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t <br /> V <br /> a <br /> Raymond Investments, Case #2 -3- July 29, 2010 <br /> Claim No. 17905 <br /> D. Groundwater.Trends: <br /> • Benzene trends are shown below, down-gradient well. <br /> ;� :., . L, > ��i °-� BENZENE Results forllr{11V-4 E ti� <br /> t <br /> ,— <br /> 7 f t <br /> TV <br /> .' <br /> 8j' c <br /> m <br /> it r <br /> { x . l� 1 i :- E - <br /> -,,V <br /> u 2 <br /> r,. <br /> yt 3.•e ''x� '�' �i � BENZENE �Q@pttl40Watsr "F'Ki` €r'a},° #` � - 6 �,j; <br /> -100 <br /> SENSITIVE"RECEPTOR-'SURVEY--was conducted-ih-May-2006: <br /> Vill.' COMMENTS AND JUSTIFICATION FOR RECOMMENDED ACTION <br /> A. Site Description: vacant commercial lot <br /> B. Site History: the extent of groundwater contamination, is poorly defined <br /> northeast of the site. <br /> C. Groundwater Monitoring Summary: moderafi `monitoring history <br /> D. Remediation=Stiirimary: nonedentified , <br /> Cont mm Want Exposure Pathway Evan ation: soil vapor samples were <br /> collected in 2007, human health-risk assessment was conducted, found not to <br /> represent significant risk. <br /> F. Recommendation: <br /> July 2010, the Fund concurs with the San Joaquin County COP that the <br /> Responsible should define the extent of groundwater contamination northeast of <br /> the site. The Fund will review this site next year to track progress. <br /> Kirk Larson, P.G. Date' Robert Trommer, C.H.G. Date <br /> Technical Review Unit Chief, Technical Review Unit <br /> (916) 341-5663 (916) 341-5684 <br /> CaMornia EaWronmentaiProtection Agency <br />