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kl� 3 <br /> rllf <br /> 12 September 2008 <br /> AGE-NC Project No. 98-0440 } <br /> Page 3 of 6 `{ <br /> Ground water sample collection procedures are described in section 3.4. <br /> F <br /> Ground water samples will be analyzed by a California Department of Public Health-certified <br /> laboratory for the following constituents: <br />� Total petroleum hydrocarbons quantified as gasoline <br /> and diesel (TPH-g and TPH-d, <br /> respectively)by EPA Method 8015M; and <br /> • Benzene, toluene, ethylbenzene and xylene(BTEX)by EPA Method 8260B. <br /> �F <br /> 2.5. REPORT PREPARATION <br /> Upon completion of field work and receipt of final laboratory analysis, a report will be prepared <br /> presenting investigation findings. The report will include a description of the work performed and <br /> results of sampling and analysis. Conclusions, applicable recommendations, maps, and cross- <br /> sections will be included in the report. The report will be in a'!formai acceptable to the EHD and <br /> CVRWQCB, and will be reviewed and signed by a California Professional Geologist. <br /> 3.0. FIELD PROCEDURES <br /> yl <br /> All field procedures will be overseen by an AGE representative under the supervision of a California <br /> Professional Geologist.Procedures for the advancement of soil borings:�soil sampling,groundwater <br /> sampling,monitoring well installation and development,equipment decontamination, and sample <br /> shipment are outlined below. <br /> 3.1. SOIL SAMPLING PROCEDURES <br /> Soil borings will be advanced utilizing a truck-mounted drill rig equipped with 8-inch diameter <br /> hollow-stem augers. The hollow-stem auger drilling method is erfortled without the introduction <br /> of drilling fluids and allows for the collection of relatively undisturbed soil samples. During soil <br /> sampling and well installation, the augers remain in the ground, thus providing stability to the <br /> borehole. E <br /> t <br /> Sampling of the borings will be conducted through the hollow stem of the augers. Relatively <br /> undisturbed soil samples will be collected using a California Modified split-spoon sampler loaded <br /> with three 2-inch by 6-inch brass sleeves. The sampler will be driven by dropping a 140-pound <br /> hammer from a height of 30 inches. The sampler will be driven 18-inches or until refusal into the <br /> f <br /> Advanced GeoEnvironmenial,Inc. <br /> �r <br /> c <br /> ;r <br /> s ! <br />