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' • ALTERNATIVE 7
<br /> COMPLETE EXCAVATION FOR OFFSITE DISPOSAL GEOMATRIX
<br /> ' PRELIMINARY COST ESTIMATE
<br /> Former ConttGroup Grain Elevator
<br /> 1805 Harbor Street Page 2 of 2
<br /> Stockton California
<br /> TASK
<br /> ACTIVITY QUANTITY UNIT UNIT$ COST$ SUBTOTAL$
<br /> DEWATERING and TREATMENT SYSTEM(cont'd)
<br /> Other mist 110,000
<br /> treatment system installation,startup,operations 60 day 1,500 90,000
<br /> ' laboratory analysts of discharge water samples 8 ea 500 4,000
<br /> system decommissioning 1 lump sum 10,000 10,000
<br /> spent GAC pickup and disposal I lump sum 6 000 6,000
<br /> DEWATERING and TREATMENT SYSTEM SUBTOTAL S 191,000
<br /> DEMOLITION
<br /> field activities 116,000
<br /> fence 2 lump sum 4,000 8 000
<br /> ' decommison existing monitoring wells 4 lump sum 5,000 20,000
<br /> railroad demolition I lump sum 50,000 50,000
<br /> remove 4 500-ft2 asphalt&recycle I lump sum 20,000 20,000
<br /> remove overhead powerline and pole I lump sum 8,000 8,000
<br /> remove concrete slab&recycle I lump sum 10,000 10,000
<br /> DEMOLITION SUBTOTAL S 116,000
<br /> EXCA VA TION and BACKFILL
<br /> pre-veld activities 50,000
<br /> pre-profile soil waste 1 lump sum 5,000 5,000
<br /> stormwater controls installed 1 lump sum 10,000 10,000
<br /> '. Utility survey&potholing 1 lump sum 5,000 5,000
<br /> design shonng 1 lump sum 15,000 15,000
<br /> implement utility protection plan 1 lump sum 15,000 15,000
<br /> excavation 1,414,200
<br /> ' mob/demob 1 lump sum 15,000 15,000
<br /> install&remove shoring 1 lump sum 300,000 300,000
<br /> excavate 4,200 cy overburden soil and stockpile 4200 cubic yard 12 50,400
<br /> ' excavate 8,400 cy affected soil 8400 cubic yard 15 126,000
<br /> offsite transportation and disposal of affected soil 14200 ton 40 568,000
<br /> locate and test source of backfill soil 1 lump sum 10,000 10,000
<br /> sample and test stockpiled overburden soil 42 ea 250 10,500
<br /> ' move,place and compact overburden soil 4200 cubic yard 9 37,800
<br /> import fill purchase,transport,place,compact 14200 ton 20 284,000
<br /> import baserock purchase,transport,place,compact 500 ton 25 12,500
<br /> Other mtsc 45,000
<br /> ' field work oversight and coordination 40 days 1,000 40,000
<br /> mist field equipment 1 lump sum 5,000 5,000
<br /> EXCAVATION and BACKFILL SUBTOTAL $ 1,509,200
<br /> ' RECONSTRUCTION
<br /> field activities 280,000
<br /> railroad rebuild 300 LF 1 lump sum 250,000 250,000
<br /> ' replace 4500-ft asphalt pavement 1 lump sum 15,000 15,000
<br /> fencing 200 LF 25 5,000
<br /> replace utility pole and powerltne I lump sum 10,000 10,000
<br /> RECONSTRUCTIONSUBTOTAL $ 280,000
<br /> TASK
<br /> b ACTIVITY QUANTITY UNIT UNIT$ COST$ SUBTOTAL$
<br /> • 15%protect management cost 0 15 2,231,200 334,700
<br /> 20%contingency cost 02 2,231,200 557,800$ 3,123,700
<br /> ' 1 Zoc_Safe19000s%996=AP4AppB Altemalives xis 1076/20049 53 AM
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