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� I <br /> Stephen's Marine }I `3- June 24, 2008 ill <br /> ' Claim No. 12858 <br /> B. In-Situ Soil/ Groundwater Remediation: none identified <br /> C. Groundwater Trends: <br /> • Benzene trends are shown below , <br /> Claim 128158 <br /> 200 <br /> 150 <br /> 100 <br /> N _ <br /> as 50 <br /> fIl <br /> 0 ' <br /> M M M Iq - U) L(] Lo (D (D (D r- <br /> 0 0 0 0 0 0 0 0 9 9 a o 0 <br /> C T a C >, L c :3, a C >, a C <br /> m w m (4 m <br /> Time ' <br /> Vll. SENSITIVE RECEPTOR SURVEY: no wells identified within '/z mile of the site <br /> Vlll. COMMENTS AND JUSTIFICATION FOR RECOMMENDED ACTION <br /> A. Site Description: former 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: no active remediation identified, monitored natural <br /> attenuation <br /> E. Contaminant Exposure Pathway Evaluation: unknown <br /> F. Recommendation: The Fund concurs w th the San Joaquin County LOP that <br /> the Responsible Party must define the veitical extent of contamination, further <br /> define the extent of groundwater contamination to the northwest, and to conduct <br /> batch extraction to reduce groundwater contamination. The Fund will review this <br /> site next year to track progress. <br /> Kir arson, P.G. Date Robert Trommer, C.H.G. Date <br /> Technical Review Unit Chief, Technical Review Unit <br /> (916) 341-5663 ( 16) 341-5684 <br /> California Environmental. rotecdon Agency <br /> P.�}Recycled Pap Rr <br />