
Management & Operations Emergency response plan not completed (CWS, NTNC)Nov 13, 2023 Jan 10, 2024 - Late
Monitoring & Reporting No coliform sampling planNov 13, 2023 Jan 10, 2024 - Late
Disinfection Free chlorine residual not maintainedNov 13, 2023 Jan 10, 2024 - Late
Surface Water Treatment Turbidimeters not calibrated per manufacturer or at least quarterlyNov 13, 2023 Jan 10, 2024 - Late
* A corrective action plan has been submitted for this significant deficiency or unmet rule requirement.


 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) 08/16/2023 5 YR  * 09/25/2023 (40) REGION 2 Show details
Water Treatment Plant Site Visit (TRTP) 08/16/2023 6 MN 02/16/2024 09/25/2023 (40) REGION 2 No details