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Attachment 4
<br />Forward Landfill - 187.6 -Acre Closure Area
<br />Gas Control System Modifications Cost Estimate
<br />Item
<br />No. Description
<br />Qty 187'6- Unit
<br />Acre Area
<br />Unit Costs
<br />Total
<br />Cost
<br />1 Construction Mobilization/Demobilization (1)
<br />2 Salvage and re install well manifold
<br />0
<br />EA $
<br />$C
<br />3 Salvage and re-installwellhead assembly
<br />38
<br />$
<br />2,248.25
<br />.
<br />$84,354
<br />4 2" SCH 80 PVC welt lateral &fittings in trench/sleeve
<br />29
<br />$
<br />189.18
<br />$5,521
<br />5 2" SDR 9 HDPE compressed air to common trench (jumper)
<br />6,253
<br />7 22
<br />$26,487
<br />6 Salvage and re -install 2" HDPE compressed air/condensate
<br />LF $
<br />2'81
<br />$17,572
<br />7 2" SDR 11 HDPE condensate line in common trench (jumper)
<br />36,686
<br />6
<br />LF $
<br />1.55
<br />$56,864
<br />8 4" SDR 17 HOPE, single pipe in trench
<br />,253
<br />LF $
<br />2.07
<br />$12,944
<br />9 4" SDR 17 HOPE, multiple lines in common trench125
<br />LF $
<br />13.89
<br />$1,737
<br />10 18" PVC Blind Flange
<br />4,169
<br />LF $
<br />8.33
<br />$34,727
<br />11 4" HDPE Electro -fusion coupling
<br />4
<br />$
<br />715.92
<br />$2,985
<br />12 Cut & Cap existing 2" HOPE air or condensate line (HOPE)
<br />75
<br />$
<br />77.62
<br />$25,887
<br />13 Cut & Cap existing 4" HOPE well lateral (PVC)
<br />$
<br />69.00
<br />$5,178
<br />14 Cut & Cap existing 18" HDPE header (PVC)
<br />334
<br />EA $
<br />66.12
<br />$22,052
<br />15 Install 18" x 8" HDPE saddle (for tempora jumper
<br />33
<br />$
<br />399.65
<br />$13,329
<br />16 2" PVC Mip Adapter into existing HOPE or PVC header
<br />29
<br />EA $
<br />617.84
<br />$18,030
<br />17 Salvage and re -install 18" x 6" PVC Saddle/Tee @ manifold
<br />29
<br />$
<br />35.50
<br />$1,036
<br />18 Salvage and re -install 18" x 6" HDPE Saddle/Tee @ manifold
<br />21
<br />EA $
<br />569.08
<br />$11,862
<br />19 Salvage and re -install 18" PVC Elbow
<br />13
<br />EA $
<br />512.90
<br />$6,415
<br />20 Salvage and re install 18" HDPE Flange Adapter & Hardware
<br />13
<br />EA $
<br />569.08
<br />$7,117
<br />21 Salvage and re -install 18" PVC Flange &Hardware
<br />4
<br />EA $
<br />256.45
<br />$1,069
<br />22 18" SDR 17 HDPE ipe in trench (as required)
<br />13
<br />EA $
<br />342.03
<br />$4,278
<br />23 Salvage and re -install 18" SDR 17 HDPE in trench
<br />834
<br />LF $
<br />54.21
<br />$45,199
<br />24 Salvage and re -install 18" x 14" HOPE Eccentic Reducer
<br />5,420
<br />LF $
<br />45.50
<br />$246,590
<br />25 Salvage and re -install 18" SCH 40 PVC Header on i
<br />P
<br />42
<br />EA $
<br />256.45
<br />$10,691
<br />26 Salvage and re -install double pi support
<br />27 Install double pipe support
<br />P P
<br />792
<br />1792
<br />LF $
<br />EA $
<br />30.95
<br />201.14
<br />$39g g84
<br />$159,321
<br />PPort
<br />28 18 " PVC Schd40 Pipe on Supports
<br />83
<br />EA $
<br />286.18
