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<br />0002115 <br /> <br />m <br /> <br />As subsequently discussed under "Experimentnl wells," the shallow <br />ground wnter to Lt, pumped from the sah-ug:e areas would involve <br />concentrations of dissoh-pd solids ranging from 97 to 442 parts per <br />million, with the percent sodium ranging from 15 to 55. <br /> <br />Summary of '!oater ami/able for salrage <br /> <br />The foregoing estimutes, summurized in table.G, establish that there <br />is nil un'rnge of llo11ess thun 101,700 ficre-ft'et of good quulity wilter <br />\vhich could be snlvtlged 11lll1ually from the selected salvage aretl <br />without affect.ing the hydrologic bulullcc of tlw Closed Bnsin. <br /> <br />\VATEH S.H.VAGI:; <br /> <br />Gro/mll water <br /> <br />Sulnlge of ground wHlef ,,"ould he IlccompJishcd, without udvcrsc <br />etfect on adjoining irrignted un'us or the hydrologie blllullcc of the <br />Closed Btlsin, by lowering the ground-wuter tuble to II depth that. <br />essentially precludes nOnbelH'ficilll cnlpotruospirHtion and pumping <br />nn umount of water equal to, but not 111 excess of, the Ilonbeneficinl <br />(','upotrnnspimtion. To di'termine the minimum depth to ground <br />wuter required to essentially preclude C\<upotrunspirntion of ground <br />wuter, nn anHlysis wus mude of t.he sew'II kpy wells within the salvage <br />urea Hlld s("<en udditiollnl wells in !lnd ndjut'l'llt to the urell to deri,'c <br />the relntionship I)('tw('en dppth to ground wllter und !lllnUtd enlpo- <br />tftlnspirntion. This relntionship, spt forth on Drnwing 253-504-1833, <br />shows thut in Illld lldjltl'ent to t!it' thnlwcg Hnt! slimp of the Closed <br />Bnsin enlpotfllllspirntion of ground wlllpr is lH'gligihle when the depth <br />10 ground Wtltt'r i:-> gn'att'r thun nLout S fpet. <br />E:rperimeutalwe/ls wpre' dt','('lopp{l unci tl'strd to obtuin neccssnry <br /><Jutn for dt'sign. Previous inH'stigatioIls of the ground wllter in the <br />Closed Rusin have shown thut. both the shallow, unconfined ground <br />wllter and wilter from dt'l'IWr uquifl'fS mon' townrd the t.halweg /lnd <br />slimp where tIH'Y un' lost through (',.tlpotrnflspiration. Although many <br />'<tlrintions <'xist, the first. reasonllhly consistellt day Iny('I', or t~quicllldc, <br />is gelleflllly found nt II depth of about 70 1080 feet. Above this depth <br />lies 11 hett'rog\'ni'ous IHnss of IIlntl'fin! ('ontuinill~ discontinuous, <br />l('nticulllr cla\" IHyers, Bl'CllIISP of tIlt' discontinuity of the eltlV luyrl'S <br />in th(' first io t(; SO fept of depth, wMer fl'om ill<' drcper aquifrrs <br />mo\"rs upward through tIH' lu,t(,l'og('[)('ous matpriul in the tllUlw('~ <br />;lIHl sump lln.d is l'OIlSUIlWU by nonbl-'l1('ficillI ~vapotranspirnt.ion. <br />rims, souw wltIHlrawul of water frolll deepC'I' aqUIfers would Ilccom- <br />ptlllY uny pumping of shnllow ground \\'uters, though 110 penetrution <br />of the nquidmh-' 10 ohtuin nl't.f'sinn \nl.ter is contemplated, <br />.Aquift'f IH't{'rogt'llt'ity i:-:. so pronounced tlult specific charnct.pristics <br />(-,nllllo1- bl' IH.'curnti'ly {h'lilll'ated for nllY portion of tll<' :,akage arCH <br />\\'ithollt drilliIl~ and testing il IHllllhl'r of wdb apl!roximately ('quint- <br />lt'Ilt to that rcquin'd for the proposed plnn of d{'\,('!opmcnt. This <br />conditioll mlllh' it Ile('('s~llry. in obtllining datu for dl'~ign. to de\"t~lop <br />and tpst. n fj'Il:-OIlllblt. number of t'xperimentuI w{'ll~ throughout the <br />sldnlg:e un'u Hnd to n~Sllmt' thnt the re~ult~ of the tt'~t~ represent.ed <br />tl,'prag:e (,ollditoll~ fnl' nlri(ll1~ p(lrtioll~ of dIP ~tllnlg:e :In'l!. This premi~e <br /> <br />-11-1780-10-7 <br />