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I I I I I I I I I I I I I I I I I I I -::::> .-) w o ~ ~ Mr, David L. Pope and Ms. Mary Louise Clay November 16, 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 100% of the stream depletions caused by pumping affecting those reaches since there was a call by a Colorado surface water right in those reaches on all of the days in September. Also note that in Reaches 14, IS, and 16, replacements to senior surface water rights in Colorado replaced 10% of the stream depletions caused by pumping affecting those reaches since (here was a call by a Colorado surface water right in those reaches on 3 days in September. 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 (0 usable Stateline flow which were calculated using the assumptions in paragraph 5.B of the Resolution, and the replacements to S(ateline flows which were made during the month. A delivery of water to the Offset Account was initiated during the month of July, 2000 by LA WMA using consumptive use credits from (heir ownership in the Highland Canal. This delivery netted 184. 14 acre-feet of fully consumable water into (he Offset Account during September, 2000. As of September 30, 2000, there were 631.11 acre-feet being stored in the offset account. Please contact me if you have any questions or require additional information. Sincerely, :/. < 4/ld~ Steven 1. Witte Division Engineer Colorado Division of Water Resources cc: Mark Rude John Draper Dale Book Hal Simpson Dennis Montgomery Don Taylor Aurelio Sisneros Randy Hayzlett David Brenn Steve Miller Thomas R. Pointon James G. Rogers