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.r <br /> 07 February 2006 <br /> AGE-NC Project No. 97-0360 <br /> Page 5 of 7 <br /> 3.3. LABORATORY ANALYSIS <br /> Ground water and selected soil samples from each probe boring will be submitted for laboratory <br /> analysis. Adequate soil samples will be analyzed to fill data gaps and provide a comprehensive <br /> delineation of deep soil contamination. The selected samples will be analyzed by a State of <br /> California Department of Health Services(DHS)-certified laboratory for the following constituents: <br /> • Total petroleum hydrocarbons quantified as diesel(TPH-d)in accordance with EPA Method <br /> 8015 Modified,and Benzene,toluene,ethylbenzene,and total xylenes(BTEX)in accordance <br /> with EPA Method 8020. <br /> Laboratory reports for soil and 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 report with findings and recommendations. Sampling procedures are described in <br /> Section 4.1. <br /> 3.4. REPORT PREPARATION <br /> Upon completion of field work and receipt of final laboratory analysis, a report will be prepared <br /> presenting the findings of the investigation. The report will include a description of the work <br /> performed and results of the sampling and analysis. Conclusions, applicable recommendations,and <br /> maps will be included in the report.The report will be in a format acceptable to the CVRWQCB,and <br /> will be reviewed and signed by a California Professional Geologist. <br /> 4.0. FIELD PROCEDURES <br /> All field procedures will be overseen by an AGE representative under the supervision of California <br /> Professional Geologist. Procedures for the advancement of borings, soil sampling, ground water <br /> sampling, equipment decontamination and sample shipment are outlined below. <br /> 4.1. PROBE BORING ADVANCEMENT <br /> Probe borings will be advanced using a van-mounted Geoprobe 5400 direct-push probing unit <br /> equipped with 1.25" probing rods. The Geoprobe advances soil probe borings using a hydraulic or <br /> pneumatic hammer to drive soil and ground water sampling tools to specified depths. <br /> Advanced GeoEnvironmental,Inc. <br />