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r Marci's Diesel Service ', -3- 1-6. ` March 19, 2.008 <br /> Claim No. 7709 <br /> • B. In-Situ Soil Remediation: none identified,- <br /> METHOD: `bioventing ° <br /> • DURATION: proposed, <br /> C. Groundwater Remediation: <br /> • METHOD: biosparging <br /> • DURATION: proposed <br /> k T <br /> D. Groundwater Trends: - <br /> • TPH-D trends are shown below: <br /> Claim 7709 <br /> 45000 <br /> 40000 - <br /> 35000 <br /> 30000 <br /> I 25000 -+_MW-4 <br /> p —a—MW-5 . <br /> za 20000 <br /> ,,.._..MW-7 <br /> ~ 15000 <br /> 10000 } <br /> 5000 ``�` - ' f�. - '' • <br /> Cl) M M VlqT to LO U') LO O O O to 1-. f� <br /> O O O O O O O O O O• O O O O O O O <br /> N N 7 N N 7 N 0 CL N Co <br /> €• Time <br /> VII. SENSITIVE RECEPTOR SURVEY: 17 wells identified within Y2 mile of the site <br /> VIII. COMMENTS AND JUSTIFICATION FOR RECOMMENDED ACTION <br /> A. Site Description: shop and diesel fueling area <br /> B. Site History: the extent of groundwater contamination is defined <br /> C. Groundwater Monitoring Summary: strong monitoring history <br /> D. Remediation Summary: bioventing and bios:parging proposed <br /> E. Contaminant Exposure Pathway Evaluation: unknown <br /> California Environmental Protection Agency <br /> Q*Recycled Paper <br />