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Smoo v..1 <br /> 05 September 2002 <br /> AGE-NC Project No. 01-0887 <br /> Page 6 of 9 <br /> ground water monitoring event, a quarterly report will be prepared presenting the findings of the <br /> monitoring event. The reports will be in a format acceptable to the-EHD and the CVRWQCB, and <br /> will be reviewed and signed by a California Registered Geologist. <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 soil sampling, monitoring well installation, well <br /> development, ground water sampling, soil sampling, equipment decontamination and sample <br /> shipment are outlined below. <br /> 4.1. SOIL SAMPLING PROCEDURES <br /> Soil borings will be advanced using hollow-stern auger drilling techniques. Soil borings will be <br /> sampled at five-foot intervals from approximately five feet bgs to the total depth of the boring. <br /> Relatively undisturbed soil samples will be collected in each of the borings by using a California <br /> modified split-spoon sampler fitted with 2-inch diameter, 6-inch long brass sleeves. Upon removal <br /> from the sampler, the sample sleeves will be separated with a clean knife. The exposed ends of the <br /> first sleeve will be covered with Teflon sheets, capped and sealed with tape. Soils encountered in the <br /> 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). <br /> Following sample collection, each preserved sample sleeve will be labeled with the boring location, <br /> depth, time, date and the sample collector's initials. Appropriately sealed and labeled samples will <br /> be placed in a chilled container under ice and transported under chain-of-custody procedure to a <br /> DHS-certified laboratory. <br /> 4.2. MONITORING WELL INSTALLATION <br /> Following completion of drilling and sampling of the soil borings, 2-inch diameter Schedule 40 PVC <br /> 0.010-inch slotted well screen and casing will be installed into each of the boring. Based on the depth <br /> of the boring and the ground water table, a 15-foot length of well screen will be installed. It is <br /> anticipated that the well section will be placed across the observed water table with approximately <br /> 14 feet of screen section installed within the saturated interval and approximately one foot of screen <br /> section extending above the water table. <br /> Advanced GeoEnvironmentaI,Inc. <br />