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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-ml <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.