Laserfiche WebLink
Table 3 <br /> Estimated Mass and Volume of Hydrocarbons in Vadose and Saturated Zone Soil Before Oxygen Injections <br /> 7-Eleven Store#14117 <br /> 2725 Country Club Boulevard <br /> Stockton, California <br /> Total HydrocarbonImpacted,. Soil, lb/mg „Mass of kg/Ib gal/m3 Density of Volume,of . <br /> Soil ,. .. <br /> Mean Concentrations n Area(ft). Densityd conversion Analyte conversion conversion Hydrocarbons Analytes <br /> Thickness <br /> (mg/kg) (feet) (kg/ft3) factor (lbs) factor factor (k9/m3) `(gallons) <br /> C r T A D1 _ C1 M C2 C3 = D2 V <br /> 88.15 15 3,163 48 2.20E-06 442.58 0.45 264.17 720 73.66 <br /> Definitions <br /> ft2=square feet lbs=pounds <br /> ft=feet kg=kilograms <br /> µg=micrograms gal=gallon <br /> L=liter m3=cubic meters <br /> ft3=cubic feet <br /> Calculations and Exalanation. <br /> a Geometric mean concentration of total petroleum hydrocarbons as gasoline(TPHg)in soil.See Table 1. <br /> b Based on conservative estimate of depth to contamination of 8 feet below ground surface(bgs)to 23 feet bgs. <br /> These depths were chosen based on the,absence of detected hydrocarbons from the samples collected at 5 feet bgs and 25 feet bgs. <br /> Based on a conservative.estimate of impacted area around the former underground storage tank basin as depicted on Figure 2. <br /> d Based on default value of 1.7 kg/L and conversion factor of 28.317 Uft3(USEPA BIOSCREEN Users Manual Version 1.3, EPA/600/R-96/087, 1996) <br /> eM= TxAx CxDxC1 <br /> f mean density for TPHg <br /> 9V= MxC2xC3 /D <br /> V:\1857\active\7-Eleven\active\185750063_711_14117\05_report_deliv\tables\14117 mass calcs.xlsx Page 1 of 1 <br />