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I I I I I I I I I I I I I I I I I I I ,:;) (J w' o ~ t;.l1 . Mr. David L. Pope and Ms. Mary Louise Clay May 23, 2000 Page 2 river reaches where no replacements or only partial replacements were made to replace out-of- priority depletions to senior surface water rights in Colorado. Table 3 shows the remaining stream depletions caused by irrigation pumping in excess of the pre-Compact entitlements which were not replaced by making replacements to senior surface water rights in Colorado. These stream depletions were computed using the wellhead depletions shown in Table 2 with the Ground Water Accounting Model. Please note that in Reaches II, 12, and 13, replacements to senior surface water rights in Colorado replaced 0% of the stream depletions caused by pumping affecting those reaches since there was not a call by any Colorado surface water right in those reaches on any of the days in March. Also note that in Reaches 14, 15, and 16, replacements to senior surface water rights in Colorado replaced 0% ofthe stream depletions caused by pumping affecting those reaches since there was not a call by any Colorado surface water right in those reaches on any of the days during March, The remaining depletions shown in Table 3 are the estimated stream depletions caused by irrigation pumping in excess of the pre-Compact entitlements remaining after replacements were made to senior surface water rights in Colorado. Table 3 also shows the estimated depletions to usable Stateline flow which were calculated using the assumptions in paragraph 5.B of the Resolution, and the replacements to Stateline flows which were made during the month. At 2400 hours on March 31, 2000,759.88 acre-feet of water was transferred to the Offset Account from LA WMA's X-Y/Graham Article II account. 500 acre-feet from this transfer was placed in the Kansas Storage Charge subaccount of the Offset Account. The remaining 259.88 acre-feet of the transfer was placed in the Stateline Return Flow subaccount ofthe Offset Account. The accounting spreadsheet for the Offset Account for the month of March is attached at Enclosure 1. Please contact me if you have any questions or require additional information. Sincerely, /.4 J IJ j;{ Steven J. Witte Division Engineer Colorado Division of Water Resources 1 Enclosure cc: Mark Rude John Draper Dale Book Hal Simpson Dennis Montgomery Bill Howland Aurelio Sisneros Randy Hayzlett David Brenn Peter Evans Thomas R. Pointon James G, Rogers I