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2025 WATER SHORTAGE CONTINGENCY PLAN <br /> MAY 2026/FINAL DRAFT/CAROLLO <br /> monthly to their Board of Directors. MET WSDM planning involves the examination of developing <br /> demand and supply conditions for the calendar year, as well as considerations of potential actions <br /> consistent with the WSDM Plan. Additionally, City staff simultaneously provide water supply and demand <br /> reports to MET to inform them of emerging demand and supply conditions. These monthly analyses <br /> provide key information for MET to manage resources to meet a range of estimated demands and adjust <br /> to changing conditions throughout the year. Based on the year's supply conditions and WSDM actions, <br /> MET will present a completed AWSDA for its member agencies' review from which they will then seek <br /> Board approval in April of each year. Additionally, MET expects that any triggers or specific shortage <br /> response actions that result from the AWSDA will be approved by their Board at that time and this <br /> information will be incorporated into the City's AWSDA. <br /> The Water Resources Manager, or Designee, will be responsible for approval of an AWSDA in June and <br /> formally submit to DWR prior to the July 1 deadline. <br /> 3 ?.2 Data and Methodologies <br /> The following paragraphs document the key data inputs and methodologies that are used to evaluate the <br /> water system reliability for the coming year, while considering that the year to follow would be considered <br /> d ry. <br /> 3.2.2.1 Assessment Methodology <br /> The City will evaluate water supply reliability for the current year and one dry year for the purpose of the <br /> AWSDA.The AWSDA determination will be based on considerations of unconstrained water demand, <br /> local water supplies, MET imported water supplies, planned water use, and infrastructure considerations. <br /> The balance between projected in-service area supplies, coupled with MET imported supplies, and <br /> anticipated unconstrained demand will be used to determine what, if any, shortage level is expected <br /> under the WSCP framework as presented in Figure S. The WSCP's standard shortage levels are defined in <br /> terms of shortage percentages. Shortage percentages will be calculated by dividing the difference <br /> between water supplies and unconstrained demand by total unconstrained demand.This calculation will <br /> be performed separately for anticipated current year conditions and for assumed dry year conditions. <br /> Shortage identifies n <br /> annual assessment <br /> Implement— <br /> \ iV 4 1. Shortage response <br /> actions in WSCP <br /> • �, 2. Compliance and <br /> enforcement actions in <br /> � line with Ordinance <br /> 3. Communication actions <br /> in WSCP <br /> Develop Water Shortage Conduct annual ' No further action <br /> Contingency Plan water supply and needed that year <br /> concurrently with updated demand assessment <br /> Ordinance <br /> (to be periodically revised) <br /> No shortage <br /> identified in annual <br /> assessment <br /> Figure 5 Water Shortage Contingency Plan AWSDA Framework <br /> CITY OF SANTA ANA 12 <br />