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o Objective: Prepare the Department, City, relevant agencies and <br />water users for potential water shortage thereby allowing all parties <br />adequate planning and coordination time. <br />o Triggers: There are a variety of weather and other conditions that <br />may cause concern about water availability and a potential water <br />shortage. SPU will enter the "Advisory Stage" if supply conditions <br />and supply forecasts raise significant concerns about the utility's <br />ability to meet supply needs later in the year. <br />In addition, it addresses Public Message, Communication Actions, and <br />Operating Actions during this Advisory Stage. <br />• Voluntary Stage: <br />o Overview: If supply conditions worsen, the plan moves to the <br />Voluntary Stage which relies on voluntary cooperation and support <br />of customers to meet target consumption goals. During this stage, <br />specific voluntary actions are suggested for both residential and <br />commercial customers. <br />o Objectives: Take necessary supply management actions to further <br />stretch available supply; Maintain or reduce demand to meet target <br />consumption levels by customer voluntary actions; Forestall or <br />minimize need later for more stringent demand or supply <br />management actions; Minimize the disruption to customers' lives <br />and businesses while meeting target consumption goals; and <br />Maintain the highest drinking water quality standards throughout <br />the shortage. <br />o Triggers: The "Voluntary Stage" will be implemented when one or <br />both of the following factors applies: 1) supply conditions have not <br />improved, or have worsened, 2) demand levels need to be reduced <br />given supply conditions. <br />Public Message, Communication Actions, Operating Actions, and <br />Supply and Demand Management Actions are also addressed like the <br />Advisory Stage above. <br />• Mandatory Stage: <br />o Overview: If the Voluntary Stage does not result in the reduction <br />needed, or supply conditions worsen, the Mandatory Stage would <br />be implemented. This stage prohibits or limits certain actions, and <br />may be accompanied by an enforcement plan which could include <br />fines for repeated violation. <br />o Objectives: Achieve targeted consumption reduction goals by <br />restricting defined water uses; Ensure that adequate water supply <br />Department of Water Supply Contingency Plan Appendix A 123 <br />