Item 21 - Water Supply Assessment for the Warner - Red Hill Mixed Use Development Project

Home Browse Search

T HE W ARNER P ROJECT W ATER S UPPLY A SSESSMENT A UGUST 21, 2020 F USCOE E NGINEERING , I NC. 5 to amend Section 10910 of the Water Code, relating to land use1 and the Sustainable Groundwater Management Act (SGMA) that was passed by California’s Governor on September 16, 2014. Pursuant to SB 1262, as of January 1, 2017, WSAs are now required to reference certain SGMA-related information if water supply for a proposed project includes groundwater. Specifically, if a water supply for a proposed project includes groundwater, the following additional information shall be included in the water supply assessment: • A description of any groundwater basin or basins from which the proposed project will be supplied. • For those basins for which a court or the board has adjudicated the rights to pump groundwater, a copy of the order or decree adopted by the court or the board and a description of the amount of groundwater the public water system, or the city or county if either is required to comply with this part pursuant to subdivision (b), has the legal right to pump under the order or decree. • For a basin that has not been adjudicated that is a basin designated as high- or medium- priority pursuant to Section 10722.4, information regarding the following: o Whether the department has identified the basin as being subject to critical conditions of overdraft pursuant to Section 12924. o If a groundwater sustainability agency has adopted a groundwater sustainability plan or has an approved alternative, a copy of that alternative or plan. • For a basin that has not been adjudicated that is a basin designated as low- or very low priority pursuant to Section 10722.4, information as to whether the department has identified the basin or basins as overdrafted or has projected that the basin will become overdrafted if present management conditions continue, in the most current bulletin of the department that characterizes the condition of the groundwater basin, and a detailed description by the public water system, or the city or county if either is required to comply with this part pursuant to subdivision (b), of the efforts being undertaken in the basin or basins to eliminate the long-term overdraft condition. As described in more detail throughout this WSA, the proposed Project will utilize water from the Orange County Groundwater Basin that is designated as a medium priority basin. Therefore, additional information regarding groundwater supply and management will be included in this WSA to satisfy the requirements of SB 1262. This WSA contains information from the City’s 2015 UWMP, the Orange County Water Reliability Study prepared by Municipal Water District of Orange County (MWDOC), and information produced by the Orange County Water District (OCWD) and Metropolitan Water District of Southern California (Metropolitan). 1 Senate Bill No. 1262, CHAPTER 594, found here: http://leginfo.legislature.ca.gov/faces/billTextClient.xhtml?bill_id=201520160SB1262