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• split spoon sampler containing brass tubes All sampling equipment was - <br /> decontaminated before use by using a triple rinse procedure described below <br /> Water and detergent wash, <br /> • Water rinse, <br /> * Deionized water, final rinse <br /> Samples tubes used to collect soil samples were provided by the state certified <br /> analytical lab. Brass sample tubes were sealed using aluminum foil, capped, taped, <br /> sealed, labelled and placed m individual zap-lock bags The samples were then <br /> placed in coolers containing frozen blue ice for transport under chain-of-custody <br /> procedures to the Canonie Environmental Services Laboratory of Stockton at the <br /> end of the working day. One sample (HA-2B) was collected on March 28, 1991. under <br /> the same methods as described above but was transported under chain-of-custody to <br /> BACE Analytical and Field Services of Windsor for analysis <br /> the samples were analyzed for the following <br /> • Total Volatile Hydrocarbons (TPH-gasoline, LUFT Method), <br /> • Total Extractable Hydrocarbons (TPH-diesel, LUFr Method), <br /> • BTEX (EPA 8020) <br /> One soil sample from each boring, well and piezometer location was analyzed <br /> Drill cuttings from placement of the boring were stored on-site separately from, soils <br /> removed from the excavation in January 1990 Decontamination water has been <br /> placed in sealed drums and left on-site until appropriate remediation is initiated <br /> 4.0 RESULTS OF SOIL AND GROUNDWATER INVESTIGATION <br /> 4.1 Soil Analytical Results <br /> The analytical results of the soil are presented in Table 2 Copies of the analytical <br /> data sheets are provided in Appendix E. The locations of these samples and the soil <br /> results are shown in Figure 4 <br /> All soil samples were analyzed for the presence of TPH as diesel, gas and BTEX Two <br /> of the six (NIW-1, B-1) soil samples were reported as nondetectable hydrocarbons for <br /> TPH as gas, TPH as diesel and BTEX Analysis of the soil samples obtained at the <br /> locations of the piezometers (P-1 and P-2) reported low levels of hydrocarbons <br /> Hydrocarbons as diesel was reported at 16 mg/Kg in soil sample P-1 and all other <br /> analyses as N D Hydrocarbons as gas were reported at a level of 14 mg/Kg m soil <br /> sample P-2 and all other analyses as N D The samples obtained from the central <br /> location of the tank pit showed hydrocarbon as diesel of 50 mg/Kg in HA-1 and 680 <br /> 8 <br /> BRU[VSIIVG ASSOCIATES, INC 40��®`� <br /> P <br />