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15 November 2005 <br /> AGE-NC Project No 04-1239 <br /> Page 3 of 5 <br /> be screened from approximately 55 feet to 65 feet bsg Depth of the screened interval in the deep <br /> monitoring wells may vary or be reduced overall according to hydrogeologic conditions encountered <br /> while drilling Following installation, each well will be developed to maximize water flow and <br /> minimize the amount of fine-grained sediment drawn into the well during pumping or bailing, and <br /> the top of each newly installed well casing (well head) will be surveyed to determine its elevation <br /> relative to mean sea level (MSL) <br /> 2 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 2 2 <br /> 25 PREPARATION OF REPORT OF FINDINGS <br /> • <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 /> Registered Geologist <br /> 3.0. 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 /> 3 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, two pilot soil borings will be advanced to a total depth of 40 feet bsg and two <br /> pilot soil borings will be advanced to a total depth of 65 feet bsg Relatively undisturbed soil samples <br /> Advanced GeoEnvironmental,Inc <br />