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002390 As noted in paragraph 8, submittal of the initial report was required by June 1, 2001. The Districts requested, and received from the United States, an extension of the reporting deadline, from June 1, 2001 to October 1, 2001, This extension was required as the result of problems in obtaining data for the required period of record, The following study provides the basis for this initial report in satisfaction of the requirements of Paragraph 8 of the Subordination Agreement. This report is divided into four sections: Section 1.0 is the Introduction, Section 2.0 of this report describes the water rights and structures that benefit from the Subordination Agreement, Section 3.0 describes the diversions and depletions associated with these water rights; and Section 4.0 summarizes the results of the study, 2.0 WATER RIGHTS AND STRUCTURES The purpose of this section is to quantify all of the water rights that benefit from the Subordination Agreement. Water rights for minimum instream flow rights, rights for minimum natural lake levels, and any conditional water rights that were not exercised in 2000 were excluded. The water rights in the area of interest were determined from the water rights tabulation maintained by the Colorado Division of Water Resources (DWR). The tabulation was taken from the Colorado Decision Support System (CDSS) website developed by the DWR. The tabulation report summarizing the net absolute amount associated with each water right was utilized for the purposes of this report. The net amount is the net water right at a given structure after accounting for transfers between structures and any portion of a water right that was abandoned. All water rights senior to the Aspinall Unit water rights were removed from this list (rights senior to administration number of 39398.00000 which is a priority date of November 13, 1957), The list was then sorted for water rights within the study area, which qualify for the subordination of Aspinall Unit water rights under the Subordination Agreement. Next, the Aspinall Unit water rights and any water rights for minimum instream flow or rights for minimum natural lake levels were eliminated from the list. Finally, the conditional water rights that could benefit from the Subordination Agreement, but were not exercised in 2000, were excluded from the list. Appendix A is a listing of the 2,161 water rights which qualify for subordination of Aspinall Unit water rights under the Subordination Agreement. If there is more than one water right associated with a given structure, then a separate row is shown for each water right. Figure 1 presents the location of the water rights shown in Appendix A. 2