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Charles Skobrak *4•' -3- " May 7, 2009 <br /> Claim No. 1028 <br /> V. FREE PRODUCT: none identified <br /> VI. SOIL AND GROUNDWATER REMEDIATION <br /> A. Soil Excavation: unknown volume <br /> B. In-Situ Soil Remediation: <br /> • METHOD: soil vapor extraction <br /> • DURATION: May 08 through present, intermittent, currently off <br /> C. Groundwater Remediation: none identified <br /> D. Groundwater Trends: <br /> • Benzene trends are shown below <br /> BENZENE Results for VW4 <br /> 160000-. -.. -. - --..j.26 <br /> 140000�- --+ <br /> --- 28 <br /> 140000 <br /> 1200001_____ 30 <br /> 100000-9 _.. _.L,,'32 0 <br /> _ d <br /> 800001 -- '3475 <br /> �- <br /> 60000 —I- j� 36 <br /> : I. <br /> 40000 38 <br /> �- -- :— —jl-- <br /> 20000'- 40 <br /> 0- <br /> - 42 <br /> *-.-� BENZENE Depth to Water <br /> VII. SENSITIVE RECEPTOR SURVEY: two wells identified within 1/z mile of the site <br /> VIII. COMMENTS AND JUSTIFICATION FOR RECOMMENDED ACTION <br /> A. Site Description: retail 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 extraction, currently off. <br /> E. Contaminant Exposure Pathway Evaluation: unknown <br /> California Environmental Protecdon Agency <br /> Co Recycled Pape <br />