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I <br /> Pervious Land Use acre <br /> • C, Lawn, Flat .24 <br /> Pervious Total 0.24 <br /> Impervious Land Use acre <br /> SIDEWALKS FLAT 0.06 <br /> PARKING FLAT 0.78 <br /> Impervious Total 0.84 <br /> Basin Total 1.08 <br /> I <br /> Element Flows To: <br /> Surface Interflow Groundwater <br /> Surface retention 1 Surface retention 1 <br /> I/ <br /> Name : Bioretention 1 <br /> Bottom Length: 32.00 ft. <br /> Bottom Width: 12.00 ft. <br /> Material thickness of first layer: 1.5 <br /> Material type for first layer: SMMWW 12 in/hr <br /> Material thickness of second layer: 1.67 <br /> Material type for second layer: GRAVEL <br /> Material thickness of third layer: 0 <br /> 11 Material type for third layer: GRAVEL <br /> Underdrain used <br /> Underdrain Diameter (feet) : 0.67 <br /> Orifice Diameter (in.) : 8 <br /> Offset (in.) : 6 <br /> Flow Through Underdrain (ac-ft.) : 137.537 <br /> Total Outflow (ac-ft.) : 150.591 <br /> Percent Through Underdrain: 91.33 <br /> Discharge Structure <br /> Riser Height: 0.5 ft. <br /> Riser Diameter: 8 in. <br /> Element Flows To: <br /> Outlet 1 Outlet 2 <br /> i <br /> Bioretention 1 Hydraulic Table <br /> Stage(feet) Area(ac.) Volume(ac-ft.) Discharge(cfs) Infilt(cfs) <br /> 0.0000 0.0363 0.0000 0.0000 0.0000 <br /> 0.0458 0.0362 0.0001 0.0000 0.0000 <br /> 0.0916 0.0357 0.0002 0.0000 0.0000 <br /> 0.1375 0.0352 0.0003 0.0000 0.0000 <br /> Insight Engineering Co. -Stormwater Site Plan 12/20/2018 <br /> -37- <br /> I <br />