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Ms. Diane Frantzich <br /> Bureau of Fire Prevention <br /> 19 October 1990 <br /> Page 2 <br /> F SOIL/WATER SAMPLING AND DECONTAMINATION PROCEDURES <br /> The type and number of samples to be collected will depend on whether or not water is <br /> 1 <br /> present in the excavation and whether contamination is discovered. <br /> If water is not present in the tank excavation, soil samples will be collected from native soil <br /> 3 at each end of the UST at a depth of 2 to 4 feet. Soil samples will be taken from the bucket <br /> r . of the backhoe, representing the native soil under the tank. <br /> If water is present in the tank excavations, the water will be analyzed in accordance with <br /> the proposed analytical protocol listed below, according to current Regional Water Quality �. <br /> Control Board recommendations. <br /> E Decontamination procedures for sampling equipment will involve washing the <br /> 2-inch x 6-inch brass tubes in Liqui-Nox before driving the tubes into the soil. The soil <br /> samples will be capped with Teflon,plastic end caps, and logged on a chain-of-custody <br /> r, form. The samples will be stored on Blue Ice and taken to American Environmental <br /> Laboratories Corporation (State Certification No. 210) for analyses. <br /> The samples collected from the gasoline tank excavation will be analyzed for Total <br /> ;k F Petroleum Hydrocarbon—Gasoline or Diesel fraction (TPH-G or TPH-D), Benzene, <br /> Toluene, Xylenes, and Ethylbenzene (BTXE), Tetraethyl/Tetramethyl Lead (TEL), and <br /> Total Extractable Petroleum Hydrocarbon (TEPH). The samples collected from the diesel <br /> tank extraction will be analyzed for TPH-D and BTXE. <br /> s <br /> PROPOSED ANALYTICAL PROTOCOL PROPOSED ANALYPICAL PROTOCOL <br /> _ <br /> { SOIL WATER <br /> GLEN BRIAR ESTATE GLENBRIAR ESTATE <br /> -^ Tracy,California Tracy,California <br /> Analytical Analytical <br /> Analvsis Container Preservation Method Analvsis Container Preservation Method <br /> r TPH-Ga Brass Tube 4°C EPA.m-8015 TPH-Ga 1 liter°lass 4°C EPA m 8015 <br /> gT7zEb Brass 1-u0c 4°C EPA 8020 BTXEb 40 ml glass 4*C EPA 6M <br /> TELA Brass Tube 4°C EPA AA TELA Miter <br /> amberalass 4°C EPAAA <br /> l 'Dad Miter <br /> amber lass 4"C EPA m-8010 <br /> a Total Petroleum Hydrocarbons—Diesel and Gasoline Fractions <br /> b Benzene;Toluene,Xylene and Ethylbenzene <br /> C Tetraethyl/Tetramethyl Lead(Organic Lead) <br /> j d Ethylene Dibromide <br /> a <br /> 4 <br /> F <br /> i . <br />