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23 March 2006 <br /> AGE-NC Project No. 01-0887 <br /> Page 3 of 5 <br /> 2.3. MONITORING WELL INSTALLATION, DEVELOPMENT, & SURVEY <br /> Pilot soil borings MW-5 through MW-8 will be completed as single-level ground water monitoring <br /> wells screened from 30 feet to 35 feet bsg; pilot boring MW-9 will be completed as a single-level <br /> ground water monitoring well screened from 55 feet to 60 feet bsg.Following installation,each well <br /> will be developed to maximize water flow and minimize the amount of fine-grained sediment drawn <br /> into the well during pumping or bailing,and the top of each existing and newly installed well casing <br /> LM (well head) will be surveyed to determine its location and elevation relative to mean sea level. <br /> 2.4. GROUND WATER SAMPLING AND ANALYSIS <br /> Following the installation of the new monitoring wells, ground water monitoring and sampling <br /> activities will be conducted for all of the wells on a quarterly basis for a minimum of one year(four <br /> sampling events);monitoring activities will include recording depth to ground water measurements <br /> and collection of ground water samples for laboratory analysis by a DHS-certified laboratory for the <br /> LM analytes noted in Section 2.2. <br /> `' 3.0. FIELD PROCEDURES <br /> All field procedures will be overseen by an AGE representative under the supervision of a California <br /> `M Professional Geologist. Procedures for soil sampling and monitoring well installation and <br /> development are described below. <br /> Lo <br /> 3.1. MONITORING WELL PILOT SOIL BORING <br /> Utilizing a CME-75HT truck-mounted hollow-stem drill rig equipped with 8.25-inch diameter <br /> hollow-stem augers,pilot soil borings MW-5 through MW-8 will be advanced to a depth of 35 feet <br /> a. bsg; pilot boring MW-9 will be advanced to a depth of 60 feet bsg. Relatively undisturbed soil <br /> samples will be collected from each soil boring at 5-foot intervals, beginning at 5 feet bsg, using a <br /> California modified split-spoon sampler fitted with 2-inch diameter,6-inch long brass sleeves.Upon <br /> �- removal from the sampler, the sample sleeves will be separated with a knife. The exposed ends of <br /> the second sleeve will be covered with Teflon sheets, capped, and sealed with tape. Soils sampled <br /> in the borings will be visually classified by an AGE geologist in accordance with the Unified Soil <br /> Classification System(USCS).Additionally,soil samples will be field screened for the presence of <br /> volatile organic compounds using an Organic Vapor Meter(OVM)equipped with a photo-ionization <br /> detector (PID). Soil sample descriptions and OVM readings will be recorded on a log for each <br /> boring. <br /> 1.. Advanced GevEnvironmental,Inc. <br /> 1..+ <br />