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• From transbasin supplies <br />- Approximately 28,300 ac-ft/yr, on average, from C-BT 1955-1973 <br />- 14,300 ac-ft/yr, on average, from Carter Lake 1974-1993 <br />- The drop in transbasin deliveries due to fewer C-BT units used under the ditch <br />over time <br />• Export to Ish Reservoir System <br />- Approximately 1,600 ac-ft/yr, on average 1991-2000 <br />35,000 <br />30,000 <br />25,000 <br />w <br />R <br />~ 20,000 <br />O <br />L <br />7 <br />A <br />s 15,000 <br />a <br />0 <br />10,000 <br />5,000 <br />o~~ o~~ o~ o~ o~ o~ o~ o~~ o~~ o~~ o~~ o~~ o~~ o~~ o~~ o~~ o~~ o~~ o~~ o~~ o~~ o~~ o~ o~ o~~ o~ o~ <br />~ ~ ~ ~ ~ ~ ~ <br />Date <br />Figure 2: Highland Ditch Diversion Records <br />2) Highland Ditch On-Ditch Reservoir System <br />Highland Reservoir Nos. 1, 2, and 3 are off-channel reservoirs located along the ditch that are <br />filled via the Highland Ditch. Water stored in the approximately 6,000 ac-ft total active storage <br />capacity in these lakes is distributed to shareholders. Highland Reservoir No. 2 is the largest of <br />the ditch company reservoirs and is used, along with Highland Reservoir Nos. 1 and 3 and <br />Highland Lake, to regulate water throughout the system. <br />Highland Reservoir No. 2 (Structure ID 0504032) <br />Highland Reservoir No. 2 was constructed in 1881 and is located on the north side of the ditch <br />approximately 9 miles down ditch. Releases are made from Highland Reservoir No. 2 directly <br />into the Highland Ditch system for use by shareholders or into Ish Reservoir (0404156) for use <br />by irrigators under the Boulder Larimer Ditch that own shares in the Highland Ditch Company. <br />Highland Ditch Operating Memorandum.doc 6 of 16 February 24, 2005 <br />