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Calculation notes: <br />' 1 The following calculations use an elliptical model of the contaminant plume with <br /> R1 equaling the tong axis and R2 equaling the short axis, as shown below <br /> I <br /> R <br /> .............................................2 <br />' 2 The Area(A)of the plume will be calculated using the formula for the area of an <br /> ellipse as follows <br />' A=n(R1/2)(R2/2) <br /> 3 The water column for the shallow groundwater as observed in previous boring <br />' advancement and groundwater sampling is approximately 10' to 15' in thickness. <br /> The volume will be calculated using the volume of the contaminant plume <br /> (elliptical area)multiplied by the water thickness. A volume range will be <br />' identified for the range of aquifer thickness <br /> VI =A(10') and V2 =A(15') <br />' 4. A soilorosi of 0 58 (general porosity for clays)will be used to calculate the <br /> P ty g <br /> volume of groundwater in soil,modifying the previous formulas to- <br /> VI =A 10' 0 58 and V2=A(15')(0.58) <br />' 5 The units are calculated in cubic feet and converted to liters(L): <br /> 35 314 cubic feet= 1 cubic meter <br />' 1 cubic meter= 1,000 liter <br /> 28.31.7 L: 1 cubic foot <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br />