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� S�iE i� <br /> . OSTP Mound Design Worksheet <br /> LINIVERSITY � � <br /> Minnesota Pollution >1% Stope OF MINNESOTA <br /> Control Agency ,�,�,;,� <br /> 1. SYSTEM SIZING: Project ID: v 11.09.22 <br /> A. Desiqn Flow(Flow&Soit- 1.A): 750 GPD I 1'ABLE ��(a <br /> B. Soil Loading Rate(Flow&Soil-3.C): 0.60 GPD/ftz !LOADING RATES FOR DETERMINING BOTTOM ABSORPTION AREA <br /> AND ABSORPTION RATIOS USING PERCOLATION TESTS <br /> C. Depth to Limiting Condition: 1.7 ft I Trcaemenc�e�i c TreatmeM Level A,A-2,a, <br /> D.Percent Land S(ope: 15.0 % j Percolation Rate Atisorp4on r„b,,,,a Abio�nO" �„�,,,,� <br /> ���� Area loading Absorptlon Area Loading �tion <br /> E. Design Media Loading Rate: 1.2 GPD/ftZ ! ��ft:� Ra� ��ft,� easio <br /> F. Mound Absorption Ratio(Table IXa): 2.00 !<o, _ � _ � <br /> G.Design Contour Loading Rate: 12.0 GPD/ft ''o,�o s �_2 i �.6 � <br /> � <br /> i0 1 to 5(fine sand 0.6 2 1 1.6 <br /> Table 1 �,'and ioa hre sa <br /> MOUND CflNTOUR I.UADlNG RATES: i6 to t5 0.78 1.5 1 1.6 <br /> �r,pawrod ' Tox[uro-de�iv2d Contour ii6 to 30 0.6 2 0.78 2 <br /> D�rc Rate �R mound abso+p[ion ratio �`�ding �3�to a5 <br /> . Rate: 0.5 2.4 0.78 2 <br /> 46 to 60 0.45 2.6 0.6 2.6 <br /> _60mpf t.0, �.3.2.6.2.�.2., ct2 <br /> , st to 120 - 5 0.3 5.3 <br /> hl-t2Gmpi C.n 5.0 cii :�»20 - - - - <br /> = �`�'���p'' 'S�' =h' 'Systems with these values are not Type I systems. Contour Loading Rate(linear <br /> loading rete)is a recommended value. <br /> 2. DISPERSAL MEDIA SIZING <br /> A. Catcutate Required Dispersal Bed Area:Design Flow (1.A)�Uesign Media Lovding Rate (1.E)=ftZ <br /> If a larger dispersat media area 750 GPD: 1.20 GPDlftZ = 625 ftZ <br /> is desired,enter size: ��ft2 <br /> B. Calculate Dispersai Bed Width:Contour Loadinq Rate (1.G)e Design Media Loading Rate (1.E)=Bed Width <br /> 12.0 ft : 1.2 gpdift� = 10 ft <br /> C. Calculate Dispersa!Bed Length: Dispersal Bed Area (2.A)�Bed Width (2.6)=Bed Length <br /> 625 ftZ : 10 ft = 63 ft <br /> D. Select Dispersa(Media: ROCk <br /> E. if using a registered product,ente�the Component Length: ��in: 12 = ��ft <br /> F. If using a registered product,enter the Component Width: C�in: 12 = C�ft <br /> G. Number of tomponents 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 /> gal/ft resu(ts 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, Total Number of Components =Number of Components per Row X Number of Rows <br /> �� X �� _ ��components <br />