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Michael and Sharon Olivarez -3- <br /> Claim <br /> mClaim No. 8492 <br /> V. FREE PRODUCT: none identified <br /> VI. SOIL AND GROUNDWATER REMEDIATION <br /> A. Soil Excavation: unknown volume <br /> B. In-Situ Soil Remediation: none identified <br /> C. Groundwater Remediation: <br /> • MF_THOD- groundwater extraction <br /> • DURATION Jun 44 through present <br /> • VOLUME OF GROUNDWATER: 3,671,500 gallons (Feb 09) <br /> • MASS REMOVEU 025 kg of TPH-O (Feb 09) <br /> D. Groundwater Trends. <br /> • Benzene trends are shown below <br /> Br-NZENE Results for EW-1 <br /> 35000-- <br /> 30000 <br /> 25000 I <br /> 20000----- <br /> 15000----- <br /> CD <br /> 10000 <br /> 5000- <br /> ,ate <br /> SEN <br /> zENe.. <br /> VII. SENSITIVE RECEPTOR SURVEY- two vvel)s identified within f2 mile of the site <br /> VIII. COMMENTS AND JUSTIFICATION FOR RECOMMENDED ACTION <br /> A. Site Description: service station <br /> B. Site History: the extant of groundwater contamination is poorly defined east of <br /> the site <br /> C. Groundwater Monitoring Summary: moderate monitoring history <br /> D. Remediation Summary. groundwater extraction <br /> E. Contaminant Exposure Pathway Evaluation; unknown <br /> California Environmental Protection Agency <br /> .fl <br /> Qa� rtrdPaper <br />