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17 April 2006 AGE-NC Project No. 04-1207 Page 8 of 9 4.3. GROUND WATER EXTRACTION (AQUIFER PUMPING) TEST A draw-down pilot test will be performed to evaluate feasibility of ground water extraction and radius of ground water influence from single well.A 1.5-inch diameter Grundfos submersible pump will be used to extract water from monitoring well MW-1 to induce a decline in the well's static water level. Solinst Leveloggers Model 3001 instruments will be deployed in observation wells MW-2,MW-3, and MW-4 and the extraction well MW-1 to obtain draw-down measurements at 1-minute intervals to measure difference in ground water levels before and during well pumping. The Leveloggers utilize ceramic pressure transducers to record water level data, which can be downloaded to a computer via an RS232 Optical infra-red data reader/port connected to a computer.The Levelogger data will be compared to water level measurements taken manually from the observation wells at timed intervals. Barometric measurements will be collected from a dedicated pressure transducer to determine the atmospheric influence on the pressure transducer values.From this data the results of the draw-down test will be adjusted to correct for any changes in atmospheric pressure. During the 8-hour pump test,the ground water pumping rate will be increased every 2 hours,starting at 2 gallons per minute (GPM), to achieve the optimum pumping rate for the greatest draw-down influence. If the decline of the ground water level is not satisfactory within the first 8 hours of the pilot test, additional testing will be performed to achieve sufficient ground water draw-down. The 24-hour pump test will be conducted at a constant rate determined by the results of the 8-hour pump test and the available storage or handling capacity for the produced ground water. Results of the 24-hour pilot test will be utilized to assess the feasibility of ground water extraction at the site. During the 8-hour pump test, ground water samples will be collected from the effluent line at the initiation of the test,approximately every 2 hours after pumping is initiated,and just before the end of the pump test. The samples will be handled as described in Section 3.5. above and will be analyzed by a DHS-certified laboratory for the same constituents listed in Section 3.2.All extracted ground water will be stored in a temporary,above-ground(Baker-type),storage tank.Subsequently, the purged ground water will characterized and be transported to a suitable waste disposal/recycling facility. 4.4. EQUIPMENT DECONTAMINATION/WASTE MANAGEMENT All sampling tools used for sample collection will be thoroughly rinsed with clean water after being Advanced GeoEnvironmental,Inc.