2022-06 Department of Water Supply Contingency Plans Follow-up

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History and Repair Status of North Kona Deepwells Since January 2017, up to five of DWS' deepwells were intermittently in and out of service, restricting water service to residents, businesses, and the public throughout North Kona. In response, DWS provided the public with a history and repair status for five deepwells located in North Kona: Honokohau, Hualalai, Keopu, Palani, and Wai`aha. Attachments 1.2 — 1.6a. In January 2018, DWS reported the schedule for Wai`aha Deepwell repair was unknown. Attachment 1.6b. In June 2022, DWS reported 25% mandatory water restriction measures were needed due to the failure of Hualalai Deepwell and approved the expedited purchase of replacement parts in efforts to return Hualalai Deepwell back to service. DWS stressed that water quality was not threatened by the loss of the well. Attachment 1.7. Subsequently in July 2022, DWS reported interim repairs were made to the Kalaoa Deepwell, downgrading North Kona areas to 10% voluntary water conservation. DWS said they are confident that the water needs of the community will be met with the voluntary conservation in effect and will continue to monitor the water system and adjust as necessary. Attachment 1.8. Conclusion Contingency and continuity plans are similar: they both require specific procedures in instances where things go wrong to allow for continuing operations. A continuity plan is a broader plan that includes steps on the prevention and recovery of operations in the event of a disaster. Whereas a contingency plan is a vital part of the continuity plan that helps organizational leaders prepare for all kinds of worst-case scenarios. In other words, contingency plans cover in -the -moment procedures in an emergency while a continuity plan covers how an organization will recover to normal operations. Best practices say that contingency plans should address specific criteria for the initiation and termination of water shortage stages, procedures for notification and education of the public, and procedures for monitoring the situation during water shortage stages. We commend the Department of Water Supply for their efforts to improve contingency plans and providing water to customers during a disruption of deepwell operations. To further strengthen internal controls over contingency plans, we've identified the following opportunities: DWS should: • Review and update written plans accordingly • Consolidate applicable guidance • Make plans accessible to appropriate DWS staff • Re -certify Continuity of Operations Plan annually Executive Summary 3