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weve <br /> 3.0 WORK PLAN, ADDITIONAL SITE INVESTIGATION <br /> The objective of the proposed scope of work is to further define the lateral extent of impacted soil <br /> and groundwater beneath the site. To achieve this objective, Damage Environmental proposes t <br /> install three additional groundwater table monitoring wells. <br /> 3.1 Project Planning and Permitting <br /> Prior to initiating fieldwork, a site-specific health and safety plea addendum will be prepared <br /> according to 29 CFR 1910.121 . The health and safety plan will include safety procedures, <br /> chemical hazard information, site safety officers, and a medical emergency location. <br /> To perform the proposed scope of work, drilling permits will be obtained from EHD. Since all <br /> three of the proposed groundwater monitoring wells are located on-site, neither encroachment <br /> permits nor private property access agreements will be required. <br /> At least two working days prior to the drilling field work; Ramage Environmental will notify EHD so <br /> that inspections can be scheduled. Underground Service Alert will also be notified so that <br /> member utilities can mark their underground services: <br /> 3.2 Groundwater Monitoring Well Installations <br /> To further investigate the distribution of impacted soil, define the lateral extent of impacted <br /> groundwater at the water table, delineate the stratigraphy of shallow subsurface soils, and expand <br /> the groundwater monitoring network at the site,three additional groundwater monitoring wells will <br /> be installed. As shown on Figure 2,the proposed well locations are located to the north; <br /> northeast and east of the former UISTs <br /> ;3.2.1 onitorin ell: onstructioi� [3eveo rnent and ry <br /> A C-57 <br /> licensed contactor will install all of the wells to total depths of approximately 60 feet bg <br /> using a truck-mounted drill rig, and -inch-diameter hollow stem augers. The wells will consist of <br /> 20 feet of two-inch diameter, Schedule 40, flash-threaded and machine-slotted (0.0213-inch) PVC <br /> well screen. Since groundwater is anticipated at approximately 50 feet bg , the well screen <br /> intervals will extend from approximately 46 to 66 feet bgs. Blank FVC casings will thread into the <br /> tops of the well screens and extend to the surface. <br /> 8 <br />