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24 July 2002 <br /> AGE-NC Project No. 02-0948 <br /> Page 4of5 <br /> Selected soil samples from each probe boring will be submitted for laboratory analysis.The selected <br /> soil samples will be analyzed by a State of California Department of Health Services(DHS)-certified <br /> laboratory for the following constituents: <br /> • Total petroleum hydrocarbons as gasoline(TPH-g)in accordance with EPA Method 8015M <br /> (former gasoline UST sample); <br /> • Total petroleum hydrocarbons as hydraulic oil (TPH-ho) in accordance with EPA Method <br /> 8015M (hydraulic lift samples); <br /> • Total petroleum hydrocarbons as diesel and motor oil (TPH-d and TPH-mo) in accordance <br /> with EPA Method 8015M(former waste oil UST sample); <br /> • BTEX and MTBE in accordance with EPA Method 8020 (former UST and hydraulic lift <br /> samples); and <br /> • Volatile organic compounds by EPA Method 8260 (former UST samples). <br /> Laboratory reports for soil analyses, testing methods, laboratory quality assurance/quality control <br /> (QA/QC) reports, and sample chain of custody documentation will be presented in a report with <br /> findings and recommendations. <br /> 3.3. 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 /> Registered 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-inch probing rods.The Geoprobe advances soil probe borings using a hydraulic <br /> hammer to drive soil sampling tools to specified depths. <br /> Advanced GeoEnvironmental,Inc. <br />