|
<br />4
<br />
<br />CRBSCP and CRWQIP
<br />
<br />"
<br />
<br />"
<br />
<br />ponds, and other necessary 8ssociated works could be
<br />included. An alternative deep-well injection plan is also
<br />.... being cOJUlidered, which appears to be more cost effec-
<br />Q)' live than the evaporation pond plan.
<br />
<br />.,t:.
<br />CO
<br />
<br />,
<br />
<br />i
<br />':~
<br />'1
<br />.j
<br />i
<br />~
<br />
<br />.,
<br />:1
<br />1
<br />!
<br />.1
<br />.,
<br />.1
<br />:'i
<br />
<br />Grand Valley Unil, - This Colorado unil will consis"
<br />01 measures and works to reduce seepage of irrigation
<br />water {rom canals and laterals, limit excess water appli-
<br />cations to irrigated lands, and improve on(snn practices.
<br />The unit is being developed in two stages to allow the
<br />Bureau of Reclamation to begin construction in a por-
<br />tion of the valley where plans and designs are com~
<br />plete, where suCficienl data are available to assess im-
<br />pacts of initial development while investigations and
<br />planning continue on the rest of the lUlit. and where
<br />environmental impacts would not he significant. On
<br />Stage 1, 6,8 miles of the Governmenl Highline Canal
<br />have been concrete lined and cross-drainage facilities
<br />have been compleled. Conslruclion begsn in 1981 10
<br />consolidate 13 open channel laterals that service the area
<br />under the newly lined portion of the Government
<br />Highline Canal into 12 pipe lateral& A moSB and debris
<br />removal structure ha.~ been placed at the beginning of
<br />the canal lining. Construction of Stage I was essentiaJl}'
<br />complete at the beginning of the 1983 irrigation season.
<br />Stage 2 investigations began in 1981 and are continuing.
<br />A draft supplement to lhe March 1980 Definite Plan
<br />Report was prepared in June 1983. A separate brochure
<br />on the Grand Valley Unit is avallahle (rom the Bu['eau
<br />of Reclamation.
<br />
<br />~
<br />
<br />.,
<br />:01
<br />)
<br />"OJ
<br />"~oi
<br />'0)
<br />::"1
<br />~f
<br />
<br />[AU VeSOS Wmh Uni~ - This Nevada unit h.. under.
<br />gone a reConnulation hecau8e of changing ground-water
<br />conditions.. The major new finding was thllt the salt
<br />loading ,was induced by the disposal of wastewater into
<br />wasteways or basins which leach salt from the underlying
<br />Bllline geologic deposits. A recommended solution is to
<br />channel the wastewater around the f.I.B1ine deposits. which
<br />would reduce the leaching and salt loading, A 3,S.mile
<br />bypass pipeline in a verification program is expected to
<br />be buill in fiscal year 1984,
<br />
<br />.j
<br />"
<br />'i
<br />j
<br />j
<br />,
<br />I
<br />
<br />Cryslal Geyser Unil, - This Utah unit would be involv,
<br />ed in the collecting and disposing of 88line gefser dis-
<br />charges. Additional studies have indicated that construc-
<br />tion of this unit would not be cost effective at this time,
<br />and further studies have been presently terminated.
<br />
<br />COWRADO RIVER WATER QUAUTY
<br />IMPROVEMENT PROGRAM
<br />
<br />Further studies and research have been authorized on
<br />other salinity control units for the Colorado River BaBin:
<br />
<br />. Palo Verde Irrigation D~crict Unit in Riverside
<br />County. California,
<br />
<br />. Lower Virgin River Unit in Oark and Mohave
<br />Counties of Nevada and Arizona.
<br />. LaVerkin Springs Unil in Washington Counly,
<br />Utah,
<br />. Uinta Bcuin Unit in Duchesne and Uintah Counties,
<br />Ulah,
<br />. Price-San Rafael Riwr Unil. and
<br />. Dirty Devil River Unit~ which are in Emery, Car~
<br />bon, W sple, and Garfield Counti"", Utah,
<br />. McElmo Creek Unit in San Juan and Montezuma
<br />Counties of Ulah and Colorado,
<br />. Glenwood.Douero Springs Unil in Garfield County,
<br />Colorado,
<br />. Lower Gunnison Basin Unit in Delta, Montrose,
<br />and Ouray Counties, Colorado.
<br />. Big Sandy River Unit in Sweetwater County,
<br />Wyoming.
<br />. Meeker Dome Unil in Rio Blanco County. Colo.
<br />rado.
<br />
<br />The Meeker Dome Unit was placed on the investigations
<br />program al lhe request of the State of Colorado, The
<br />Saline Waler Use and DiBpo.al Oppnrlunilies Unil. a
<br />multi state unit, has also evolved as a possible means of
<br />using 88Jine water in industry. and {Ol" reducing the
<br />salinity concentrations at Imperial Dam.
<br />
<br />Since 1972, intensified feasibiJity invesiigations have
<br />been underway on divisions Ol" units of the Colorado
<br />River Water Quality Impl"ovement Program. These
<br />investigations ""ill develop information for construction
<br />of additional units to help control those areas that are
<br />contributing \0 th.e ~inity of the Colorado River.
<br />NonstructurBI studies have been made to reduce the
<br />salinity contributed to the river through improved
<br />irrigation management practices and ao"Irrigation
<br />.Management Services (IMS) irrigation system improve~
<br />menl program, Because of lack of support by the irri,
<br />gators., the IMS program has been terminated.
<br />
<br />Significant modification may be found in the project
<br />plan during the preconstruction stage of investigations or
<br />during the preparation of final designs of project fea.
<br />tures.
<br />
<br />Uinta Ba5i.n Unit. - Studies have identified certain
<br />reaches of canals and laterals for lining to reduce salt
<br />loading where cost effective.
<br />
<br />McElmo Creek Unil, - Methods for removing salt
<br />include combining and Ii":ing some canals, and lining
<br />sections of other canals where cost effective.
<br />
<br />Glenwood.Douero Springs Unit, - Salt removal plam
<br />include collecting the saline water from both Glenwood
<br />and Dotscro Springs and disposing this saline water in an
<br />
|