<br />$23,861
<br />29 Salvage and re -instal! 14" ITCFlex Hose and
<br />1,251
<br />LF $ .`
<br />52.43
<br />$65,572
<br />clams
<br />30 Salvage and re install 18" x 14" Eccentric PVC Reducer
<br />75
<br />EA $
<br />259.38
<br />$19,464
<br />31 Salvage and re -install 18" Butterfly Valve
<br />117
<br />FA $
<br />342.03
<br />$39,925
<br />32 Salvage and re -install Condensate Pump Station
<br />4
<br />EA $
<br />629.53
<br />$2,624
<br />33 Salvage and re -install 18" x 4" HOPE Tee (at sump)
<br />4
<br />EA $
<br />2,645.00
<br />$11,027
<br />34 Salvage Covanta Ener gy piping on grade
<br />EA $
<br />384.68
<br />$1,604
<br />35 Re -install Covanta Energy piping on grade
<br />1
<br />LS $
<br />7,500.00
<br />$7,500
<br />36 Cut & Cap Covanta Energy Vertical Gas Extraction Well
<br />1
<br />LS $
<br />13,000.00
<br />$13,000
<br />37 Extend Covanta Energy Vertical Gas Extraction Well
<br />50
<br />$
<br />287.50
<br />$14,383
<br />38 Extend Condensate Pump Station
<br />50
<br />$
<br />575.00
<br />$28,765
<br />39 Single Pipe Support
<br />21
<br />$
<br />1,581.25
<br />$32,960
<br />40 Salvage and re -install sin le pipe support
<br />9 P P PPort
<br />17
<br />EA $
<br />52.03
<br />$868
<br />41 6" CSP Ste -41.62
<br />Road Crossing
<br />83
<br />EA $
<br />$3,470
<br />42 Install 10" x 6" PVC saddle or tee (for temporary manifold )
<br />1.834
<br />LF $
<br />U.
<br />$22,012
<br />43 8" PVC flange & hardware
<br />4
<br />EA $
<br />321.14
<br />$1,339
<br />44 8" HOPE flange adapter, back-up ring, & hardware
<br />4
<br />EA $
<br />335.43
<br />$1,398
<br />45 14" x 8" PVC Reducer
<br />4
<br />EA $
<br />317.72
<br />$1,325
<br />46 14" PVC Elbow
<br />4
<br />$
<br />730.92
<br />$3,047
<br />47 18" PVC Couplings
<br />4
<br />EA $
<br />483.13
<br />$2,014
<br />48 Paint PVC Wellheads/Piping
<br />625
<br />EA $
<br />313.28
<br />$195,904
<br />49 18" Electrofusion r -- ii-
<br />1
<br />LS $
<br />53,000.00
<br />$53,000
<br />50 4" PVC Couplings
<br />33
<br />EA $
<br />930.92
<br />$31,047
<br />51 6" PVC Couplings
<br />104
<br />EA $
<br />29.27
<br />$3,051
<br />Subtotal
<br />125
<br />EA $
<br />49.74
<br />$6,221
<br />5 1 Miscellaneous ah
<br />$1.806.609
<br />Mobilization and demobilization included in Section 1 of Table 3.
<br />Salvaged PVC header will have existing bells removed and replaced with couplings for re -installation.
<br />Salvaged PVC fittings will be re -connected via installation of new couplings on both sides of fitting.
<br />Salvaged PVC and HOPE pipe and fittings may require that some new replacement materials be purchased_
<br />Unit costs utilized in this attachment were obtained from recent construction bids for ongoing worklexpansion of the LFG
<br />system. The material quantity were based on the 187.6 acres closure area in proportion to the closure of the Stage 1A partial
<br />closure project completed in 2005 at the Forward Landfill.
<br />LFySyslem Back-upSASC
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