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<br />a. Removal of rip rap as necessary. <br /> <br />b. Preparation of the ground sutface. . This would involve smoothing the <br />surface to receive either the synthetic liner or the filter fabric. Some material may <br />need to be imported to cover rough surfaces. <br /> <br />c. Excavation of anchor trenches for the synthetic liner. <br /> <br />d. Placement of the liner or fabric. <br /> <br />e. Compaction of material in anchor trenches. <br /> <br />f. Covering of the synthetic liner or placement of the compacted clay blanket. <br /> <br />g. Replacement of rip rap. <br /> <br />Following are cost estimates for these two methods: <br /> <br />Synthetic Liner: <br />Mobilization and Demobilization <br />Rip Rap Removal <br />Ground Surface Preparation <br />Anchor Trench Excavation and Backfill <br />Furnish and Place Liner . <br />Cover Liner <br />Replace Rip Rap <br />Design <br />Inspection/Completion <br />25% Contingency <br /> <br />$ 7,000 <br />7,000 <br />8,000 <br />8,000 <br />21,000 <br />13,000 <br />7,000 <br />14,000 <br />14,000 <br />17,750 <br /> <br />T olal Estimated Cost <br /> <br />$116,750 <br /> <br />Clay Blanket: <br />Mobilization and Demobilization <br />Rip Rap Removal <br />Ground Surface Preparation <br />Furnish and Place Fabric <br />Furnish, Place, Compact Blanket <br />Replace Rip Rap <br />Desi!!Il <br />v <br />Inspection/Completion <br />25% Contingllncy <br /> <br />T ota! Estimated Cost <br /> <br />$ 7,000 <br />7,000 <br />8,000 <br />9,000 <br />22,500 <br />7,000 <br />14,000 <br />14,000 <br />15,130 <br /> <br />$103,630 <br />