Show fcraO £:C71C71 water lai Qadv -- Utah Engineers frcn semi-ari- d advising Co cities cf ths rainy eastern tiiteard on how to obtain mm rater? It drl!bVscem likely - -s OrCitlte It does cays Dr Calvin Clyde associate director cf the Utah Water Reaxearch Laboratory at Utah State University It does and they are Engineers frcn UWSL have ccmpleted studies to to!? New York City Ncxfcli Va and other cities meet the needs they will have for water la the later years cf this century ‘-- rt hen where local pcecipliatica averages caly 14 inches cr lees a year we have been trays to ceps with water tlcetages feryears In the East where prccipitatica may be 43 or £3 ineis annually water shortage is a new prtelen Oar tony experienes fins cur ex“Oat pertise in water resource development atUWRL are seme cf the reasons we were ashed to help with the study” Dr Clyde explains The New York desalting study is a cccprnative efiert cf the US Office cf Saline Water the State cf New Ycrk the Ecard cf Water Supply cf New York City' Consolidated Edison Company and die Atomic Energy Commission with Utah Water Research Laboratory as consultants The study has to do with economic feasibility of supplementing the city’s water1 supply by use of desalting plants The technology of obtaining fresh water from the seas is under development The problem is the cost biggest Vi A k 0i j4 Clyde and colleagues devised a ccmguter pregram to make a meet nzZ'ztLz evaluation cf the cent cl obtaining water Dr brcxdemdCag Tfce New Ycrk study centers on plans to build a plant more than 1C3 times as large as any built Co far which would not only dcallt water tut also produce electee power (thus the Conso!idd Edlecn interest) using atomic fuel (thus the AEC interest) Planning lachs ahead to building ths plant in about 13 to 13 years Desalting plants are ccstiy to start up and chut down Per that reason past ? plaanlng has aeeumed continuous eperatiaa ones the plant is in service Cut operational cents are also ‘high and ths USU researchers have found that using ths desalting plant as a base lead unit that is one that runs continuously - is a pocr way to operate Operating costs are too great The better way is to use the demoting plant cetly to supplement other water sources “Drought insurance” is the way they describe the concept This makes it possible to construct and operate a plant at much lower cost ban if it were a base load operation - Using a' digital computer to store and interpret data on the historical record cf be city’s other water supply sources -rainfall streamCow reservoir and their usage storage etc USU the patterns engineers a sophisticated operating rule for desalting developed plants The water planner can use be rule to know when to turn be plant on and off while £ 4 k w be needed level of In their development cf the operating rule be engineers holding operating costs to a used data from be Cachnma minimum Project near Santa Carbarn In operation be planner will be Calif and also studied ways bat sbhT to do better than be be Deer Creek Project cf Utah operating rule’s predictions the could be supplemented by an Cgdbder say because he can intermittent desalting plant that data on water would take be brackish waters fill in be latest e weather entering Great Salt Lake and Si’"y forecast and make them available to Salt Lake snowpack levels usage predicted City as needed As a result cf belr research Research Water Utah USU engineers will also Laboratory conducted the studies recommend bat desalting plants under two contracts totalling be built in stages rather than all $72732 frem be OfTIce cf Saline at cnca A plant large enough to Water e needs all at meet full providing drought insurance and also - The lab conducted a training pregram Inst year to teach ether engineers and municipal water planners how to use be operating rule program to analyze water needs long-rang- lT Tbs first tusexmful tpendeo-temam perfertned fci Iowa y bicni long-rang- cnee would be overly expensive to build and to operate but a municipality can build cue in several stages and provide hereby for more current operating needs at much lower cost bey point out nn ‘ mek “&kJ“ ICnaQ O 9 yn d crpscUmc O wdi cedy wist I n n n ?n: tvcuInM OtinbhiCid CnCD C7Z0 C3C3 CCTuJO Ci SCO U3f C7$10 rnrjntawai 17oVo C:cro Co triwITmhw ' C if Oypy wij 30 co?vo yco $lfV5 Ci!7C:i7 mt roco:r:s-c- m i tc : 3 crAS atan ' has csra ACT IVB HAVu PAD COT - Jf y'pt i ill 3 rsD'vcy i j Frn-rjA- L ave 7C k t ' ' “rrrriirKanrrw- - — W' 4 |