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� OSTP Mound Design <br /> � UNIVERSITY ,`° %�� <br /> Mi�nesota Poilution �/orksheet > 1% Stope OF MINNESOTA ,.,x`� ���"""�' <br /> Control Agency .,��� <br /> �• SYSTEM SIZING: v 11.05.31 <br /> A. Design Flow fFlow&Sorl- 1.A) : 750 GPD Tabie i <br /> MOUND CONTOUR LOADING RATES: <br /> B. Soi(Loodinq Rute(F(ow&Soil-3.C): 0.60 GPD/ft1 , conco�,r <br /> Mcawrad Toxturc-darivod <br /> Derc Ratc �R nwund absorption rati �oading <br /> C. Depth to Limiting Condition: 1.5 ft �t,; <br /> D.Percent Land Slope: 5,Q % =60rnpi 7.0. 1.3.2.0,2.�,2.6 -12 <br /> E. Design Medio toading Rate: 1.2 GPD/ft2 bt-�20 mpi oR s.o <u <br /> F. Mound Absorptron Ratio(Table IXa): 2.00 : �20 mpi' -5.0' -e� <br /> G. Des9gn Contour Looding Rate: 12.0 GPD/ft <br /> 'Systems with these values are not Type I systems. <br /> (From Table I -same as Linear Loading Rate) Contour Loading Rate is a recommended value. <br /> 2. DISPEitSAL MEDIA SIZING <br /> A• Catcutate Required Dispersa(Bed Area:Design F(ow (1.A):Design Media Loading Rate (1_E}=ft2 <br /> If a targer dispersal media 750 GPD= 1.20 GPD/ftZ = 625 ft2 <br /> area is desired,enter size: 630 ft2 <br /> B. Calculate Dfsperwl 8ed Width:Contour Loading Rate (1.G):-Design Media Loading Rote (1.E)=Bed W1dth <br /> 12.0 ft = 1.2 gpd/ftZ = 10 ft <br /> C. Calculate Dispersal Bed Length: Dispersa(8ed Areu (2.A)=Bed�dth (2.6)=8ed Length <br /> 630 ftZ = 10 ft = 63 ft <br /> D. Select Dispersol Media: ❑RoCk <br /> ❑Other At�proved Media <br /> 3• ABSORPTfON AREA SIZING <br /> Note:Molind setbocks are mevsured from the Absorption Area. <br /> A. Calculate Absorption Yl�idth:Bed Width (2.6)X Mound Absorption Ratio (1.F)=Absorption Width <br /> 10.0 ft X 2.0 = 20.0 ft <br /> B. For slopes>1%,the Absorption Width is measured downhill from the upslope edge of the eed. <br /> Calculate Downslope Absorption Width:Absorption Width (3.A) -Bed�dth (2.6)=ft <br /> 20.0 ft - 10.0 ft = 10.0 ft <br /> Comments: <br /> S[ope, CLR Choice,Material iswes <br />