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Site Background Information: Cancun Restaurant <br /> Page 4 of 4 <br /> 10 soil samples at concentrations ranging between 43 ppmv (50 feet bsg)and 1,535 ppmv <br /> (35 feet bsg). <br /> In boring B5, southwest of the former UST area, brown gravelly to silty clay was <br /> encountered between 5 feet and 10 feet bsg; greyish brown silty clay was encountered <br /> between 10 feet and 15 feet bsg; greyish brown sandy silt was encountered between 15 <br /> feet and 17 feet bsg; greyish-brown silty claywas encountered between 17 feet and 19 feet <br /> bsg; grey silt was encountered between 19 feet and 27 feet bsg; brown sandy silt was <br /> encountered between 27 feet and 29 feet bsg; brown to greyish brown silts were <br /> encountered between 29 feet and 44 feet bsg; grey silty clays were encountered between <br /> 44 feet and 53 feet bsg; grey silt was encountered between 53 feet and 57 feet bsg; and <br /> there was no recovery of the sample at 60 feet bsg, however remnants of a medium grain, <br /> poorly graded sand remained on the sampler. HC odor was observed in 1 of the 14 <br /> samples collected from boring B5 at a depth of 35 feet bsg; organic vapor was detected <br /> in this sample utilizing an OVA at a concentration of 26.7 ppmv. <br /> Advanced CeoEnvironmental,Inc. <br />