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. _ OSTP Mound Design Worksheet <br /> �� UNIVERSITY �'� �`�� <br /> Minnesota Pollultion �1% S�Qn ei OF MINNESOTA R � ' <br /> Control Agency f'' � �+_��- <br /> 1. SYSTEM SIZING: Project ID: v 11.09.22 <br /> A.Design Flow(F(ow&Soil- 1.A): 750 cP� TABLE IXa <br /> B. Soi(Loading Rote(F(ow&Soi(-3.C): �.60 GpD/ft2 �OADING RATES FOR DETERMINING BOTTOM ABSORPTION AREA <br /> ANO ABSQRPTION RATIOS USING PERGOLATION TESTS <br /> C. Depth to Limiting Cor�itlon: 2.3 ft rrean�arc�e.,e�c TreatmeiK Lavel A,�-z,s, <br /> D.Percent Lund Slope: 4.0 % rerco�ar�on rtare M� n�,a ��� u,bu,a <br /> ��� Rate � Rate �O^ <br /> E. Design Media Loading Rote: 1.2 GPD/ftZ t�arrt�f a'bo tw��) �O <br /> F.Mound Abwrpt}on Rntio(Table IXa): 2.00 �o� - � - � <br /> O.�to5 1.2 � �.6 � <br /> G.Desfgn Contour Loading Rote: 12.0 GPD/ft ,o.�co 5�rine sand <br /> 0.6 2 1 1_6 <br /> Table i 'aria ba tine sa <br /> MOUND�ONTOUR LOAOING RATES: fi to�5 0.78 1.5 � 1.6 <br /> Moawrod • Toxture-daivAd Contour �t6 ro 30 0.6 2 0.78 2 <br /> Part RaW � n�aad absotpEion ra' ��°��� �31 ro 45 0.5 2A 0.78 2 <br /> �46 ta 60 0.45 2.6 0.6 2.6 <br /> s 6pntpi 1.0.1.3.2.0.2A,2.6 -12 <br /> � I��o�� - 5 0.3 6.3 <br /> 6i-126mpi OR SA s12 I'i20 - - . - <br /> �i io mpi• :s.o' _b' '$ysterr�s with these values are rat Type i systems. Contour Loading Rate(linear <br /> loading rate)is a recommended vatue. <br /> 2. DISPERSAL MEDIA SIZING <br /> A. Calculate Required Dfspersal Bed Area:Design Flow (1.A):Design Media Londing Rote (1.E)=ftZ <br /> If a larger dispersal rt�dia area 750 GPD+ 1.20 GPD/ftZ = 625 ftZ <br /> is desired,enter size: �ft� <br /> B. Calculate Disperso!Bed Width:Conta�r Londing Rote (1.G):Design Media Loading Rnte (1.E)=Bed Width <br /> 12.0 ft : 1.2 �d/ft2 = 10 ft <br /> C. Calculate Dispersal Bed Length: Dispersal Bed Area (2.A):Bed Width (2.6)=Bed Length <br /> 625 ft2 = 10 ft = 63 ft <br /> D. Setect Dispersa!Media: rOCk <br /> E. If using a registered product,enter the Component Length: ��in= t2 = �ft <br /> F. If�ing a registered product,enter the Component Width: �i�= 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 =BQd Width (2.6)divided by Component Width (4.K)(Round up) Note:CLR of 10.3 <br /> Adjust Contour Loadimg Rate on Design Summary page until this number is a whole number Sel/ft rew(ts in 9 foot <br /> wide bed. <br /> � ft: � ft= �� rows <br /> �, Tota!Number of Components =Number of Compo�nts per Row X Number of Rows <br /> � X � - �componenu <br />