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OSTP Mound Design Worksheet <br /> Minnesota Poliution p UNIVERSITY ' � '`"� _ <br /> Controt Agency >1 / Slope OF MINNESOTA �.�`��, <br /> 1• SYSTEM SIZING: Project ID: v 11.09,22 <br /> A. Desiqn Flow(Ftow&Soil- 1.A) : 750 �Po TABLE IXa <br /> B. Soi!Looding Rate(F(ow&Sai(-3.C): 0.45 GPD/ftZ LOADING RATES FOR DETERM�NING BOTTOM ABSORPTION AREA <br /> AND ABSORPTION RATIOS USING PERCOLATION TESTS <br /> C. Depth to Limiting Condition: 1.3 ft Treatment Level C Treatment Level A,A•z,B, <br /> Absorptlon Absorption <br /> D. Percent Land S(ope: 9.0 % Percolation Rate Area LoaQing ""DO"d Area Loading A°O°"d <br /> ��� Ra[e ����� Rate ���bO� <br /> E. Desiqn Media Loading Rate: 1.2 GPD/ftZ ! ��k=� R°d° ���k,� aat'° <br /> F. Mound Absorption Rotio(Table IXa): 2.60 '��� - � - � <br /> eitos �.2 � i.s i <br /> G. Design Contour Loading Rate: 12.0 GPD/ft �i�o s�r�sar,a <br /> Tabl'r I �a�d loamv hne sand 0.6 2 1 �.6 <br /> 1d0UND CpNTOUR LOAUING RATES: �to�5 078 1.5 1 �.s <br /> rtna>ured ' Tezture-d�rived �cnteu� �u to 30 0.6 2 0.78 2 <br /> aorc Rate `=R mound absorp[ion ratio ��adir.g 3i�o a�, 0.5 2.4 0.78 2 <br /> . kai9: <br /> �'�.46 to 60 0.45 2.6 0.6 2.6 <br /> _bOn;p1 i.0, t.3.2.0. t.-l.2.5 _72 <br /> 6t to t20 - 5 0.3 5.3 <br /> 51-RCmpt OF 5.0 ct% .>120 ' - - ' <br /> � i:u r,�pi' s.e' _6' 'Systems with these values are not Type i rystems. Contour Loading Rate(linear <br /> loading rate)is a recommended vatue. <br /> 2. DISPERSAL MEDIA SIZING <br /> A. Calcutate Required Dispersa(Bed Area:Design F(ow (1.A):Design Media Loading Rote (1.E)=ftZ <br /> If a larger dispersal media area 750 GPD: 1.20 GPD/ftZ = 625 ft2 <br /> is desired,enter size: �ft2 <br /> B. Calcutate Dispersal Bed Width:Contour Loading Rate (1.G):Design Media Loadinq Rate (1.E)=Bed Width <br /> 12.0 ft = 1.2 gpd/ft2 = 10 ft <br /> C. Calcutate Dispersal Bed Length: Dispersal Bed Area (2.A)=Bed Width (2.6)=Bed tength <br /> 625 ft2 : 10 ft = 63 fc <br /> D. Select Dispersal Media: <br /> E. If using a registered product,enter the Component Length: �in= 12 = �ft <br /> F. If using a registered product,enter the Component Width: �in: 12 = �ft <br /> G. Number of Components per Row =Bed Length (2.C)divided by Component Length (4.J) (Round up) <br /> �� ft : � ft= �components/row <br /> H. Number of Rows =Bed Width (2.6)divided by Component Width (4.K) (Round up) Note:CLR of f0.3 <br /> gallft results in 9 foot <br /> Adjust Contour Loading Rate on Design Summary page until this number is a whole number �de bed. <br /> �� ft= � ft= � rows <br /> �, ToYa(Number of Components =Number of Components per Row X Number of Rows <br /> � X �� �components <br />