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