Laserfiche WebLink
1 <br /> TABLE 4 <br /> HYDROCARBON MASS CALCULATIONS <br /> San Joaquin County Courthouse 222 E Weber Avenue Stockton, California <br /> ' Assumptions Mass is limited to shallow soil beneath former underground tank and piping <br /> Impacted soil volume =60 feet by 15 feet by 5 feet thick=4 500 cubic feet ' <br /> Petroleum compounds are distributed uniformly within the volumes of impacted soil <br /> Sod density= 110 lbs/cubic foot <br /> 1 ppm= 1 pound of contaminant per 1 million pounds of soil <br /> Mass(Ibs)=Volume of Soil(ft)x 110 lbs Sod x Average Concentration/(ft3)Sod x 106 Ib Soil <br /> Soil Sample Analytical Results(ppm) <br /> ' Sample ID __ TK1-N@13 TK1-N@15 TK1-S@15 P1@4 5 62-15 <br /> TPH-Gas 72 850 1,200 1 600 400 <br /> Benzene 08 ND(0) ND(0) ND(0) 03 <br /> Toluene 5 9 22 42 5 3 5 9 r <br /> ' Ethylbenzene 1 5 22 26 9 5 11 <br /> Xylenes 85 110 140 78 43 <br /> MTBE ND(0) ND(0) ND(0) 02 0 065 <br />' Sample ID 132-20 63-15 133-20 MW1-15 MW1-20 <br /> TPH-Gas 2 0 5 8 11 1 800 ND(0) <br /> Benzene 0 021 ND(0) 0 019 22 ND(0) <br />' Toluene 0 082 ND(0) ND(0) 43 ND(0) , <br /> Ethylbenzene 0 038 ND(0) 0 046 31 0 026 <br /> Xylenes 022 ND(0) 0 052 150 0 012 <br /> MTBE ND(0) ND(0) ND(0) ND(0) ND(0) <br /> Average Concentations(ppm) Calculated Mass(pounds) <br /> TPH-Gas 59408 TPH-Gas 29407 <br />' Benzene 033 Benzene 016 <br /> Toluene 1242 Toluene 615 <br /> Ethylbenzene 1011 Ethylbenzene 500 <br /> Xylenes 5298 Xylenes 2623 <br /> MTBE 003 MTBE 001 <br /> D1,d na-/ccn1,,v, wv�4( At-,,Ies,jvSfS,,y z,-dd&) v4(uej e J �t�,�� �y # �'s�•, lt, <br /> SCJ T! 1f <br /> J <br /> wh t <br />