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OSTP Mound Design Worksheet _ <br /> Minnesota Pollution 0 UNIVERSITY �t' .- <br /> Control Agency >1 / Slope OF MINNESOTA �.�,�'_ <br /> 1. SY$TEM SIZING: ProjectlD: ���_p9,22 <br /> A. Design F(ow(Fiow 8 Soi!- i.A): 750 cPo TABLE IXa <br /> B. Soi(Loodtng Rate(Flow 8 Soil-3.C): 0.45 GPD/ftZ �',LOADING RATES FOR DETERMINING BOTTOM ABSORPTION AREA <br /> AND ABSORPT�ON RATIOS USING PERCOLATION TESTS <br /> C. Depth to Limiting Condition: 1.3 ft Treatment Level C Treatment Level A,A•2,e, <br /> D.Percent Land Slope: 12,0 % Percolauon Rate ���� Nound �S°rption �und <br /> � Area loading Area Loading <br /> � (MPI) Rate Absorption Rate Abwrption <br /> E. Design Media Loading Rate: 1.2 GPD/ftZ i ��k=� Rd°° ���ft,� aacio <br /> F. Mound Absorption Ratio(Table IXa): 2.60 I<«� - 1 - � <br /> IO.t ro 5 1.2 1 1.6 � <br /> G. Design Contour Loading Rate: 12.0 GPD/ft ' <br /> ;0 t to 5(hne sancl 0.6 2 1 1.6 <br /> Table I '�and�oa �ine sa <br /> MOUNU CONTUUR IVADINi.RATE4: '�iO�5 0.78 1.5 'I 1.6 <br /> Contour ��6to30 0.6 2 0.78 2 <br /> l.t9asurod OR Toxtura-dorived loading <br /> Ps�c Rato mound absa.ption ratio Rat�. 3i ro a5 0.5 2.4 0.78 2 <br /> a6 to 60 0.45 2.6 0.6 2.6 <br /> -60rn;� Lp. t.3.2.0. 2.d.2.6 _t. <br /> � loi to t20 - 5 0.3 5.3 <br /> 5�-�2urnpi OR 5.0 cl� >�20 - - - - <br /> =�Z����?�' -`��' -�' 'Systems wi[h these values are not Type I systems. Contour Loading Rate(linear <br /> 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 Rate (1.E)=ftZ <br /> If a targer dispersal media area 750 GPD: 1.20 GPD/ftZ = 625 ftZ <br /> is desired,enter size: <br /> �ftz <br /> B. Calcutate Disperso(Bed Width:Contour Loading Rnte (1.G):Design Media Loading Rate (1.E)=Bed Width <br /> 12.0 ft = 1.2 �pd/ftZ = 10 ft <br /> C. Calculate Disperwl Bed Length: Dispersol Bed Area (2.A):Bed Width (2.6)=Bed Length <br /> 625 ft2 : 10 ft = 63 ft <br /> D. Select Dispersal Media: <br /> E. If using a registered product,enter the Component Length: �i�: 12 = �ft <br /> F. If using a registered product,enter the Component Width: �in a 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 10.3 <br /> ga(/ft 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 /> �, Totot Number of Components =Number of Components per Row X Number of Rows <br /> � X � �components <br />