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McDowell&Davis Towing %/ <br /> Subsurface Soil Investigation <br /> Xylene, and Ethyl Benzene) and MTBE by method 8020 and the Oxygenated <br /> Compounds. The minimum detection limits used for each analyte will be .005 <br /> mg/kg for BTX&E, 0.01 mg/Kg for the Oxygenated compounds (0.1 mg/Kg for <br /> tertiary-Butanol), and 1.0 mg/Kg for gasoline. Analyses are to be conducted by <br /> GeoAnalytical Laboratories, Inc., in Modesto, California. <br /> All rinse water will be removed by the driller, V&W Drilling, Inc. Drill cuttings <br /> are not produced by this method. <br /> 2.3 Groundwater Sampling <br /> Groundwater is not expected to be encountered in this phase of work. If it is <br /> encountered and sampled a travel blank, provided by the laboratory, will <br /> accompany the sample vials from the time they are picked up from the lab to the <br /> time they are delivered to the lab. This travel blank will be listed on the Chain of <br /> Custody, but will be analyzed only if all samples contained the same contaminants. <br /> All sampling equipment, including the stainless steel Geoprobe® screen point, used <br /> by sampling personnel, will be disassembled and steam cleaned prior to <br /> commencement of sampling. These procedures will also be followed between each <br /> boring. <br /> The groundwater samples will be analyzed or extracted within 14 days according to <br /> their EPA methods. The samples shall be analyzed for Total Petroleum <br /> Hydrocarbons (gasoline), BTX&E (Benzene, Toluene, Xylene, and Ethyl Benzene) <br /> and MTBE by EPA Method 8020, and Oxygenated Compounds. The minimum <br /> detection limits used for each analyte will be .0005 mg/1 for BTX&E, 0.001 mg/1 <br /> for the Oxygenated compounds (0.010 for tertiary-Butanol), and 0.05 mg/1 for <br /> gasoline. Analysis will be conducted by GeoAnalytical Laboratories, Inc. in <br /> Modesto, California. <br /> Prepared By: <br /> ENYIAOM/k�A, <br /> `9 ,KL r' <br /> \.� e, <br /> Michael J. Kloberdanz, REHS <br /> California Registered Environmental Assessor#02157 <br /> California Registered Environmental Health Specialist#4783 <br /> 3 <br />