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ARCADIS July 30, 2013 <br /> using the Unified Soil Classification System (USCS)as directed by an ARCADIS <br /> professional geologist. A photoionization detector(PID)will be used to screen the <br /> encountered soil for the presence of volatile organic compounds (VOCs). Each <br /> boring will be advanced approximately 20-feet below ground surface to allow for <br /> groundwater sample collection. <br /> Sample Collection and Analysis <br /> Soil samples will be collected from borings where PID detections or visual <br /> observations indicate the presence of petroleum hydrocarbon impacts for possible <br /> laboratory analysis in acetate sample sleeves. After collection, the ends of the <br /> sleeves containing soil selected for laboratory analysis will be covered with <br /> Teflon-lined plastic caps. The samples will then be labeled, logged on chain-of- <br /> custody forms, and placed in an ice-chilled cooler for transportation to a California <br /> state-certified laboratory, under standard chain-of-custody protocols. <br /> Grab groundwater samples will be collected from each boring where PID detections <br /> of visual observations indicate the presence of petroleum hydrocarbon impacts for <br /> possible laboratory analysis. The groundwater samples will be collected by lowering <br /> a small-diameter(0.75-inch), stainless steel or Teflon bailer down the drill casing <br /> from the surface and carefully decanting the sampled water into appropriate <br /> laboratory supplied containers. The samples will be labeled, logged on chain-of- <br /> custody forms, and placed in an ice-chilled cooler for transportation to a California <br /> state-certified laboratory, under standard chain-of-custody protocols. <br /> Collected soil and groundwater samples will be analyzed for the following <br /> constituents: <br /> • Total petroleum hydrocarbons (TPH)as Diesel Range Organics (DRO) using <br /> EPA Method 801513; <br /> • VOCs using EPA Method 8260; and <br /> • Semi-volatile organic compounds (SVOCs) using EPA Method 8270 <br /> Upon completion of sampling activities, each soil boring will be abandoned with <br /> cement/bentonite grout in accordance with SJCEHD guidelines. <br /> Schedule and Reporting <br /> It is anticipated that approximately one to two weeks will be required to coordinate <br /> subcontractors, and obtain drilling permits after receiving approval from the SJCEHD. <br /> Page: <br /> GUPUKi�R*MWns .Pnuseinvmn UPSMME1wa.ax 4/5 <br />