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1 <br /> Table C-3 <br /> Suininarf of Mass Calculations for TPN(ppm) <br /> Former Tank Site 42 <br /> 1325 West Weber Avenue,Stockton,CA <br /> Post-Excavation Sampling Locations Exceeding Remedial Goal <br />' Depth(ft-bgs) E33 5S2 5 E28S11 E31N5 5 E38N8 S2-B3 S2-134 <br /> 5 1539 1188 2060 938 35 330 <br /> 65 1839 1418 1265 1119 2329 440 <br /> 72 1541 1188 1059 937 3400 374 <br /> 75 1421 1095 976 864 3135 347 <br /> 9 894 687 612 542 1967 229 <br /> 95 744 572 509 450 1637 195 <br />' 10 608 467 415 367 1335 164 <br /> 101 582 447 397 352 1279 158 <br /> 102 557 427 380 336 1223 152 <br /> 103 533 408 363 321 1169 147 <br />' <br /> 104 509 390 346 306 1115 141 <br /> 105 485 371 330 292 1063 136 <br /> 11 376 287 254 225 820 110 <br /> 1135 307 233 207 183 668 94 <br />' <br /> 117 244 185 163 145 530 79 <br /> 125 126 93 81 72 267 50 <br /> 126 114 84 73 64 240 47 <br /> 127 102 75 65 57 214 44 <br />' . <br /> 128 91 66 57 50 188 41 <br /> 129 80 57 44 44 164 38 <br /> 13 70 49 42 37 142 35 <br /> 131 60 42 35 31 120 33 <br /> 13 2 51 35 29 26 99 30 <br /> 133 42 28 23 20 80 28 <br /> 134 34 22 17 15 62 26 <br /> 135 26 16 12 11 45 24 <br /> 15 0 0 0 0 0 5 <br /> 16 0 0 0 0 17 6 <br /> Total TPH Average Concentration= 3950 <br /> Average depth to remedial goal(100 ppm)= 75 <br /> TPHg MASS(lb)After Excavation <br /> 94019 332 <br /> Thickness(ft)=7 5 <br /> Surface Area(ft)=1124 <br /> Volume(ft')=8402 <br /> Total Mass(lb)=332 <br /> Note <br /> Bolded values are actual data points <br /> The thickness value is the depth below the depth of the first data point at a sample location For example, <br /> if a sample was taken at 5 feet and the thickness is 8 3 feet,the total depth below ground surface is 13 3 feet <br /> 2996Catellus Stockton\1999 Closure Report\report tables\Site#2 Mass Calcs <br />