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<br />.J . -1" <br />\hll .J.lo <br /> <br />/1!INlIlIlil'c lel'ds o.f Jloud plain regl/lalioll (el: and USDA) Annual upstream and <br />downstream flood d:Jmages will be cstir,]ateu ror 1985 and 2000 under the <br />alterJ;ativc :J,sumptions of ta) extr~jJojati(Jn of current trends in flood pJain <br />regulation b~yond 1975, and (b) the maximum practicable level or flood pbin <br />regulation. Some ('freds on economic i.lctivity of ilH:reilsC'd f100u plain rcgllbti'Oll <br />will also bc described. <br /> <br />o <br /> <br />f <br /> <br />Agency Responsible: Indicatcd in descriptio" above. <br /> <br />AUil'l/y 1'11'0.: Vollllllc/rie _-ldc'll/ac)' AI/alysis 011 Varialiolls. (April 1975). Volu- <br />mdric adequacy analYSe'S [O'S dc",eribcd in PI,o,,' 11. Activity Ol1e) will be. dcvciL)ped for the <br />alll'.rllJtive \V~t('.r use prOjections del iv(~d ill Activity One of this phase Jnd compared with <br />the volumetric adequacy ~1l1~I:ysis based all ct'ntrJI-cas~ assumptions. <br /> <br />Agency Responsible: \l'RC stafr.' <br /> <br />Ac/il'lly Three: fll/WICl Al/aI)'sis 01/ Varial;"l/s. (May 1975) The major economic, <br />SOL'iJl; ~lJ1d cnvironment:l] impacts of the vari:ltions from cClltral~ca:;c conditions will be <br />an~dyzcd. As it is 110t possible. to :l1l<.lly7.c all of the prim:.lTY and st.:l...~oIlJary imp:lcts of (:':I(:h <br />V<1ri~Hion, J. list of primary impact \'JJwblcs for c:lch v:ni:1tion from crlltr,:Il-c:.J~e conditions <br />has D(:\'11 St:l::TtCc\ lor aruJy~i). The: variables on which inlpact~ will be (:valtlJ.tt'd for each <br />variatioll from ccnlra]-(:;!se conditions :.Jrr id('ntified below tugether with the agency prill1~ri:y <br />n:spoJlsihle for each vari:1tion. Otll~r items sllch as IW:Jter qllillily will be cOllsiderl:cl in each <br />\':u;:lti.,;n to the extent rhat information is ;;v3ilablc. <br /> <br />VCi.ri(l/ioll from cCJI//'a! case <br /> <br />I. COJI gJsifiectioll-Jiqudactioll and <br />oil ,lial~ dcvcJoprncll t (USDI)_ <br /> <br />2. Incrcnscd agricultural c:xports <br />(USDA with USDlj <br /> <br />., <br /> <br />3. P"tterlls or ];]nc!use for agriculture <br />(USDA) <br /> <br />. <br /> <br />..-tl1aIFsis l'ilriaN"s <br /> <br />W"ttr slIpply <br />Synthetic natural gas output <br />Regional (l11plIJymcnt <br />La Ild USt <br />Fish and wildlire habitat <br /> <br />\V~tcr supply <br />Agriculture production <br />Agriculture employment and income <br />Land use <br />Soil loss <br />\Vet soil conversion <br />Fisll and wild.life habitat <br /> <br />WOltcr supply <br />Cost or crop production <br />SojJ lc'''s <br />W~l soil c.onvers.ion <br />FJSh and wild!ifc habitat <br /> <br />19 <br />