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Last modified
1/26/2010 2:24:56 PM
Creation date
10/12/2006 1:58:40 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
8027
Description
Section D General Correspondence - Federal Agencies - US DOI-BOR - Region 4
State
CO
Basin
Statewide
Date
11/1/1971
Author
DOI-BOR
Title
Final Environmental Statement - Crystal Dam Reservoir and Powerplant - Curecanti Unit - Colorado River Storage Project
Water Supply Pro - Doc Type
Report/Study
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<br />fJ r .' ; q 'j <br />,ULU' <br /> <br /> <br />United States Department of the Interior <br /> <br />GEOLOGICAL SURVEY <br />WASHINGTON, D.C. 20242 <br /> <br />OI'FICE Of' THE DIRECTOR <br /> <br />September 24, 1971 <br /> <br />Memorandum <br /> <br />To: <br /> <br />Commissioner of Reclamation <br />Throu~lsistant Secretary--Mineral <br /> <br />Acting Director, Geological Survey <br /> <br />Resources f/.d,7;lfJ <br />Lew is M. He1lll <br /> <br />From: <br /> <br />Subject: Review.of July 30, 1971, Draft Environmental Statement <br />for the Crystal Dam, Curecanti Unit, Colorado River <br />Storage Project, Colorado <br /> <br />We have reviewed the subject draft environmental statement which <br />you transmitted to us for comment on August 20. The following con- <br />cerning geologic conditions is submitted for your use in compiling <br />your final environmental statement: <br /> <br />The description of both the surficial and bedrock geology is very <br />limited in the draft environmental statement. However, it appears <br />that any environmental problems that may result from geologic condi- <br />tions would be recognizable from pre-construction investigations and <br />from experience with the already operational Blue Mesa and Morrow <br />Point dams upstream from the proposed Crystal dam. A description of <br />the environmental impacts of the Blue Mesa and Morrow Point dams and <br />how the Crystal dam might add to the impacts perhaps ought to be included <br />in the final environmental statement. The value of the mineral resources <br />that will become inaccessible as a result of both the construction of the <br />Crystal dam and the Curecanti Unit should also be presented. <br /> <br /> <br />- y ~.~ 0A'--/ <br /> <br />Acting Direc:::~7 <br /> <br /> <br />26C'S <br />
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