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Tuleburg Warehouse -4- May 27, 2010 <br /> Claim No. 12586 <br /> D. Groundwater Trends:: j-Z 7 <br /> • MTBE trends are shown below, source area and down gradient, respectively. <br /> r :pMETHYL TERT BUTYL ETHER (MTBE} Results for EW9 <br /> 12000-` r ,x .! <br /> 10000 <br /> $000, 1 <br /> i"`-.rY :'>.` y rµl v i- w+fir'. •.;w o:r,r-«�,..�,. .x <br /> ,a 2000 <br /> r <br /> J...a g <br /> ire F <br /> !L <br /> 'r`y-.� <br /> .MET HYL-TERT-BUTYs'ETHER(MTBE) _ d ya: <br /> r �tP �i. ,w 1` .r,� n �; ti <br /> METHYLyTERT BUTtYL.ETHER (MTBE) lts Resufor <br /> -.3000- <br /> 2600 <br /> 000 2500 t <br /> e r <br /> 1 `71=' s .tir t .I r C.�'• �._ rH-Q. 44 j,4- V;. <br /> t - Iia iai <br /> - - �� METHYL TERT BUTYLi ETHER(MTBE) � �' - <br /> r yS <br /> VII. SENSITIVE RECEPTOR SURVEY: eight wells identified within Y2 mile of the site <br /> Vlll. COMMENTS AND JUSTIFICATION FOR RECOMMENDED ACTION <br /> A. Site Description: former gasoline station <br /> B. Site History: the extent of groundwater contamination is defined <br /> C. Groundwater Monitoring Summary: strong monitoring history <br /> D. Remediation Summary: soil vapor and groundwater extraction <br /> E. Contaminant Exposure Pathway Evaluation: San Joaquin County LOP is <br /> directing the RP to assess the potential for vapor intrusion. <br /> California En vironmeatal Protection Agency <br /> �.a Reeyde'dFoper <br />