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<br />hble S SUlJIIlaryofAlternativE's - Big SalldyRherUnltSalin1tyStudy.lOycrntng
<br />
<br />ITEM
<br />
<br />3B
<br />
<br />]A
<br />
<br />An~~:~ Jn~~~:i~~~on .0<12 ~J
<br />Annual OMloR Cost - SM11110n .058 ~I
<br />
<br />Annual Cost Wildlife Hab1tat:
<br />Mitigation ~I - $1011111011
<br />Total Annual Cost-$Million
<br />
<br />,10
<br />
<br />Annual Salinity Reduction
<br />Benefits Y - SMIllion
<br />
<br />Increased Agricultural
<br />Benefits-SMillion
<br />
<br />,08
<br />,04
<br />
<br />5,88
<br />,75
<br />
<br />o
<br />
<br />,04
<br />,\6
<br />
<br />,14
<br />6.77
<br />
<br />2.42
<br />
<br />1j
<br />
<br />,10
<br />
<br />5.00
<br />
<br />7j
<br />
<br />,13
<br />
<br />,2/
<br />
<br />2.73
<br />
<br />. . . .
<br />. . . .
<br />~._._--
<br />, ' ,
<br />
<br />S..27
<br />
<br />Total Annual Benef1ts-
<br />$Milllon
<br />
<br />1j
<br />
<br />,"
<br />
<br />"
<br />,"
<br />
<br />,"
<br />,"
<br />
<br />,86
<br />,56
<br />
<br />,14
<br />3.56
<br />
<br />,14
<br />,75
<br />
<br />,05
<br />
<br />,47
<br />
<br />2.62
<br />
<br />2.62
<br />
<br />2.16
<br />
<br />,2/
<br />
<br />,2/
<br />
<br />,)4
<br />
<br />2.89
<br />
<br />2.89
<br />
<br />2.50
<br />
<br />1.03
<br />
<br />NetBenefits-$Mtllioll
<br />
<br />Sa1t Load Reduction
<br />(X 1,000 Tons)
<br />
<br />~ . ~ !J
<br />
<br />Salinity Reduction at
<br />Imperial Dam (mg/l)
<br />
<br />Annual Cost Per Ton of
<br />Sa1tReduction' ($)
<br />WethndS--Gain\+) or Loss(-).:
<br />(1,000 I\<:.}"-II tered Only :
<br />
<br />Mitigation--preserve and
<br />('ohance Wl!tlar,ds(l,OOO Ac):
<br />
<br />[ncreasedTerrestrial
<br />Habitat (adjacent to
<br />wetlancls)--( 1.000 Ac.
<br />
<br />Streamflow Increase/Decrease:
<br />(l,ODO Acft)
<br />
<br />7j
<br />
<br />,0/
<br />
<br />-1.50
<br />
<br />-.67
<br />
<br />1.14
<br />
<br />,90
<br />,60
<br />
<br />,09
<br />,"
<br />
<br />6
<br />
<br />2.20
<br />
<br />8
<br />NED
<br />
<br />9P?/
<br />
<br />10
<br />
<br />11
<br />
<br />2.34
<br />
<br />7.51
<br />
<br />7.51
<br />
<br />5.17
<br />
<br />124.9
<br />
<br />16.0
<br />
<br />18.80
<br />-2.77
<br />TN
<br />
<br />,86
<br />
<br />,42
<br />
<br />+26.2
<br />
<br />9GY
<br />
<br />. . . .
<br />. . . .
<br />-~--------
<br />
<br />1.69
<br />
<br />8l
<br />
<br />2.23
<br />
<br />,03
<br />
<br />"
<br />
<br />,03
<br />
<br />,86
<br />
<br />,43
<br />
<br />113.4
<br />
<br />+21.6
<br />
<br />',7
<br />
<br />52.9
<br />
<br />. . . . . .
<br />. . . . . .
<br />------~------_.
<br />. . . . . .
<br />
<br />42.5
<br />
<br />96.3
<br />
<br />7j
<br />
<br />"
<br />
<br />10.5
<br />
<br />52.9
<br />
<br />5,5
<br />
<br />5,5
<br />
<br />4,5
<br />
<br />,"
<br />
<br />,56
<br />
<br />o
<br />
<br />o
<br />
<br />,"
<br />
<br />7j
<br />
<br />59.30
<br />
<br />70.20 67.20
<br />-2.77 -2.77
<br />TN T.1l1
<br />
<br />33.00
<br />-2.77
<br />,-1lT
<br />
<br />34.40
<br />_.13
<br />y:-;Q
<br />
<br />..1~~~-=-Q.L~0~
<br />
<br />,31
<br />
<br />1.14
<br />
<br />48.0
<br />
<br />124.9
<br />
<br />\.83
<br />
<br />,63
<br />
<br />2.40
<br />
<br />o
<br />
<br />o
<br />r."
