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4.2 Direct Demand and Storage Sources For Replac.�nent Water Table S lists sources of direct flow (owned, leased or bypassed), ei�lueat and recharge projects, either under contract, owned or leased by the WAS, which are available for replacement supply for Apri12004 through March 2005. Copies of all lease documents aze contained in Appendix E. All pending purchases of water rights are required to have accompanying dry-up covenants. Table 6 presents the expected montlily deliveries from the replacement sources listed in Table 5. These �pected monthly deliveries are estimated from average 1974 — 2002 deliveries based on �e prorated diversion records from the State Engineer. Table 6 also presents t1�e monthly summer and winter return flow factors computed for each replacement water source in order to preserve historical return flows. These retum flow factors were obtained from: (1) decreed values, (2) calculated from a historic use analysis for the specific shares owned by Central, or (3) from other analyses conducted on shares not owned by Central. Appendix D contains documentation of Iristoric return 8ow factors used in Table 6. Appendix E contains the Decrees for water rights purc�ased by Central that have been changed and dry-up cove�nants for water rights purchased by Ceirtral that ha.ve not been changed, along with copies of the Applications for Change of Water Rights, if filed 43 Recharge Sourcea For Replacement Water 2004 deliveries from a few water supply sources, including rechazge sources, were not available. Table 6 contains the expected recharge credits that will be available during the period April l, 2004 through Mazch 31, 2005 based on estimated deliveries to the recharge facilities. Monthly accounting will be based on actual deliveries to these facilities. 4A Bypass Flows If Central's sources of replacement water for WAS, direct flow, reservoir and rechazge sources, do not provide sufficient replacement water at arrytime during ti�e irrigation season, Central will provide necessary additional replacement water with bypassed surface water flows. Based on the SPWUA's 2003 SWSP, Central understands bypass flows may be used only as a temporary replacement source. The general concept of bypass flows is to provide necessary replacement flows to the Cache la Poudre and South Platte Rivers by bypassing farm headgate diversions and measuring these bypassed diversions at the tail end of the respective ditches before the bypassed diversions aze rehuned to either tfie Cache La Poudre or South Platte Rivers. For calculation purposes, it will be asswned t�t �e irrigators who bypass a portion of their farm headgate diversion entitlement will increase well pumping to provide for that portion of their irrigation supplies formerly provided from surface water. In addition, the WAS Boazd of Directors wishes to reserve, as an option, the opporhanity to lease surface water shares with a dry-up condition (i.e. an interruptible supply). Table 6 lists the ditches and nwnber of ditch shares to be bypassed in the 2�4 imgation season in order to cover out of priority depletions. Use of bypass flows for replacin� out of priority depletions will also require maintenance of the original return flows that would have resulted if the fazm headgate diversions had been used for irrigation rather than being bypassed for replacement purposes. Table 6 lists the rehun flow P:\Data\GEN\CC.'WCD\25087\SWSP WAS\?A04 WAS SaPSP (PINAL).doc 9