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21 Woodchip media* CY 403 $40.00 $16,120.00 <br /> 22 6'metal tee post EA 0 $10.00 $0.00 <br /> 23 Fiberglass marking flag EA 4 $20.00 $80.00 <br /> 24 Crop damages AC 0 $0.00 $0.00 <br /> Construction subtotal $38,378.80 <br /> Contingency, 10% $3,837.88 <br /> Total construction estimate $42,216.69 I <br /> *Estimated delivered woodchip cost including logs, chipping, and transportation <br /> Table 4. Design alternative 2-automated denitrifying bioreactor,engineeringzcost estimate <br /> No Description Unit Qty Unit Price Subtotal <br /> 1 Clearing and grubbing LS 0 $500.00 $0.00 <br /> 2 Tree removal LS 0 $3,000.00 $0.00 <br /> 3 Seeding&fertilizing AC 0.5 $500.00 $250.00 <br /> 4 Mobilization LS 1 $500.00 $500.00 <br /> 5 Tile investigation HR 0 $165.00 $0.00 <br /> 6 Earthwork&grading CY 617 $20.00 $12,333.02 <br /> 7 Tile abandonment LS 0 $1,000.00 $0.00 <br /> 8 Inlet WCS-8 ft x 12-inch w,i 6-inch side port EA 1 $10,162.27 $10,162.27 <br /> (Auto) <br /> 9 Outlet WCS-8 ft x 6-inch EA 1 $1,606.42 $1,606.42 <br /> 10 12-inch non-perforated CPP dual wall LF 40 $15.00 $600.00 <br /> 11 6-inch non-perforated CPP LF 125 $8.00 $1,000.00 <br /> 12 6-inch perforated CPP LF 44 $8.00 $352.00 <br /> 13 6-inch CPP tee EA 2 $50.00 $100.00 <br /> 14 6-inch CPP elbow 45deg EA 0 $30.00 $0.00 <br /> 15 6-inch CPP end cap EA 4 $10.00 $40.00 <br /> 16 6-inch SDR35 backflow check valve EA 1 $150.00 $150.00 <br /> 17 6-inch CPP to PVC flex coupler EA 2 $20.00 $40.00 <br /> 18 3'x 3'gum rubber antiseep collar EA 0 $120.00 $0.00 <br /> 19 Class 2 non-woven geotextile SY 216 $4.00 $864.00 <br /> 20 4 mil plastic liner SY 400 $3.00 $1,200.00 <br /> 21 Woodchip media* CY 403 $40.00 $16,120.00 <br /> 22 6'metal tee post EA 0 $10.00 $0.00 <br /> 23 Fiberglass marking flag EA 4 $20.00 $80.00 <br /> 24 Crop damages AC 0 $0.00 $0.00 <br /> Construction subtotal $45,397.71 <br /> Contingency, 10% S4,539.77 <br /> Total construction $49,937.49 <br /> estimate <br /> *Estimated delivered woodchip cost including logs, chipping, and transportation <br /> Summary of Control Structures <br /> Table 5.Water control structure summary.Northing/Easting provided in NAD83 Illinois East,USFt. <br /> Structure Structure Northing Easting Flow Line Impacted Pipe Pipe Depth Structure <br /> Type Elevation Area Size Material (ft.) Height <br /> - - Aft.' Sam (ft.) <br /> WCS-1 Manua ber 1188893.3026 879684.9542 678.5 99.0 inc12- <br /> h CPP 7.0 8.0 <br /> 3- -- - - inc <br /> WCS-2 Manua ber 1188910.4586 879580.6448 678.0 - inch CPP 6.8 8.0 <br /> 2-chamManagement Guidelines <br /> Reference management elevations for the water control structures are provided in Table 6.The control <br /> elevation corresponds to the lowest cropped elevation upstream from the water control structures and <br /> serves as a reference for management. Typically,when upstream management elevations(WCS-1) for <br /> the denitrifying bioreactor are greater than or equal to two feet below the control elevation, stoplogs do <br /> not need to be adjusted seasonally, allowing for year-round (or nearly year-round) management. In this <br /> Page 5 of 14 <br />