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Hydrocarbon Estimates Plant K Estimate of H drocarbons Removed C013centratio Soil Volume Esti a 95 Avg. 93 Boring Average 115 #!tuft .4535#/kg Re ve Hydrocarbon mglkg mg/kg mg/kg tuft # kg mg kg # Gallons Hydrocarbon Gasoline 951.333 24700 1.28E+04 7.56E+02 8.69E+04 3.94E+04 5.06E+08 5.06E+02 1115.063 92.322 Gasoline Benzene 0.002 4.18 2.091 7.56E+02 8.69E+04 3.94E+04 8.24E+04 8.24E-02 0.181806 0.019 Benzene Toluene 0.002 1.85 0.926 7.56E+02 8.69E+04 3.94E+04 3.65E+04 3.65E-02 0.080521 0,008 Taiuene Ethyl Benzene 0.065 123.8 61.933 7.56E+02 8.69E+04 3.94E+04 2.44E+06 2.44E+00 5,384426 0,562 Ethyl Benzene Xylene 0.0071 762.5 381.254 7.56E+02 8.69E+04 3.94E+04 1.50E+07 1.50E+01 1 33.14618 3.451 Xylene Soil Volume Calculations Contaminated Soil ElMoved Soil of me Calculations Remaining Soil To Zero o Poi t One circles cQ 6 feet diameter by 28 feet deep+ Two Rectangles @ 3 feet by 9 feet by 28 feet = 756 each Two circles @ 2 feet diameter by 28 feet deep= One rectangle @ 3 feet by 6 foal by 28 feet 504 970.6312 Two triangles 2 feet by 2 feet by 2.83 feet by 28 fed = 118.44 Residual_Hydrocarbon Estimate Calculations for benzene,toluene,and Xylene are based on limits of delectability. These are very conservative numbers. Benzene,toluene,and xylene were not found at measurable levels in the confirmation samples. Delectability Limits for: TPHG=2mg/kg BTEX=0.1 to 0.3pg/kg CoCo c2nt tiM Soil Volume HA North N.Waif Average 115#/tuft .4535#/kg Hydrocarbon mg/kg mg/kg mg/kg cult # kg mg kg # Gallons Hydrocarbon Gasoline 2 2300 1151 7.56E+02 8.63E+04 3.94E+04 4-54E+07 4.54E+01 100,0679 6.285143 Gasoline Benzene 0.001 0.001 0.001 7.56E+02 8.69E+04 3.94E+04 3.94E+01 3.94E-05 8.69E-05 9.2E-06 Benzene (Represents Non-Defect) Toluene 0.001 0.001 0.001 7.56E+02 8.69E+04 3.94E+04 3.94E+01 3.94E-05 8,69E-05 9.08E-06 Toluene [Represents Non-Detect) Ethyl Benzene 0,001 OA91 0.0955 7.56E+02 8.69E+04 3.94E+04 3.77E+03 3.77E 03 OA08303 0.000867 Ethyl Benzene Xylene 0.003 0.003 0.003 7.56E+02 8.69E+04 3.94E+04 1.18E+02 1.18E-04 0.000261 2.72E-05 Xylene [Represents Non-Defect] HA South S.Wall Average 115#/cult .4535#/kg H d ocarbon mmg/kg mg/kg tuft # kg mg kg # Gallons .Hydrocarbon Gasoline,__ ---2- 47.0 -236 .7.56E+02 -8.69E+04 -3.94E+04-930E+06 9.30E+00 20:51784=1:698778 Gasoline- Benzene asolineBenzene 0.001 0.004 0.0025 7.56E+02 8.69E+04 3.94E+04 9.86E+01 9.86E-05 0.000217 2.3E-05 Benzene [Represents Non-Detect] Toluene 0.001 0.004 0.0025 7.56E+02 8.69E+04 3.94E+04 9.86E+01 9.86E-05 0.000217 0.001564 Toluene [Represents Non-Detect) Eth I Benzene 0.001 0.004 0.00251-7.56E+02 8.69E+04 3.94E+04 9.86E+01 9.86E-05 0.000247 2.27E-05 Ethyl-Ben- [Represents Nan-Detect] Xylene 0.003 0.012 0.0075 7.56E+02 8.69E+04 3.94E+04 2,96E+02 2.96E-04 0.000652 6.79E 05 Xylene [Represents Non-Detect] 1 HA East E.Wall Average 115#/tuft .4535#/ISg Hydrocarbon mg/kg mg/kg mg/kg cult # kg mg kg # Gallons Hydrocarbon Gasoline 2 84 43 6.22E+02 7.16E+04 3.25E+04 1.40E+06 1.40E+00 3.077966 0.254841 Gasoline Benzene 0.001 0.002 0.0015 6-22E+02 7.16E+04 3.25E+04 4,87E+01 4.87E-05 0.000107 1.14E-05 Benzene [RepresentsNon-Detect Toluene 0.001 0.002 0.0015 6.22E+02 7.16E+04 3.25E+04 4.87E+01 4.87E-05 0.000107 0.000773 Toluene [Re ants NavrDetecfJ Ethyl Benzene 0.001 0.002 0.0015 6,22E+02 7.16E+04 3.25E+04 4.87E+01 4.87E-05 0.000107 1.12E-05 Ethyl Ben [Represents Non-De-n Xylene 1 0,D031 0.006 0.0045 6.22E+02 7.16E+04 3.25E+04 1.46E+02 1.46E-04 0.000322 3.35E-05 Xylene (Represents Non Detect] Estimate Residual Hydrocarbons Grand Total Hydrocarbon Gallons Gasoline 10.239 Benzene 0.00004 fflepresents Non-Detect] Lene 0.00236(Represents Non-Detect Benzene 0.00090 :►e 0.00013 IfRepresents Non-Detect