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tl 3 .0 WORK PLAN , ADDITIONAL SITE INVESTIGATION The objective of the proposed scope of work is to further define the lateral extent of impacted soil and groundwater along the south and east walls of the parking garage site, so that property transfer decisions can be better evaluated . To achieve this objective, Ramage Environmental proposes to advance direct-push soil borings for soil and groundwater sampling at three (3) on- site locations . The proposed boring locations are shown on Figure 3. 3. 1 Project Planning and Permitting Prior to initiating fieldwork, a site-specific health and safety plan addendum will be prepared according to 29 CFR 1910. 120. The health and safety plan addendum will include safety procedures for work to be performed , chemical hazard information , site safety officers , and a medical emergency location. To perform the proposed scope of work , drilling permits will be obtained from EHD. Since all of the drilling will be within the on-site parking garage , neither off-site private property access agreements nor encroachment permits will be required . At least two working days prior to field work, Ramage Environmental will notify EHD so that any inspections can be scheduled . Underground Service Alert will also be notified to perform utility clearance inspections. i 3.2 Soil and Groundwater Sampling and Analysis Soil and groundwater-grab samples will be collected using a 6600 Geoprobe® Direct-Push Technology rig (Geoprobe) . Each of the three soil borings will be advanced to the groundwater I. table, expected at a depth of approximately 30 feet bgs. From each soil boring , undisturbed soil samples will be collected at five-foot intervals into acetate liners using the Geoprobe sampler. In the field , a geologist will log all soil samples for hydrogeologic and lithologic characteristics according to the Unified Soil Classification System I' and screen each sample for any organic vapors using a photoionization detector (PID) . At the top of the groundwater-bearing zone in each soil boring , a push driven groundwater f sampling device wiltbe advanced an additional two feet into the formation . When the desired [ depth is reached , the sampler will be pulled up approximately four feet to expose the open borehole to an inner core well screen. Groundwater samples will be collected from each of the l borings using polyethylene tubing and a check valve. 9 Y i_