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Dolores River Core Science Report
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Dolores River Core Science Report
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Last modified
1/27/2010 11:11:04 AM
Creation date
6/10/2008 1:10:16 PM
Metadata
Fields
Template:
Watershed Protection
Document ID
hr_0018a
Contract/PO #
PO 06-52
County
Montezuma
Dolores
San Miguel
Stream Name
Dolores River
Basin
San Juan/Dolores
Sub-Basin
Upper/Lower Dolores 14030002 & 3
Water Division
7
Title
Core Science Report for the Dolores River Dialogue
Date
7/1/2005
Prepared For
Nature Conservancy
Prepared By
Dolores River Dialogue
Watershed Pro - Doc Type
Planning Report
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Core Science Document <br />Introduction <br />The Dolores River Dialogue ("DRD or Dialogue") is amulti-stakeholder effort aimed at the <br />environment of the Dolores River downstream of McPhee Dam. The dialogue is considering a <br />range of creative alternatives. The practical actions that may result from this effort fall into three <br />categories: l) river channel work (maintenance, restoration, habitat improvement); 2) spill flow <br />management /enhancement; 3) base flow -pool management /enhancement; and/or 4) some <br />combination of these three strategies. Specific alternatives may include, but are not linuted tq a <br />review of the technical committee to instruct the Core Science Team to investigate the cost <br />benefits of; re-timing downstream releases, efficiency/infrastn~cture improvements, intern~ptible <br />supplies, new storage, new supplies, and stream habitat improvements. <br />To evaluate the various strategies and determine the preferred alternatives, the Dialogue has <br />convened a Core Science Team with technical expertise in several disciplines. <br />This team was established in early Febn~ary of this year (2005) to study and ultimately integrate <br />four primary areas of investigation (Appendix A): Native warm water fisheries, Cold water <br />fisheries, Geomorphology and Riparian Ecology with Hydrology through a community based <br />stewardship approach. Within the Dolores River Dialogue plan to proceed the following <br />provides the direction for the Core Science Team. <br />`PURPOSE" <br />"This Plan To Proceed outlines the three techj~~ica1 zrrzderstandir~gs required to get to the point <br />~~~here the Dolores River Dialogue Group can make a res~~onsible decision abo2rt what, if any, <br />action to take to imRJement its goals. First, a ~a~ater availability analvsis needs to be done. That <br />analysis needs to describe the amount of water expected to flow dol~~nstt~eam of McPhee <br />Reservoir through spills and base f7o~~~ releases. It also needs to describe the realistic <br />opRort~rnities to manage or enhance those f7o~~~s. Second, an analvsis of Potential do~~~nstrear~z <br />erwironments needs to be made. The science associated with different f7o~~~ Ratterns do~~~nstream <br />ofMcPhee Reservon• needs to be described. Thn•d, a correlation betweej~ those two efforts j~zeeds <br />to be made that ~~~ill illuminate the practical actions that could ~°esult from the effo~°ts of the DRD <br />Gro7rp. A matrix of doable alternatives ~~~ith identified consequences (scientific, institutional, <br />legal, political, and fiscal) ~~~ill he described. The Plan's finished Rroducts are desigs~~ed to be <br />thorough, credible, and realistic irz their analvsis of what is possible and ~~~hat h~rrdles differej~~t <br />actions may potentially face. " <br />The following tasks were included within the Plan to Proceed for the Core Science Team: <br />identify flow options for the objectives described above to correspond to the climate scenarios <br />(wet, normal, dry) described in the hydrology report; and be consistent with the available and <br />4 <br />
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