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' GEOMATRIX <br /> ALTERNATIVE 3 <br /> TANK AREA EXCAVATION TO 1-FOOT BELOW WATER TABLE <br /> ' PRELIMINARY COST ESTIMATE Page 2 of 2 <br /> Former ContiGroup Grain Elevator <br /> 1805 Harbor Street <br /> Stockton, California <br /> ' TASK <br /> ACTIVITY QUANTITY UNIT UNIT S COST S SUBTOTAL$ <br /> excavation 95,112 <br /> mob/demo 1 lump sum 12,000 12,000 <br /> install and remove shoring 1 lump sum 42,250 42,250 <br /> excavate 390 cy overburden soil and stockpile 390 cubic yard 12 4,680 <br /> excavate 117 cy affected soil 117 cubic yard 16 1,872 <br /> ' vacuum removal and disposal of product 1 lump sum 5,000 5,000 <br /> offsite transportation and disposal of affected soil 200 ton 42 8,400 <br /> locate and test source of backfill soil 1 lump sum 5,000 5,000 <br /> sample and test stockpiled overburden soil 4 ea 250 1,000 <br /> place calcium peroxide 1 lump sum 7,500 7,500 <br /> move,place,and compact overburden soil 390 cubic yard 9 3,510 <br /> import fill purchase,transport,place,compact 200 ton 20 4,000 <br /> Other mise 33,000 <br /> field work oversight and coordination 12 days 1,500 18,000 <br /> l <br /> rmsc field equipment 1 lump sum 5,000 5,000 <br /> replace utility pole and power line 1 lump sum 10,000 10,000 <br /> EXCAVATION and BACKFILL SUBTOTAL $ 156,212 <br /> TASK <br /> ACTIVITY QUANTITY UNIT UNITS COST S SUBTOTAL$ <br /> ' 15%project management cost 0 15 176,212 26,400 <br /> 20%contingency cost 02 176,212 44,100 <br /> TOTAL S 246,712 <br /> ' 11Dac Safe19000s199631CAP1App8 Altematmes As 10/6/20043 15 PM <br />