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aSTP Mound Design <br /> LINIVERSI"I,Y <br /> Nlinnesota Poliution `� <br /> Wor s eCt > '� % S ape or� MINNEso•rA �`'�'° <br /> Control Agency �`��'`*,�" <br /> 1. SYSTEM SIZING: <br /> A. Design F(ow(F(ow 8 Soil - 1.A) : 750 GPD �°h�"� <br /> iJ,;"sl3hli`t�t�NTC�U�WMt�It�i� '�iSiTES: <br /> B. Soit Loading Rote(Flow& Soil-3.C): O.bO GPD/ft7 <� t-�:� <br /> rh��sur��d C� L.� �iur�ed <br /> ��arc Rara ��R ,,eaini ah.�;pt�v r�?ic� Lra���'� <br /> C. Depth to Limiting Candifion: 1 J ft t��-� <br /> D. Percent Land Slope: 14.0 �q -`=''"v' ' `� ' ' ?��' ~'� ` ° _ ` <br /> E. Desion Media Loading Rate: '1.2 GPD/ftz '�-����'�r� '`�F `'� -�- <br /> F. Mound Absorption Rofio(1.E:1.B): 2.00 - �z�.,�-,�,i' -5_c' _5' <br /> G. Desi�n Contour Loading Rate: 1 2.0 GPD/ft <br /> 'Systems with these vatues are not Type I systems. <br /> (From Table I same as Linear Loading Rate} ContoUr Loadin�Rate is a recornmended value. <br /> 2. DISPERSAL MEDIA SiZfNG <br /> A. Calcutate R�quired Dispersat Bed Area: Design f(ow (1.A} = Design Media taading Rote (t.E) = ft' <br /> if a laroer dispersal media 750 GP�: 1.20 GPD/ft� = 625.0 ft1 <br /> area is desired, enter size: 630.0 ftz <br /> B. Catcu[ate Dispersat Bed Width: Contour Looding Rote (t.G) :Design Media Loading Rate (1.E) = Bed Width <br /> 12.0 ft : 1.2 gpd/ft2 - 10.Q ft <br /> C. Calculate Dispersa( Bed Lensth: Dispersof Bed Areo (2.A} :Bed Width (2.B) = Bed Length <br /> 630.0 ft' : 10.0 ft - 63.0 ft <br /> D. Select Dispersaf Media: ❑RoCk <br /> ❑Other Approved Media �� ---_--� <br /> 3. ABSORPTION AREA SIZING <br /> Noie:Mound setbocks are measured from the�lbsnrptivn Area. <br /> A. Calculate Absvrption Width: Sed Width (2.6} X Mound Absorption Ratio (1.F) = Absorption Width <br /> 10.0 ft X 2.0 = 20.0 ft <br /> B. For slopes >1%, the Absorption Wrdth is measured downhitl from the upslope edge of the Bed. <br /> Calcutate Downslope Absorption Width: Absorption Width (3.A} -Bed Width (2.B) =ft <br /> 20.0 ft - 10.0 rtt = 10.0 ft <br /> Comments: <br /> S(npe, CLR Choice, Materiat issues <br />