ARCHIVED REPORTS_CONCEPTUAL SITE MODEL

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CLEANUP AND ABATEMENT ORDER NO.R5-2002-0718 -5- CHEVRON 5-CHEVRON PRODUCTS COMPANY • BANTA BULK FUEL TERMINAL BANTA, SAN JOAQUIN COUNTY 6. Within 90 days of submittal of the final Site Assessment Report, submit a Site Conceptual Model with a profile of the site, characterizing the soil and.groundwater pollutants, and summarizing all finvestigative and remedial activities the Discharger has conducted. FEASIBILITY STUDY AND CLEANUP 7. By 4 April 2003, submit an evaluation report of the ISO-GEN remediation system, including the feasibility of continued operation or the proposal for alternative and/or additional remedial options. 8. Within 60 days of staff concurrence with the ISO-GEN evaluation report, submit a Feasibility Study/Remedial Options Evaluation Report for soil and groundwater remediation. The report shall contain the information in Attachment 4,which is made part of this Order. The proposed preferred alternative must meet the range of cleanup levels as described in the Basin Plan and Resolution No. 92-49. The Discharger shall attempt to clean up each constituent to background concentrations, or to the level that is technically and economically feasible and at least achieves the WQOs of the Basin Plan, listed in Finding 9. 9. Within 90 days of staff concurrence with the Feasibility Study/Remedial Options Evaluation Report for soil and groundwater remediation, submit a Cleanup Plan,which describes the approved alternative(s) for remediation and includes a time schedule to conduct the remediation activities. The approved time schedule to implement the remediation shall become a part of this Order. 10. Within 60 days of Executive Officer approval of the Cleanup Plan for groundwater remediation, ' commence remediation or installation of the remediation system. The Discharger shall notify staff a minimum of 72 hours prior to beginning field work. r11. According to the Executive Officer's approved time schedule for construction and implementation of the Cleanup an, P Plan, submit a report describing the status and results of the remedial work (Cleanup Implementation Report). The report shall also clearly show whether the installation of any remediation system is complete, and if not, give a schedule and proposed work plan for installation of the remaining remedial activities, including a proposed monitoring plan. GENERAL REQUIREMENTS 12. Continue to conduct monitoring of the existing wells and any additional wells in accordance with MRP No. 98-801 or any revised MRP is issued by the Executive Officer, 13. Continue to reimburse the Regional Board for reasonable costs (as.estimated by Regional Board staff at the beginning of each fiscal year) associated with oversight of the cleanup of this facility. Failure to do so shall be considered a violation of this Order. ' 14. Conduct work only after work plans are approved or conditionally approved by Regional Board staff. • 15. Include in all reports a cover letter from the Discharger stating concurrence or nonconcurrence with the conclusions and recommendations in the report.