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� � OSTP Mound Design Worksheet <br /> Minnesota Pollution p <br /> UNIVERSITY <br /> Controi Agency >1 / Stope OF MINNESOTA �""'?',��;`�., <br /> �• SYSTEM SIZING: ProjeCt ID: v 11.09.22 <br /> A. Design F(ow(Flow&Soi(- 1.A): 750 GPD TABLE IXa <br /> B. Soil Loading Rate(Flow&Soi(-3.C): 0.45 GPD/ftZ LOADING RATES FOR DETERMINING BOTTOM ABSORPTION AREA <br /> AND ABSORPTION RATIOS USING PERGOLATION TESTS <br /> C. Depth to Limiting Condition: 1.5 ft Treatment Leve1 c Treatment Lcvel A,A•2,B, <br /> D. Percent Land S(ope: 12.0 % � Perco�ation Rate Absorptioo ���d nbso�onoo ��� <br /> Area Loading Area Loading <br /> ���� Ra[e Absorption Rate �SOfP�O� <br /> E. Design Media Loading Rate: 1.2 GPD/ftZ ' � <br /> (��RZ) Ratio ���ft� Ratio <br /> F. Mound Absorption Ratio(Tabte IXa): 2.60 I<o� . � _ � <br /> G.Design Contour Loading Rate: 12.0 GPD/ft o'`O 5 1.2 > >.s i <br /> �-0.�to 5(fine sand 0.6 2 1 1.6 <br /> Tabie 1 and ioamv I�ne sarxl <br /> 1AOUND CONTOUR LOADING R.1TE5; e t��� 0.78 �.5 � 1.6 <br /> s.oawrad ' Texturp-darivad <br /> �Cntaur ?o"to 30 0.6 2 0.78 2 <br /> Rprc Rais oR mound abso�pdon rat,o Loading .3;ro� <br /> . Fat4: 0.$ 2.4 0.78 2 <br /> �'���� 0.45 2.6 0.6 2.6 <br /> :b0�:i,'.. L0. i.i.2Q.'[.-1.L6 c 12 <br /> ,6�totZp _ 5 0.3 5.3 <br /> 51-12C mpi �R S.Q cti '>t?0 - ' ' ' <br /> = �=�'�"�" �`-'-� -h' 'Systems with 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. Catculate Required Dispersal Bed Areo:Design F(ow (1.A):Design Media Loading Rate (1.E)=ftZ <br /> If a larger dispersal media area 750 GPD: 1.20 GPD/ftZ = 625 ftZ <br /> is desired,enter size: ��ftz <br /> B. Calculate Dispersal Bed Width:Contour Loading Rate (1.G):Design Media Loading Rate (1.E)=Bed Width <br /> 12.0 ft : 1.2 gpd/ftz = 10 ft <br /> C. Calculate Dispersal Bed Length: Dispersal Bed Areo (2.A)=Bed Width (2.6)=Bed Length <br /> 625 ftz : 10 ft = 63 ft <br /> D. Select Dispersol 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 = Qft <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 wide bed. <br /> � ft: � ft= �� rows <br /> I, Toto(Number of Components =Number of Components per Row X Number of Rows <br /> � X � - ��components <br />