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<br />0/ ~. , <br />:, ~,:~,:-r <br /> <br />. <br /> <br /> <br />United States Department of the Interior <br /> <br />GEOLOGICAL SURVEY <br />BOX 25046 M.S. 415 <br />DENVER FEDERAL CENTER <br />DENVER, COLORADO 80225-0046 RIECEftWm <br />Water Resources Division <br />Colorado District <br /> <br />N;:::.L" REI'I.Y REFER T(): <br /> <br />SEP 26 '88 <br /> <br />September 16, 1988 <br /> <br />COLORADO WATER <br />CONSERVATION <br />BOARD <br /> <br />Mr. J. William McDonald, Director <br />Colorado Water Conservation Board <br />Department of ~atural Resources <br />721 State Centennial Building <br />1313 Sherman Street <br />Denver, Colorado 80203 <br /> <br />~A <br />&. <br />Dear M:. onald, <br /> <br />The U.S. Bureau of Reclamation and the U.S. Geological Survey have worked <br />closely on salinity related studies in the Colorado River basin. The <br />following reports represent the final product from two of the recent <br />cooperative efforts: <br /> <br />(1) Mueller, D.K., and Osen, L.L., 1988, Estimation of natural <br />dissolved solids discharge in the upper Colorado River basin, <br />Western United States: Water Resources Investigations Report <br />87-4069, and <br /> <br />(2) Mueller, D.K., and Liebermann, T.D., 1988, Extension of stream- <br />flow and dissolved solids records at selected sites in the <br />Colorado River basin, Arizona, California, Colorado, Nevada, <br />New Mexico, Utah, and Wyoming, 1940-83: Water Resources <br />Investigations Report 87-4203. <br /> <br />Al Jonez and I think a copy of each of these reports will be beneficial given <br />your role in m;magement and coordination of Colorado River salinity problems. <br />If you have any questions concerning the reports, please contact Dave Mueller <br />at (303)236-9404 (commercial) or 776-9404 (FTS). <br /> <br />Sincerely, <br /> <br />tt/~~<:l~;~~ <br /> <br />Richard O. Hawkinson <br />Associate District Chief <br /> <br />Enclosures (2) <br />ROH/mv <br /> <br />, <br /> <br />_:.r-- _~, "co.!....__, <br /> <br />::{ <br /> <br />''4 <br /> <br />;.l <br /> <br />;t <br /> <br />