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Box Elder Basin, and 6 percent in the Beebe Seep. Appendix B co�tains a suc�unary of these <br />lagged depletion estimates for 1974 through 2002. Based on the water balance for Box Elder <br />and the lagged depletion analysis, it was concluded that 10 perc�t of the annual estimated <br />ground water consumptive use would be a conservative estimate for steady-stats depletions to <br />the South Platte for both basins. <br />3.3 Determining Out of Yr�ority Depletions <br />The majority of the WAS membership consists of irrigators. The input files and model results <br />for each Reach are contained in Appendix C. These files require use of the IDSCU and <br />SDFView models for viewing (www.ids.colostate.edu}. For the non-irrigation contracts the <br />estimated on-site alluvial ground waxer net withdrawal was input into the SDFView model for <br />the period 1974 - 2004. Separate model runs were �ecuted for these non-irrigation pazcels and <br />aze also contained in Appendix C. Table 4 shows a summary of the annual stream depletions by <br />reach for WAS member wells for April l, 2004 through March 31, 2005. <br />Central will only replace thvse depletions from WAS member wells which reach the South Platte <br />River during those periods when a senior priority call is an for that reach of the river. Out of <br />priority depletions from WAS wells will be deternuned on the basis of the priority of the call and <br />in coordination wit� the Water Conmussioners and Division 1 Engineer during daily accounting <br />activities. <br />4A REPLACEMENT WATER SUPPLY SOURCES <br />4.1 General <br />Every yeaz Central allocates funds for ti�e continued acqirisition of water. In 2003, Central's <br />Boazd of Directors approved a budget of $1,000,000 for the purchase of senior water rights and <br />5500,000 for the lease of reusable efflu�t, direct flow and storage water for sources of supply to <br />replace WAS out-of-priority depletions in 2004. Central's Board has also allocaxed funds for the <br />purchase of gravel pit storage and recharge sites. For 2004, the WAS has purchased or is under <br />contract to purchase the water rights listed in Table 5, and is leasing additional water rights, also <br />listed in Table 5. In addition, WAS has instituted a policy to allow the use of excess replacement <br />credits from Central's Ground W�ter Management Subdistrict (GWMSD), if available. Note that <br />Central is presently seeking to acquire or lease additional unlmown replacement sowces, which <br />may be used for during the period of April 2004 tfirough March 2005 for replacement of out-of- <br />priority depletions. Monttily accounting reports submitted to the Division Engineer will be <br />updated with these new sources as they are acquired. <br />P:\Data\GEN\CCCVCD\25(187�SWSP WAS\2004 WAS SWSP (FINAL).doc <br />