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. 23 July 2002 <br /> AGE-NC Project No 97-0249 <br /> Page 6 of 8 <br /> Following well installation, each multi-level water well will be developed to maximize water flow <br /> into the well and minimize the amount of fine-grained sediment drawn into the well during pumping <br /> or bailing Procedures for well installation and development are presented in Sections 4 2 and 4 3, <br /> respectively <br /> 3 3 REPORT PREPARATION <br /> Results of the well installations will be presented in a Feasibility Report and/or PAR,If appropriate, <br /> interim ground water remediation maybe proposed The report will be in a format acceptable to the <br /> RWQCB (Appendix A guidelines), and will be reviewed and signed by a California Registered <br /> 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 well installations,well development and sample collection are <br /> described below <br /> 4 1 DRILLING AND SAMPLING <br /> Six soil bonngs for installation of multi-level ground water monitoring wells MW-7 through MW-12 <br /> will be advanced to depths of approximately 150 feet bsg utilizing 8-inch diameter hollow stem <br /> augers Soil cuttings generated during drilling activities will be placed on and covered with plastic <br /> sheeting, nnseate will be containenzed in properly labeled DOT-approved 55-gallon drums, and <br /> stored on-site in an area lacking public access Disposal alternatives for nnseate and stockpiled soil <br /> will be selected based on results of a laboratory analysis <br /> Soil samples will be collected at five-foot intervals, beginning at a depth of 5 feet bsg, using a <br /> California split-spoon sampler loaded with three 2-inch by 6-inch brass sleeves The sampler will <br /> be driven by dropping a 140-pound hammer from a height of 30 inches The number of blows <br /> required to advance the sampler in 6-inch increments will be recorded on the boring log Upon <br /> removal from the sampler, the ends of the lead sample sleeve will be covered with Teflon sheets, <br /> capped and sealed with tape Each preserved sample sleeve will be labeled with the boring location, <br /> depth, time and date Appropriately sealed and labeled samples will be placed on ice in a chilled <br /> container and transported under chain-of-custody procedure to a DHS-certified laboratory <br /> Advanced GeoEnvi ron mental,Inc <br />