|
<br />,llxlUt CD=,S :md tilt" indi\'idu:ll detision ~Upr{ln "y"tt..m..
<br />em ~ found ;11 the D....rision :-'uppon :'\y..tt'1ll wt:!"'itt' ;It
<br />n_bs_st;l\t~.l'O,US_
<br />111l' prime Contr.K1or for th<: woundw;ut.r componelll of
<br />the SPDSS, Camp Dre_s...;\:"r .\kKt~ leD.\!) will dL....dop ;11
<br />!east two imt"grdl\:"d waler hut!I!t"1 modI:"!.; of the South
<br />Pbne River, One m(xk.1 \,,'ilI look ,11 the South PLllll;' River
<br />10 that p;.lrt of thL" lb<,in whert' tht' rh-t.r ;llIu\-ium is in con-
<br />tat1 with tlw outnops of Ult" h..:dr(Kk ;lquiftTs, anJ Iht' '>(."<.'_
<br />ont! model will l(x)k at tht" rin.'r t!own...tn,'.j1l1 from the
<br />cont3Ct of tht" rin.r allu\'ium with tilt" outcrops of thc
<br />Ixxlrock aquifl'cs_ Tht' CD.\! rnout'iinl! dfon will uS(' d;IU
<br />dt:\'dop..xl sinn' Uk' 19:-15 UatLl x.t u_",,-d in tht, originallkn-
<br />wr B;t..in moud (.\IODFLO\'n ue.'>Cribeu t.arlier, In audi-
<br />tion. CD.\! will pr<x!ul-e ;! nt'w set of m:lps for thl. ht..dro..:k
<br />aquifers. including stmClure on the tops ;lnd bast;'" of thL'
<br />individual :lquift'rs, ;llld nl't ".lnu..tonL',- ..iltstonl' isoJith... for
<br />e:lch aquifer 10 he U.;t>u to dt,tt'rmint" :lrll0un\... of rt.X'O\ec-
<br />ahle w:ller. TIlt" final repon may also n-cOllUllt'nd other
<br />changt"s to tht' Dl'n\"l'c ltlsin I(ules and Rt'gulatinns. If
<br />changt's to Iht" Rule.. art' rl'coml1knded ;mtl aL'Ct'pted hy
<br />the St.,tt' Engineer. then ;1 new rult'lllakin~ pron....." unJt'c
<br />the Administrative l'r(Kedurl'S Act will take plan'.
<br />In evaluating till" nt'l'd for, ,lOd impact of ("h;lOgin,g the
<br />Del1\"er Ba~in Rule.'>. _se\'eral factor:>. must he con.sidl'rl~d_
<br />Ba.'>ed on additional dala Kquirt"d since 198.,. much dis-
<br />cussion has ceOlt'rl'd around the need to adjust [he statu-
<br />tory specific yields of the indi\'idual Dt,O\'t'f Ilasin hedcOt.'k
<br />;!quifers, Some of the discus~ion is b;l.~ed on lhe work
<br />done on the carl' t:lken from the Denn'r ,\ltlst'llll1 of
<br />:'\:lIure and Science'.'; Kiow:l COft' hole lLare~'. 2001). This
<br />slUd}' indicates that till' ~pt.'dfic yidd<; ;....signed to the indi-
<br />vidual :Iquifl'rs ;Jre 100 bi,gh. p"'rhaps hy as murh as jO
<br />pt"Kt.nt in some cas('~,
<br />Sim'l' the I<jH; implement:llion of Tht' nenn'r B;!...in
<br />Rule:;. a ~ignificant ponion of the groundWatef alonJ.: the
<br />From Range has hl't'n quantified and ht'OllT\O: thl. suhit'l1 of
<br />dl.'(:fet"s of the 1;1'-:lIer ('OUrt. Tho-.e dt"crl'es ;If... now n'S jlldi-
<br />("lI/O, oc suhjt"ct to e.'(i.~lin~ court decision.... ,mu cannoT I~
<br />ch;mgl>U. Any future changt's tn till: n.lk:>. would not aff...ct
<br />thl'"'' ...xisTin).: tllTrl'l',s ttl withdraw f>tomer Basin grouml,
<br />waler. Application... or cbims for righh 10 thi.~ woundwater
<br />continul. 10 be filed in (:UlIn each momh_ .\ny rl"<.!unlon in
<br />,spt:citk \'ield \\-hich could 1)(: supported hy Llpt..y's work
<br />and tht: work hl'ing dont' by CD\1 could only be applil'd 10
<br />cbims nude after implementation of nl'W Denn'r lb..m
<br />Rule..... .\lost of the Lmd are;1 in th... D...mer Ba~in ID \,,-hith
<br />any nt'w or r...vi....-xl rules would ;lprl~ I" k"Cllt.U on Iht,
<br />plain.~ l':)...;1 of Ihe From f(;lllgt. nlt'rrop< l!iran art:;IS
<br />.-\nolho:r bctor that :>.hnulJ hl' conslJert.d i... IhL' ,(dual
<br />physil:al limit;l\ion on how much w;lkr un he.: \\ilhdf;!\\ n
<br />from ;tnd inJi\-idual ,\e11 rq,;;Jrukss (If ho\\ Illllch -p;lpt:r
<br />w;lIl~r~ ,1 j)t;"CSlJn or (Jr1>!:ani..~tlion ll;l~ .1 right tll pump .-\s
