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14 September 2004 <br /> ! AGE-NC Project No 03-1100 <br /> Page 6 of 9 <br /> site A dedicated electrical meter panel will be installed that will connect directly to the IOS/SVE <br /> units <br /> The SVE/10S system and piping network will encompass the entire site (Figure 3) The SVE/1OS <br /> system,piping network and associated materials will be secured by a chain-linked, gated enclosure <br /> that encompasses the site The fence is six feet tall with privacy slats, barbed wire wrapped with <br /> razor wire along the top and a sliding gate for access on the western side of the property <br /> 3 3 SOIL VAPOR EXTRACTION MONITORING ACTIVITIES <br /> During the initial"start-up"period for the SVE system(approximately one week),the VES unit will <br /> be monitored daily using a Dwyer DS-200 flow sensor and a OVM The Dwyer DS-200 flow sensor <br /> will monitor operational parameters(air flow,combustion temperature,volume of processed vapor) <br /> to ensure optimal destruction of recovered hydrocarbon vapors The OVM will monitor the <br /> concentrations of hydrocarbon vapors from the influent and effluent ends of the VES unit to record <br /> before and after catalytic destruction <br /> i <br /> After start-up, the SVE unit will be monitored weekly using the OVM and Dwyer DS-200 flow <br /> sensor to ensure optimal destruction of recovered hydrocarbon vapors and to monitor cleanup <br /> progress In addition, vapor samples will be collected on a monthly basis from the influent and <br /> effluent ends of the VES utilizing the vacuum pump on a Model 580 organic vapor meter(Thermo <br /> Environmental Instruments Inc ), the samples will be collected in Tedlar bags, placed in a chilled <br /> container and transported under chain of custody procedures to a DHS-certified laboratory for <br /> analysis <br /> In addition, quarterly ground water monitoring and sampling will be conducted throughout the <br /> remediation period <br /> 3 4 SOIL VAPOR EXTRACTION SYSTEM MAINTENANCE <br /> The SVE system will be maintained on a weekly basis, according to manufacturers <br /> recommendations After stabilization, routine maintenance would represent the only periods of <br /> "down time" for the unit One to two times each month(assuming 24-hour operation), the unit will <br /> be shut down for routine maintenance procedures such as lubrication, oil changing, and system <br /> adjustments <br /> Advanced GcoEnvironmental,Inc <br />