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RYEGRASS LIMITED PURPOSE LANDFILL - PHASE 2 <br />PRELIMINARY ENGINEER'S ESTIMATE OF PROBABLE COST <br />2023 DOLLARS <br />20 ACRES <br />6/1/2023 <br />ITEM <br />DESCRIPTION <br />QUANTITY <br />UNIT <br />Unit Price <br />Total <br />1 <br />Mobilization <br />1 <br />LS <br />S470,000 <br />S470,000 <br />2 <br />Surveying <br />1 <br />LS <br />S40 000 <br />S40 000 <br />3 <br />Site Health and Safety Plan <br />1 <br />LS <br />$3 000 <br />$3 000 <br />4 <br />Spill Prevention Plan <br />1 <br />LS <br />$2,000 <br />$2,000 <br />5 <br />Temporary Erosion and Sediment Control <br />1 <br />LS <br />S30,000 <br />$30 000 <br />6 <br />Excavation Haul and Stockpile <br />71,000 <br />CY <br />$7 <br />S468 600 <br />7 <br />Embankment and Compaction <br />7,000 <br />CY <br />$5 <br />$35 000 <br />8 <br />Bedding Layer from Offsite Borrow In-Place <br />33,000 <br />CY <br />$15 <br />$486,800 <br />9 <br />Leachate Collection Layer from Offsite Borrow In -Place <br />49,000 <br />CY <br />$9 <br />S460 100 <br />10 <br />Crushed Surfacing Base Course In -Place <br />1,000 <br />CY <br />$30 <br />$30 000 <br />11 <br />Construction Geotextile for Ditch Lining <br />19,000 <br />SY <br />$6 <br />$114 000 <br />12 <br />Interim Stormwater Berm In -Place <br />5,000 <br />LF <br />S13 <br />$67100 <br />13 <br />Containment Berm, In Place <br />3,100 <br />LF <br />$8 <br />$24 800 <br />14 <br />Rock Armor Lined Ditch In -Place <br />19,000 <br />SY <br />$18 <br />$347,300 <br />15 <br />Trimming and Cleanup <br />1 <br />LS <br />$32 000 <br />$32 000 <br />16 <br />8-Inch ADS Solid Wall Corrugated Stormwater Diversion Pipe <br />45 <br />LF <br />$70 <br />$3,200 <br />17 <br />8-Inch HDPE Solid Wall Stormwater Diversion Pie <br />45 <br />LF <br />$45 <br />$2,000 <br />18 <br />60-mil HDPE Geomembrane In -Place <br />103,000 <br />SY <br />$11 <br />$1 081 500 <br />19 <br />Geotextile Cushion Layer <br />103,000 <br />SY <br />S4 <br />S417 200 <br />20 <br />Geos nthetic Clay Liner GCL , In -Place <br />98,000 <br />SY <br />$10 <br />S1,010 400 <br />21 <br />Geomembrane Penetrations <br />4 <br />EA <br />S500 <br />$2,000 <br />22 <br />12-inch HDPE Solid Wall Leachate Transfer Pie <br />75 <br />LF <br />$80 <br />$6 000 <br />23 <br />6-inch HDPE Perforated Leachate Collection Pie <br />900 <br />LF <br />$17 <br />$15 500 <br />24 <br />6-inch HDPE Solid Wall Leachate Leak Detection Pie <br />50 <br />LF <br />S21 <br />$1 000 <br />25 <br />Firewater Storage Tank Relocation <br />1 <br />LS <br />$5,000 <br />$5,000 <br />26 <br />Native Brush Relocation <br />1 <br />LS <br />$5001 <br />S500 <br />TOTAL w/o CONTINGENCY $5,149,500 <br />CONTINGENCY 20% $1,029,900 <br />TOTAL w/ CONTINGENCY $6,179,400 <br />KITTITAS COUNTY SALES TAX (2023) 8.1% $501,000 <br />DESIGN AND CONSTRUCTION MANAGEMENT SERVICES 10% $515,000 <br />TOTAL BID SCHEDULE $7,195,400 <br />NOTE: <br />Costs are in 2023 dollars. Construction would be in 2024 or later so inflation will impact these values <br />