<br />"'-aler k\'d~ lit-din.... purnpin)o! r.L1...... dt.c!im- in rnpon...~' Tn
<br />
<br />DFl"HOl'.\fL\7 Of nlf: Rl.'GI'L4TDJ{) FHAlff:1l1JfU, fDl< 1J1_\1FJ< B.H1S A(1l7FER,~
<br />
<br />IOLfe:.lst'J head.. :.lOll ('()...t." incrt':i....... 1x'\:auS-l' it uk,.... molt'
<br />t-nt.I}.~- to lift the W;lter hightT Ewnlll;llJy ;In additiunal
<br />wdl or \\dl.. will han,' to l>t, t'ofl..truCled in order to pro-
<br />JU('t' the ,.;;tml' .unOUnl of water ddivt'fl'u hy lhe ori~in;ll
<br />\\'dl. Tht' cost of con:>.tfUl"Iing additional \\db 10 mainlain
<br />,I ..pc'(:ific l...n;,l of \\'att'r produclion ma~' nukt. Iht' waler to
<br />l'xpt"nsiye to lk\'dop. This limitation is particularly si,Hnifi-
<br />GUll to municip:.lltYIk W<lter prO\'iden; t~cause of the high
<br />\'()lul1wS of \\:.lter that lUlIst tx. pnxJlKl'd and dlt' l'osl of
<br />COlblfUL-ung a well Ihat must ddiv...c .;t.\-l-'f;t! hunJr...u f(al-
<br />Ion... of \\;lIer pt.'r minUll' (gpml. Indi\'idual rl'sidemi;!1 well
<br />o\\'nt'cs. who aR' Imliteu by sl,llute to ;1 maximum pUl11p--
<br />in~ r.Ul' of I::; gpm will prnhJ.hly not b... faL'ed with tht'
<br />prospt.'t:t of ha\-inJ.: 10 drill additional wells to 11l;lintain an
<br />adequatl' flow of water to St'f\-t' their nCt.lb. hUI I1My I~
<br />bt:t'd with inlTt';lseu ent'I}.~' ("O.~[S as ,I rt'sult of h;lvin~ to
<br />lift the groumh\at\:"c highl'f.
<br />Certainly. tl1o.",,' indi\.iduab anu enTili,,'s with hedrock
<br />;Iquifer wdls kl{,:atl.d in tht' outaop ;lrt';!S will. or already
<br />l1;l\'e ht'l!un to feel tht' d1n1s of tilt' lowt'ring of 11ll' arte-
<br />..ian heads in thl' aquifec... In some CISl'S. the remedy is to
<br />drill dn'lx'r into lhl' aquifer to extend lilt. t1st-,ful life of
<br />their wdL In some cases drillin.1.( det'pt'r may not Iw an
<br />option. or may l'ome ;ll :I nJ...t in addition tu well constnK-
<br />lion cost~ tx~causc the groundwatec in t1e"-Pl..r ;lqllifers h:1d
<br />heen SL'\.t'rl't1 from thL' bnu hy a previous owner and does
<br />not I~long to th(' owner of Ihl' sudan: In some cases
<br />there i.. no deeper aquifec prl;'sent
<br />
<br />CO:'\CLCSIO:'\S
<br />
<br />\Xnilt' lhect' r1l;IY ultimately bc sulTidl'nt nl'W ttlta to jus-
<br />tify rt..dudn).: tilt' specific yield... of thc individual [kn\'l;'r
<br />Basin bt.'(irc)<.:k aquifl'r... therl'focc R.uucin~ thl' l"akubted
<br />amount of reco\erahk ~collndw;l1l'r !-x.neath ;1 sptYific JY.1r-
<br />ceI uf bnd. or tht. entire fkm't'r Basin. it is ollr opinion Ihat
<br />thl' economics of wdl conslruction and pUmplOg co...\.... will
<br />Ix' of wealt'r ...it{nitkanct:' in ('onlrollin,1.( tht' actual dt'I'dop-
<br />mcnt and pnx!uoiun of ,':roundwatcr. ;Intl will encourage
<br />the dl'vdopm<:nt ;1Ilt! ll"'" of ft.nt'wahk' "i-{JUcces of watl.r.
<br />For example, ust' of trL.,Hl'd "llrLll't. waler to f<,:chargl'
<br />bednx'k ~lqllift'r" m:lY he ~m ,lItcal1i\.... economic ,1!tt.m:ltin:
<br />to fllnlwr dt'\dopment of groundw,ltl'r in ..om..' lo..:ations,
<br />
<br />ACK."\OWLED(j~IE:\TS
<br />
<br />\X'", thank tlw CDWR tor ,Il'.......... lu ib frk.s ;lnd lihr-.lr:',
<br />\l11Ch of llll' informalion pr(.~l'nkd in this papt'r I" dl'ci\-L"d
<br />frnm in1crnal nwm()~ and rl.pOrts in IhL' filt.~ of the CD\X'R.
<br />and from cOIl\'er..;llion.~ with prl.'-t.'1lI ;lIld forml'r (mostly
<br />formt'rl ...t;1I1 ut 1he Cf)\X'!{ and mcmh.:rs of th... watL'r
<br />fl.btt.d consllh1l1g nl!lllllUlllt\-
<br />
<br />1~9
<br />
<br />TIll; f(,><'h \lounL;lIn '''''><UlI'JO()ICt''JJ"J.:'~lS
<br />
|