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19 November 2007 <br /> AGE-NC Project No. 05-1306 <br /> Page 4 of 7 <br /> 2.6. PREPARATION OF REPORT OF FINDINGS <br /> Results of the well installations and soil-vapor intrusion study will be presented in a report of <br /> findings. The report will be in a format acceptable to the CVRWQCB and EIiD. and will be <br /> reviewed and signed by a California Professional Geologist. <br /> 3.0. FIELD PROCEDURES <br /> All field procedures will be overseen by an AGE representative under the supervision of a California <br /> Registered Geologist. Procedures for the well installation, well development, sampling, soil vapor <br /> probe boring advancement and sampling are described below. <br /> 3.1. DRILLING AND SOIL SAMPLING <br /> Two boreholes (MW10 and MW 11) will be drilled to maximum depths of 25 feet and 28 feet bsg, <br /> respectively, and one borehole (MW12) will be drilled to 35 feet bsg, utilizing a truck-mounted <br /> hollow-stem drill rig with 8.25-inch diameter hollow-stem augers. Cuttings and resinate generated <br /> �.. during drilling activities will be containerized in properly labeled Department of Transportation <br /> (DOT)-approved 55-gallon drums, and stored on-site in an area lacking public access. Disposal <br /> alternatives will be evaluated based on results of soil and water analyses. <br /> Relatively undisturbed soil samples will be collected from each boring at five-foot intervals with a <br /> California modified split-spoon sampler fitted with three 2-inch diameter,6-inch long stainless steel <br /> sleeves. Upon removal from the sampler, the sample sleeves will be separated with a knife. The <br /> exposed ends of the second sleeve will be covered with Teflon sheets, capped and sealed with tape. <br /> The soil in the remaining sleeves will be visually classified by an AGE geologist in accordance with <br /> the Unified Soil Classification System (USCS), and field screened for the presence of volatile <br /> organic compounds using an organic vapor meter(OVM)equipped with a photo ionization detector <br /> (PID). Soil sample descriptions and OVM readings will be recorded on a log for each boring. <br /> Following sample collection,each preserved sample sleeve will be labeled with the boring location, <br /> depth, time, date and sampler's initials. Appropriately sealed and labeled samples will be placed in <br /> a chilled container under ice and transported under chain-of-custody procedure to Kiffanalytical <br /> laboratory. <br /> Advanced GeoEnvironmental,Inc. <br />