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� <br /> ��. OSTP Mound Design UNIVERSITY <br /> �+�����0� Worksheet > 1 % Slope OF MINNESOTA ''�-,��, <br /> �""� i. SYSTEM SIZING: Project ID: v 07.14.15 <br /> A. Qesign Flow: ��o GPD TABLE IXa <br /> B. Soil Loading Rate: 0.45 GPD/ftZ L�����FOR DE�ERMpolNG QOTTOM AdSORPTION ARlA <br /> AND ABSORPTI�M RA110S U51NG PERCOI,.ATION TES75 <br /> T1Yume�K Le�M C aadMM L�M�,M3.9. <br /> C. Depth to Limiting Conditian: 1.2 ft <br /> P�erao�atlan Raoe � � "bva°tlo" �ao�a <br /> D. Percent Land Slope: 10.0 % tAA°'� r�e "°�°" rr..o. ""'�0" <br /> t�+�) rtan° �s�'1 R'ec° <br /> E. Design Media l.oading Rate: 9.2 GPD/ftZ _ _ <br /> �� 1 1 <br /> F. Mound Absorption Ratio: 2.60 01 to5 �•2 � �•s � <br /> t W 5(fine esnd 0.8 2 1 1.6 <br /> TaWel anabs ru,ese <br /> AAOtA�Q CONTfHJR LQADfNCs RATEr• s to,s o.7e �.s 1 1.d <br /> ���. �s eo ao o.s z o.�s 2 <br /> Mouurod • Taacwro-dorivad s,oo as o.s z.a oas 2 <br /> Porc Rato � mo�rW abso�ptioe�r � <br /> ��� 0.46 2.8 0.8 26 <br /> s 60mpi f.0, 1.3.2.0.2.a.2.6 :12 61�120 . 5 0.8 AS <br /> , >azo - - - - <br /> e�-izo nn�,i � 5.0 =12 •Systems with these values are not Type I s tems. <br /> � <br /> a�2a mpi' ;s.o• _6• Contour Loading Rate {linear loading rate)is a <br /> recommended value. <br /> 2. DISPEltSAL MEDIA SIZING <br /> �. <br /> A. Cakulate Dispersal B�1 Area: Design Flow= Design Media Loading Rate=ft2 <br /> 750 GPD 1 1.2 GPDlft2 = 625 ft2 <br /> If a larger dispersat rnedia area is desired, enter size: 630 ft� <br /> B. Enter Dispersal Bed Width: 10.0 ft Can not exceed 10 feet <br /> C. Calculate Contour Loading Rate: Bed Widtf� X Design Medfa Loading Rate <br /> 10 f� X 1•2 GPD/ftZ = 12.0 gal/ft Can rrot exceed 7able 1 <br /> D. Catculate Mfinimum Dispersa!Bed Length: Dispersat Bed Area + Bed Width = Bed Length <br /> 630 ft2 = 10.0 ft = 63.0 ft <br /> . 3. ABSORPTION AREA SIZtNG <br /> A. Gatculate Absorption Width: Bed Width X Mound Absorption Ratio =Absorption Width <br /> 10.0 ft X 2.6 = 26.0 ft <br /> 8. For slopes>1%, the Absorption Width is measured downhill from the upslope edge of the Bed. <br /> Catculate Downslope Absorption Width: Absorption Width - Bed Width <br /> 26.0 ft - 10.D ft = 16.0 ft <br /> DISTRIBUTION MEDIA: ROCK <br /> A. Media Volume: Media Depth X Length X Width <br /> `'��.._ <br /> 0.50 ft X 63.0 ft X 10.0 ft= 315 ft3 - 27 = 12 yd3 <br />