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Stockton Cineplex <br /> Subsurface Investigation <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), Total Extractable Petroleum Hydrocarbons (oil, diesel, <br /> kerosene), BTX&E (Benzene, Toluene, Xylene, and Ethyl Benzene) and MTBE <br /> along with the other aromatic and halogenated compounds by Method 8260B. The <br /> minimum detection limits used for each analyte will be .0005 mg/1 for BTX&E, <br /> 0.001 mg/l for the Oxygenated compounds (0.010 for tertiary-Butanol), and 0.05 <br /> mg/1 for gasoline & oils. Analysis will be conducted by GeoAnalytical <br /> Laboratories, Inc. in Modesto, California. <br /> Prepared By: <br /> W.02157 <br /> Michael J. Kl erdanz, REA, REHS " €xpim <br /> California Registered Environmental Assessor#02157 <br /> California Registered Environmental Health Specialist #4783 F <br /> 3 <br />