Laserfiche WebLink
OSTP Mound Design Worksheet ? gx <br /> w UNIVERSITY x <br /> Minnesota Pollution >1% Slope OF MINNESOTA _ �" <br /> Control Agency «S <br /> 1• SYSTEM SIZING: Project ID: v 11.09.22 <br /> A.Design Flow(Flow It Soil- 1.A): 750 GPD TABLE IXa <br /> B. Soil Loading Rate(Flow&Soil-3.C): 0.60 GPD/ft2 LOADING RATES FOR DETERMINING BOTTOM ABSORPTION AREA <br /> AND ABSORPTION RATIOS USING PERCOLATION TESTS <br /> C.Depth to Limiting Condition: 2.0 it Treatment Level C Treatment Level A,A-2,B, <br /> Area Loadne <br /> D.Percent Land Slope: 6.0 % Percolation Rate Wound Mown <br /> (MPI) Rate Area LowlingAbsorPtion Rate Absorption <br /> E.Design Media Loading Rate: 1.2 GPD/ft2 (!&=) Ratio (tBdal=) Ratio <br /> F. Mound Absorption Ratio(Table IXa): 2.00 <o 1 1 - 1 <br /> 0.1 to 5 <br /> G.Design Contour Loading Rate: 12.0 GPD/ft 1.2 1 1.6 1o_t to 5(fine Sara <br /> Table I <br /> 0.6 2 1 1.6 <br /> and lou fine Sano <br /> MOUND CONTOUR LOADING RATES: 6 to 15 0.78 1.5 1 1.6 <br /> Contour 16 to 30 0.6 2 0.78 2 <br /> Measured Torture•derived � <br /> Perc Rate OR mound absorption rat' L°adnnS 31 to 45 <br /> Rate: 0.5 2A 0.78 2 <br /> 46 to 60 0.45 2.6 0.6 2.6 <br /> 60mpi 1.0,1.3,2.0,2.4.2.6 112 <br /> 61 to 120 5 0.3 5.3 <br /> 61.120 mpi OR 5.0 112 >120 <br /> 120 mpi• >5.0' 16 'Systems with these values are not T I <br /> Type systems. Contour Loading Rate(linear <br /> loading rate)is a recommended vatue. <br /> 2. DISPERSAL MEDIA SIZING <br /> A. Calculate Required Dispersal Bed Area:Design Flow (1.A)+Design Media Loading Rate (1.E)-ft2 <br /> If a larger dispersal media area 750 GPD 1.20 GPD/ft2 = 625 ft2 <br /> is desired,enter size: ft2 <br /> B. Calculate Dispersal Bed Width:Contour Loading Rate (1.G)+Design Media Loading Rate (1.E)=Bed Width <br /> 12.0 Ift + 1.2 gpd/ft2 = 10 ft <br /> C. Calculate Dispersal Bed Length: Dispersal Bed Area (2.A)+Bed Width (2.B)=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: in+ 12 = ft <br /> F. if using a registered product,enter the Component Width: 7in+ 12 = ft <br /> G.Number of Components per RowrBed Length (2.C)divided by Component Length (4.J)(Round up) <br /> IIft + �! ft= components/row <br /> H.Number of Rows =Bed Width (2.B)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 gal/ft results in 9 foot <br /> wide bed. <br /> it' ft= rows <br /> 1. Total Number of Components -(Number of Components <br /> er <br /> Components per ws <br /> r Row X Number of Ro <br /> IX 1 J = L�components <br />