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13 October 2006 AGE-NC Project No. 04-1207 Page 3 of 4 activities will be conducted for all of the wells on a quarterly basis for a minimum of one year(four sampling events);monitoring activities will include recording depth to ground water measurements and collection of ground water samples for laboratory analysis by a DHS-certified laboratory for the analytes noted in Section 2.2.. 3.0. FIELD PROCEDURES All field procedures will be overseen by an AGE representative under the supervision of a California Professional Geologist. Procedures for the well installation, development, and sampling are described below. 3.1. PILOT SOIL BORING Utilizing a CME-75HT truck-mounted, hollow-stem drill rig equipped with 8.25-inch diameter hollow-stem augers, the pilot soil boring will be advanced to a depth of 65 feet bsg. Relatively undisturbed soil samples will be collected from the soil boring at 5-foot intervals using a California modified split-spoon sampler fitted with 2-inch diameter, 6-inch long brass sleeves. Upon removal from the sampler,the sample sleeves will be separated with a knife.The exposed ends of the second sleeve will be covered with Teflon sheets, capped, and sealed with tape. Following sample collection,each preserved sample sleeve will be labeled with the boring location,depth,time,date, and sampler's initials.Appropriately sealed and labeled samples will be placed in a chilled container and transported under chain of custody to a DHS-certified laboratory for analysis for the constituents listed in Section 2.2.. Soils sampled in the boring will be visually classified by an AGE geologist in accordance with the Unified Soil Classification System(USCS).Additionally,soil samples will be field screened for the presence of volatile organic compounds using an organic vapor meter (OVM), equipped with a photo-ionization detector(PID).Soil sample descriptions and PID readings will be recorded on a log for each boring. 3.2. WELL COMPLETION AND WELL ELEVATION SURVEY The pilot soil boring will be completed as a ground water monitoring well utilizing 2-inch diameter, Schedule 40 PVC blank well casing and 0.020-inch slotted well screen installed from 45 feet to 65 feet bsg. After installing the well casing in the pilot boring, a filter pack material consisting of pre-washed #3 Lonestar sand will be added through the augers from total depth to approximately 2 feet above the screened interval. Following placement of the filter pack, the well will be surged to assist in settling the filter pack. Additional sand will be added if settling occurs. Advanced GeoEnvironmental,Inc.