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Jun 24 05 07: 47a RAP Enviro 1 925 277 1781 p. 5 <br /> TABLE <br /> HYDROCARJON MASS CALCULATIONS <br /> Central California Traction Company <br /> 1645 Cherokee lane,Stockton,Cao 95205 <br /> Average Concentration of TPH-as-Diese)over remaining zone of impacted <br /> Soil- <br /> Sam pie I TPH-m4)k set <br /> 62-i238 <br /> 8245 0.5 <br /> B2-Z0 0.5 <br /> BZ-2S 13 <br /> BA-10 27 <br /> B4-1S 0.5 <br /> 84.20 0.5 <br /> 88-5 7.6 <br /> BS-10 0.5 <br /> 84-15 0.5 <br /> 8&20 0.5 <br /> Average Concentration over <br /> remaining impacted zone <br /> (pp-) 8 <br /> Mass Calculation: <br /> !Nass pbs)=volume of soil pt)x 110 Ibs Soe x Average Cwmw*atxwV le Sat x 1 O°tb soil <br /> Gallons of diesel=Mass(Iby6.8 tbfgaron <br /> TPH-aa-Diesel <br /> LaK4 <br /> ass(lbs)= 33 <br /> ilons <br /> s= S <br /> Assumptions: <br /> Concentrations for Tont Petroleum Hydrocarbons UPH)as diesel are Parts per milMn(Ppm). <br /> Non Detect(NO)results are baled as one hail of r*minet repill"ft Writs(0.5 ppm for TPH-d) <br /> vvlwne of ing7ettad sal is cwnm*^,dy ee*rr0tad as shown on arched fpAm <br /> Impacted rerrminirtg sW wakom-40 fed by 56 feet by 20 feet dew=44.800 cubic feet lass <br /> the hotpsat ata®within 20 feet=44,900-(144SX20)_36,560 cubic feet <br /> Petroleum Hydrocarbons one unifomdy dn-b'OAed w4hn Yokime Of suit <br /> Sad density-110 WahaaW fW <br /> One gallon of Okmo is approwrtteholy 6.8 pounds <br /> 1 tM gran Mogran(nSft)=1 ppm=1 pound of contaminant per 1 million pounds of soil <br />