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<br />
<br />United States Department of the Interior
<br />
<br />GEOLOGICAL SURVEY
<br />BOX 25046 M,S, 4] 5
<br />DENVER FEDERAL CENTER
<br />DENVER, COLORADO 80225,0046
<br />
<br />RECEIVED
<br />
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<br />
<br />SEP 2 (; '88
<br />
<br />Water Resources Division
<br />Colorado District
<br />
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<br />
<br />September 16, 1988
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<br />Mr. Gene Jencsok, Chief
<br />Hydrologic and Interstate Stream Investigation Section
<br />Department of Natural Resources
<br />721 State Centennial Building
<br />1313 Sherman Street
<br />Denver, Colorado 80203
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<br />Dear Mr. JeTIcsok,
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<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 />(I) 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 management 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 />;tEl.
<br />
<br />Richard O. Hawkinson
<br />Associate District Chief
<br />
<br />Enclosures (2)
<br />ROH/mv
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