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INTRODUCTION <br />This report is an update to the Tipton and Kalmbach, Inc. "Historic Use and Consumptive Use of <br />the Home Ditch" prepared for the Dolores Water Conservancy District in October 1986, as <br />directed by the Colorado Division of Water Resources. <br />This is not a replacement for the 1986 report (hereafter referred to as the T&K 1986 Report), but <br />should be viewed as an addendum, updating use data for the purpose of determining current <br />water rights for the Home Ditch. Therefore the same organization as the original report shall be <br />used, and data from the original report merged into this document, without any review or <br />analysis of the data or conclusions drawn in the original report:. <br />Four items were included in the original investigation and the T&K 1986 report, but only one <br />item isrevised/updated by this report: <br />#3. Estimating the crop imgation requirements, imgation efficiency, and historic <br />consumptive use for 1971 through 1984. <br />This item is revised to include these requirements and historic consumptive use for 1971 through <br />2003. <br />DISCRIPTION OF HOME DITCH: <br />No change from T&K 1986 report except: <br />- a current, corrected USGS Map showing the location of the ditch, diversion, and <br />irrigated land is provided as Enclosure A to Attachment 3 (this document). <br />- in May 2004, a large portion of the Home Ditch was improved by installing pipe in the <br />ditch, to reduce evaporation and infiltration losses. A much smaller section of the Home Ditch <br />had been encased in a culvert under the new entry to Line Catnp in 2001. <br />4 <br />