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Home My Public Portal AboutBox 512 - Engineer's Estimate of Probable costs- TABLE 9 treatment plant : Engineer's Estimate of Probable First Costs of Construction t J-Ditch Alternative Item Quantity Units Unit price Cost 5 mgal storage 1 LS 5120,000 $120,000 effluent Flow meter 1 LS 520,000 520,000 repair existing sand filter remove existing material 16,000 CY $2 00 $32,000 replace 1/2" material 3,300 CY $15 00 $49,500 replace sand 19,360 CY $20.00 $387,200 new 1-acre sand filter 1/2" select support material 3,300 CY $15.00 $49,500 sand 4,840 CY $20 00 $96,800 6" ADS underdrain 2,100 LF $13.00 $27,300 center underdrain 350 LF $50 00 $17,500 dosing structure 1 LS $25,000 $25,000 exit structure 1 LS $25,000 $25,000 earthwork 1 LS 550,000 $50,000 install fine screens 1 LS $215,000 $215,000 SUBTOTAL _ $1,114,800 duplex pump station : 12'x12` precast wet well: 28 foot bury depth 1 LS S65,000 $65,000 3 stage vertical turbine pump with cast iron discharge head, column assembly, stainless steel basket strainer, and 150 HP electric motor 2 EA $32,000 S64,000 Milltranics level control 1 LS $25,000 $25,000 structural 400 SF $110.00 $44,000 electrical 1 LS $22,000 $22,000 mechanical 1 LS $20,000 $20,000 SUBTOTAL : $240,000 pipe to storage : 12" PVC, C900 22,120 LF $27.00 $597,240 air vac 1 relief valves 7 LS $2,250 $15,750 blow - off valves 3 LS $1,500 $4,500 gravel / pavement surface restoration 15,760 LF S7 00 $110,320 natural surface restoration 6,360 t-F $2.00 $12.720 river crossing 120 LF $120 00 $14.400 easement purchase / land acquisition 4 ACRES $3.500 $14.000 SUBTOTAL: 300 mgal storage : $788.930 land acquisition 40 ACRES $3,500 $140,000 earthwork / appurtenances 1 LS $3,300,000 $3,300,000 SUBTOTAL : $3.440,000 Continued on next pg (14 Table 9 Continued blending intersection : excavation for equalization storage 15,000 CY $4.50 $67,500 overflow weir 1 LS $8,500 $8.500 canal type sluice gate 1 LS 57,500 $7,500 air vac 1 relier valve 1 LS $3,500 $3,500 programmable control 1 LS $12,000 $12,000 modulating valve 1 LS $16,000 $16,000 flow meter 2 LS $4,000 $8,000 SUBTOTAL : $123,000 J-lateral main : 42" steel pipe, class 132 4,720 LF $145.00 $684.400 36' steel pipe, class 132 6,500 LF $120.00 $780,000 30" steel pipe, class 132 4,160 LF $100 00 5416,000 24" PVC, C905 3,880 LF $75.00 $291,000 18" PVC, C905 5,480 LF $54.00 $295,920 14" PVC, C905 2,600 LF $40.00 $104,000 12" PVC, C900 2,600 LF $27,00 S70,200 gravel surface restoralion 29,940 LF $7.00 $209.580 pressure equalization valve 1 LS $4,300 $4,300 blow - off valve 1 LS $1,500 $1,500 SUBTOTAL : $2,856,900 laterals to sprinkler pumps : 18" PVC, C905 4,000 LF $54.00 $216,000 15" PVC, C905 4,400 LF $40 00 $176,000 12" PVC, C900 1,660 LF 527.00 $44,820 gravel surface restoration 10,060 LF $7 00 $70,420 pressure equalization valve 3 LS $4,300 $12,900 blow - off valves 4 LS $1,500 56,000 SUBTOTAL : $526,140 sprinkler irrigation system : other irrigation system : (possible combination of 1,640 ACRES $1,000 $1,640,000 pivots, wheel lines, and solid sets, pumps and mechanical equipment, and runoff collection, storage, and handling) SUBTOTAL : $1,640,000 engineering (15%) contingency (15%) SUBTOTAL: 1 1 LS $1,585,466 $1,585,466 LS $1,606,466 51,606,466 $3,191,931 �. _.. TOTAL ESTIMATED COST : S13,902,000 TABLE 10 Item Engineers Estimate of Annual O&M Costs J-Ditch Alternative Quantity Units Unit Cost Cost Labor 1 LS 565,000 $65,000 Lagoon Maintenance 1 LS $7,200 57,200 Treatment Plant Power 1 LS 545,000 $45,000 Pumping Cost 1 LS $23,413 $23,413 Basin Maintenance 1 LS $12,000 $12,000 Pump Maintenance 1 LS 54,000 $4,000 Effluent Line Maintenance 22,120 LF $0.35 $7,742 Storage Lagoon Maintenance 1 LS $15.000 $15,000 Equalization Basin Maintenance 1 LS $8,000 $8,000 Monitoring 3,000 Per ACRE $0 $0 TOTAL ESTIMATED COST : S187,400