Laserfiche WebLink
Mass Calculation of MTBE Remaining In Soil: <br /> An estimate of the areal extent of impacted soil surrounding the former UST area is made from <br /> samples collected from boring Bl, B2, B3, B4 <br /> Based on the distance between the borings , a distance of 15 feet is utilized as an `average' radius of <br /> the hydrocarbon plume for the following calculation. The vertical distribution of the impacted soil <br /> appears to be between 15 and 45 feet in depth bsg. This volume was calculated fi•om' soil sample data. <br /> V g— Tu-' •h -4 Tu(15ftz) • 30 ft z 21,195 ft' / 27 ft3/yd3 785 yd' <br /> Converting 785 yd' to tons_ <br /> 785 yd' • 1.5 tons/yd3z 1177.5 tons <br /> Assumingan aver e concentration from soil samples collected froma de th of 15 feet bsgto 45 feet <br /> bsg, a value 53 m ti <br /> e of 0. milligrams per kilogram as the "average" concentration of total MTBE. <br /> 0.53 Wg to 0.00053 g/kg to 0.00000053 kg/kg and expressed as 0.00000053 tons/ton <br /> The mass is: <br /> 1177.5 tons of soil • 0.00000053 tons/ton MTBE 1 <br /> = 0.000624 tons MTBE • 2, 000 lbs/ton <br /> f = 1.25 lbs MTBE converted with 0.453 kg/lbs <br /> = 0.57 kg of MTBE <br /> i <br /> Advanced GeoEnvironmental;Inc. <br />