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with the exception of surface water/ground water <br />model interaction tasks in the surface water and <br />ground water contracts. <br />The surface water contract is close to completion; <br />the only tasks remaining include updating <br />modeling and documentati on with revised unit <br />response functions, which will be obtained from <br />the final ground water model. <br />The ground water contract is complete, except for <br />final model calibration and surface water <br />interaction tasks. Peer review meetings including <br />the State and representatives from Rio Grande <br />Basin water users are being held approximately <br />once a month. Numerous enhancements to the <br />ground water model have come out of these <br />CDSS Coverage <br />meetings, and completion of the model is expected <br />in 2004. <br />Portions of the CDSS database cover the entire state. <br />Currently there are complete systems, including data, <br />In 2003, the irrigated acreage analysis for 1998 <br />tools and models, for the Colorado (green) and Rio <br />was updated with new information for assigning <br />Grande (blue) basins. Wo rk continues on the South <br />wells to irrigated lands. As part of the CDSS plan <br />Platte basin (red) system. Long range plans of both <br />for irrigated acreage assessments every five years, <br />the CWCB and DWR are to eventually complete a <br />an update is to be comp leted for the Rio Grande <br />DSS system for the entire state (Republican River <br />Basin in 2004. This update will be performed for <br />basin (gray), and the Arkansas River basin (white)). <br />2002 irrigated acreage data, rather than 2003 (the <br />next five-year increment), because of the drought <br />2003 CDSS Legislative Actions, Decision <br />in 2002 and the opportunity it provides to look at <br />Items, and Funding <br />effects of a very dry year on irrigated acreage. <br />No new funding or decision items were requested in <br />Colorado River Basin <br />FY 2004. However, funding was requested in the FY <br />The Gunnison River basin water resource planning <br />2005 Construction Fund Bill. This request is for $2.5 <br />model update was completed and the dataset and <br />million to fund year three of the SPDSS project. The <br />modeling documentation are available on the Web. <br />year three funds will be used to complete the data <br />The Upper Gunnison Water Conservation Board is <br />collection phase for SPDSS. <br />continuing to use the CDSS consumptive use <br />2003 Accomplishments <br />model, StateCU, for it’s 60,000 acre-foot <br />subordination agreement analysis and reporting <br />Statewide <br />requirements. <br />This past year’s emphasis has been on completing <br />the groundwater modeling effort in the Rio Grande <br />The San Juan River basin water resource planning <br />basin and the collecting, co mpiling and analysis of <br />model continues to be used in conjunction with the <br />data collected under SPDSS. Work associated with <br />USBR’s RiverWare model to help better <br />the original CRDSS effo rt centered around the <br />understand the impacts of the re-operation of <br />continuation of the ongoing maintenance and <br />Navajo Reservoir. <br />operation of this effort, which includes modeling <br />A detailed scope of work was developed for <br />updates, GIS mapping, and refinement of modeling <br />updating the Colorado River basin water resource <br />tools. <br />planning model. The scope calls for the <br />Rio Grande Basin <br />incorporation of the same modeling enhancements <br />Development on RGDSS components is complete, <br />that were incorporated into the Gunnison River <br />