14 ATTACHMENT 1 EXHIBIT A - Laserfiche WebLink

This chapter summarizes the City's WSCP, seismic risk to City facilities, and WSCP adoption procedures. To allow for WSCP updates to be made outside of the UWMP preparation process, the City's WSCP is included in this plan as Appendix K. 8.1 WATER SHORTAGE CONTINGENCY PLANNING BACKGROUND Water shortages occur whenever the available water supply cannot meet the normally expected customer water use. This can be due to several reasons, including significant population growth, climate change, drought, and catastrophic events. Drought, regulatory actions, and natural and manmade disasters may occur at any time. A WSCP presents how an urban water supplier plans to respond to a water shortage condition and helps prevent catastrophic service disruptions. The 2018 Water Conservation Legislation set new requirements for water shortage contingency planning; the City's WSCP has been updated to be consistent with these requirements. 8.2 CITY WATER SHORTAGE CONTINGENCY PLAN The City's WSCP describes its strategic plan for preparing and responding to water shortages. The WSCP includes water shortage stages and associated shortage response actions, as well as the City's legal authorities, communication protocols, compliance and enforcement, and monitoring and reporting. The City's WSCP is included in this plan as Appendix K to allow for updates outside of the UWMP preparation process. The City intends for its WSCP to be dynamic, so that it may assess response action effectiveness and adapt to foreseeable and unforeseeable events. When an update to the WSCP is proposed, the revised WSCP will undergo the process described in Section 8.4. 8.3 SEISMIC RISK ASSESSMENT AND MITIGATION PLAN CWC §10632.5(a) requires that UWMPs include a seismic risk assessment and mitigation plan to assess and mitigate a water system's seismic vulnerabilities. A Local Hazard Mitigation Plan (LHMP) may be incorporated in this UWMP to meet this requirement if they address seismic risk. In coordination with Livermore and the City of Dublin (Dublin), the City developed a regional LHMP, which, among other hazards, addresses seismic risks for water infrastructure. The 2018 Tri -Valley Local Hazard Mitigation Plan (2018 LHMP) was adopted by Livermore, Dublin, and the City during the summer of 2018. It is available on the City's website', and is incorporated into this UWMP by reference. The Federal Emergency Management Agency (FEMA) found the 2018 LHMP in conformance with Title 44 Code of Federal Regulations Part 201.6 Local Mitigation Plans. 1 Tetra Tech, 2018. Tri -Valley Local Hazard Mitigation Plan. httio://www.citvofioleasantonca.jzov/jzov/deiots/cd/iolanniniz/plans n programs/tri valley hazard mitijzation iolan.asio WEST YOST N-680-60-20-04-WP-R-680-2020UWMP 8-1 City of Pleasanton 2020 Urban Water Management Plan May 2021