03-22-2021 BPU RPT 04 - Laserfiche WebLink

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W A T E R E NE R G Y I T F F � . RIVERSIDE PUBLIC UTILITIES kd& Board Memorandum P U B L I C U T I L I I I L S BOARD OF PUBLIC UTILITIES DATE: MARCH 22, 2021 SUBJECT: RIVERSIDE PUBLIC UTILITIES GROUNDWATER ATLAS UPDATE ISSUE: Receive this update on the Riverside Public Utilities Groundwater Atlas. RECOMMENDATION: That the Board of Public Utilities receives this update on the RPU's Groundwater Atlas. BACKGROUND: On June 24, 2019, the Board of Public Utilities (Board) approved a Supplemental Agreement for preparing the Riverside Public Utilities Groundwater Atlas (GW Atlas) for 2018 with Water Systems Consulting, Inc., of Rancho Cucamonga (WSC), in an amount not to exceed $102,140. The purpose for developing a GW Atlas was to establish a high-level reporting mechanism to describe the current condition of RPU's groundwater basins and also to prepare a framework for RPU staff to update future GW Atlas versions efficiently. The intent is to have an atlas -style document consisting of detailed exhibits that characterize the state of the groundwater basins with respect to hydrology, groundwater production, groundwater recharge, groundwater levels, groundwater quality, and groundwater storage. WSC developed a comprehensive hydrologic/hydrogeologic database, and analyzed, arranged, formatted, and documented the complex data in a clear and concise format. The final report will be posted on the utility's website and printed upon request. Many other water agencies in the region, such as Chino Basin Watermaster, Eastern Municipal Water District, and Orange County Water District, prepare annual groundwater assessments or state of the basin reports for evaluating changes in their local groundwater basins. DISCUSSION: The City of Riverside Public Utilities Department (RPU) provides potable water to 65,000 service connections, which serves over 310,000 people in the community. RPU currently owns and operates over 50 groundwater production wells, and has obtained 100 percent of its water supply from local groundwater basins since 2008. RPU has approximately 55,000 acre-feet