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31 If supply shortfalls do occur, the City expects to meet these supply shortfalls through water demand reductions and other shortage response actions by implementation of its WSCP.10 Without implementation of the Bay-Delta Plan Amendment, the projected single dry year shortfalls (of 1 to 2 percent) would require implementation of Stage 1 of the City’s WSCP, which will reduce the gap by 5 percent. The projected multiple dry year shortfalls (of 1 to 11 percent) would require implementation of Stage 1 or 2 of the City’s WSCP, which will reduce the gap by 5 or 15 percent, respectively. As previously discussed, each stage of the City’s WSCP requires declaration by City Council, as well as various agency actions and restrictions on end users. The water saving impacts associated with these actions were quantitatively estimated through a DRT quantitative assessment, which is presented in Attachment 2 of the City’s WSCP, provided in Chapter 8 of the City’s 2020 UWMP. In addition, as previously mentioned, discussion of SFPUC’s Alternative Water Supply Planning Program is included in Section 6.1.3, and discussion of groundwater as a potential back-up supply is included in Section 5.3 of this WSA. Because these potential additional supplies are still being developed, they are not included in Table 7-2. Approximately 34% of total water demand including both potable and recycled water associated with the Proposed Project is included in the City’s water demand projections shown in its 2020 UWMP, and the reaming demand is within the available supply of the City. As can be seen by comparing Tables 7.1 and 7.2 (with the Bay Delta Plan) and Tables 7.3 and 7.4 (without the Bay Delta Plan), the additional Project demands do not change the level of shortage response the City would take in any scenario and the Proposed Project would be subject to the same water conservation and water use restrictions as other water users within the City’s system. 10 A main focus of the City’s planned demand reduction measures is to increase public outreach and keep customers informed of the water shortage emergency and actions they can take to reduce consumption. Other actions that the City will take include coordination with other agencies, implementing water rate incentives and penalties, increasing water waste patrols, etc. Additional information on the City’s WSCP is provided in Chapter 8 of the City’s 2020 UWMP. ATTY/RESO.0027/CC RESO WATER SUPPLY ASSESSMENT (920 SHASTA) - EXHIBIT A REV: 04-22-25 VR Page 31 of 42