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Working To Restore Nature <br /> Addendum One to Remedial Action Plan March 1, 1993 <br /> Coca-Cola Former Distribution Facility, Stockton, California 54006.01 <br /> ' projected to be 3.6 lb TPHg/day and 0 23 lb benzene/day, respectively. These projected <br /> en ussions are within the regulatory emissions limits. The calculations Month 2 and Month <br /> ! 3 emissions are also included in Appendix B. <br /> Estimated Operation„Time <br /> ! The estimated operation time is based on the estimated amount of TPHg in the soll,P g s il, <br /> on the estimated TPHg extraction rates discussed above. RESNA's estimate of the amount <br /> ' of TPHg in the soil is less than USTEC's estimate. For permitting purposes, the more <br /> conservative USTEC TPHg weight was used to determine operation time, in the event that <br /> this additional operation time is needed Based on the USTEC quantity of TPHg in the soil <br /> and the mass extraction rates calculated in Appendix B, the estimated operation time of the <br /> vapor extraction system is about 12 to 15 months until extracted vapor concentrations are <br /> consistently nondetectable. If the amount of TPHg in the soil is less, then the clean up time <br /> ' will be correspondingly shorter. <br /> PROPOSED SCOPE OF WORK <br /> Based on the results of previous work at the site, RESNA proposes the following project <br /> Tasks 1 through 12 listed below to accomplish the engineering design, permitting, <br /> construction, and operation of a soil remediation system. The tasks are described in detail <br /> in the following subsections. <br />' Task 1 Vapor Extraction Test and Report (completed) <br /> Task 2. Addendum One to the Remedial Action Plan (this report) <br /> Task 3 Quarterly Groundwater Monitoring (resumed December 1992) <br /> Task 4 Construction Plans and Specifications <br /> Task 5. Permitting: Air, Building, Fire <br /> Task 6 Pre-Construction Phase <br /> Task 7. Construction <br /> Task 8. Construction Inspection and Management <br /> Task 9 Operating Instructions <br /> Task 10 System Startup and Startup Monitoring <br /> Task 11. System Startup Report <br /> Task 12. Operations, Maintenance, and Compliance Monitoring and Reporting <br />! 8 <br />