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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 /> <br />Glenwood Springs 9/24/07 Lay out operating criteria in Phase I: This issue was further explained in the GBRT 10/3/07 letter. <br />Meeting 9/ 24/07 - Non - consumptive uses <br /> <br />See response below. <br />- Reservoirs <br />- Hydro - power rights <br /> <br />Glenwood Springs 9/24/07 Page 13, Paragraph B: This issue was further explained in the GBRT 10/3/07 letter. <br />Meeting 9/24/07 - Legal and political decision? <br /> <br />See response below. <br />- Not engineering decision <br /> <br />Glenwood Springs 9/24/07 Federal projects: This issue was further explained in the GBRT 10/3/07 letter. <br />Meeting 9/24/07 - Recognize or validate <br /> <br />See response below. <br />- Federal discretions <br /> <br />Glenwood Springs 9/24/07 How do you deal with conflict resolution when one basin gives one Hopefully by conducting the study in a transparent way with <br />Meeting 9/24/07 direction and another basin gives another? Conflict Resolution: <br />the input on confidence of the roundtable members we will <br />- Between Basins <br />build trust. <br />- Building trust <br />Modeling and/or data may cause mistrust/disagreements. <br /> <br />Glenwood Springs 9/24/07 Bureau of Reclamatio n Issues/Colorado Issues . The BOR will be BoR operations will be considered as appropriate. Currently <br />Meeting 9/24/07 a source of data. <br />the operating criteria of CRSP reservoirs and Lake Mead are <br />being re - assessed and new criteria will likely be adopted and <br />st <br />implemented after the 1 of the year. <br /> <br />Glenwood Springs 9/24/07 Recommendation to include a public outreach section in the See “Roundtable Participation in the Study” below. <br />Meeting 9/24/07 scope of work <br />Specifically, Task 4 was changed to include workshops for the <br />IBCC/ BRT’s, and additional consultations on individual basin’s <br />water supplies/uses. <br /> <br /> Mark Pifher and 9/30/07 Page 1 Water Use, Phase II of the study will consider not only Yes. The Scope of Work changed from “Categories of water <br />Michael McHugh existing uses but also projected future uses of water. Water use <br />use include …” to “ Categories of water use include beneficial <br />ca n be measured in terms of consumptive use, gross diversions <br />uses recognized under Col orado water law and other “non - <br />or total deliveries. Comment – Transmountain too? <br />water right” considerations such as reservoir operations, by - <br />pass flows, endangered species flows. etc. .” Also, e xisting <br />transmountain diversion systems are also included in the <br />CDSS model review (see Task 4.a.i) <br /> <br /> Mark Pifher and 9/30/07 Page 2 Water Availability = Physical Supply – Water Use Task 7 will be used to explore and hopefully reach agreement <br />Michael McHugh (includes downstream demands) , bullet #7 assumptions <br />on these assumptions. If agreement cannot be reach ed, we <br />regarding temperature and the impacts of temperature changes <br />can look at several different alterna tives . <br />on the timing and amount of consumptive uses and re turn flows <br />Comment – How will agreement be reached on the assumptions? <br /> <br /> Mark Pifher and 9/30/07 Page 4 d. Investigate Effects of Alternate Climate Change Phase I will look at existing demands under alternate <br />Mic hael McHugh Scenarios on Upper Colorado River Basin Hydrology <br />hydrology. The effect of climate change on lower basin <br />Comment – Need Lower too, drives demand. <br />demands may be looked at in Phase II, a decision which will <br />be made while scoping Phase II. <br />3 of 10 <br /> Page <br />