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r <br />Submit OC-S9 Channel Losses Worksheet with Certifications for Delivery of Water to the <br />Metropolitan Storage Account. <br />For example: <br />Orange County Conjunctive Use Program <br />OC-S9 Channel Loss Worksheet for Month of May, 2003 <br />Total Monthly <br />AF Delivered Total Monthly Operation <br />Period (hours) Avg. AF/Hour Avg. AF/Day Average CFS Channel Losses <br />(AF) <br />1% or4% <br /> <br />297.5 AF 72 hours 4.13 AF! hours 99.17 AF/day 50.01 cfs 3.0 AF (1 %) <br /> <br />1,122.4 AF 321 hours 3.50 AFl hours 83.92 AFlday 42.32 cfs 44.9 AF (4~°) <br />B. Determination of Annual Storage Losses. <br />Each year OCWD will estimate the amount of groundwater lost from the groundwater basin and <br />present it to the operating committee for concurrence. The amount of losses will be divided by <br />1.0 million acre-feet (AF} which is the approximate total useable groundwater storage space in <br />the basin. This percentage will then be multiplied by the amount of water Metropolitan has <br />stored in the basin to determine how much Metropolitan water has been lost. <br />Modeling has shown that the amount of water lost from storage is directly related to the <br />District's accumulated overdraft, which is currently approximately 405,000 AF. The following <br />graphic was recently developed from those modeling efforts. <br />First Amendment 6 Groundwater Storage <br />