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3 E & E START Field Activities E & E START performed field sampling activities in accordance with the FSP dated August 2010 and approved by the U.S. EPA Quality Assurance Office on December 10, 2010. The approved FSP was assigned U.S. EPA Quality Assurance Program document control number BNFD0424SV2. Photographic documentation of the investigation is included in Appendix B. On January 18 through 21, 2011, the START conducted the sampling and data gathering activities at the subject property. A subcontracted drilling contractor, RSI Drilling, mobilized to the property on January 18, 2011 and conducted subsurface soil and groundwater sampling from 11 boring locations using direct push drilling methods. 3.1 Deviations from FSP The following deviations from the FSP (E & E 201Oa) resulted from changes made during the field investigation in response to field observations and conditions: • The FSP indicated that the groundwater soil samples would be collected from all 12 of the boring locations; however, two borings (EC2-03 and EC2-12)were dry when drilled to 56ft bgs, and only soil samples were collected at these locations. Boring EC2-11, which was planned to be located inside the fire station, was not drilled due to the drill rig being too large to fit inside the fire station garage and the fire station being too active with fire engines to disrupt their work. • The FSP indicated that soil vapor samples would be collected at two locations, EC2-11 and EC2-12. EC2-11 was located inside the fire station garage but due to the constant activity of trucks inside the garage this sample was not collected. EC2-11 was to be collected above the location of the former gasoline UST; however, a large fork lift was broken down above the former UST location and it could not be moved; therefore, no soil vapor sample was collected. • The FSP indicated that a duplicate groundwater sample (EC2-W-109) would be collected at the EC2-9 location. However, there was not enough groundwater to collect the duplicate sample at this location and it was not collected. 3.2 Sampling The following sections describe the sampling conducted from January 18 to 21, 2011. 3.2.1 Surface and Subsurface Soil Sampling START collected 11 surface soil samples, 44 subsurface soil samples, and six duplicate soil samples from 11 borehole locations. The borehole locations are shown on Figure 3 (Appendix A). After collection, all samples were placed in coolers and kept chilled on ice for storage and shipment to the analytical laboratories. All soil samples were collected in accordance with the 3-1