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Work Plan for Additional Subsurface Assessment—Former Unocal Station#2859 <br /> March 6.2001 <br /> observation wells, measuring the response to the vapor extraction, will be monitored with magnehelic <br /> gauges and the data recorded manually. <br /> Task 7. Report Preparation <br /> Following receipt and analysis of all data,a report will be prepared which summarizes the procedures and <br /> findings associated with this investigation. This report will be submitted to Unocal for their use and <br /> distribution. <br /> OZONE NIICROSPARGING <br /> Ozone microsparging (C-Sparge) is being considered as a remedial option at the subject site. GR is <br /> currently conducting a C-Sparge feasibility test at Former Unocal service station 90187, located at 437 <br /> East Miner Avenue in Stockton, California. GR would like to postpone the initiation of C-Sparge <br /> activities at the subject site pending the completion and review of the Former Unocal #0187 test data, <br /> which is expected in June 2001. <br /> PROJECT STAFF <br /> Mr. Stephen J. Carter, a Registered Geologist in the State of California (R.G. No. 5577) will provide <br /> technical oversight and review of the work. Mr. Greg Gurss, Senior Project Manager, will supervise <br /> implementation of field and office operations. GR employs a staff of geologists, engineers, and <br /> technicians who will assist with the project. <br /> SCHEDULE <br /> GR will initiate permitting immediately upon regulatory approval. Upon receipt of all required access <br /> agreements and permits, the driller will be scheduled at the earliest available date. A report of the <br /> findings will be submitted approximately 60 days after completion of field work. <br /> 240079.04 g <br />