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<br />. <br /> <br />Attachment 2 to Agenda Item 8., CWCB Memo 1/16/07 <br />Kansas \' Colorado, Arkansas Basin Studies and Activities <br />IPrepared by Di\'. of 'Vater Resources and Colorado State Vniv., Jan 12,20071 <br /> <br />The infonllation to be presented during the eWCB meeling and summarized here is <br />intended to address the progress of activities resulting from the Board's March I6-1 , <br />2004 authorization to expend up to $750,000 from the litigation fund. This action w. sin <br />response to the Attomey General's request that funds be used to defend and protect <br />Colorado's interstate allocations of water in the Arkansas River by initiating studies nd <br />activities to implement the findings in the Fourth Report (October, 2003) of Special <br />Master Arthur Littleworth. The projects that were initiated based on the Board's <br />authorization are listed here. <br /> <br />. <br /> <br />I. Design, installation, and operation of weighing lysimeters at the Colorado Sta e <br />University (CSU) Agricultural Experiment Station at Rocky Ford, Colorado. <br />(5300,000) <br />2. Enhancement of the Colorado Agricultural Meteorological (CoAgMet) Electr IllC <br />Weather Station Network in the Lower Arkansas River Basin. ($ I 30,000) <br />3. Monitoring of ilTigation amount, timing and crop yield in the Lower Arkansa <br />River Basin. (5220,000) <br />4. Review of the Hydrologic-Institutional (H-I) Model, after changes have been llade <br />by the State Engineer's Office, by Hydrosphere Resource Consultants and He ton <br />& Williamsen. ($100,000) <br /> <br />The execution of these projects was initiated by the completion of interagency <br />agreements between the CWCB and CSU for the first three projects listed above and by <br />the completion of purchase orders between the CWCB, Hydrosphere Resource <br />Consultants, and Helton & Williamsen for the last project listed. <br /> <br />A brief summary of the objectives and accomplishments for each project is provided in <br />the following paragraphs. A common element of the project descriptions for the first <br />three projects that will be noted here and not repeated in the individual project <br />descriptions is that CSU hired one technician who was stationed at the Arkansas Val ey <br />Research Center in Rocky Ford to perfonn tasks in support of the first three projects <br />I isted above. <br /> <br />Lysimeter Design, Installation, and Operation <br /> <br />. <br /> <br />The objective of this project is to design, construct and begin operation of two large <br />Iysimcters at the Arkansas Valley Research Center at Rocky Ford. One lysimeter (3 <br />meters x 3 meters surface area) wi II be larger than the other (1.5 meters x 1.5 meters <br />surface area). The Iysimeters will be used to accurately measure evapotranspiration fa <br />reference crop and of production crops under a variety of field conditions. The small r <br />Iysimeter will serve as a reference lysimeter which will always have an alfalfa refere ce <br />crop grown on it and its surrounding field while the larger Iysimeter will initially be lsed <br />to validate predictions for an alfalfa reference crop made using the Penman-Monteitl <br />