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OSTP Mound Design . <br /> UNIVERSITY ,���` '``t• � x <br /> MinnesotaPollutian Worksheet > � % Slope OFMINNESOTA . ��.,,y <br /> Cont�ol Agency <br /> 1. SYSTEM SIZING: Project ID: v 07.14.15 <br /> A. Desig�� Ftow: boo GPD TABLE IXa <br /> B. Soii Loading Rate: 0.45 GPD/fLt i�OADING RATES POli DETERMINING SOTTOM ABSORPTION AREA <br /> � AND A850RPTION RATI05 USING PERCOUTION TESTS <br /> Trc�tmem level t Tre�Gnen[Leve1 A,A-2,E, <br /> C. Depth to Limiting Condition: 1.2 ft i ��� ��� <br /> j va�oo++nw,e.0 Mawa Awu�a <br /> Area l.pd��� ��� Area l.oadin� ��� <br /> Q. Percent Land Slope: 9.0 � � �#AP1� wu n.0 <br /> ��,� a.sw ��,� ruao <br /> E. Design Media Loading Rate: 1.2 GPD/ftZ ���, . � _ � <br /> F. Mound Absorption Ratio: 2.60 01`°` �� ' �6 � <br /> ^t ro 5 i��re caro 0.6 2 1 �.6 <br /> TdbIP I a�+a ixm,r,•,e aana! <br /> MOUNU CONTOUR LOAbING RATES: i`"c'� 0.78 1.6 t 1.s <br /> Coniwr <br /> ��'c a= 0.6 2 OJ8 Z <br /> n+oaw�ad ' Tcatuic+•dt�ivad <br /> ✓orc Rato � nwund abwrpnon ratw �O�"'g "1°`� o.s 2.a o.�a 2 <br /> . �(�' ��=•^�* 0.46 2.6 0.6 T.0 <br /> . � I�'��"�' • 6 O.J 5.3 <br /> -6Cn��t�! 1.C. I 3 2.0 2.J. 2.6 _1. <br /> 6i-t10�ipi tlR S.0 ct1 <br /> . `Systems with these values are not Type I systems. <br /> _ i2c��,,:��• ,, �,• _6. Contour Loading Rate (tinear toading rate) is a <br /> recommended value. <br /> 2. DISPERSAL MEDIA SIZING <br /> A. �atculate Dispersal Bed Area: Design Ftow = Design Media Loading Rate = ft` <br /> 600 GPD = 1.2 Gp0/ft' = 500 ft' <br /> If a targer dispersal media area is desired, enter size:�ftZ <br /> B. Enter Dispersal Bed Width: 10.0 ft Con not exceed 10 feet <br /> C. Calculate Contour Loading Rate: Bed Width X Design Media Loading Rate <br /> j� ft` X �•Z GPd/ftZ = 12.0 gaUft Can not exceed Table 1 <br /> D. Calculate Minimum Dispersal Bed Length: Dispersat Bed Area = Bed Width = Bed Length <br /> 5� ft` = 10.0 ft = 50.0 ft <br /> 3. ABSORPTION AREA SIZING <br /> A. Catcutate Absorption Width: Bed Width X Mound Absorption Ratio =Absorption Width <br /> 10.0 ft X 2.6 = 26.0 ft <br /> B. For stopes>1%, the Absorption Width is measured downhill from the upslope edge of the Bed. <br /> Calculate Downstope Absorption Width: Absorption Width • Bed Width <br /> 26.0 ft - 10.0 ft = 16.0 ft <br /> 4. DISTRIBUTION MEDIA: ROCK <br /> A. Media Volume: Media Depth X Length X Width <br /> 0.50 ft X 50.0 ft X 10.0 ft = 250 ft' = 27 = ��y�13 <br />