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<br />I <br />(tit <br /> <br />I <br /> <br />e <br /> <br />Memorandum <br />Oxley and Jarrett <br />August 19, 1993 <br />Page two <br /> <br />relationship to determine peak flows downstream of Lawson, all the way to Idaho Springs. <br />From the initiation of this project I have believed that this decision is key to moving <br />forward, and I still do. So please help me put that issue to bed. <br /> <br />SECOND THINGS SECOND <br /> <br />Now on to the next step. I like Bob's suggestion that we conduct studies <br />independently of one another and then share them. I've tried to develop a draft list of key <br />parameters for each of the four methodologies so we can agree from the outset on what <br />goes into each study and so we can agree on the data sources to be used in acquiring the <br />necessary information. The four lists are intended as drafts, so feel free to revise/edit as <br />appropriate. Once we've done our revising, I want to arrive at clear sets of rules and clear <br />road maps to guide each of our study efforts. To me the destination to which those rules <br />and road maps will lead us will be as follows: <br /> <br />1) <br /> <br />Peak flows (or quantitative parameters for their development) for a point at <br />the downstream limit of each of the three major subbasins upstream of <br />Lawson as well as two confluence points (5 total hydrologic points) <br /> <br />a) West Clear Creek just upstream of its confluence with Clear Creek <br />(subbasin point, 58 sq. mi) <br />b) Clear Creek just upstream of its confluence with West Clear Creek <br />(conflueoce point, 85 sq. mi) <br />c) Clear Creek just downstream of its confluence with South Clear Creek <br />(conjlueoce point, 78 sq. mi.) <br />d) South Clear Creek just upstream of its confluence with Clear Creek <br />(subbasin point, 30 sq. mi.) <br />e) Clear Creek just upstream of its confluence with South Clear Creek <br />(subbasin point, 48 sq. mi.) <br /> <br />2) Quantitative parameters for the development of peak flows at other points of <br />hydrologic interest (Le. Empire on West-Clear Creek or Silver Plume on the <br />mainstem of Clear Creek) <br /> <br />3) <br /> <br />A defensible set of relationships, not necessarily arithmetic, by which one <br />could by use our flows for each of the three subbasins as a starting point and <br />combine them to logically arrive at the value at Lawson (Le. a demonstration <br />of the reproducibility of our results through the calculation of overall basin <br />flow at Lawson from the individual subbasin flows; this is just the reverse of <br />what we will actually have done, so it should work if our methodology really <br />makes sense) <br /> <br />Memorandum <br />