<br />
<br />,86
<br />
<br />,86
<br />
<br />,lB
<br />
<br />5,'
<br />
<br />33.00
<br />
<br />-1.20
<br />T1lj
<br />
<br />,36
<br />
<br />,lB
<br />
<br />',6
<br />
<br />+26.2
<br />
<br />1.15
<br />
<br />,47
<br />
<br />7.51
<br />
<br />1.01
<br />
<br />4.52
<br />
<br />o
<br />
<br />,18
<br />
<br />,86
<br />
<br />,43
<br />
<br />,43
<br />
<br />,09
<br />
<br />3.36
<br />
<br />2.1(;
<br />
<br />o
<br />
<br />,,.
<br />
<br />o
<br />
<br />o
<br />
<br />,09
<br />
<br />,43
<br />
<br />'"
<br />
<br />'"
<br />
<br />',8
<br />
<br />7.51
<br />
<br />4.55
<br />
<br />,7
<br />
<br />+4.2
<br />
<br />2.50
<br />
<br />1.01
<br />
<br />36
<br />
<br />5.61l
<br />
<br />2.21
<br />
<br />2.15
<br />
<br />1.03
<br />
<br />,JR
<br />
<br />42.9
<br />
<br />70.2
<br />
<br />12.3
<br />
<br />81.3
<br />
<br />16.0
<br />
<br />4,5
<br />
<br />,,'
<br />
<br />6,9
<br />
<br />9,
<br />
<br />14.70
<br />-2.77
<br />T.1l1
<br />
<br />34.40
<br />-.13
<br />DO
<br />
<br />46.90
<br />-.13
<br />DO
<br />
<br />14.20
<br />
<br />34.20
<br />
<br />+8.02
<br />-,,---
<br />
<br />-2.41
<br />T.1'<
<br />
<br />,86
<br />
<br />,lB
<br />
<br />,lB
<br />
<br />o
<br />
<br />,"
<br />
<br />,09
<br />
<br />,09
<br />
<br />o
<br />
<br />+7.8: +.7
<br />
<br />-13.4
<br />
<br />+20.6
<br />
<br />!I Good irrtgation water management practices.
<br />2/ Poor trrigation water management pract1ces.
<br />11 Annual cost wildlife mitigation inc1udrs aCQuistton, installation, operation, maintenance. and replacement costs.
<br />Y Annual salinity reduction benefits are basE!<! on $4\6,000 per mg/l change at Imperial Dam and $12,495 per mgl1 change at Green Rtver, Wyoming.
<br />I Sel'Page4-7 for details.
<br />51 Annual funds e~pended 1n the project are(l frm'l e~ \sting Conservat ton Programs. These tncl udt $25,500 ($12,200 Agricul tura I Conservation
<br />Program ASCS) ($13,300 Landowners) for installation of conserv(ltlon measures. Tpclwical assistance provided by the SCS annually ts $16,50D.
<br />
<br />~I Annual operation, maintenance, and rep]acment cost of the Eden Valley Irrigation and OfillMge District.
<br />71 Continued installation of conservation practices at the present level will maintain on-farm irrigation E'fflcienc1es at 35 percent.
<br />Continuatlonof,present level (JoI&lIonthe Irrigation system will maintain the 82 percent convl'yancl' pffici ellCY. With conveyance,
<br />and on-farm efficiencies rl'malning eS5entially the 5dllle In the future, no salinity reduction or agricultural benpflts are shown in the
<br />table. Itis recognized that should the ongoin9 conservation program fundi ngorOM&R:berl'duced,lrrigationefflclenciesmayreducl'
<br />a small amount which may result in a small increase of salt fr~ the proj~ct arl.'i!..
<br />
<br />12
<br />
<br />13
<br />EO
<br />
<br />53
<br />
<br />,42
<br />
<br />,10
<br />
<br />,"
<br />
<br />---,l~-=-_O_~
<br />
<br />2.79
<br />
<br />2.18
<br />
<br />"
<br />
<br />3.92
<br />
<br />,03
<br />
<br />,)4
<br />
<br />6.74
<br />
<br />".26
<br />
<br />3.'15 2.08
<br />
<br />64.2
<br />
<br />14
<br />
<br />8,'
<br />
<br />24.50 25.90
<br />-2.77 +4.01
<br />I.OT "T'S1)
<br />
<br />,86
<br />
<br />,43
<br />
<br />-".1
<br />
|