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(YVAT <br /> A S S O C I A T E S I N C <br /> hydrocarbons (HVOCsNOCs) by EPA Methods 801018020. The soil gas survey will include the <br /> collection of at least 8 soil gas samples. <br /> Confirmation Groundwater Sample Collection ' <br /> Following laboratory analysis of the collected soil gas samples, up to four additional soil borings <br /> will be advanced at the site to depths of approximately, 20 feet bis to collect groundwater <br /> confirmation samples. The placement of these borings will be based of the results of the soil gas <br /> samples. <br /> The groundwater samples will be collected by advancing extendable screen samplers into the <br /> saturated zone. When the desired sampling depth is reached, the sampler case is retracted a <br /> distance corresponding to the length of the screen. This disengages an expendable point and <br /> allows the slotted screen to extend into the open borehole. The water is then allowed to enter the <br /> sampler screen for collection. <br /> Groundwater samples will be subsequently collected with a bailer, peristaltic pump, or by <br /> oscillating TeflonO tubing with a check valve. <br /> Following sample collection, each open borehole will be grouted to the surface with neat cement. <br /> Groundwater samples will be either analyzed by the State-certified mobile on-site laboratory <br /> (time permitting) or by a State-certified laboratory off-site. <br /> Laboratory Analysis—Soil Groundwater <br /> Groundwater samples collected from the northeastern portion of the Property will be analyzed for <br /> TPHg, BTEX, and MTBE by EPA Methods modified 8015 and 8020, respectively. Samples <br /> collected from the southeastern borings will be analyzed for HVOCsNOCs by EPA Methods <br /> 801018020. Groundwater sample analysis will be ultimately based on results of the soil gas <br /> samples. j <br /> Following sample collection, each open borehole will be grouted to the surface with neat cement. <br /> Report Preparation <br /> Following the completion of field activities and the receipt of laboratory results, a report <br /> summarizing the findings of the work performed. <br /> W A 169621RBPORTSI W ORK_PLN.DOC 4 <br />