Laserfiche WebLink
OSTP Mound Design jJNIVERSITY - - <br /> Minnesota Pollutfon Worksheet OF MINNESOTA ` � '" <br /> Control Agency �'�\_' <br /> 1• SYSTEM SIZING: <br /> A. Design Ftow(Design Summary 1A): 150 GPD Table f <br /> bSOUND CONTOUR LOAt?ING RATES: <br /> B. Soii Loading Rate (Design Sum.2D): U.60 GPD/ft2 , contaur <br /> ti'eawrod TQxture-deriv�d <br /> ?src Ratg �R mound absorption ratio �oadir, <br /> C. Depth to limitin�g Condition: 1.3 ft , Rats: <br /> D. Percent Lond Slope (Design Sum.26): 5,0 % ��n,oi i.c, i.3.z.o.z.a,z.a <i2 <br /> E. Desi�n Media Loading Rote: 1.2 GPD/ft2 51-12G mpi oR s.0 <�z <br /> F. Mound Absorption Ratio: 2A = i2a n,a;� =s.o� _e• <br /> G. Design Contour Loading Rate: 12 GPD/ft <br /> 'Systems with these vatues are not Type 1 systems. <br /> (From Design Summary 2E-same as Linear Loading Rate) Contour Loading Rate is a recommended vatue. <br /> 2. DISPERSAL MEDIA SIZING <br /> A. Catculate Required Dispersa(Bed Area:Design Ftow (1.A):Design Media Loading Rate (1.E)=ftz <br /> If a larger dispersal media 150 GPD: 1.2 GPD/ftZ = 125.0 ftZ <br /> area is desired,enter size: q 30 ft2 <br /> S. Calcutate Dispersat Bed Width: Contour�oading Rate (1.G)=Design MediQ Loading Rate (1.t}=8ed Width <br /> 12 ft : 1.2 gpd/ftZ = 10.0 <br /> C. Calcutate Dispersa!Bed Length: Disperso(Bed Arev (2.A):Bed�dth (2.B}=Bed Length <br /> 130.0 ft2 = 10.0 ft = 13.0 ft <br /> D. Select Disperso(Media: � <br /> 3. ABSORPTION AREA SIZING <br /> Note:Mound setbacks are meQsured from the Absorption Area. <br /> A. Calculate Absorption�dth:Bed Width (2.6}X Mound Absorption Ratio (1.F)=Absorption�dth <br /> 10.0 ft X 2.00 = 20.0 ft <br /> B. For stopes from 0 to 1%, the Absorption Width is measured from the bed equally in both directions. <br /> Catculate Absorption Width Beyond the Bed:Absorption�dth (3.A)-Bed�dth (2.6)=2=Width beyond Bed <br /> ( N/A ft - N/A ft) : NIA = N!A ft <br /> C. For slopes>1%, the Absorption Width is measured downhilt from the upslope edge of the Bed. <br /> Calcutate Downsiope Absorption�dth:Absorption Width (3.A)-Bed�dth (2.B)=ft <br /> 20.0 ft - 10.0 ft = 10.0 ft <br /> Comments: <br /> Slope,CLR Choice,Materfal issues <br />