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T HE W ARNER P ROJECT <br />W ATER S UPPLY A SSESSMENT A UGUST 21, 2020 <br />F USCOE E NGINEERING , I NC. 19 <br />to 2013 consumption. In addition, the City only allows outdoor watering to every other day or <br />Monday, Thursday, and Saturday and only between the hours of 6 PM and 6 AM.12 <br /> <br />Such restrictions have significantly reduced water demands throughout California. In addition <br />to these mandated restrictions, cities must follow the Water Conservation Act of 2009, also <br />known as Senate Bill (SB) x7-7. This law required the State of California to reduce urban water <br />use by 20% by the year 2020. The City must determine baseline water use during their baseline <br />period and water use targets for the years 2015 and 2020 to meet the state’s water reduction <br />goal. The City’s 2015 target was 123 gallons per capita per day (GPCD) and the 2020 target <br />is 116 GPCD. The 2015 UWMP reported that the City has already met both the 2015 and <br />2020 water use targets with an actual use in 2015 of 83 GPCD. This is likely due to increased <br />conservation as required by the Governor’s Executive Order during severe drought conditions <br />throughout California. <br /> <br />The City’s water demand has been decreasing in recent years due to the combination of the <br />Governor’s Executive Order and SBx7-7 goals. The City’s water demands are then expected to <br />increase by approximately 8% from 2015 to 2040 as shown in the table below. <br /> <br />Table 7 City of Santa Ana Projected Total Water Demands <br />Water <br />Demand Type 2015 2020 2025 2030 2035 2040 <br />Potable and <br />Raw Water 36,656 36,678 39,397 39,669 39,658 39,716 <br />Recycled <br />Water 352 320 320 320 320 320 <br />Total Water <br />Demand 37,008 36,998 39,717 39,989 39,978 40,036 <br />Source: 2015 City of Santa Ana UWMP <br /> <br />As shown above, it is projected that water demands will increase from 37,008 AF in 2015 to <br />40,036 AF in year 2040 representing an increase of 3,028 AF. These estimates are <br />approximately 10,000 AF less than what was predicted in the 2010 UWMP further highlighting <br />the conservative nature of UWMP preparation. <br /> <br />The 2015 Metropolitan UWMP stated that Metropolitan would be able to meet the demands of <br />its member agencies, including the City of Santa Ana, through 2040. Therefore, imported water <br />demands for the City are projected to be met through the 20-year requirements of SB 610 and <br />beyond. The City of Santa Ana 2015 UWMP also confirmed the ability of the local supplies <br />and the OC Basin to meet the growing demands of the City. The ability for the City to meet <br />these growing demands in multiple climate scenarios is explained in the sections below. <br /> <br /> <br />12 City of Santa Ana – Water Conservation Website, accessed 10/01/2019. Found here: https://www.santa- <br />ana.org/sites/default/files/Documents/Drought_Flyer_Final_Eng_No_Cropmarks.pdf