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DEMANDS AND SUPPLIES
<br /> Zone 7 Three-Year Drought Analysis Based on SWRCB Guidelines
<br /> (Acre-Feet)
<br /> 2016 -2019
<br /> Actual Demand
<br /> Year 2013 2014 • 2015 2016
<br /> Potable Demand 43,200 30,200 25,400 34,500
<br /> Demand Projections
<br /> Year 2016 2017 2018 2019
<br /> •
<br /> Potable Demand 34.500 36,700 36,700 36,700
<br /> Non-Potable Demand 5,000 5.000 5,000 5,000
<br /> Supply Sources
<br /> Water Year Type/SWP (2016) 60% (2013) 35% (2014) 5% (2015) 20%
<br /> Allocation
<br /> Table A 48,400 28.200 4,000 16,100
<br /> SWP Carryover 13,400 6.200 15,900 5,100
<br /> Water Banks 300 0 14,000 19,000
<br /> Local Surface Water 9,100 12.500 500 3,000
<br /> Groundwater 4,500 5,000 12,000 8,000
<br /> Yuba Accord, BBID, etc 1,500 5,700 400 400
<br /> Total 77,200 57,600 46,800 51,600
<br /> Supply - Demand 37,700 15,900 5,100 9,900
<br /> (Excess Supply)
<br /> CONCLUSION: No shortage =_> no mandatory conservation target.
<br /> inrormation: rotabie aemanas incivae aeiiveries to retailers, airect retail, ana unaccountea-tor
<br /> water. Zone 7 Max Table A amount- 80,619 AF, SWP Carryover- 13,400 AF, Groundwater Bank
<br /> Storage (Water Banks): Semitropic- 59,200 AF, Cawelo- 15,200 AF, Local Surface Water Storage-
<br /> 9,100 AF, Local Groundwater Storage- 90,000 AF (Est). BBID = Byron Bethany Irrigation District
<br /> transfer
<br /> Assumptions: SWP Allocation remains at 60%. Demand Calculation (2017-2019) is based on
<br /> 2013 and 2014 average. Supply is based on current conditions for 2016, 2013 conditions for 2017,
<br /> 2014 conditions for 2018, etc. Recovery capacity from water banks in drought years is 15,000 AF
<br /> the first year of recovery and 19,000 AF the second year. Local Surface Water can be accessed
<br /> throughout the year. Groundwater pumping capacity is 12,000 AF per year. Conservation during
<br /> drought period (2017-2019) is about 15% of the 2013 production. Conservation in 2016 is 20% of
<br /> 2013 production.
<br /> W:\WSE\Programs\Treated\Operations\16CY\Drought 3-Yr Analysis(SWRCB)6-10-16.xlsx 6/14/2016
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