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Results <br /> 3.4 Site Investigation <br /> 3.1 Trenching <br /> Within the sidewalls of the trenches pea gravel was observed to be distributed from <br /> ' approximately 0.5 meters (1.5 feet) BGS at the wes ern end to 1.3 meters (4.5 feet) BGS at the <br /> eastern end, where trenches were excavated to 1.7 meters (5.5 feet) BGS in order to expose <br /> sub-gravel native soils. Water was observed to pool in the deeper end of the trench excavation. <br /> i The presence of leach lines was confirmed by visual inspection with Ms. Margaret_Legoria of the <br /> SJCEHD during excavation in the area of the former leachfield. The leach lines were <br /> encountered at a depth of approximately 1.2 meters (4 feet) BGS. The leach lines were observed <br /> ' to be free of sludge accumulations or related residual products. <br /> f- Additional excavation was performed in consultatio with Ms!Legoria to locate the distribution <br /> s <br /> box line to obtain a soil sample. Investigations indicated the presence of pea gravel to depths of <br /> 1.8 meters (6 feet) to 2.1 meters (7 feet) BGS in the area of the "L"joint of this line. Due to the <br /> presence of the pea gravel a sample was not collected. <br /> 3.2 Laboratory Results <br /> The soil samples collected during this site investigation were not reported by the laboratory to <br /> contain the following constituents at concentrations in excess of the respective analytical method <br /> reporting limits: <br /> • TPHg and TPHd <br /> • Benzene, toluene, ethylbenzene, and xylenes <br /> �y <br /> • VOCs and Fuel Oxygenate Compound <br /> • SVOCs <br /> �- Chlorinated hydrocarbons <br /> • Ethanol and methanol <br /> • Organochlorine pesticides <br /> 3 � <br /> N:4sacOPT0034Pg183035444.3ac.doc 3.1 <br /> r <br />