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OSTP Mound Design <br /> UNIVERSITY <br /> Worksheet > I% Slope OF MINNESOTAControl Agemy <br /> 1. SYSTEM SIZING: Project ID: v 07.14.15 <br /> A. Design Flow: 750 GPD TA Ma <br /> B. Soil Loading Rate: 0.60 GPD/ft2 AaEA <br /> k <br /> C. Depth to Limiting Condition: 1.8 ft wo"aft Yrs <br /> kawle <br /> VaNdaAdle �M a6 . <br /> D. Percent Land Slope: 8.0 % a''► 11 <br /> AND am <br /> " ' <br /> E. Design Media loading Rate: 1.2 GPD/ft2 <br /> F. Mound Absorption Ratio: 2.00 0,1105 2 <br /> 1 b 5 o"send 0.6 2 1 1.6 <br /> -01111 In Xb 15 0.70 16 7 1.i <br /> 10b50 0.6 2 0.78 2 <br /> �� ~ TOO"•AMIMIA 311045 0 6 2+t 0.78 2 <br /> C+rtt�eldb6 OR <br /> -+ tow 481000 <br /> GAG 2A CA 2.6 <br /> S Bono 1.0. 1.3.2.0,2.4.2.6 %12 b 120 - 6 0.3 s.s <br /> s120 Li <br /> 61.120 mpi OR 5.0 s12 <br /> 'Systems with these values are not Type I systems. <br /> n 120 rw >s.o' s6• Contour Loading Rate (linear loading rate)is a <br /> recommended value. <br /> 2. DISPERSAL MEDIA SIZING <br /> A. Calculate Dispersal Bed Area: Design Flow+Design Media Loading Rate-ft2 <br /> T50 GPD + 1.2 GPD/ft2 - 625 ft2 <br /> If a larger dispersal media area is desired,enter size: ft2 <br /> B. Enter Dispersal Bed Width: 10.0 ft Can not exceed 10 feet <br /> C. Calculate Contour Loading Rate: Bed Width X Design Media Loading Rate <br /> 10 ft2 X 1.2 GPD/ft2 = 12.0 gal/ft Can not exceed Table 1 <br /> D. Calculate Minimum Dispersal Bed Length: Dispersal Bed Area +Bed Width -Bed Length <br /> 625 ft2 + 10.0 ft = 62.5 ft <br /> 3. ABSORPTION AREA SIZING <br /> A. Calculate Absorption Width: Bed Width X Mound Absorption Ratio -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 Downslope Absorption Width: Absorption Width - Bed Width <br /> 20.0 ft - 10.0 ft = 10.0 ft <br /> 4. <br /> DISTRIBUTION MEDIA: ROCK <br /> A. Media Volume:Media Depth X Length X Width <br /> 0.50 ft X 62.5 ft X 10.0 ft= 313 ft3 + 27 12 yd3 <br />