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y <br /> 3 <br /> xEI_P91-0202.P2 <br /> April 9, 1991 <br /> Page 3 <br /> m and 0 057k <br /> gasoline, with benzene.'levels. at' 0.005F pp W S and <br /> TPH as g- ies 5W ti and SW-E: wJJ1e samples 6 s <br /> ppin ,for same asalin�,x nging-from 3,.5 rpm. ', <br /> 5 W.1showed lev els, of TPH._as _g.. <br /> from 0.19 pp ► to 0.57. <br /> With benzene levels ranging <br /> PPm <br /> the 11'. pXoduc6. <br /> t pipe ..trenall.. sampleG <br /> Analytical results of asoline, total lead <br /> with benzene levels . ranging. fro <br /> indicate non-detectable levels of T H as g <br /> and EDB for all samples, <br /> m to:.0..018 ppm: Laboratory analyses also indicate <br /> -0`�Q068 pp les P1 through <br /> ron-detectable levels of TPH as diesel for camp <br /> P3. <br /> of the soil samples collected from <br /> (samples W01 <br /> The analytical results PCB 1 <br /> beneath'. <br /> the Waste oil tan- and remote fill line <br /> and P12) indicate non-dete°table levels of TEPH, BTX& , <br /> detectable <br /> and all EPA method 8010 constituents for both samplelevel of <br /> s The <br /> laboratory analyses a1soP 4J di caMet� Co c n ratio 5 for each <br /> TPH as gasoline for sample Table 2"and the laboratory results <br /> the soil analyses are summarized in <br /> sample are as indicated in <br /> attached. Results of <br /> Tables 1 & 2- <br /> 2. SiteDescri tion: The <br /> subject site is presently used Rs a gasoli�e station. The <br /> characterized by gently slo ing, <br /> vicinity of the site is raphy. The site is locatedthejnorth <br /> southwest trending top hwa 99, and is located on <br /> to and east of �•s• Hag A Location Map and site Plans are <br /> side of Keo <br /> attached to this report. <br /> 3• H dralo <br /> and Re Tonal GeolO <br /> The stbsurface sails exposed in the tank pit excavations <br /> of "son to 4. <br /> a clench of abpn ? <br /> r zmarxly. g,�•. -' slimy : Lay <br /> appeared L-� consa t P e �nturn;underain_b rade} . <br /> feet be]ow cjrade� �th�c+ r _ s) about 26 feet below 9 <br /> maxlmu?a ,depth . explored.s�( excavation toy he <br /> 26 feet) . Based on recent commun_ <br /> `Ground water was not encountered within the California, <br /> maximum depth explored f of Rancho Cordova, <br /> tion with West Hazmat Drilling �5 to 65 feet below <br /> the ground water dtable <br /> i between the <br /> Lodi approximately over the <br /> last several <br /> years has range <br /> grade. <br /> The subject site is situated near the approximate center of <br /> c province of California, and is <br /> the Central Valley qeomorphithe--S <br /> oacrament0-5an_.3.oac�uin <br /> situated adjacent to and east f <br />