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<br /> <br />Chatfield Reservoir Reallocation Study <br />Foster Wheeler Environmental Corporation <br />Lakewood, CO October 17, 2001 <br /> <br />Attendees <br />Larry Lang - CWCB <br />Joe Busto - CWCB <br />Ted Kowalksi - CWCB <br />Rick Minor - Corps (Omaha) <br />Van V. Shipley - Corps (Denver) <br />John Hendrick - Centennial W & S District <br />Gray Dendril- Foster Wheeler Environmental <br /> <br />Kent Wiley - State Parks, Chatfield <br />Rick McLoud - Centennial W & S District <br />Fred Rios - Corps (Tri-Lakes) <br />George Cotton - Simons & Associates <br />Bob Simons - Simons & Associates <br />Tim Steele - TDS Consulting, Chatfield Water <br />Authority <br /> <br />The next Chatfield Reservoir Reallocation Meeting is scheduled for February <br />Wheeler Environmental Corporation. 143 Union Boulevard, Suite 1010, Lakewood. <br /> <br />, 2002 at Foster <br /> <br />Introductions <br />Recreation interests met to discuss issues on September 11 th at the same time the water user interests met <br />at Denver Water. For the general contract, there much concern regarding the water storage pattern study. <br />The water supply study and recreation study will both interface with the general contract and will need to <br />be completed in the next two to three months. The informational website, project schedule, state and <br />federal funding were the main topics for this meeting. <br /> <br />Project Backl!.round (Robert Simons, Simons and Associates - contractor) <br />As the contractor we have been working on project since January 2000. when the contract between the <br />Corps and CWCB was executed. Basically Simons has done a lot of the background work to be used in <br />the Environmental Impact Statement. We have developed a basic data and hydrologic model from <br />Chatfield to the state line. We have obtained the Denver reach of the South Platte River up to Chatfield <br />from the UDFCD. We have Gotten cross sections put together and a model is up and running and given <br />to the Corps for their review. We have assembled a hydrologic database of stream flow at key gauges that <br />is 1940 to present and we have filled in the gaps. We have done analysis of local runoff and trends of <br />urbanization. We bring a database affected by urbanization and have consistent set of current hydrology <br />and operational model of the reservoir system. This is not complete until we incorporate the water use <br />and demand study. Hydrology and operational models are close to useable and will help answer many <br />questions. <br /> <br />Hvdrolol!.V (George Cotton, Earth Surface systems - subcontractor) <br />We have used existing rainfall runoff and concurrent rainfalls and temperatures to see if the model is <br />driven by streamflow. We have accepted the Corps models as valid for inflow hydrographs, using 100- <br />year flood hydrographs, accepting original Corps design. HEC 5 is the model used for analysis. Foster <br />Wheeler will get more into water quality issues once we can give them inputs for the models. Technical <br />memorandum to the Corps has been transmitted and waiting for comments. Reservoir space has not <br />been determined. Routing models are developed if there will be space. <br /> <br />Impact Assessment (Gary Dendril-Foster Wheeler Environmental Corp. - subcontractor) <br />Foster Wheeler has built basic building blocks for the Environmental Impact Statement that we will need. <br />Wetlands, fisheries, wildlife, resources have been inventoried and draft reports prepared. There will be <br />