2020-01 Performance Audit Report: Contingency Plans at County of Hawai'i's Department of Water Supply

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will be available for the duration of the situation to protect public health and safety and to balance the need for stream flows for instream resources, including fish habitat; Minimize the disruption to customers' lives and businesses while meeting target consumption goals; Maintain the highest drinking water quality standards throughout the shortage; and Promote equity among customers by establishing clear restrictions that affect all customers. o Triggers: The "Mandatory Stage" will be implemented if supply conditions have not improved, or the level of demand needs to be further reduced. Public Message, Communication Actions, Operating Actions, and Supply and Demand Management Actions are also included. • EMERGENCY CURTAILMENT STAGE: o Overview: This stage addresses the most severe need for demand reduction and includes a combination of mandatory measures and rate surcharges. This would be used as the last stage of a progressive situation, such as a drought of increasing severity, or to address an immediate crisis, such as a facility failure. o Objectives: Strive to meet the water use goals established for this stage, recognizing that customers' lives and businesses may be significantly impacted in order to achieve necessary water savings. o Triggers: The water savings needed to ensure sufficient water is available for public health and safety throughout the water shortage are not being achieved, or conditions have worsened, therefore, more stringent measures are needed. This stage also addresses Public Message, Communication Actions, Operating Actions, and Supply and Demand Management Actions. ➢ Salt Lake City Department of Public Utilities 2004 Water Conservation Master Plan: Water Shortage Contingency Plan: To summarize parts of the plan, Section VII: Stages and Responses state that "This Plan provides for five Water Shortage stages and responses of increasing severity, as progressively more serious conditions warrant. The triggering criteria described are based on the projected percentage of water available from a number of sources, including, but not limited to snow pack, soil moisture, surface water, ground water, stored water, and spot market water. Degrees of flexibility have been built into this Plan to allow for timely adjustments at all levels of planning and implementation. Key elements of a successful demand management program are that the resources and hardships are shared as Department of Water Supply Contingency Plan Appendix A 124