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ELAN PROJECT
<br />WATER SUPPLY ASSESSMENT NOVEMBER 2, 2017
<br />• Each project and program to achieve the 75 percent BPP goal will be reviewed
<br />individually and assessed for their economic viability.
<br />The BPP goals mentioned above coincide with other management strategies as shown in
<br />OCWD's Long Term Facilities Plan (LTFP), the 2015 Groundwater Management Plan and the
<br />2020 Water Master Plan Report. These documents highlight OCWD's plans to ensure
<br />groundwater supply will be available into the future to support growing demands of its service
<br />area.
<br />As shown in Table 9 below, the City's available supply, including OCWD groundwater and
<br />Metropolitan imported water, will meet projected demand during normal, single dry and
<br />multiple dry years. For the City's 2015 UWMP, the normal dry year was selected as the City's
<br />2015 demand. A single -dry year is defined as a single year of no to minimal rainfall within a
<br />period that average precipitation is expected to occur. The City has documented that it is 100%
<br />reliable for single dry year demands from 2020 through 2040 with a demand increase of 6%
<br />using FY 2013-14 as the single dry -year. Multiple -dry years are defined as three or more years
<br />with minimal rainfall within a period of average precipitation. The City is capable of meeting all
<br />customers' demands with significant reserves held by Metropolitan, local groundwater supplies,
<br />and conservation in multiple dry years from 2020 through 2040 with a demand increase of 6%
<br />using FY 201 1-12 through FY 2013-14 as the driest years.
<br />Table 9 City of Santa Ana Multiple Climate Scenario Water Supply and Demand Comparison
<br />from 2020-2040 (AF)
<br />Forecast Year
<br />12020 2 225
<br />12030 12035
<br />12040
<br />Normal Year
<br />Supply totals
<br />36,998
<br />39,717
<br />39,989
<br />39,978
<br />40,036
<br />Demand totals
<br />36,998
<br />39,717
<br />39,989
<br />39,978
<br />40,036
<br />Single -Dry Year
<br />Supply totals
<br />39,278
<br />42,100
<br />42,388
<br />42,377
<br />42,438
<br />Demand totals
<br />39,218
<br />142,100
<br />42,388
<br />42,377
<br />42,438
<br />Multiple
<br />-Dry Year
<br />First year
<br />Supply totals
<br />39,218
<br />42,100
<br />42,388
<br />42,377
<br />42,438
<br />Demand totals
<br />39,218
<br />42,100
<br />42,388
<br />42,377
<br />42,438
<br />Second year
<br />Supply totals
<br />39,218
<br />42,100
<br />42,388
<br />42,377
<br />42,438
<br />Demand totals
<br />39,218
<br />42,100
<br />42,388
<br />42,377
<br />42,438
<br />Third year
<br />Supply totals
<br />39,218
<br />42,100
<br />42,388
<br />42,377
<br />42,438
<br />Demand totals
<br />39,218
<br />42,100
<br />42,388
<br />42,377
<br />42,438
<br />Source: 2015 City of Santa Ana UWMP
<br />FUSCOE ENGINEERING, INC. 23
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