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Work Plan For Excavation of Soil @ Chevron Station #9-5575 <br />July 16, 1998 <br />hydrocarbon impact will be stockpiled onsite separately from other soil (backfill material) and <br />covered with plastic sheeting pending analytical data. Should analytical results indicate that the <br />compliance samples do not contain hydrocarbon impact, this task will not be implemented. <br />Task 2. Disposition of Stockpiled Soil <br />If pea gravel was used as the backfill around the USTs, it will be stockpiled separately onsite and <br />inspected for visible signs of liquid hydrocarbons. If liquid hydrocarbons are not present, <br />Chevron proposes to re -use the pea gravel as backfill material without further characterization. <br />Should the backfill material be sand or soil it will be stockpiled separately onsite and the <br />appropriate samples collected and analyzed for characterization. Depending on sample results <br />Chevron may elect to re -use the material onsite as backfill. If necessary, the sand or soil may <br />be aerated onsite and then re -used as backfill material. Should the soil be aerated onsite, the <br />appropriate permits will be obtained from the San Joaquin Unified Air Pollution Control District <br />(SJUAPCD). Concurrence will be obtained from SJCPHS prior to re -using any sand or soil as <br />backfill onsite. In the event the sand or soil backfill material is not re -used onsite, Chevron will <br />arrange for proper transportation to a licensed landfill for disposal. <br />PROJECT STAFF <br />Mr. Ricky L. Fears, a Registered Geologist in the State of California (R.G. No. 6728), will provide <br />technical oversight and review of the work. Mr. Greg A. Gurss, Senior Project Manager, will <br />supervise implementation of field and office operations. GR employs a staff of geologists, engineers, <br />and technicians who will assist with the project. <br />If you have questions, please call us in Sacramento at (916) 631-1300. <br />Sincerely, <br />Gettler-Ryan Inc. <br />Gre A. Gurss <br />Sr. Project Manager <br />No. 728 � <br />Ricky . Fears <br />Senior Geologist �r'�lf OF CA��E��� <br />R.G. No. 6728 <br />Attachments: Figure 2. Site Plan <br />GR Field Methods and Procedures <br />C1195775. WP I 2 346408.02 <br />