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I I September 1997 <br /> AGE-NC Project No. 97-0369 <br /> Page 3 of 5 <br /> sampler's initials. <br /> Grab ground water samples will be collected from each soil probe boring utilizing a Geoprobe water <br /> sampling assembly. For the sampling assembly, probe rods will be fitted with a retractable ground <br /> water screen and advanced to the total depth of each probe boring; the rods will then be pulled <br /> upward to allow ground water to flow into the screen. A bailer fitting will then be placed on the end <br /> of 3/8-inch diameter polyethylene tubing, inserted through the rod assembly into the exposed screen, <br /> through which water will be manually pumped. <br /> 32. EQUIPMENT DECONTAMINATION <br /> All probe rods and sampling tools used for sample collection will be thoroughly rinsed with clean <br /> water after washing with a solution of Alconos. <br /> 3.3. LABORATORY ANALYSIS <br /> Selected soil and/or grab ground water samples will be analyzed for total petroleum hydrocarbons <br /> quantified as gasoline and diesel (TPH-g and TPH-d, respectively), volatile aromatics (benzene, <br /> toluene, ethylbenzene and xylenes: BTE&X), methyl-tertiary butyl ether(MTBE), Methanol, Ethanol, <br /> Tertiary Butyl Alcohol (TBA), Di-isopropyl ether (DIPE), Ethyl Tertiary Butyl Ether (ETBE) and <br /> Tertiary Amyl Methyl Ether(TAME) in accordance with EPA methods 8015m, 8020/602 and 8260. <br /> Laboratory reports of both soil and ground water analyses, testing methods, laboratory quality <br /> assurance/quality control (QA/QC) reports and sample chain-of-custody documentation will he <br /> presented in a report with the findings and recommendations. <br /> 4.0. PROCEDURES <br /> 4.1. ADVANCEMENT OF SOIL PROBE BORINGS <br /> The following procedures will be performed for the installation of probiilgs: <br /> 1. Notify the PHS-EHD at least 2-working days prior to commencement of any work. <br /> 2. Mark probing locations at least 48 hours in advance for an Under,round Service Alert (USA) <br /> check of underground utilities or pipes. <br /> 3. Advance each soil probing using a van-mounted Geoprobe probing unit (direct push <br /> technology: DPT) equipped with 1.25-inch diameter rods. Each probing will be advanced to <br /> a minimum depth of 20-feet bsg. Proposed soil probe boring locations are depicted on Figure <br /> Advanced GcoErcmironmental,Lic. <br />