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10 July 2007 <br /> AGE-NC Project No. 06-1524 <br /> Page 4 of 5 <br /> Laboratory reports for ground water analyses, testing methods, laboratory quality assurance/quality <br /> control (QA/QC) reports, and sample chain of custody documentation will be presented in a report. <br /> 3.4. REPORT PRE PARATION <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. <br /> 4.0. 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 advancement of soil boring, soil sampling,ground water <br /> sampling, equipment decontamination and sample shipment are outlined below. <br /> 4.1. PROBE BORING ADVANCEMENT <br /> The probe boring will be advanced using a van-mounted Geoprobe 5400 direct-push probing unit <br /> equipped with 1.25-inch probing rods. The Geoprobe advances soil probe borings using a hydraulic <br /> hammer to drive soil sampling tools to specified depths. <br /> 4.2. SOIL SAMPLING COLLECTION AND ANALYSIS <br /> Soil samples will be collected at discreet five-foot intervals using a 1.125" Gcoprobe soil sampling <br /> assembly loaded with four six-inch brass sleeves. Upon sample retrieval. the ends of the second <br /> sleeve will be covered with Teflon sheets, capped and sealed with tape. <br /> Appropriately sealed and labeled samples will be placed in a chilled container under ice and <br /> transported under chain-of-custody procedure to a DHS-certified laboratory.Each sample sleeve will <br /> be labeled with the boring designation, depth, time, date and sampler's initials. Additionally, soil <br /> sample duplicates will be field-screened for the presence of volatile organic compounds using an <br /> organic vapor meter (OVM), equipped with photo-ionization detector (PID). <br /> Advanced GeoEnvironmental,Inc. <br />