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3.3 Laboratory Analysis of Soil Samples Soil samples selected for laboratory analysis will be submitted to GeoAnalytical Laboratories in Modesto, California for analysis of the following petroleum hydrocarbon constituents by the stated methodology: • Total Petroleum Hydrocarbons (TPH) - Gasoline, method 5030 LUFT. Detection limit: 2.5 mg/Kg. • Benzene, Toluene, Ethyl benzene, and Total Xylenes (BTEX) and MTBE, EPA method 8020. Detection limits: 5.0 µg/Kg BTEX, 10 µg/Kg MTBE. In the event that positive MTBE results are obtained, confirmation analysis of up to four of the samples will be performed using EPA method 8260. The detection limits stated are the minimum reportable levels specified by the analytical laboratory in accordance with the methodology used. The presence of high levels of constituents may raise detection limits above those stated. Sample specific detection limits will be reported on analytical laboratory data sheets contained in the PIER. 4.0 REPORTING Upon the receipt of all analytical data, AGS will prepare a Phase H Soil Investigation Report. The report will outline the soil drilling activities and present all analytical data obtained from the sampling and site characterization work. The report will also contain all field data relevant to the project as well as a description of the methodology employed during the investigation. The report will be prepared under the direction of, and signed and sealed by, a California Registered Geologist, pursuant to the State of California Business and Professional Code (Sections 6735, 7835, and 7835.1). 5.0 TIME SCHEDULE After approval of this work plan is obtained and the drilling permits have been issued, field work will be scheduled. It is anticipated that field activities can begin within 5 working days from the date of approval and will take one day to complete. American Geological Services,Inc. CA99DE-095 7