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<br /> <br />1.(' <br /> <br />~ <br /> <br />\ <br /> <br />1/1 <br />II' <br />oil <br /> <br />h <br /> <br /> <br />I <br />..., '::"'~"1~, <br /> <br /> <br />:~~ <br /> <br />"'~"" <br />.......-:."? <br /> <br />- <br /> <br />ero.. 'ecllon 01 ParadOx VIlley .howlng <br />~p 1IIIIormatlon.. <br /> <br />Paradox Valley Unit, CO <br /> <br />The bone disposal plan uSing deep well <br />InJOCtlon has been evaluated and is <br />coosiOered the rTlO5! cost--etfectlve dIsposal <br />alternatIVe. SpeclllCatlQl'lS for constructIon of <br />a deep well brine InjeCtion well were <br />prepared based on informalJOn Dy a <br />consultant <br />Two Indepeodenl consultants. hired 10 <br />rev'ew the specificationS. advIsed against <br />proceedmg They OElterrmned the <br />specifICationS prepared by the contractor to <br />be tectmlC8lly Inadequate ana did not lall.e <br />into account problems encountered In deep <br />....ell dolling through 14,(0) teet 01 fluid type <br />;;.alt lormatlOns wtllch cause e:w::cessively high <br />'""'""'" <br />Based on their recommenclallOl"lS, <br />lltematlve Ot>ep well SItes Will be seiOCted <br />...here the ParaaOll bnne COUld be pumped <br />nto a IOrmatlOl1 at 9,0:0 leel or ~ By <br />lanuary 1964, Reclamation Will Obtain <br />IE'OPh'y'SlC81 data ana In~t'981e alternative <br />lJOCllon locations <br />A new engineenng consultant will be h!1l:'(l <br />:> redesl9n a new deep well cllsposal system <br />nd prepare constructIOn specrlicatlQns The <br />hanges In SChedule will delay contract <br />ward 01' at least 14 months. to Marcn 1985 <br />hIS Will also CleIay me DeflMe Plan Repon <br />upplement Wlltl a nINo re~ date 01 Apnl <br />... <br /> <br />~ater Ouallty Standards <br />legulallons <br /> <br />On Nowmber 2, AClmlnlstl1'ltor <br />Jekelshaus 01 the EPA SIgned the nMsed <br />'aler Quality Stanoares RegulatlOl1S These <br />~re pubhsned In the Federal Register on <br />JeSday, November 8 and Will take effect <br />~er 30 days The regulations are more <br />onsistent WIth the prevIOuS Water Quality <br />andards Regulatl()l"lS than were the <br />anges prODOSed over one year ago <br /> <br /> <br />L.k~ Pow~1I <br /> <br />Ion Data Base <br /> <br />A Reclamal/Q(l research team has <br />comPle1ed a one-year stU(ly to oetemllne <br />long-term trenas and sallnrty streamflow <br />relatlonsnlp The study is entitled, "Tr&lds In <br />ConcentratIOn, LoaCl. and Mass FractIOn 01 <br />MaJOr Solutes at Selected Sites In the <br />ColoradO River Basin. <br />A theorellCal model lor oescnbmg <br />concentratJOn-Streamllow relationships has <br />been derived and compared to the wlOely <br />used emplncal power model Both modelS <br />were found to describe the relatIOnShip <br />equally well and eltnercan be used tocorroct <br />IOf tne variability 01 streamllow In testing the <br />srgnlflCance 01 long-term concentratIOn <br />trends <br />Tr&lds In solute concentration and mass <br />fraction were evaluated for 12 gaging statIOnS <br />for time penodS pnor to malor l10w <br />regulatroo ConcentrallOns 01 magnesium, <br />$Oj,um, and sulfate were fOUnd to nave <br />generally decreased In Chermcally balanced <br />prr)pO(tlons ThiS resulted In an overall <br />reductKll1 01 approximately 2 rng;l atttle <br />Lee's Ferry and Grand Canyon StationS <br />during the penOO 01 rocora \19'0-1963), <br />cnanges In concentratIOn, loaCl, and mass <br />IractlOn 101lowlng COnstrtJCtlOrl 01 the major <br />ColoradO River Storage ProjOCt re5er"VOll'5 <br />were evaluated USing a StatistICal -Hest~ 01 <br />differences In mean values belOffi and after <br />development Trends loIlOw1ngdevelOpment <br />were analyzed USIng linear regressIOn <br />In general. mean concentrallOn and load <br />bOtl'l deCreased, panlcularty at Lee's Ferry <br />and Grand Canyon, belOw lake Powell <br />rotlOCt:lng rest!fVQlr filling effects Trends <br />SInce 1965 have not Md as SIgnificant an <br />effect, Where they were I()entlfled. most <br />tr&lds inchcated oecreaslng loads and <br />concentratrons <br />Below major reservQll'5, c:oncentratlOl1S <br />and loads have generally decreased. and <br />seasonal fluctuations In concentratIOn and <br />mass tractlOl""l nave been rt'dUC€(j Slgnllicam <br />mean values changes WtllCI'1 were obvIOuSly <br /> <br />- <br />-J <br />en <br />:..J <br /> <br />. <br />'. <br /> <br />not assocIated With reservoir develOpment <br />COUld be attnbuted to other human actfll1ties, <br />such as coal mlnmg In the Yampa drainage, <br />plugging 01 the Meeker Well on the 'Nhrte <br />River, and urbamzation and sahnltycontrolln <br />the Grand Valley area HO'NeYer, the large <br />reser\IOIl'5 seem to be the major Influence on <br />sallnrty In trle L~r BaSin gage stations, <br />The results Of thiS study Will also be <br />presented to me Forum W(j(1( Gl'Ollp In <br />Februa'Y <br /> <br />Reservoir Chemistry Study <br /> <br />ReclamatIon contracted in Fiscal Year <br />1962 lor a twQ-<)lmerlSlonaJ reservoir model <br />01 Lake Powell and Lake Mead to Improve <br />temperature and salinity modeling capabitrty <br />lor reservoll'5. <br />The contract for development of a two- <br />dimensional model has been completed, the <br />models nave been tumed over to <br />Reclamation, and RecJamation staff have <br />been trainee in their use <br />The prolrminary results indICate that the <br />lX>tentlal calCIte Pl'OClprtaton In laKe PQv.teIr <br />IS less than 10,(0) tons per year, and Lake <br />Mead has a polentlal 0130,(0) to 40,(0) tons <br />per year 01 calcite PfeClpttatlOl""l thIS <br />represents only the potential, not the actual <br />PfEClpltation, whiCh would be less Calcrte <br />precipitation potential is less than was <br />esllmated PrevIOUSly by other means <br />Further WOr1l will be done by ReclamatIOn <br />staff In the next lew montns to firm up thiS <br />esttmate and to Incorporate It into our long <br />range salinIty profE'CllOns <br />In February. thiS olflce Will have a <br />presentation on the mooels and their results <br />lor the Forum Work Group and Internsted <br />Federal representatIves <br /> <br />Clean Water Act <br /> <br />The Senate EnVIronment and Public <br />WOr1lS Commrttee approved a nNonpomt <br />Source PollutIOn Management Program" as <br />a l1ew' sectlon to the Clean Water Act <br />amenoments (S431). SectIOO 319 would <br />autllOnze $70 million In FY 1965, $l00mlllion <br />.n FY 1986 and $130 millIOn In FY 1967 <br />5P6Cllically tor nonlX>,nt source control <br />programs The ultImate late Of U'Irs sectIOn is <br />unclear.~ <br />