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t.
<br />Attachment 4
<br />Forward Landfill -187.6-Acre Closure Area
<br />Gas Control System Modifications Cost Estimate
<br />Item
<br />No. I Description
<br />2aivage anore Install well manifold
<br />Salva a and nstall wellhead assembly
<br />2"SCH 80 PVC well lateral &fittings in trench/slee,
<br />2"SDR 9 HDPE compressed air in common trench
<br />Salvage and re -install 2" HDPE compressed air/cor
<br />2"SDR 11 HDPE condensate line in common trenc
<br />PHDPE
<br />HDPE, single pi in trench
<br />HDPE, multiple lines in common trench
<br />ind Flange
<br />ectro-fuinexisting 2" HDPE air or Mnexisting 4" HDPE well lateral (PVC)
<br />Cut & Cap existing 18" HDPE header (PVC)
<br />Install 18" x 8" HDPE saddle (for temporary jumper)
<br />2 PVC MIp Adapter Into existing HDPE or PVC hea
<br />Salvage and re -install 18" x 6" PVC SaddlefreeoQ n
<br />Salvage and re -install 18" x 6" HDPE Saddle/Tee G
<br />Salvage and re -install 18" PVC Elbow
<br />Salvage and re -Install 18" HDPE Flange Adapter & t
<br />Salvage and re -install 18" PVC Flange & Hardware
<br />18" SDR 17 HDPE pipe in trench (as required)
<br />Salvage and re -install 18" SDR 17 HDPE in trench
<br />Salvage and re -install 18" x 14" HDPE Eccentic Red1
<br />Salvage and re -Install 18" SCH 40 PVC Header on p
<br />Salvage and re -install double pipe support
<br />nstall double pipe support
<br />18" PVC SChd40 Pipe on Supports
<br />ialvage and re -install 14" ITC Flex Hose and clamps
<br />Salvage and re -install 18" x 14" Eccentric PVC Redu1
<br />Salvage and re -install 18" Butterfly Valve
<br />'alvage and re -install Condensate Pump Station
<br />salvage and re -Install 18" x 4" HDPE Tee (at sump)
<br />'alvage Covanta Energy piping on grade
<br />le -install Covanta Energy piping on grade
<br />,ut & Cap Covanta Energy Vertical Gas Extraction W
<br />xtend Covanta Energy Vertical Gas Extraction Well
<br />nit
<br />EA
<br />Unit Costs
<br />Total
<br />$28,765
<br />21 EA $
<br />39 Single Pipe Support
<br />1,581.25
<br />Cost
<br />EA
<br />$
<br />-EA
<br />41 6" CSP Sleeve Road Crossing 83 EA $
<br />$
<br />2,248.25
<br />$84,354
<br />12 00
<br />12.00
<br />A
<br />$
<br />*F$
<br />189.18
<br />$5,521
<br />339
<br />$1,339
<br />LF
<br />$
<br />7.22
<br />$26,487
<br />F
<br />$
<br />2.81
<br />$17,572
<br />4 EA $
<br />46 14" PVC Elbow
<br />F
<br />$
<br />1.55
<br />$56,864
<br />483.13
<br />F
<br />$
<br />2.07
<br />$12,944
<br />$195,904
<br />F
<br />$
<br />13.89
<br />$1,737
<br />4,169
<br />LF
<br />$
<br />8.33
<br />$34,727
<br />4
<br />EA
<br />$
<br />715.92
<br />$2,985
<br />334
<br />EA
<br />$
<br />77.62
<br />$25,887
<br />75
<br />EA
<br />$
<br />69.00
<br />$5,178
<br />334
<br />EA
<br />$
<br />66.12
<br />$22,052
<br />33
<br />EA
<br />$
<br />399-651
<br />$13,329
<br />29
<br />EA
<br />$
<br />617.84
<br />$18,030
<br />29
<br />EA
<br />$
<br />35.50
<br />$1,036
<br />21
<br />EA
<br />$
<br />569.08
<br />$11,862
<br />13
<br />EA
<br />$
<br />512.90
<br />$6,415
<br />13
<br />EA
<br />$
<br />569.08
<br />$7,117
<br />4
<br />EA
<br />$
<br />256.45
<br />$1,069
<br />13
<br />EA
<br />$
<br />342.03
<br />$4,278
<br />834
<br />LF
<br />$
<br />54.21
<br />$45,199
<br />5,420
<br />LF
<br />$
<br />45.50
<br />$246,590
<br />42
<br />EA
<br />$
<br />256.45
<br />$10,691
<br />12,924
<br />LF
<br />$30.95
<br />$399,984
<br />792
<br />EA
<br />$
<br />201.14
<br />$159,321
<br />83
<br />EA
<br />$
<br />286.18
<br />$23,861
<br />1,251
<br />LF
<br />$52.43
<br />$65,572
<br />75
<br />EA
<br />$
<br />259.38
<br />$19,464
<br />117
<br />EA
<br />1
<br />342.03
<br />$39,925
<br />4
<br />EA
<br />$
<br />629.53
<br />$2,624
<br />4
<br />EA
<br />$
<br />2,645.00
<br />$11,027
<br />4
<br />EA
<br />$
<br />384.68
<br />$1,604
<br />1
<br />LS
<br />$
<br />7,500.00
<br />$7,500
<br />1
<br />LS
<br />$
<br />13,000.00
<br />$13,000
<br />50
<br />50
<br />EA
<br />$
<br />287.50
<br />$14,383
<br />38 Extend Condensate Pump Station $
<br />575.00
<br />$28,765
<br />21 EA $
<br />39 Single Pipe Support
<br />1,581.25
<br />$32,960
<br />17 EA $
<br />40 Salvage and re -install single pipe support
<br />52.03
<br />$868
<br />41 6" CSP Sleeve Road Crossing 83 EA $
<br />$3,470
<br />42 Install 10" x 6" PVC saddle or tee (for temporary manifold 1, 434 LF $
<br />) EA
<br />12 00
<br />12.00
<br />22,012
<br />$$1
<br />$
<br />43 8" PVC flange & hardware
<br />321.14
<br />339
<br />$1,339
<br />44 8' HDPE flange adapter, back-up ring, & hardware 4 EA $
<br />335.43
<br />$1,398
<br />4 EA $
<br />45 14" x 8" PVC Reducer
<br />317.72
<br />$1,325
<br />4 EA $
<br />46 14" PVC Elbow
<br />730.92
<br />$3,047
<br />47 18" PVC Couplings 4 $
<br />483.13
<br />$2,014
<br />625 EA $
<br />48 Paint PVC Wellheads/Piping
<br />313.28
<br />$195,904
<br />1 LS $
<br />49 18" Electrofusion Coupling
<br />53,000.00
<br />$53,000
<br />33 EA $
<br />50 4" PVC Couplings
<br />930.92
<br />$31,047
<br />104 EA $
<br />51 6" PVC Couplings
<br />29 27
<br />$3,051
<br />Subtotal 125 EA $
<br />49.74
<br />$6.221
<br />52 Miscellaneous glutlRrimer & shipping 1%$1,806,609
<br />1 LS $
<br />18 066.09
<br />$18066
<br />NOTES: TOTAL
<br />$1 824 675
<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 HDPE 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 work/expansion of
<br />®
<br />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
<br />Landfill.
<br />LFgSyslem Back-upBASC
<br />
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