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thick would be identified from which to collect depth-specific groundwater samples. Due <br /> to site conditions, profile and sampling depths would be limited to a maximum of <br /> approximately 220 feet. A BAT® sampling device would be used to collected up to 5 <br /> groundwater samples from each CPT profile. Due to the greater rod diameter required by <br /> the BAT® sampling device, it may be necessary to collect deep groundwater samples using <br /> a modified Hydropunch method if the appropriate sampling depths cannot be achieved due <br /> to increased skin friction and tip resistance. Up to 6 groundwater sampling locations are <br /> anticipated for the collection of groundwater samples. Gravel deposits which resist <br /> penetration or deformation of the sampling hole during repeated sampling depths will <br /> require installation of additional sampling borings adjacent to the original sampling <br /> locations. <br /> Each sample will be analyzed for HVOCs at a mobile lab. Depending on contaminant <br /> concentrations, additional investigation of verticar contaminant migration may be necessary. <br /> 2 <br />