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i 5 ' I 18 November 2005 '. AGE-NC Project No 02-0962 , ' Page 3 of 7 i 2 1 4 Monitoring Well Development On 02 August 2005, monitoring wells MW-4 through MW-6 were developed utilizing a Waterra ' inertia pump and-steel bailer Ground water was purged-from each monitoring well until it was - visually sediment-free, approximately 26 gallons of water were removed from each well Purged ground water was containerized in properly labeled, DOT-approved 55-gallon'drums and stored Ion-site Monitoring well development field logs are provided in Appendix C ' 2 15 Well Head Survey On 15 August 2005,a California state-licensed surveying engineer from Morrow Surveying surveyed ' the location and elevation of monitoring wells MW-4 through MW-6,the global positioning system (GPS) location was surveyed to the nearest 0 1-foot relative to coordinate datum NAD 83 (1986), and the elevation at the notch in the top of the well casing was surveyed to the nearest 0 01-foot ' relative to NAVD 88 from GPS observations The elevations of wells MW-4 through MW-6 were , determined to be 11 90 feet, 12 05 feet, and 11 99 feet above mean sea level (MSL), respectively The results of the monitoring well survey are recorded in Table I The surveying report is presented 10 in Appendix D I ' 2 2 QUARTERLY WELL MONITORING ' The third quarter ground water monitoring event was performed on 01 September 2005, ground water monitoring was performed on monitoring wells MW-1 through MW-6 2 2 1 Well Monitoring and Evacuation ' On 01 September 2005, a Solinst water level meter was used to measure the depth to ground water in monitoring wells MW-1 through MW-6 relative to the tops of the well casings After the depth to ground water measurements,were collected, casing water in each monitoring well was evacuated ' ' using a Waterra inertia pump and dedicated tubing Approximately 6 to 7 5 gallons of water were evacuated from each of the monitoring wells, equivalent to three casing water volumes per well Temperature, pH, and conductivity of the purged water were measured for stabilization at regular ! intervals using an Oaktonwater analyzer Field data logs are provided in Appendix E Purged water was containerized in properly labeled, DOT-approved 55-gallon drums and stored on-site pending proper disposal ' Advanced GeoEnvironmental,Inc II ,