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28 February 2006 <br /> AGE-NC Project No. 06-1390 <br /> Page 4 of 6 <br /> 3.3. GRAB GROUND WATER SAMPLE COLLECTION AND ANALYSIS <br /> A single grab ground water sample will be collected from the boring during the boring process using <br /> a Geoprobe water sampling assembly. The sample will be collected into 40-m1 volatile organic <br /> analysis(VOA)vials with 0.5 ml 18%hydrochloric acid as a sample preservative and 1-liter amber <br /> bottles as appropriate for the required analyses; ground water sample collection procedures are <br /> presented in Section 4.1. <br /> The grab ground water sample may be submitted for laboratory analysis. The sample will be <br /> analyzed by a DHS-certified laboratory for the following constituents: <br /> • Total petroleum hydrocarbons quantified as gasoline (TPH-g) in accordance with EPA <br /> Method 8015M; <br /> • BTEX, MTBE, TBA, DIPE, ETBE, TAME, 1,2-DCA and EDB in accordance with EPA <br /> Method 8260. <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 /> The probe boring will be advanced using a van-mounted Geoprobe 5400 direct-push probing unit <br /> Advanced GeoEnvironmentel,Inc. <br />