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<br />ConsidNing tht" tllilJ"r imp;H"t that man,made n-s-
<br />er..()ir~ han- (m thl:' nnrmal 11'1\\' ~eq\lt-nrt-~ of aITl."ctt-d
<br />,..Irpam;.;, it wa" nt'(.l'.....ar~' t" include "I'ITH' pru{"('(-!ure;;.
<br />in Iht' \\'(ller .-\{"('nlJl1tin~ :'~''''I;'m that a('('ounl!:d ll,r
<br />H';.;l'rVOlr eflh.t,.. due to Tl'di...lrihulion of l1U\\S from
<br />rbt'r\"(Jir ,'pNatl1Jl1. :-;llln'lht'H' are lit ('rally Ihou;;.and...
<br />Ilf m;tn-l1ladl'lakl'~ in lht- \li","'luri Hl\"t'r Im...in, it wa....
<br />nt'(,I"...,.ar~'lrJ limit the number f,f re"t'r\"oir~ ...fudit-'d in
<br />df'tail within till' \\'att-r ..kcounling ~y...ft'm. In the
<br />linal "eIN'ti')n pr(On'''~, rt'...pr\'()ir" wilh a normal nl-
<br />pllcit.\, of ~1)1I,11l!(I ilITt'.ft'l't or gn-i1It'r wt'rf' "elt'l'INl.
<br />Exct'ptioll... \\t're HE'h>:f'1l {lam in \11!lltana. Ralhbun
<br />Dam in Iowa. Kt.ybrrlt' Dam in \\"voming and Big Bend
<br />Dam in South Ilakuta, Thbt' !,rrur wt'rt'. in tilt' linal
<br />anal.ni.... l'xrludt.d fnlm lht' llMjnr rt'''t'rWtlr group ht'-
<br />('au"t- tneir depldHJIl t,lft,l.t.... wert' minima!lJr bt-'('lIu"e
<br />"I Illli4lll:' Opt-riltillnal t'OIl...UII-T111iun". Twu t.vPp,; of
<br />rt'''ernllr operatiunal prngmm" Wf'rt. Ibt'd lllr major
<br />H'H't\'(Jir...: tht. C"rp" of Engim'er... \Ii;;.~(nlri Hi\t'r
<br />l1lllln ,..tel1l rt:,..er\'\,ir ('omputt-r pro~rilm for lht' "ix
<br />\orp." 01 EngllH't'T" r;-H'r\"ir,.. nn Iht' \ll,.....ollTl Hi\t'r.
<br />and a ~t'rwralilt'd re...t't\"'lr "Ill'ratlng- prlJgrHm WTltlt'1l
<br />by lht' BUrt'1ll1 of Ht'dl1nHllion f"r fhe otht.r 19 major
<br />re~l:'noir", ~"lllt'- ri\t'r ~y,..t~'m" Within tl1l:' \tl:;~"lIri
<br />Hi\t'r ha,..in art' ('lJntr"llt.d h.v inTt'rnalionallrf-l-lty. Ill'
<br />ter...I,H(' compact, l>r ('''url decret'. \\'hilt' ,..ig"niliranl.
<br />tht'\, rt']He~t'nllt-,.."than hall of the tot,]1 n'g-iofl I Fi~"llre
<br />101. For tht- largt' rt'maininl: area, in partlculnr with
<br />re"'pt'('t to! lht- \I1"',""llri Hivt'r il"'l,IL !ht'rt' I'" growin~
<br />illlt'H',,1 in flnd l'lIlll'NIl ahout whal Ihe IUlllrt. mny
<br />hring.
<br />
<br />iirulllld \\'aler l".-e Tht. purpu,..t' uf lht' groulld
<br />Wil\t'r ...Iut!it'" Wll'" II' quantIfy dt'plt'tIIJll:< III ,..1 rel1III Ilnw
<br />("(lu...f'd Ii.\ gWlInrl waIN pllll1pag't'. B('eml,..e 4uantilying
<br />grr'umlwalt'r dt'plt,tl"n,..t" ~Irt'amllt,\\ ll,r all ,;trt'alll...
