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S EC ® R <br /> Mr Harlan Knoll <br /> January 14, 2004 <br /> Page 6 <br /> CONCLUSION <br /> Based on the absence of petroleum hydrocarbons and fuel oxygenates in soil and groundwater from <br /> wells MW-8 through MW-10, the horizontal and vertical extent of dissolved petroleum hydrocarbons <br /> and fuel oxygenates have been defined within the deeper water-bearing zone beneath and <br /> downgradient of the site SECOR will continue to monitor the presence of petroleum hydrocarbons <br /> and fuel oxygenates in the deep wells during subsequent quarterly monitoring events <br /> If you have any questions regarding the content of this report, please call us at (916) 861-0400 <br /> Sincerely, <br /> SECOR International Incorporated <br /> ,� <br /> Kristen Flesoras � <br /> Protect Scientist <br /> GG � � Na C 068=� <br /> • Clint Harms * ExVL 1201/06 <br /> Project Manager <br /> OF CAL�� <br /> J44f <br /> Rkosky, P <br /> Senior Engineer <br /> Attachments Table 1 — Soil Borings and Well Construction Details <br /> Table 2— Soil Analytical Results <br /> Table 3— Groundwater Elevation and Analytical Results <br /> Figure 1 —Site Location Map <br /> Figure 2—Site Plan <br /> Figure 3—Sod Chemical Concentration Map <br /> Figure 4—Groundwater Chemical Concentration Map <br /> Figure 5—Groundwater Elevation Contour Map—Deeper Water-Bearing Zone <br /> Attachment 1 --SJCEHD Work Plan Approval Letter Dated June 24, 2003 <br /> Attachment 2—SJEHD and CSPWD Permits <br /> Attachment 3—Field and Laboratory Procedures <br /> Attachment 4—Boring Logs and Well Construction Details <br /> Attachment 5—Certified Laboratory Analytical Reports and Chain-of-Custody <br /> Documentation (Sod) <br /> Attachment 6—Certified Laboratory Analytical Report, Cham-of-Custody <br /> Documentation, and Field Data Sheets (Groundwater) <br /> Attachment 7 —Well Survey Data <br /> Attachment 8 — Non-Hazardous Waste Manifests <br /> cc Mr Ed Ralston, ConocoPhllllps <br /> 11ConocoPhdlipslTosco Marketing186711ReportslAssessment Rpt doc SECOR International Incorporated <br />