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Work Plan for Underground Storage Tank Removal- Unocal Service Station No. 5421, Stockton, California <br /> December 12, 1997 <br /> total oil and grease (O&G) by Standard Method 5520E&F, chlorinated hydrocarbons by EPA Method <br /> 8240, semivolatile organics by EPA Method 8270, and the metals cadmium, chromium, lead, nickel, <br /> and zinc by ICRP. Soil samples collected from beneath the hydraulic lifts will be analyzed for Total <br /> Petroleum Hydrocarbons as hydraulic oil (TPHho) by EPA Method 8015 (Modified) and BTEX. <br /> Reporting and Scheduling <br /> GSI anticipates initiating field activities in January 1998. After completion of the field work and <br /> laboratory analyses, the data will be evaluated and assembled into a report. Included in the report will <br /> be soil analytical results, chain-of-custody documentation, a summary of field observations, assessments, <br /> and conclusions. This report will be submitted to the SJCEHD within 6 to 8 weeks of receiving <br /> analytical results from the laboratory. <br /> PROJECT STAFF <br /> Mr. Stephen 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, Project Manager, will supervise and direct <br /> field and office operations. GSI employs a staff of geologist, engineers, and technicians who will assist <br /> with the project. <br /> If you have any questions or comments, please call us in our Dublin office at (510) 551-7555. <br /> Sincerely, <br /> GeoStrategies <br /> +Clde . Galantine RED <br /> GFQIp <br /> Project Geologist Q���Q`�E cggJ`�J'.► <br /> Na.5577 <br /> tephen J. Carter N <br /> Senior Geologist <br /> R.G. 5577 OF CAI—If <br /> Attachments: Figure 1. Vicinity Map <br /> Figure 2. Site Plan <br /> GeoStrategies Field Methods and Procedures <br /> GeoStrategies Site Safety Plan <br /> cc: Ed Ralston, Tosco Marketing Company <br /> Elizabeth Thayer, RWQCB - Central Valley Region <br /> 7743.01-1 3 <br />