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2.2 Scope of Work <br /> It will be the primary goal of this soil boring and hydr punch routine to: <br /> 1.) Fully define the extent of the soil and groundwater contamination plume. <br /> 2.) Define the most appropriate means of remedia ing the contamination from these zones, as <br /> deemed necessary. <br /> 2.2.1 SOIL BORINGS <br /> The soil borings will be supervised by Del-Tech Geotechnical and Geological Technics, Inc.. <br /> All of the drilling activities will be completed by V&W Drilling of Rio Vista, CA. (C57 <br /> #65$786). A truck mounted hollow stern drilling rig will be used to complete the soil borings <br /> and hydropunch sampling. Discrete soil samples w 1 be collected in five foot intervals from <br /> each soil boring location. The subsurface geologic investigation and logging of the soil borings <br /> will be completed bii Michael Niemi f Geological T hnics. <br /> Drill cuttings produced from the borehole will be placed on 6 mil plastic, covered and stored on <br /> site until analytical results have been received. Soil icreening with a oto ionization detector <br /> will be performed to monitor the presence of volatile aromatics during the auguring of the soil <br /> borings and a discrete soil sample will be collected every five vertical feet for geological <br /> classification and characteristics. The soil samples will be described using the Unified Soils <br /> Classification System. Laboratory quantification will be conducted on samples at the interval <br /> showing substantial signs of petroleum hydrocarbons. The specific samples which will be <br /> submitted to the laboratory will be determined by the on site supervising geologist. <br /> Grab water samples will be collected through a hydro 3unch sampling device attached to the sold <br /> stem rods of the hollow stem auger. It is our experience in the past, that a representative water <br /> sample can be collected in this manner to assist in the definition of a groundwater contamination <br /> plume, if one is present. The overall depth of eac soil boring will be advanced to a depth <br /> necessary to define the vertical extent of the contamiriation. At least two consecutive five foot. <br /> interval soil samples will be collected to confirm the lield screening observation . The final and <br /> exact depth and or locations o h of the soil borings will be determined in the field by the on <br /> ogist. Soil boring placements will be based on the field observations and field screening <br /> techniques that will be conducted on the samples collected. <br /> A detailed soil boring log with the screened interval kwation will be completed for each sample <br /> point installed. <br /> mu <br /> of two discrete soil samples will be collected from each of the soil borings from <br /> ap nate horizons representing the vertical geologic strata and by field indications of <br /> TED PETERS TRUCKING 1 MenECA WORKPLAN <br /> 3 <br />