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1�1 <br /> WWI <br /> 6-0 15 April 2003 <br /> AGE-NC Project No. 02-0950 <br /> Page 6 of 10 <br /> V <br /> 4.0. 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 advancement of the soil boring, monitoring well pilot <br /> borings, soil sampling, ground water sampling, monitoring well completion, equipment <br /> decontamination and sample shipment are outlined below. <br /> V <br /> 4.1. SOIL BORING ADVANCEMENT <br /> The soil borings will be advanced using a truck-mounted,hollow stem drill rig equipped with 6-inch <br /> diameter hollow-stem augers to further assess for petroleum hydrocarbon-impacted soil and ground <br /> water beneath the site.Cuttings and rinseate generated during drilling activities will be containerized <br /> in properly labeled DOT-approved 55-gallon drums, and stored on-site in an area lacking public <br /> access. Disposal alternatives will be evaluated based on results of soil and water analysis <br /> 4.1.1. Soil Sampling Procedures <br /> Soil samples will be collected from the soil boring at five-foot intervals beginning at a depth of 5 feet <br /> bsg using a California modified split-spoon sampler fitted with three 2-inch diameter, 6-inch long <br /> brass sleeves.Following sample collection,the exposed ends of the leading or other selected sleeve <br /> will be labeled with the boring location, depth, time, date and sampler's initials; the appropriately <br /> sealed and labeled samples will be placed under ice in a chilled container and will be transported <br /> under chain-of-custody to a DHS-certified laboratory for analysis. The soil in the two remaining <br /> sleeves will be visually classified by an AGE geologist in accordance with the Unified Soil <br /> Classification System (USCS) and field-screened for the presence of volatile organic compounds <br /> using an OVM. <br /> 4.1.2. In-situ Ground Water Sampling Procedures <br /> For the collection of grab ground water samples at first water,the soil boring will be advanced to the <br /> top of the ground water table as identified by collection of a saturated soil sample. Grab ground <br /> water samples will be collected using a water sampling assembly fitted with a pre-cleaned,one-inch <br /> diameter 0.01-slotted temporary well screen. <br /> w <br /> For collection of grab ground water samples at total depth, a hammer-driven, hydropunch water <br /> sampling device will be inserted through the interior of the augers and advanced approximately four <br /> Advanced GeoEnvironmental,Inc. <br /> u <br />