<br />throughoul th(. \Il,.."ollri Hi\t'r ha:<in would haw I)('en
<br />ht:\ond tht' ...('IJPl' of ,;tud~ ,md 1)t'Cilll"f' IOldl ,..trt',lm,
<br />111lw dt'plt'lilln,; dllt' In ground watt'r pump;l;::\-' in many
<br />part,.. oj lht' IJ;l~in ,itt' m"lglllficant. dl'tailt'd depldion
<br />illlal\....i... Wil,.. Jimill'd II' 1\\'0 ,;uhll1l"ln" 01 "1;::nifit'lU1t
<br />grO!u'nd wall'r Il~,', Tht,,,p \\"Prl- lilt' I'lalli' Hl\t'r ~\lh-
<br />11,1"'111 and lht, I\ao,..a" Hi\t'r "'uhh,l:<rn.
<br />
<br />Tht' m'lSt ~ignili('ant (h~tllH"t H'n t 'It he gruund \A IIh-r
<br />cll'pletinn i:< lilt- liltll' d('la~ t'llt.t't on ,..tH':lmll,," and
<br />Iht' cUllllllatl\l' elfert ,>1 prf'\illll~ pUmpIng. TIll' II;'('h.
<br />niqlle "plt'(.1t'd lor iln;.IYling :<t rl',lmtlllw dt'plt,t ion" due
<br />tll grllllnd \\at,'r jlllmpagt' wa~ tht, ,-;ilri'llln (1('IIIt'linn
<br />Factor l~nFlll'l"hmqtlt'. Thp ~IH>iHn Deplelion Faclor
<br />mt'lhud WIl" ,'hll",'n lwrall:<t' 01 il" u"t' of a partIal
<br />Iran....ml.~:<i\.it~. l:"rid ollht' ;14111ler with intt'rpolali"ll
<br />IWI wet'n grid,... II ~ ahility to ,ln31~'lt' grllllp... 01 wdl,..
<br />in.~l('ad llf annlyzing t'aeh wf'1l ~t'par;l1t'ly, and tht- t'um-
<br />parahiblY 0[11,.. rp"ull.~ 10 flth...r mnrt' dt'laill'd Illt'th-
<br />"d~.
<br />
<br />TI1i' ~DF It'l'hlllqut' i~ applit'd "11 11 ~IH'am-a4uifl'r
<br />~\',..tt'm wlwrt' lht' "trt:arn ami 1I4uih'r art' hydraulil'all~'
<br />,'r>nnt>rkd.. Tht' lerhniqut' i:< ll~ed to dt'lt'rmillt' tht'
<br />..!'fe("( on ~trt'all1I1ow nf pumping watN Ir/'m tht' 1l4ui.
<br />Jt-r. Tht' It'dllliqm' nunH'ricall~ ...(,h..~ tht, llll,..tt'iHh.
<br />
<br />\.;
<br />
<br />ground wakr ('qualion to derive a factor called the
<br />"lrt'ilm dt'plt-lion fancrT (,..dfl which l'haraclerizl's the
<br />aquilt't properli.." 01 and Ihl' di,;tilll('(' from Ihe !'Iream
<br />to the local ion of a well. TIll' !'Ir{'am d('pletion fa.("tor~
<br />"btaillt'd ill \'(lrillu... local ion" in tht, ~tream'il4uifer
<br />~nlem are regislert'd (Jnll) 11 mnp and divided into
<br />~~'veral hand,.:. of difff"renl :<dr rang-b. Tht- awragt'
<br />\'ahw 01 Iht. :;d! hand. "rhedule 01 pumping" and
<br />amuunt~ 1)1 \\alt'r p\Jmpt'd an-Iht'n entf'reci inlO II com,
<br />pulN program to dt'\{'rmine the ,;trt'am depletion. To
<br />illu,.ITill(- tht' ("onn.pt..... ri'fl'rring' In Figure J 1. water
<br />pumped lrnm lh{> we]],.. i" lit-rived partly lrom the
<br />~trl'am. a~ lIldit'att.d 1)\ Ihp "t('('p{-Iwd \\aler tahle near
<br />tht' ~trt'am and partl~ !rOlll the aquifer. a" indic3lt'd
<br />h\ lht- In\\t"rt'd \\'<ltt-r'lahlt- near tht' \\"(-11.
