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08 March 2005 <br /> AGE-NC Project No. 02-0962 <br /> Page 6 of 9 <br /> 3.4. 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 /> analytes noted in Section 3.2. <br /> 3.5. PREPARATION OF REPORT OF FINDINGS <br /> Following each ground water monitoring event, a quarterly report will be prepared presenting the <br /> findings. Each report will include a description of work performed and the results of the ground <br /> water sampling and analysis. Laboratory reports for ground water analysis, testing methods, <br /> laboratory QA/QC reports, and sample chain of custody documentation will be presented in the <br /> quarterly report. Conclusions and recommendations will also be included,if applicable.The report <br /> will be in a format acceptable to the CVRWQCB, and will be reviewed and signed by a California <br /> Professional Geologist. <br /> 4.0. FIELD PROCEDURES <br /> All field procedures will be overseen by an AGE representative under the supervision of a California <br /> Professional Geologist. Procedures for the well installation, development, and sampling are <br /> described below. <br /> 4.1. PILOT SOIL BORING <br /> Utilizing a CME-75HT truck-mounted, hollow-stem drill rig equipped with 8.25-inch diameter <br /> hollow-stem augers,the three pilot soil borings will be advanced to a depth of 60 feet bsg.Relatively <br /> undisturbed soil samples will be collected from each soil boring at 5-foot intervals 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 PID readings will be recorded on a log for each boring. <br /> Advanced GeoEnvironmental,Inc. <br />