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RMB Garage - 3- May 5 , 2009 <br /> Claim No . 16768 <br /> VI . SOIL AND GROUNDWATER REMEDIATION <br /> A. Soil Excavation : unknown volume <br /> B . In -Situ Soil/ Groundwater Remediation : <br /> METHOD : dual phase extraction <br /> DURATION : Sep 08 through present, system off due to suspension <br /> VOLUME OF GROUNDWATER REMOVED : 54 , 670 gallons <br /> • POUNDS OF TPH -G REMOVED : 75 pounds <br /> C . Groundwater Trends : <br /> Benzene trends are shown below: <br /> BENZENE Results for MW-3 <br /> 25000 _ . ._ _ __ - - -1 __._ _. _ , -. . _ ,_20 <br /> i <br /> I <br /> 1- 22 <br /> 20000 --. .._..__. ! _ —_- <br /> ilk I __—i _ 24 <br /> �j 15000 —i 26 m <br /> 1 r 28 c <br /> m 10000 �" k _ 1- 30 p <br /> it <br /> 'I �\ 32 <br /> 500034 <br /> ,� - � i - - <br /> << <br /> 36 <br /> r <br /> — BENZENE -- Depth to Water <br /> VII . SENSITIVE RECEPTOR SURVEY : one well identified within ''Y2 mile of the site <br /> VIII . COMMENTS AND JUSTIFICATION FOR RECOMMENDED ACTION <br /> A. Site Description : former service station <br /> B . Site History : the extent of groundwater contamination is undefined north of the <br /> site <br /> C . Groundwater Monitoring Summary : strong monitoring history <br /> D . Remediation Summary: dual phase extraction , system off <br /> E . Contaminant Exposure Pathway Evaluation : unknown <br /> F . Recommendation : <br /> In May 2008 , the Fund made the following recommendation : The Fund <br /> recommends that the San Joaquin County LOP direct the Responsible Party to <br /> assess remedial technologies and implement active remediation to achieve <br /> Water Quality Objectives in a timely manner. The Fund recommends that the <br /> California Environments/Protection Agencjf <br /> �O Recyded paper <br />