Laserfiche WebLink
ti. + <br /> the collected soil samples may not have been analyzed within accepted sample hold times (14 <br /> days) based upon the report date of December 20, 1988, 15 days after the samples were <br /> collected. <br /> PROPOSED SCOPE OF WORK <br /> SMTH proposes the following scope of work to complete a limited environmental assessment <br /> for the purpose of obtaining site closure certification. <br /> Soil Sample Collection and Analyses <br /> SMTH will supervise the collection of four soil samples beneath the former underground fuel <br /> storage tank. The samples will be collected by Kvilhaug Well Drilling and Pump Co. Inc. <br /> (C57# 482390) using the direct push technology. Discrete soil samples will be collected <br /> beneath each end of the former tank location at depths of approximately 15 and 20 feet below <br /> grade. Samples will be collected using the Geoprobe 5400 Soil Probe Unit, a dual-rod <br /> sampling technique which will enable collection of undisturbed soil samples at the desired <br /> depth. Subsequent to sample collection, any void created by the Soil Probe Unit will be <br /> grouted to the surface with a neat cement grout. Any soil cuttings generated during sampling <br /> activities will be contained on site in Department of Transportation (DOT) approved drums <br /> pending analytical results of soil samples. <br /> All field work will be performed in accordance with the Site Safety Plan (Attachment 2). <br /> Samples will be collected through the inner rod into 718-inch brass tubes. The brass tubes will <br /> be immediately sealed at each end using Teflon tape and plastic end caps, labeled, and placed <br /> on ice. The samples will subsequently be transported under chain of custody documentation to <br /> Argon Laboratories in Ceres, California. The samples will be analyzed for total petroleum <br /> hydrocarbons as gasoline (TPHg) by EPA method 3550/8015 (modified), benzene, toluene, <br /> ethylbenzene, and xylenes (BTEX) by EPA method 355018020, and total lead by Atomic <br /> Adsorption. <br /> Summary Report Preparation <br /> Upon completion of field activities and receipt of laboratory analyses, SMTH will prepare a <br /> brief summary report for submittal to PHS/EHD. The summary report will detail field <br /> activities, present analytical results, and request site closure certification, if appropriate. <br /> N:1951121LR041295.doc <br />