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� � � � _ OSTP Mou nd Design - . <br /> � MinnesotaPoltution O UNIti'ERSITY � ^ <br /> � <br /> Worksheet > 1 / Slope '��' <br /> Convol Ageacy OF �il\Ii,CSOTA ;:��y��:;Y <br /> � <br /> 1. SYSTEM SIZING: Projectlfl: 07082016E v 04.20.2016 <br /> -----__... _..------.... ..�_._...... .........___--...._..__ .. <br /> A. Design Flow: 'I50 c�� TABLE IXa <br /> �. Soii Loading Rate' O.GO GPO/ft' LOAOING RA'fES FOR DETERNIINING 80TTOM ABSORP7WN AREa <br /> � AND A850RPT10�1 RATI05 USWG PERCOLA710N TF3T5 <br /> T�uVnent Lovrt C ;TrcdaienttewtiA,A•2,8, <br /> C. Depth to Limfting Condition: 2.0 fi <br /> oercolatra�p�tc �n� Mound � ��p Mound <br /> D. Percent Land Slo �`�'�'`d`� ""•�"� <br /> pe: 10.0 �� t►.v,� � �: e�w '�P"°�' <br /> . ��n�? � , Sddht�) �O <br /> E. Design N,edia Loading Rate; 1.2 GPD/ft` .�, - � • � <br /> F. Mound Absorption Ratio: 1.OD - ;•-� ��� � ( 1.6 � <br /> _.:,_,.:::..s,�;: 6 2 � <br /> Tabie l •���„R>;•,y.,�,::; � o. � �.s � <br /> MOUNp COI�TOUR LOA�INC,KATES: ;�.,::' i o.:e 15 f � i.b <br /> ���a�� �`�'�:a O.b 2 0.18 2 <br /> 1+-0awr�d ' Toaturo•doriysd <br /> �vrc Rato � muu�abscrptior:sai" �oading .. �c�s � as 2.0 o.�e 2 <br /> • �i�: :�'A 045 2.6 I O.fi 2.6 <br /> ,!�Gr,�p; �.o. s.3 3.o.2..s.:.E .;2 . . .. . I s o.s s.s <br /> . .. � . . � . . <br /> bt•:2G r.��: O�. 5.� _;2 <br /> . 'Systems with these vatues are not Type I systems. <br /> , 12�„��;� ,��. ^6, Contour Loading Rate (linear toading rate)is a <br /> recommended value. <br /> 2. DISPERSAL MEDIA SlZtNG <br /> A• Calcutate Oispersal Bed Area: Des+gn Ftow:Design Media Loading Rate= ft' <br /> 750 GPD : 1.2 GPD/ft' = 625 f�� <br /> tf a larger dispersat media area is desired,enier size:�ft` <br /> B. Enter Dispersal Bed Width: 1U.p ft Con noi exceed 10 jeet <br /> G. Cakulate Contour Loading RaEe: 8ed Width X Design N,edia Loading Rate <br /> �0 ft' X �•2 GPD/ft` = 12.0 gat/fi Can not exceed Tabte 1 <br /> D. Catculate tv,inimum Dispersat Bed Lengih: Dispersat 8ed Area : Bed Width = 8ed Length <br /> 625 ft' : 10.0 ft = 62.5 ft <br /> 3. ABSORPTION AREA SIZING <br /> A. Catcutate Absorption Width: Bed Width X Mound Absorption Ratio =Absorption Width <br /> 10.0 ft X �.0 = tU.O ft <br /> B. For stopes>1°�, the Absorption width is measu�ed downhill from the upslope edge of the Bed. <br /> Ca(tutate Downstope Absorpiion Width: Absorption width - Bed Width <br /> 10.0 ft - 10.0 ft =C�ft <br /> 4. DISTRIBUTION MEDIA: ROCK <br /> A. Rock Media Oepth Below Distribu;ion Pipe <br /> 0.75 ft estimated volurr�e of rock on mound materials page <br />