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S1 it E C 0 R Atlantic Richfield Company ARCO Service Station 4932 September 22, 2003 Page 6 Expansion of the remedial well network to Include offsite wells EW-2, EW-3, EW-4, EW-5, and EW-7 Is expected to be completed by November of 2003 Revocable and building permits through the City of Stockton have been issued for completing extension of the remedial system to offsite wells Currently, Atlantic Richfield Company Is awaiting access to the adjacent Taco Bell property to the north to complete a horizontal boring beneath Harding Way When access to the property is granted, extension of the remedial system to offsite wells will be completed Weekly Interim groundwater remediation in offsite wells EW-2, EW-3, EW-4, EW-5, and EW-7 by batch extraction with a vacuum truck will be Implemented during the week of September 22, 2003 and will be conducted until the expansion of the remedial system is completed If there are any questions, please call us at (916) 861-0400 Sincerely, - SECOR International, Incorporated 1-95OQp,OFESs�� 411 07 Z94 ��Q�S� 4�N'�0`�_' Clinton Harms NO C p$839�� m Project Scientist Bqenkosky, oF ca�.�4us y table Senior Engineer Attachments Well Construction Details Table 2—Soil Analytical Results Table 3—Groundwater Analytical Results Table 4—Soil Analytical Results—Stockpiled Soil Table 5—Soil Vapor Extraction System Performance Data Table 6—Groundwater Extraction System Performance Data Figure 1 —Site Location Map Figure 2—Aerial Site Plan Attachment 1 —SJC EHD Letter dated November 7, 2002 Attachment 2— Permits Attachment 3— Field and Laboratory Procedures Attachment 4— Boring Logs Attachment 5— Certified Laboratory Analytical Reports and Chain-of-Custody Documentation (Soil) Attachment 6—Well Development Sheets, Certified Laboratory Analytical Report, and Chain-of-Custody Documentation (Groundwater) r cc Mr Paul Supple, Atlantic Richfield Companyk� v i 1ARC0149321Reportslrernedial well start up doc