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i <br /> • 15 December 2000 <br /> AGE-NC Project No 95-0103 <br /> Page 2 of 4 <br /> Three ground water depth/elevation monitoring points should be installed ten feet east and south of <br /> vapor extraction well VE-6 and ten feet west of ground water monitoring well MW-4 <br /> Field test activities will consist of the following tasks <br /> • Permitting and pre-field work activities, <br /> • Probing and ground water depth elevation point installation, <br /> • Pump test and analysts, <br /> • Properly storing and disposing of produced ground water and <br /> • Preparation of a report of findings with recommendations <br /> 2 1 PERMITTING AND PRE-FIELD WORK ACTIVITIES <br /> Applicable site assessment permits will be obtained from the PHS-EHD In addition, an update to <br /> the health and safety plan presently on-file will be prepared in accordance with Occupational Safety <br /> and Health Guidance Manual for Hazardous Waste Site Activities (National Institute for <br /> Occupational Safety and Health Administration, U S Coast Guard and U S Environmental <br /> Protection Agency, 1985) Prior to mobilization, the ground water extraction well location will be <br /> clearly marked and a utility clearance obtained through Underground Service AIert <br /> 22 GROUND WATER DEPTHIELEVATION POINT INSTALLATION <br /> AGE proposes to advance three soil probe bonngs using direct push technology(DPT) in the vicinity <br /> of vapor extraction well VE-6 and VE-1 to install three temporary ground water depthleievation <br /> monitoring points(piezometers),consisting of one-inch diameter,0 01-inch slotted PVC well casing <br /> Proposed probe boring locations are illustrated in Figure 2 Ground water data will be collected from <br /> the three piezemeters utilizing pressure transducers or by direct measurement with an electric <br /> sounding device (Solmst) <br /> 23 PUMP TEST <br /> Two separate pump tests will be conducted to evaluate ground water extraction as an alternative <br /> ground water remediation option or an enhancement of the current soil vapor extraction system Each <br /> proposed test will consist of a 24-hour constant rate pump test The ground water pump (drawdown) <br /> pilot test to establish an optimal pumping rate The pump tests will utilize vapor extraction well VE- <br />