Laserfiche WebLink
� OSTP Mound Design <br /> UNIVERSITY \ <br /> Minnesota Pollution �/orksheet > 1 % Stope OF MINNESOTA '"^ <br /> Control Agency .�,,;�,,�.�, <br /> 1• SYSTEM SIZING: v 11.05.31 <br /> A. Design Flow(F(ow&Soit- 1.A) : 600 GPD Tabie I <br /> t.10UNR CONTVUR LUADING RATE): <br /> B. Soil Loading Rate(Flow&Soil-3.C): 0.60 GPD/ftz �,�qasurad ` Texture-de+ivcd contour <br /> ?erc Rate ��� mound absorption ra[io Loading <br /> C. Depth to Limiting Conditron: 2.2 ft . r�c9: <br /> D. Percent Land Slope: 2,Q % =hOiiiD' 1.G. 1.3. L0. 2.-i. Zh c i2 <br /> E. Design Media Loading Rate: 1.2 GPD/ftZ ��-�z0 mpi oR s.o .,z <br /> F. Mound Absorption Ratio(Table IXa): 2.00 - �Zp�}p�� S�,• �5• <br /> G. Design Contour Loading 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 vatue. <br /> 2. DISPERSAL MEDIA SIZING <br /> A. Catculate Required Dispersot Bed Area:Design F(ow (1.A):Design Media Loading Rate (1.E) =ft2 <br /> If a larger dispersat media 600 GPD: 1.20 GPD/ftZ = 500 ftz <br /> area is desired, enter size: 500 ftZ <br /> B. Calcu(ate Dispersa(Bed Width: Contour Loading Rate (1.G):Design Media Looding Rate (1.E) =Bed Width <br /> 12.0 ft : 1.2 gpd/ftZ = 10 ft <br /> C. Calculate Dispersal Bed Length: Dispersa(Bed Area (2.A) :Bed Width (2.B) =Bed Length <br /> 500 ftZ : 10 ft = 50 ft <br /> D. Select Dispersal Medra: � Roc k <br /> (-' Other Approved Media Rock <br /> 3. ABSORPTION AREA SIZING <br /> Note:Mound setbacks are measured from the Absorption Area. <br /> A. Calculate Absorption Width: 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 Bed. <br /> Calculate Downs(ope Absorption Width: Absorption Width (3.A) - Bed Width (2.6) =ft <br /> 20.0 ft - 10.0 ft = 10.0 ft <br /> Comments: <br />