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UMIVHI6SITYqF'MI\\ESOfA <br /> � � <br /> Mound Design Worksheet -- � - � <br /> Minnesota Poilution � � -� � �� <br /> Control Agency - . - . �., __ _ . ���,4��, <br /> 1. SYSTEM SIZtNG' <br /> A. Design Ftow(F(ow Ft Soil - 1.A) : 750 GPD Table i <br /> t1vUNC}CfXiTUUR LUAGlNG RATES: <br /> B. Soil Loading Rote(Flow&Soi!-3.C): 0.60 GPD/ftZ �;,aasure� ' Texture-derivcd conto�r <br /> Perc P.ate CR mound aosorption ratio Loading <br /> C. Depth to Limiting Condition: 2.0 ft . Race: <br /> D. Percent Land S(ope: 12.0 ;� 560mpi �.o. �.a,Z.o,2.a,2.6 siz <br /> E. Design Media Loading Rate: 1.2 GPD/ftZ bt-120 mpi aR s.o :�2 <br /> F. Mound Absorption Ratio(1.E:1.6): 2.00 =iZa mp;• :5.0• �6• <br /> G. Design Contour Loading Rate: 12.0 GPD/ft <br /> 'Systems with these values are not Type 1 systems. <br /> (From Table I -same as Linear Loading Rate) Contour Loading Rate is a recommended value. <br /> 2. DISPERSAL MEDIA SIZING <br /> A. Catculate Required Dispersal Bed Area:Design Ftow (1.A) =Design Media Loading Rate (1.E) =ftz <br /> 750 GPD: 1.20 GPD/ftZ = 625.0 ftZ <br /> If a larger dispersal media <br /> area is desired, enter size: 630.0 ftZ <br /> B. Calculate Dispersv(Bed Width: Contour Loading Rote (1.G) =Design Media Loading Rate (1.E) =Bed Width <br /> 12.0 ft : 1.2 gpd/ftZ = 10.0 ft <br /> C. talcutate Dispersal Bed Length: Dispersal Bed Area (2.A) :Bed Width (2.6) =Bed Length <br /> 630.0 ft2 : 10.0 ft = 63.0 ft <br /> D. Setect Dispersa!Medio: ❑ROCk <br /> ❑Other Approved Media <br /> 3• ABSORPTION AREA SIZING <br /> Note:Mound setbocks are meosured from the Absorptian Aren. <br /> A. Calculate Absorption Width: Bed Width (2.B)X Mound Absorption Rotio (1.F) =Absorption Width <br /> 10.0 ft X 2.0 = 20.0 ft <br /> B. For slopes from 0 to 1%, the Absorption Width is measured from the bed equally in both directions. <br /> Calculate Absorption �dth Beyond the Bed: Absorption Width (3.A) -Bed Width (2.B) =2 = Width beyond Bed <br /> (�ft - �ft) '� = ft <br /> C. For slopes >1%, the Absorption Width is measured downhitt from the upslope edge of the Bed. <br /> Calcutate Downstope Absorption Width:Absorption Width (3.A) -Bed Width (2.B) =ft <br /> 20.0 ft - 10.0 ft = 10.0 ft <br /> Comments: <br /> Sfope, CLR Choice, Materia! issues <br />