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Review File: Woodlands 4th Addition <br />Final Plat <br />Engineering Review <br />May 4, 2017 <br />Page 3 of 3 <br />Infiltration volume 5,554 cubic feet <br />required <br />Subcut for sand liner 1 foot <br />Total Excavation 8331 Cubic feet or 309 CY <br />Grading Unit Cost $15/ Cubic Yard <br />Grading Cost <br />Liner Volume 103 Cubic Yard <br />Liner Unit Cost $30/ Cubic Yard <br />Liner Cost <br />Seeding Cost <br />Subtotal <br />Total With 15% Contingency <br />$ 4,630 <br />$ 3,090 <br />$ 400 <br />$ 8,150 <br />$ 9.370 <br />The stormwater summary included P8 model data showing the site provides the necessary Total <br />Suspended Solids and Total Phosphorus removals. <br />