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06 October 2006 AGE-NC Project No. 04-1207 Page 6 of 9 install a 1.75-inch diameter Grundfos Redi-flo pump inside the 2-inch diameter well.The Grundfos pump will be designed to operate continuously at a low flow rate of approximately 2.5 to 3 gallons per minute (GPM). Utilizing the above-referenced Grundfos submersible pump,ground water will be extracted from the 2-inch diameter extraction well and routed through plastic tubing to an on-site 21,000-gallon,steel above ground storage tank(holding tank).Extracted water will be pumped from the tank on a weekly basis and disposed. 3.3.1. Dedicated Pressure Transducers AGE proposes to install dedicated Levelogger pressure transducers(model L)in the 2-inch diameter ground water extraction well and in the surrounding ground water monitoring wells(MW-2 through MW-4)during the first month of interim remediation to monitor the influence of the draw-down at the site. Data obtained from the transducers will be useful for monitoring and maximizing the capture zone of the extraction well. 3.4. SOIL VAPOR EXTRACTION/GROUND WATER EXTRACTION START-UP PERIOD After installation of the SVE system, AGE will initiate a start-up period(first week of operation). Influent and effluent vapor concentrations will be collected on a daily basis using a photo-ionization detector (PID) to ensure optimal destruction of recovered hydrocarbon vapors. In addition, operational parameters(air flow,combustion temperature,volume ofprocessed vapor,oxygen level, and the lower explosive limits (%LEL)will be monitored daily during the start-up period. During the pump and treat start-up period(first 2 weeks of operation), ground water influent of the treatment system, depth to ground water measurements, and operational parameters(ground water flow meters, fluid level sensors, total flow indicators) will be monitored daily to ensure optimal removal of dissolved hydrocarbons. 3.5. MONITORING AND MAINTENANCE ACTIVITIES The SVE unit will be monitored weekly for organic vapor (OV) using a PID to ensure optimal destruction of recovered hydrocarbon vapor, and to monitor cleanup progress; initially, OV measurements will be collected on a more frequent basis until the system has stabilized. PID measurements will be recorded from the influent and effluent vapor streams of the SVE unit.Vapor samples from the SVE influent and effluent streams will be collected in Tedlar bags on a monthly Advanced GeoEnvironmental,Inc.