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08 February 2007 <br />AGE-NC Project No. 07-1508 <br />Page 3 of 4 <br />BTEX, DIPE, ETBE, MTBE, TAME, TBA, EDB, and 1,2-DCA in accordance with EPA <br />Method 8260B. <br />Laboratory reports for ground water analyses, testing methods, laboratory QA/QC reports, and <br />sample chain of custody documentation will be presented in a report with the findings and <br />recommendations. <br />2.4. REPORT PREPARATION <br />Upon completion of field work and receipt of final laboratory analyses, 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 may be included in the report. <br />3.0. FIELD PROCEDURES <br />All field procedures will be overseen by an AGE representative under the direction of a California <br />Professional Geologist. Procedures for the advancement of borings, soil sampling, equipment <br />decontamination and sample shipment are outlined below. <br />3.1. 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 />3.2. SOIL SAMPLE COLLECTION AND ANALYSIS <br />Soil samples will be collected from each boring; sampling interval will be based upon field <br />observations. Samples will be collected using a 1.5-inch Geoprobe soil sampling assembly loaded <br />with four six-inch brass sleeves. Upon sample retrieval, the ends of the second sleeve will be covered <br />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. Soils encountered in <br />Advanced GeoEnvironmental, Inc.