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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. 12 <br />3. R EGIONAL W ATER S UPPLIES AND D EMANDS <br />3.1 CITY WATER SUPPLIES <br />The City’s water supply comes from a combination of imported water, local groundwater and <br />recycled water to satisfy water demands. The City purchases these water supplies from <br />Metropolitan Water District of Southern California (Metropolitan) and the Orange County Water <br />District (OCWD). The City is a member agency of Metropolitan and receives imported water <br />from the State Water Project and the Colorado River under agreements with Metropolitan. <br />OCWD manages the Orange County Groundwater Basin (“OC Basin” or “Basin”) and provides <br />groundwater resources to the City. <br /> <br />The City maintains 444 miles of transmission and distribution mains, nine reservoirs with a <br />storage capacity of 49.3 million gallons, seven pumping stations, 20 wells, and seven imported <br />water connections. The seven imported water connections to the Metropolitan System are <br />described in Table 4 below. <br /> <br />Table 4 City of Santa Ana Connections to Metropolitan Facilities <br />MWD Connection Name of Connection Normal Operating <br />Capacity (MGD) <br />Design Capacity <br />(MGD) <br />SA-1 Bristol 5.17 6.46 <br />SA-2 First 5.17 9.69 <br />SA-3 McFadden 5.17 6.46 <br />SA-4 Warner 4.85 6.46 <br />SA-5 Alton 4.85 12.93 <br />SA-6 Santa Clara 7.76 12.93 <br />SA-7 Red Hill 4.85 32.31 <br /> <br />From 2005-2015, Metropolitan delivered between 3,000 AF or 2.6 MGD (2015, lowest <br />delivery) to 13,000 AF or 11.6 MGD (2005, highest delivery) to the City.3 The design capacity <br />of the Metropolitan connections is more than adequate to deliver imported to the City as shown <br />in the table above. <br /> <br />The City’s Water Utility provides water service within a 27-square mile service area. The service <br />area includes the City of Santa Ana and a small neighborhood in the City of Orange, near <br />Tustin Avenue and Fairhaven by the northeast corner of Santa Ana. See Table 5 which shows <br />the City’s recent water supply to satisfy demands from 2015. <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />3 2015 Metropolitan UWMP.