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09 February 2004 <br /> AGE-NC Project No. 98-0452 <br /> Page 5 of 8 <br /> 3.6. PREPARATION OF REPORT OF FINDINGS <br /> Following well installation and initial monitoring of the newly installed wells, a report will be <br /> prepared which will include a description of work performed and the results of soil and groundwater <br /> sampling and analysis. Laboratory reports for soil and ground water analyses, testing methods, <br /> laboratory quality assurance/quality control (QA/QC) reports, and sample chain of custody <br /> documentation will be presented in the report. Conclusions and recommendations will also be <br /> included, if applicable. The report will be in a fonnat acceptable to the CVRWQCB, and will be <br /> reviewed and siLmed 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 advancement of pilot soil borings, well installation, well <br /> development, sampling and equipment decontamination are described below. <br /> 4.1. PILOT SOIL BORING <br /> Three pilot soil borings will be advanced at the site to a maximum depth of 25 feet bsg utilizing a <br /> truck-mounted hollow-stem drill rig with 8.25-inch diameter hollow-stem augers to install ground <br /> water monitoring wells. Soil samples will be collected from each soil boring at five-foot intervals. <br /> Relatively undisturbed soil samples will be collected in each of the borings 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 knife. The exposed ends of the second <br /> sleeve will be covered with Teflon sheets,capped and sealed with tape. Soils sampled in the borings <br /> will be visually classified by an AGE geologist in accordance with the Unified Soil Classification <br /> System(USCS).Additionally,soil samples will be field screened for the presence of volatile organic <br /> compounds using an organic vapor meter(OVM), equipped with a photo ionization detector(PID). <br /> 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 a DHS-certified <br /> laboratory. <br /> Advanced GeoEnvironmcntal,Inc. <br />