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36 May 20WI <br /> ArjE-NC Projed No.95:-O 10 <br /> Page 3 of 6 <br /> jo rpM c prove a .of Calf is Tide Sa;ir Ioac}u n a ey �s formed by the Csreat alley <br /> ges ttvad ng ssymrr� tmzl trough(basin). <br /> gesrynclme,which is a elonIte,northwest- tical strut <br /> It is bor+dcred by the CoastRan to thew the M math Mom and Cascade Range to the <br /> : <br /> north,and-the.Stems Nevada to tom;chat. This trough ho leen.filled:with-sed encs 'derive fieri <br /> ]both marine and continental sources. Thickness of tbe*s4imentary fill raniges-from.thin veneers <br /> along-the "valley:edges 46 rhom the 20,000 feet in,tip south csntill -prtion of they valley.'The. <br /> se eomy forrmatioas range in age.with the.older depoo*beingprin a ymame in origin and the <br /> 3'0un . sits beteg primary:continental. Continch)-di i�ved kdii.= w primarily <br /> , <br /> younger - <br /> *P0 sited m iacust�e, 3sl fluva alluvial;environ rents astir iment sourgps tieing�e mountain <br /> ranges surrounding the valie�fOhnsted.aod°i avfs, 14f The site is iced ori,uncobscilidated and <br /> semi-consolidated-a�ltiv nm;lake,.playa and tern"deposits i f Quaternary age(Cahfoinia Division <br /> of Wines and 006169y,1971). <br /> The Modesto, Riverbank and, Turiock;:l ake Formations;and overlying.R�nt,.alluvium are the <br /> principal sources of.domestic gr water In the i'3,5aasquare mile San Ioaquiinr Valley.Ground <br /> Water Basin(Basin 5-22). <br /> 2.4. (3R0UND WATEk I)F H ANIS FLt}W.I31RE ON <br /> Based on the Sari Jo <br /> aq C+ouiity.Flood Gonroi Dsstnet and IVa# enervation District Lines of <br /> Equal Depth of Water.Welk Fa1119J8reap,the estitna#ed depth to gourd water iia the vicinity of <br /> the site is 55 to 65 fent l eloW°. ace'grade(bs8). <br /> Based upon data obtain`froth riearby-sites,the prevailing,ground water flow direction.in the <br /> . <br /> vicinity of the site is e�tiirr>$t to lie,ryoiiheast: i�owever, flow direction may be both locally,arid <br /> seasonably variable. <br /> 3.0. . SCOPE OF WORK. <br /> AGE proposes to advance tuvo soli probe borifi", c}colleei soil samples to <br /> confirm the reduction- <br /> in-hydrocarbon concentrations at tht:srte.The investigation will consist of the.follovdng tasks <br /> `Perxhitting and pre field work activities; <br /> Soil,sample collection and analysis; <br /> Repo P�� <br /> Soil boring ab ndonment. <br /> Advanc d COoEnviree meual,foie. <br />