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28 June 2007 <br /> AGE-NC Project No. 06-1481 <br /> Page 4 of 5 <br /> 3.3. GRAB GROUND WATER SAMPLE COLLECTION AND ANALYSIS <br /> Grab ground water sample will be collected from three of the seven borings (see Figure 1) during <br /> the boring process using a Geoprobe water sampling assembly. Samples will be collected into 40-m1 <br /> volatile organic analysis (VOA) vials and 1-liter amber bottles as appropriate for the required <br /> analyses, both without preservative; ground water sample collection procedures are presented in <br /> Section 4.1. Ground water samples maybe analyzed by a DHS-certified laboratory for the <br /> constituents listed in section 3.2. <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 /> with findings and recommendations. <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. <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 /> Probe borings 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 boring will be sampled at discreet five-foot intervals using a 1.125" Geoprobe soil sampling <br /> assembly loaded with four six-inch brass sleeves. Upon sample retrieval, the ends of the second <br /> Advanced GeoEnvironmental,Inc. <br />