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<br />Table 4
<br />Future Water Reliability (af/yr)
<br />
<br />Descri tion
<br />WATER DEMAND
<br />Existing Customers Base Projection
<br />New Customers
<br />Passive Conservation
<br />ctive Conservation
<br />otal Water Use (Billed)
<br />Unaccounted for Water 4%
<br />otal Water Demand
<br />ATER SUPPLY
<br />Redwood City Recycled Water 30
<br />ransfers / Exchanges in or out 0
<br />Desalination 0
<br />IRedwood Cit Groundwater 0
<br />
<br />ater Needed from SFPUC 12,428
<br />
<br />iScenario with No SFPUC Cutback (Normal Year)
<br />FPUC Water Supplies 12,428
<br />hortage 0
<br />% Shorta e 0%
<br />Scenario with 10% SFPUC Cutback (Single Dry Year)
<br />SFPUC Water Supplies (1) 11,201 10,899
<br />IShortage 1,226 372
<br />1% Shorta e 10.9% 3-4%
<br />cenario with 20% SFPUC Cutback (Multiple Dry Years)
<br />FPUC Water Supplies (1) 9,734 9,465 9,465 9,465 9,465 9,465
<br />Shortage 2,694 1,843 1,855 2,025 2,109 2,296
<br />~~b.s~rtage 27.7% 19.5% 19.7% 21.5% 22.4% 24.3%
<br />
<br />(1) The 2005 water supplies available to Redwood City are based on information contained in letter sent to Peter Ingram
<br />(City) from Paula Kehoe (SFPUC) dated June 1, 2005. The 2010 supplies are lower because the Redwood City-
<br />purchased water from SFPUC is expected to drop between 2005 and 2010. Other agencies will also be using more
<br />water, making less available for Redwood City. After 2010, the water supplies shown stay at 2010 levels. They could
<br />materially change with changes in the Master Contract and IWSAP scheduled to expire July 2009.
<br />Source: Redwood Cit 2005 UWMP.
<br />
<br />2005
<br />
<br />
<br />12,596
<br />-54
<br />-269
<br />-294
<br />11,979
<br />479
<br />12,458
<br />
<br />2010
<br />
<br />12,596
<br />283
<br />-523
<br />-632
<br />11,724
<br />469
<br />12,193
<br />
<br />922
<br />o
<br />o
<br />o
<br />11,271
<br />
<br />11,271
<br />o
<br />0%
<br />
<br />2015
<br />
<br />12,596
<br />586
<br />-712
<br />-488
<br />11,982
<br />479
<br />12,461
<br />
<br />1,178
<br />o
<br />o
<br />o
<br />
<br />11,283
<br />
<br />11,283
<br />o
<br />0%
<br />
<br />10,899
<br />384
<br />3.5%
<br />
<br />2020
<br />
<br />12,596
<br />1,027
<br />-853
<br />-413
<br />12,357
<br />494
<br />12,851
<br />
<br />1,398
<br />o
<br />o
<br />o
<br />11,453
<br />
<br />11,453
<br />o
<br />0%
<br />
<br />10,899
<br />554
<br />5.1%
<br />
<br />2025
<br />
<br />12,596
<br />1,458
<br />-959
<br />-373
<br />12,723
<br />509
<br />13,232
<br />
<br />1,695
<br />o
<br />o
<br />o
<br />11,537
<br />
<br />11,537
<br />o
<br />0%
<br />
<br />10,899
<br />638
<br />5.9%
<br />
<br />8A
<br />Page 12
<br />
<br />2030
<br />
<br />12,596
<br />1,974
<br />-1,038
<br />-341
<br />13,191
<br />528
<br />13,719
<br />
<br />1,995
<br />
<br />
<br />11,724
<br />o
<br />0%
<br />
<br />10,899
<br />82
<br />7.6%
<br />
<br />Is the Redwood City water supply sufficient for the Peninsula Park Project?
<br />
<br />The City can supply the Project water needs in non-shortage years.
<br />
<br />During shortages, however, the additional water use from the Project will cause less water
<br />to be available to existing water customers and new customers identified in the UWMP.
<br />Looking at 2025, the net impact of adding 80.8 af/yr of new demand with the single dry year
<br />scenario will be to increase the cutback from 5.9% to 6.6% (0.74% change). The net impact
<br />of the Project under a multiple dry year scenario will be to increase the cutback from 22.4%
<br />to 23.1% (0.85% change).
<br />
<br />Page 9 of 10
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