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3 <br /> �.r <br /> 't :, - ice .. a � � •~�'`� <br /> 44 <br /> Sit e Investigat�o>n Repo <br /> - <br /> 4" u m April'1997 ; <br /> y MULLER'&-VAII1 TILE COMPANY; �� ; <br /> 4t <br /> 1119 Roosevelt Street, Stock#ozz, California" <br /> , s <br /> a. <br /> f - r <br /> i` <br /> 1.0 INTRODUCTION ' k <br /> ', 'i ._r r-<r r.. •1" <br /> �_ � _x � <br /> In accordance with a.request'from.Ms Marge Hartman of Muller& Vail-Tile Company;AdvancedF` <br /> GeoEnvironrnental-,Inc. (AGE)-has.prepared-this Site Investigation Report=foe the collection of soil s = a <br /> -samples at 1'119 Roosevelt Street;:Stockton,.-California..,' soil.probe boring'was advanced_at the <br /> foi7xierurider round Stora e tank-.(UST location in.Novembgr'1-996 Tlie Iocatiori o f the site-,with . .: �` <br /> g g _ <br /> ) <br /> . respect'to the-surrounding.area-is-killustrated iii Figure 1 Location MapTM A layout of the;site is - <br /> �� - "' a.� Z -.}; '� - '-��' _,� Wyk -�.. Ss - d' -1 -� x•'.",-. <br /> illustrated on Figure 2'-Srte Plass ,F <br /> 4 The above-mentioned activities were performed in accordance with guidelines'for the investigation'- - <br /> { ' f of UST sites established'by,the San Joaquin""County Public Health Services Envirariiriental'Health' s x <br /> Division;'(PHS-EHD)and Central_Valley Regional-Water Quality Control Board (CVRWQCB) -Y w... <br /> a F,'' S+- + -r _ 6 i "� E.R., * >� y,_e '-, - s -c' r-•-rr a�"-- .,. �' - <br /> 2:0. BACKGROUND/SCOPE: <br /> OF WORK <br /> The site'is located in a flat,conuziercial area of eastern Stockton,California-�One-550 gallon gasoline"." <br /> : . UST Was'removed frbrri.the site in June 1.988 by Thorpe 0i1. One sample was collected,from=beneath <br /> the. UST. Laboratory,.analysis of the-soil sample indicated'that totalapetro,eum liydracarbons t s - <br /> quantified as: �asolirie TPH- and;xy enes'�were resent in�soil at',the site:-T.ota1 Iead wa"s"also_'. , <br /> q g g) Y <br /> ` detected at a concentration'.of 9:9=parts per.million (ppm).;Ethylene dibromide (EDB),_was not :.,,_ <br /> detected at the reporting_limit of 0 2 ppzrz Ground:;water is estiiria4 4o occur at a-depth of x <br /> ' approximately:50 feet below-surfacegrade4 <br /> 5 FI <br /> . Based on the detection h�cir car �=n <br /> - <br /> of y o b' s zn:the-sample, albeit rz�znor;the case was'iiot closed:by <br /> ` PHS-EHD at _..._,.: . . .. _ , �.d•r �.. ' - <br /> that time:The scope of work <br /> _'was"to further evaluate the subsurface soil ati the former <br /> -tank location. The results-of,this investigation are used to-determine the-rzecessity.,.for additional <br /> investigation/remediation_or.t6 warrant-a site,closure A-work plan to perforrti:the investigation was <br /> •i_ - , <br /> x submitted by AGE on_01`Novemher 1.996,.dnd''approved ozn-12 November F9'96_by the.PHS=EHD., <br />. �V; �.,. � � -3'ry� + rIw „ ��ti �� �4 E✓, i. ����� t.`� - - � c t F- y r _ <br /> - <br /> ,.•o .. t ` • ..s i 9 ''}�A-�F �, f ! iii- :'� u <br /> 30. PROCEDURES <br /> s 3.1: PROBING AND SAMPLING <br /> .'. <br /> On 13 November 1496;a single soil probe-boring was advanced at the site=using:AGE'S Geoprobe + , <br /> 5400 probing unit equipped with'lA25'ftT6h diameter probe rods'arid a 2 15=inch diameter soil <br /> sarripiing asserhbiy: Probe boring.P 1 was advanced near the center of the fozriier LJST location to' <br /> ('r'a`3`- ,x �s`-'_`r.f. �_ -� ,_ {� _�. :�• e- YL-, yr LF <br />