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Ms. Vanessa Shumate October 2, 2024 <br /> <br /> <br />x Perform a utility locate utilizing ground penetrating radar/electromagnetic <br />(GPR/EM) equipment to ensure clearance of subsurface utilities at each boring <br />location. <br />x Coordination of August Mack field personnel and subcontractors. <br /> <br />Limited Site Investigation Activities: <br />x Advance five (5) borings (SB-1 through SB-5) on Site using a Geoprobe£ direct- <br />push sampling system for the purpose of collecting soil and groundwater <br />samples to further investigate the REC listed above. A map of the proposed <br />boring locations is provided in Attachment A. <br />x All borings will be advanced to depths of 30-feet below grade (ft bg) or to <br />groundwater, whichever is encountered first. <br />x Collect two (2+)-foot long soil samples continuously as the borings are advanced <br />and screen the samples for lithologic description and evidence of contamination <br />by headspace analysis using a photoionization detector (PID). <br />x Collect up to two (2) soil and one (1) groundwater samples at boring locations <br />SB-1 through SB-5 and submit the samples for Volatile Organic Compounds <br />(VOCs), Polycyclic Aromatic Hydrocarbons (PAHs), Polychlorinated Biphenyls <br />(PCBs), and/or Resource Conservation and Recovery Act (RCRA) 8 metals <br />analysis1. In general, the soil samples will be collected from the highest screened, <br />unsaturated, interval from each boring. If groundwater is not encountered, an <br />additional soil sample will be collected at the deepest interval. <br />x Each soil boring will be back-filled with soil cuttings and medium bentonite <br />chips from the base of the boring to approximately six (6)-inches below surface <br />grade and the appropriate surface completion will be installed to the surface. <br /> <br />Reporting <br />Following completion of the field activities and receipt of all laboratory results, a Final <br />Report will be prepared by August Mack documenting the activities performed. The <br />report will summarize and document the soil and groundwater sampling activities, <br />sampling locations, sampling rationale and provide analytical results along with our <br />findings regarding the site. Verbal results can be provided immediately upon receipt of <br />all laboratory analytical results. It is anticipated that the report will be completed and <br />delivered within 25 business days from receipt of the signed authorization to proceed. <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />1 *Groundwater samples analyzed for RCRA8 metals will be field filtered (dissolved). <br />      <br /><br />         <br />