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I ' 11 February 2002 AGE-NC Project No 99-0559 ' Page 4 of 10 ' 03 October 2001, a pilot soil boring for monitoring well MW-8 was installed and the well was constructed 25 PILOT BORING SOIL CORE RECOVERY Soil was collected only from pilot soil boring MW5 and was continuously cored from 50 feet to 185 feet bsg using a split tube, 3-inch diameter core barrel The core was advance with the progression of the boring Selected soil samples were collected in clean, 2 x 6-inch brass sleeves All sampling equipment was washed in an Alconox solution and rinsed twice with water prior to each sampling run Both ends of the soil sleeve of each sample collected for laboratory analysis were covered with ITeflon sheets, capped and sealed with tape The samples were stored in a chilled container for potential analysis However no soil samples were analyzed 2 6G ROUND WATER MONITORING WELL COMPLETION The pilot soil borings were advanced utilizing a truck-mounted, hollow-stem drill ng and 8-inch diameter hollow-stem augers Cuttings generated dunng drilling were placed on plastic sheeting and covered Rlnsate was containenzed in properly labeled DOT-approved 55-gallon drums,and stored on-site in an area lacking public access The pilot borings were completed as CMT ground water monitoring wells utilizing 1 7-inch outer diameter casing perforated, sealed and screened by AGE The wells utilize continuous multi- chamber polyethylene tubing equipped with stainless steel screen wrapping the depth-specific Isampling ports After the advancement of the pilot bonngs, the prepared multi-level chamber tubing(well casings) were installed in the bonngs, to a total depth of 185 feet bsg The screen interval extended from approximately 175 to 185 feet bsg, 150 to 160 feet bsg, 125 to 135 feet bsg, 90 to100 feet bsg and 45 to 65 feet bsg A filter pack material consisting of pre-washed #3 Lonestar sand was added through the augers, covering the screen Interval to upper portion of selected screened interval After installation of the filter pack,a bentonite seal consisting of 1/4-inch pelf plug-coded bentonite pellets was placed between the filter pack intervals to minimize the potential for hydraulic influence from the other water bearing zones encountered in the monitoring well The bentonite seal was formed by pouring bentonite pellets into the annulus and allowing them to settle on the filter pack The bentonite pellets were allowed to hydrate for a minimum of one-half hour prior to the installation of the next filter pack The second filter pack was added from the base of the next screen interval to the upper portion of the screen interval After installation of the filter pack, bentonite Advanced GeoEnvironmentai,Inc