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,� <br /> � � <br /> �� OSTP Mound Desi n -�-�f� <br /> � . <br /> �--' UNIVERSITY � � �` <br /> Minnesota Pollution OF 11/IINNE50TA � t� �''�:;� <br /> Control Agency Worksheet - � y'`1..`•�., <br /> �. SYSTEM SIZtNG: <br /> A. Desiyn Flow(Design Summary 1A): 60fl GPD ab e I <br /> MOUND CaMOUR lOADING RATES: <br /> B. Sofl Looding Rate (Design Sum.2D): 0.45 GPD/ft2 Atcawrcd Texture-derived Contour <br /> Porc Ratv �R mound absorptlon raii �oadtng <br /> C. Depth to Limiting Condition: 0.3 ft _ Rat4: <br /> D. Percent Land 5lope (Destgn Sum. ze): 5.0 �; s�mpt i.o.i.a.z.o,z.a,z.e z�t <br /> E. Desiyn Med�a Looding Rote: 1.2 GPD/ft2 61-t20 mp1 oR s.o _�i <br /> F. Mound Absorptfon Ratio: 2.G =t2o mpi- :s.o� �6^ <br /> G.Desisn Contour Londing Rate: 12 GPD/ft •Systems with these values are not Type I systems. <br /> (From Design Summary 2E-same as Linear Loading Rate) Contour Laading Rate is a recommended value. <br /> 2. DISPERSAL MEDIA SIZING <br /> A. Calculate Required Dispersal Bed Aren:Design Flow (1.A)+Deslgn Media Lood�ng Rate (1.E)=ftZ <br /> if a larger dispersal media 600 GPD: 9.2 GPD/ftz = 500.0: ftx <br /> area is desired,enter size: ��Z <br /> B. Calculate Dlspersa(8ed Wfdth:tontour Loading Rote (1.G):Design Media Loading Rcte (1.E)=Bed Width <br /> 12 ft = 1.2 gpd/ft� = 10.0 <br /> C. Calculate Dispersal Bed Length: Dispersai Bed Area (2.A):-8ed Wfdth (2.6)=Bed Length <br /> 500.0 f� = 10.0 ft = 50.0 Fe <br /> D. Select Dispersal Media: r- <br /> 3. ABSORPTION AREA SIZING <br /> Note:Mound setbQcks are meusured from the Absorption Areo. . <br /> A. Calculate A6sorption Wldth:Bed Width (2.B)X Mound Absorption Ratlo (1.F)=Absorption W3dth , <br /> 10.0 ft X 2.60 = 26.0 ft <br /> B. For slapes from 0 to 196, the Absorptfon IA�idth is meawred from the bed equalty in both directions. <br /> Calculate Absorptlon Width Beyond the Bed:Absorption Width (3.A)-Bed Width (2.6)+Z=Width beyond 8ed <br /> ( NfA tr - N/A ft) + N/A = N/A h <br /> C. For slopes>1�, the AbsorpHon Yl�idth is measured downhill from the upslope edge of the Bed. <br /> Calculate Downs(ope Absorption Width:Absorpdon Width (3.A)-Bed�dth (2.6)=ft <br /> 26.0 ft - 10.0 fc = 16.0 ft <br /> Comments: <br /> Slope, CLR Choice,Moter►a!issues <br />