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29 July 1999 <br /> AGE-NC Project No. 98-0426 <br /> Page 3 of 6 <br /> Following installation, the wells will be developed in order to maximize water flow into the well <br /> casings and to minimize the amount of fine-grained sediment drawn into the wells during pumping <br /> or bailing. Procedures for well completion and development are presented in Sections 4.3. and 4.4., <br /> respectively. <br /> 3.4. GROUND WATER SAMPLE COLLECTION <br /> Following installation of the monitoring wells, quarterly ground water monitoring will be initiated. <br /> The depth to ground water will be measured for flow direction determination and the wells will be <br /> purged and sampled. Ground water sample collection procedures are described in Section 4.5. <br /> 3.5. LABORATORY ANALYSIS <br /> Selected soil and ground water samples will be transported to a California Department of Health <br /> Services (DHS)-certified laboratory and analyzed for total petroleum hydrocarbons quantified as <br /> gasoline (TPH-g) and volatile aromatics (benzene, toluene, ethylbenzene and xylenes; BTEX). <br /> 3.6. REPORT PREPARATION <br /> Upon completion of field work and receipt of the final laboratory analysis, a report will be prepared <br /> presenting the findings of the investigation,conclusions and applicable recommendations. The report <br /> will include a description of the work performed and the results of the sampling and analysis. <br /> Laboratory reports, testing methods, laboratory quality assurance/quality control (QA/QC) reports, <br /> and sample chain of custody documentation will be presented in the report. The report will be in a <br /> format acceptable to the PHS-EHD and the CVRWQCB, and will be reviewed and signed by a <br /> 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 soil sampling, monitoring well installation, well <br /> development, ground water sampling, equipment decontamination and sample analyses are outlined <br /> below. <br /> Advanced GeoEnvironmental,Inc. <br />