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S <br /> r `�+ KLEINFELDER <br /> SCOPE OF WORK <br /> Kleinfelder has prepared the following scope of work to further assess the presence of soil and <br /> groundwater contamination in the former UST area of the site. The services proposed for the <br /> additional assessment consist of four tasks: <br /> 1) Drilling Permit and Workplan Submittal <br /> 2) Temporary Monitoring Well Installation <br /> 3) Sample Collection, Handling, and Analyses <br /> 4) Analysis of Data and Report Preparation <br /> Task 1 - Drilling Permit and Workplan Submittal <br /> Kleinfelder will install one temporary monitoring well at the subject site in a boring advanced by <br /> truck mounted drill rig. The San Joaquin County Public Health Services Department <br /> Environmental Health Division (PHS/EHD) requires a workplan and permit application for the <br /> installation of temporary monitoring wells. <br /> Task 2 -Temporary Monitoring Well Installation <br /> A singl temporary monitoring well will be installed within the estimated former UST location at <br /> M.U.S.D. to a total depth o approximately 17 feet. Approximate first groundwater is currently <br /> estimated to be at a depth o 12 fee below the ground surface (bgs) based on correspondence <br /> from M.U.S.D.. The temporary monitoring well will be installed using a truck-mounted drill rig <br /> f equipped with 8-inch hollow stem augers. The borings will be drilled 1 ampled <br /> following the protocol described in Attachment B. A two-inch diamete tempora well will be <br />' constructed in the boring, as described in Attachment B, Section B-3.1. The wells will be <br /> screened from a depth of approximately 7 to 17 feet bsg. . <br /> s <br /> a <br /> Soil cuttings will be placed on and covered by visqueen. Water generated while drilling will be <br /> contained in 55-gallon drums and left on site. Water generated during steam cleaning of auger <br /> and/or equipment and sampling of the temporary well will also be similarly contained. After the <br />+ temporary well is sampled, the casing will be removed and the boring will be grouted. <br /> 1 <br /> S 0 ' <br /> 20-YP8-161/2018P[79 Page A-2 <br /> © 1998, Kleinfelder, Inc. lune 22, 1998.- <br /> i <br />