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OSTP Mound Design Worksheet �� <br /> Minnesota Pollutlon p UNIVERSITY �, . �, <br /> >1 / Stope OP IVIINNESOTA ��` <br /> Control Age�cy '��� <br /> 1. SYSTEM SIZING: Project ID: v 11.09.22 <br /> A.Design F[ow(F(ow&Soil- 1.A): 600 GPD TABLE IXa <br /> B. Soil Loading Rate(F(ow&Soil-3.C): 0.60 GPD/ft2 LOADING RATES fOR DETERMINING BOTTOM ABSQRPTION AREA <br /> AND ABSORPTION RATI05 USING PERCOLATION TESTS <br /> C.Depth to Limiting Condition: 1.2 ft T«+cm�M�eve�c TreatmaM t.evel A,n-z,e, <br /> D.Percent Land Slope: 7,0 % ; Percolntion R�te ^�Ofp`�O" �n„�,d "�Df�O" ►ao�„e <br /> � (�� Area LwCin; Absorption Area LoaOin� �� <br /> Rate Rate= R� <br /> E. Design Medfo LoQding Rate: 1.2 GPD/ft2 j ��e=� R'°O ��airt? <br /> F. Mound Abwrption Ratio(Table IXa): 2.�� <o a _ � _ � <br /> G.Design Contour Loading Rate: 12.0 GPD/ft lo.i co s �.2 � �.s � <br /> �IO 1 to 5(firre 5aM 0.6 2 1 1.6 <br /> Table i �ana loa fine sand <br /> MOUND CONTOUR LOADING RATES: s to�s 0.78 1.5 � 1.6 <br /> tiWawrod ' Tax Wro-dnrivad Contour �s to 30 0.6 2 0.76 2 <br /> pR �oading <br /> Parc Rato moUnd ab50rptiOn ratio �to: �3i to 45 0.5 2.4 OJ8 2 <br /> �i48 to 80 0.45 2.6 0.6 2.6 <br /> `_60nip; t.0. 1.3.2.0.2.J.2.5 _12 <br /> '6i to t20 - 5 0.3 5.3 <br /> 61•I20mpi OR 5A .12 >'120 _ _ . _ <br /> , tzo mpi •s.G' ch' 'Systems wich these values are not Type I rystems. Contour Loading Rate(linear <br /> loading rate)is a recommended value. <br /> 2. DISPERSAL MEDIA SIZING <br /> A. Calculate Required Dispersal Bed Area:Desiqn Flow (1.A)=Design Media Looding Rate (1.E)=ftZ <br /> If a larger dispersal media area 600 GPD= 1.20 GPD/ftZ = 500 ftZ <br /> is desired,enter sae: <br /> ftZ <br /> B. Calculate Dispersa(Bed Width:Corttour Loading Rate (1.G)=Des9gn Media Loading Rote (1.E)=Bed Width <br /> 12.0 ft : 1.2 gpd/ft2 = 10 ft <br /> C. Calculate Dispersat Bed Length: Dispersa(Bed Area (2.A)=Bed Width (2.B)=Bed Length <br /> 500 ftZ : 10 ft = 50 ft <br /> D. Select Dispersn!Medio: <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 r 12 = �ft <br /> G. Number of Components per Row=Bed Length (2.C)divided by Component Lenqth (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 /> Adjust Contour Loading Rate on Design Summary page until this number is a whole number Q°��f=resu(ts in 9 foot <br /> wide bed. <br /> � ft+ � ft= � rows <br /> �, Totvl Number of Components =Number of Components per Row X Number of Rows <br /> � X � �components <br />