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Response to Comments on the Colorado River Water Supply Availability Scope of Work - October 19, 2007 <br />Individual and/or Date of Comment Response <br />Organization Comment <br />sufficient time be allowed during the study for roundtable understanding of the CDSS which will form the basis of <br />mem bers and other water users to develop a thorough <br />phase one of the study. Review the CDSS manuals for <br />understanding and confidence in the study assumptions, data, <br />each sub - basin. These are available on the web <br />and water availability modeling. If understanding and acceptance <br />http://ibcc.state .co.us/Process/Needs/WaterSupplyAvailab <br />( <br />of the water availability model are not achieved, it will impede the <br />follow - on w ork needed to assure adequate water for Colorado. <br />ility/ <br />). Under “helpful links” you can access the Basin <br />Background Information References and the Basin Water <br />Resources Planning Model User's Manual for each sub - <br />basin included in the CDSS. <br />GBRT 10/3/07 Specific su ggestion a) Section 4b of the Scope of Work changed from a “four week <br />A minimum of eight weeks is needed at Task 4b for roundtable <br />period” to an ”eight week period” and under the Phase I <br />members to review summaries and model documentation. Four <br />Schedule, the completion month for Phase I changed from <br />weeks is inadequate for members to complete their reviews and <br />March 2009 to June 2009. <br />for roundtables to meet and adopt comments. <br />GBRT 10/3/07 Specific suggestion b) Task 4d in the scope of work was amended to include <br />The scope of work, timeline, study funding should provide <br />a dditional workshops with roundtable members . There will <br />flexibility to allow the consultant, as necessary, to loop back in an <br />also be c onsultations on individual basin’s water supply/uses. <br />iterative process to refine earlier tasks based upon the outcome of <br />Comments will be solicited from roundtable members on draft <br />later tasks. For example, it appears that the first output from the <br />water availability modeling will not be circulated for review by the products and incorporated into the study documents. <br />roundtables until completion of Task 9 which is at the end of the <br /> <br />study. However, based upon the review of this output by the <br />roundtables, it may be beneficial to have the option to go back <br />and refine data, modeling, as sumptions, or other technical <br />aspects of model operation addressed in earlier tasks, and them <br />to make further simulations of water availability before the Phase I <br />Report is completed. <br /> <br />GBRT 10/3/07 Specific suggestion c) Each Roundtable already has the ability to establish sub - <br />Conf idence and understanding of the model would be enhanced if <br />committees and it would be helpful so the study team can work <br />members of the consultant team could bring portions of the water <br />with a smaller committee rather than the full roundtable. <br />allocation model (sub basin or smaller) out to the West Slope as <br /> <br />they are being developed and in the early testing phases, and <br />demon strate them to water managers, the division engineer, <br />and/or interested roundtable members. These would be sit down <br />sessions at the computer during which existing operations of key <br />facilities in the basin would be simulated to see if the simulations <br />match the kind of operations that are observed by water <br />managers in the field. Each roundtable should be provided with <br />the opportunity to appoint its own roundtable technical advisory <br />committee which will be consulted with by the study management <br />team and the project consultants. <br />GBRT 10/3/07 2) The GBRT requests that a more precise ex planation of what is The definition of these terms will be refined in Task 3 – <br />meant by “water availability” and “water use” be included at the <br />preparation of Glossary of Terms. <br />top of page 2 of the scope of work. The scope of work should <br />6 of 10 <br /> Page <br />