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eftliger City of Pleasanton i Water Shortage Contingency Plan rL£ASANTON Table 3.Cross-reference for Standard vs.Supplier Shortage Levels(DWR Table 8-1) Check the box if the Supplier uses the Standard six levels of water shortage. Proceed to the next table. Standard Shortage Percent Shortage Supplier's Shortage Percent Levels Range Levels Shortage Range 1 Up to 10% 1 Up to 10% 2 Up to 20% 2 Up to 20% 3 Up to 30% 3 Up to 30% 4 Up to 40% 4 Up to 40% 5 Up to 50% 5 Up to 50% 6 >50% 6 >50% PMC Chapter 9.30 includes stages that call for voluntary and/or mandatory water conservation to"reduce the consumption of water over an extended period of time, thereby extending the available water required for the city's customers while reducing the hardship to the greatest extent possible on or to the city and on or to the general public."Stages of action are dependent on the total amount of water supplied to the city by Zone 7 and the amount of water the City can pump out of the groundwater basin from its own wells. 4 SHORTAGE RESPONSE ACTIONS CWC §10632 (a)(4) requires shortage response actions that align with the defined shortage levels. Pleasanton's shortage response actions consist of a combination of demand reduction, supply augmentation, and operational changes.The specific suite of response actions implemented depends on the event that precipitates a water shortage stage,the time of the year the event occurs,the water supply sources available, and the condition of the City's water system infrastructure. For each response action, the City has estimated the extent to which the action will reduce the gap between supply and demand. The City tracks progress toward water use reduction goals during drought by comparing monthly water production for the same month in the most recent non-drought year to obtain a percent reduction. The City will increase or decrease its public outreach efforts based on observed use reduction. The City considers shortage response actions as tools for responding to water shortage conditions. 4.1 Supply Augmentation The City's normal supply portfolio remains purchased treated water from Zone 7 and local groundwater. During shortages, the City coordinates with Zone 7 on supply conditions and under extreme shortage conditions, may request to expand its GPQ from Zone 7, as indicated in Table 4. Ienvironment Public Draft I May 2026 &watoer 7 EKI Environment&Water, Inc.