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o: <br /> Best California Gas 3- <br /> May 9, 2008 <br /> Claim No. 13729 <br /> s t; <br /> B. In-Situ Soil Remediation: <br /> • METHOD: soil vapor extraction <br /> DURATION: Jun 99 through present <br /> MASS REMOVED: 158,959 pounds of TPHI�G ; <br /> • < RATE OF REMOVAL: 4.1 pounds/hr <br /> C. Groundwater Remediation: none identified 1. <br /> D. Groundwater Trends: <br /> MTBE trends are shown below •� <br /> Claim 13729 <br /> 4500 <br /> . 4000 . . . . . . . . <br /> 3500 - <br /> 3000 <br /> 500 3000 <br /> 2500 - <br /> LU <br /> 500m 2000 <br /> F- <br /> 1500 - <br /> 1000 - <br /> 500 <br /> 5001000500 <br /> 0 <br /> o`' & o`' 00 00 <br /> Time <br /> VII.. SENSITIVE RECEPTOR SURVEY: two wells. identified within%z'Mile of the site <br /> VIII. :COMMENTS AND JUSTIFICATION FOR RECOMMENDED ACTION <br /> A. Site Description: active retail gasoline station <br /> B. Site History: the extent of groundwater contamination is defined - <br /> C. Groundwater Monitoring Summary: strong monitori.hg history <br /> D. Remediation Summary: soil vapor extraction ' <br /> E. Contaminant Exposure Pathway Evaluation: unknown <br /> CaliYo—lwza En virorrm entalProtectioii-lgn7ey <br /> �.t�Recyc%d Paper Al. e� <br />