<br />
<br />Tht' lran"llli,.."i\'il~' "I an aquilt'r i" a llH'fbUrf' (If the
<br />t'apahdil.v ,jll h{- iJ4uifer tll tran."mil watt'r horizontally
<br />undN ,..peCllit:d {'onditloll", A map of the di"tribulion
<br />o! linp,.:. I't' t'qll,,1I tral1:<mi~"ivity I Figurt' I'll ili requirt'd
<br />to l'1dl'ulatl' lhe t'ffl'{'b o! pUlIlpmJ: wt'll" on the flow
<br />,,\'...It'1I1 Tnl11...mi"SI\ll\ i,; normall\ dt'lt-rmim'd bv
<br />i*4uill.r It>~ling u"ing r~{'rrrd" (II pU~IJll'd wells, Z()lle~
<br />olt'q\iallra.ll"llli",sl\'it~., T. art' illu,-;Iratt'd In Fi~lre I:!,
<br />HIl\\ P\ ('r,.l moTt' m't'urat.. Ill;-\P nf I ran"mi,.."ivity "how-
<br />111~ ;l\.tual i"o!!rllm." i" n''luirt'd for ealculiltion.... If dw
<br />~urrf>undlng: matl.rial dpt.... nllt tran"mit wlllt'r rt'adil~'.
<br />l(~ lran,.:.mi,..,;ivit\, l1lav Ill' rt'g:ardt'd;1" zero. which JO-
<br />dit';lIt,,.. lhllt will~'r dll~:; lIot now horizontallv,
<br />
<br />L>,..ing Ihe :-InF tt't'hni411l'. an imagillllr~. ~rid nt'l-
<br />work l>o dr:l\\n U\N a tran....mi""ivity map. Figure 1;1-
<br />B:- a,..,.:.ignin~ l"l'al value" 01 t rillbml,;:;i\'ity to each ele-
<br />ment of lilt' grid. lilt' di~trihlllil'n ,.1 lrlln":'l11i",..i\'Lty is
<br />appr')Xilllllll'd. I_ocal nllul''' uf Ihe aquifer ,;lOragl'
<br />('haral"ll'ri"IIC" 1Tla~. ;11,.." ht' (l..."igllec! III t'aeh t'll;'lllt'ut
<br />I'llh(. j::rid, For I hi... ..;tuuy. ,..t"ragl' vahu',,:, "ere a"sumt'd
<br />III ht' ullllorrn ll\{-r Iht. aqulft'r g-rid.
<br />
<br />In llrdt'r 10 "Ibt-r\t' tht, n'~Jllltbt- nf tnfo ,;lrt'am to
<br />pumpIng. illl;1gilwr~ \\t'lI~ an' "imulaled at varioll"di;;.,
<br />t,met;',.. from till: ,;trt'l11tl. Through the u,..., of a ;';DF
<br />computer program, lnl' Imaginary well" art> pumped
<br />,..(-p"rat{'I~, and I he rt',;lIhing' t'nt'('l~ Oil the ,..tream art'
<br />t'...limalt'd and pltlllt.d.
<br />
<br />\\"dl... can ohwin tht.ir pumped walt'r t'itllf'r from
<br />lht' ,~l ream or aqUlIf'r or.1 t'omhinalion of hoth, \\'dJ,.
<br />located do,..,. 10 lilt' "lrt'illTlIt'nd t" deplt'te IhE' ,.lream
<br />rapidh. \\ ht'rt',1" wt'11-- locatt'd ""Illt' di;;.l,ITI('I! landward
<br />Irol1llht- ...tn'am It'nd tu nepkll' the :<trt'ilm at a much
<br />..;lo\\t'r Tiltt'. Ih'lailt'o t'xplanallon:< oltht> :-,DF Ift"h.
<br />mqut' and a~~Olclalt.d ("<'mputt'r pro,gmm:; ftrt' included
<br />intht, l{'chIllC<t1 paper pr('pan-d hy tht' (;round \Vatt'r
<br />\\"ork {;rnup,
<br />
<br />A.i.'rld,/rurallrar.'r l>". - Tht. primary tlbk,.:. oilhi~
<br />work group wt'rt' Idt'nlificalll'll of irrigatt'd land...
<br />Ihn'llghnut the \11...~I,uri Hi\"er ba"in and .."timation
<br />,-,I ,~trt':lTl1!1ow deplt'ti(ln.. rl'Hlhing from irrigation of
<br />lht-H' hUHk Other ta"k" indudt'd eollection uf infor-
<br />matilln and t'''llmation uf :<tream!1ow df'plt'lion,.:. rt'-
<br />"UltIlH:: frllm larm c(lll~t'r\"atiCln praclit'{':<, farm pond,;,
<br />
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