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. . . . o <br /> � OSTP Mound Design <br /> UN IV"ERSITY <br /> Minnesota Pollution �yorksheet > 1% Slope OF �11NrTESOTA <br /> Controi Ag�ncy - <br /> 1. SYSTEM SIZING: v 11.05.31 <br /> A. Design Flow(Flow&Soi(- 1.A) : 750 GPD 'r - <br /> . �ri� ,,, . _ i, __-�, <br /> B. Soit Looding Rate(Flow 8 Soi!-3.C): 0.60 GPD/ftZ _ ..1 _ _ _ -- <br /> C. Depth to Limiting Condition: 1.6 ft � }�� .� - � ' ~-� <br /> D. Percent Land 5lope: 8.0 % . � . _ . <br /> E. Design Media Loading Rate: 1.2 GPD/ftZ - - • - " • <br /> F. Mound Absorption Rotio(Tabte IXa): 2.00 . . - - <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�inear Loading Rate) Contour Loading Rate is a recommended value. <br /> 2. DISPERSAL MEDIA SIZING <br /> A. Calculate Required Dispersol Bed Area:Design Flow (1.A):Design Media Loading Rate (1.E)=ft2 <br /> If a larger dispersat media 750 GPD= 1.20 GPO/ftZ = 625 ft2 <br /> area is desired,enter size: �ft2 <br /> B. Calculate Dispersal Bed Width: Contour Loading Rate (1.G):Design Media Looding Rate (1.E)=Bed Width <br /> 12.0 ft = 1.2 gpd/ft2 = 10 ft <br /> C. Calculate Dispersa(Bed Length: Dispersa!Bed Area (2.A):Bed Width (2.6)=Bed Length <br /> 625 ft2 = 10 ft = 63 ft <br /> D. Select Dispersal Media: Rock <br /> Other Approved Media Rock <br /> 3. pgSORpT�ON AREA SIZING <br /> Note:Mound setbacks nre measured from the Absorption Area. <br /> A. Calculate Absorption Width:8ed Width (2.B)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 /> Catculate Downs(ope Absorption Width:Absorption wdth (3.A) - Bed Width (2.6)=ft <br /> 20.0 ft - 10.0 ft = 10.0 ft <br /> Comments: <br /> Stope, CLR Choice,Material issues <br />