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

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T HE W ARNER P ROJECT W ATER S UPPLY A SSESSMENT A UGUST 21, 2020 F USCOE E NGINEERING , I NC. 27 5. C ONCLUSION The City of Santa Ana depends on local and regional water supplies from Metropolitan to satisfy growing demands. OCWD has managed the OC Basin for over 75 years and has plans to sustainably manage the groundwater system through 2040 under the new California SGMA policies and guidelines. Metropolitan has stated in its 2015 UWMP that its water supply portfolio will be able to satisfy regional growth and water demands through 2040. The same findings were concluded in the City of Santa Ana 2015 UWMP as both Metropolitan and groundwater supplies are projected to meet future water demands. The 2015 City UWMP projected that water demands would grow from 37,008 AF in 2015 to 40,036 AF in 2040. Over the past several years, actual demand has substantially decreased due to local conservation and regional drought management regulations. Therefore, like most UWMPs, the 2015 City UWMP is conservative with projections of water supplies needed to satisfy demands through 2040. 2015 UWMP incorporates regional growth projections from CDR in order to determine future water demands. Projects like the Warner are included in these regional projections of future population growth and are tracked by the City. The proposed Project will demand approximately 269 AF per year (an increase of approximately 254 AF per year as compared to existing water demands which is well within the planned water supplies needed in the future in the City of Santa Ana. Therefore, this WSA is able to conclude adequate supplies are available to provide for the demands of the proposed Project as well as other service area demands within the City of Santa Ana.