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18 November 1999 <br /> - AGE-NC Project No. 97-0327 <br /> Page 6 of 9 <br /> 3.5. RECEPTOR SURVEY <br /> A receptor survey will be performed to locate potential ground water receptors within a 2,000-foot <br /> radius of the site. The results of the receptor survey will compliment ongoing assessment activities <br /> and assist in evaluating appropriate corrective action. <br /> 3.6. PREPARATION OF REPORT OF FINDINGS <br /> Following each quarterly ground water monitoring/sampling event, a quarterly report will be <br /> prepared presenting the findings and submitted to the PHS-EHD for review. The quarterly reports <br /> will include a description of work performed and the results of the soil/groundwater sampling and <br /> analysis. Laboratory reports for ground water analyses, testing methods, laboratory quality <br /> assurance/quality control (QA/QC) reports, and sample chain of custody documentation will be <br /> presented in a quarterly report. Conclusions and recommendations will also be included in the <br /> reports, if applicable. The report will be in a format acceptable to the PHS-EHD and the RWQCB, <br /> and 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 supervisicn of a California <br /> Registered Geologist. Procedures for the well installation, well development, soil sampli:sg, <br /> equipment decontamination, sample shipment and receptor survey procedures are described below. <br /> 4.1. DRILLING <br /> Soil borings will be advanced utilizing a truck-mounted, hollow-stem drill rig equipped with 8-inch <br /> diameter hollow-stem augers. Cuttings generated during drilling activities will be placed on and <br /> covered with plastic sheeting. Rinseate will be containerized in properly labeled D.O.T. approved <br /> 55-gallon steel drums, and stored on-site in an area lacking public access. Disposal altem-atives will <br /> be evaluated based on results of soil and water analysis. <br /> 4.2. SOIL SAMPLING <br /> Soil samples will be collected at five-foot intervals, beginning at a depth of 10 feet bsg, utilizing a <br /> California split-spoon sampler and brass sleeves. The sampler will be driven by dropping a 140- <br /> pound weight from a height of 30 inches (blow counts). The blow counts will be recorded on boring <br /> — Advanced CeoEmironmental,Inc. <br />