Laserfiche WebLink
� <br /> ... .. ...:... ... <br /> j�:s�Te :.;. <br /> � Mound Desi n Worksheet ��WA�E `, <br /> Minnesota Pollution � • - <br /> Control Agency �'���� <br /> � 1. SYSTEM SIZING: <br /> A. Design F(ow(F(ow&Soi( - 1.A) : 600 GPD Table I <br /> MOUNU CONTOUR LOADING RATES: <br /> � B. Soi!Loading Rate(F(ow&Soi!-3.C): 0.45 GPD/ftz , contour <br /> �teawred Texture-deaived <br /> Perc Rat2 �R mound absorptian ratio Loading <br /> C. Depth to Limiting Condition: 2.5 ft . Ratc: <br /> � D. Percent Lond Slope: 5.0 % �50mp� t G, 1 3. 2 0. 2.�. 2.5 e 12 <br /> E. Design Media Loading Rate: 1.2 GPD/ft2 61-12G mpi eR S c _�z <br /> � F. Mound Absorption Ratio(1.E:1.6): 2.67 , �Za,,,�;• ,s �• ;5= <br /> G. Design Contour Loading Rote: 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. DISPERSAL MEDIA SIZING <br /> � A. Calculate Required Dispersa(Bed Area: Design Flow (1.A) : Design Media Loading Rote (1.E) = ftz <br /> 600 GPD : 1.20 GPD/ft2 = 500.0 ft2 <br /> If a larger dispersal media <br /> area is desired, enter size: �ftZ <br /> � B. Calculate Dispersa(Bed Width: Contour Looding Rate (1.G) =Design Media Loading Rate (1.E) = Bed Width <br /> 12.0 ft : 1.2 gpd/ft2 = 10.0 ft <br /> 1 C. Calculate Dispersal Bed Length: Dispersal Bed Area (2.A) : Bed Width (2.B) = Bed Length <br /> 500.0 ft2 : 10.0 ft = 50.0 ft <br /> ' D. Select Dispersal Medio: �❑ROCk <br /> ❑Other Approved Media <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 2.7 = 26.7�. ft <br /> � B. For slopes from 0 to 1%, the Absorption Width is measured from the bed equally in both directions. <br /> Calculate Absorption Width Beyond the Bed: Absorption Width (3.A) - Bed Width (2.6) =2= Width beyond Bed <br /> (�ft - �ft) =� - ft <br /> � C. For slopes>1%, the Absorption Width is measured downhill from the upslope edge of the Bed. <br /> Calculate Downslope Absorption Width: Absorption Width (3.A) - Bed Width (2.6) =ft <br /> � 26.7 ft - 10.0 ft = 16.7 ft <br /> Comments: <br /> � 5(ope, CLR Choice, Material issues <br /> � <br /> � <br />