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, S ��,�1 <br /> � <br /> . OSTP Mound Design Worksheet <br /> UN I V ERS ITY t`'° <br /> Minnesota Potlution >1% Stope OF MINNESOTA �` � <br /> Control Agency �.�zg��- <br /> 1• SYSTEM SIZING: Project ID: ���,pq,22 <br /> A. Design Flow(Flow&Soil- 1.A): 750 GPD ,' 1'/�BLE �Xa <br /> B. Soil loading Rate(F(ow&Soi(-3.C): 0.60 GPD/ft2 �LOADING RATES FOR DETERMINING BOTTOM ABSORPTION AREA <br /> AND ABSORPTION RATIOS USING PERCOIATION TESTS <br /> C. Depth to Limiting Condition: 1.3 fi Treatment Level C TreatmeM Level A,n•i,s, <br /> Abwrption Abzorption <br /> D. Percent Land S(ope: 15.� ;� Perm(atlo)Rate prea loading ��°�� Area loading �°�� <br /> �� Rate P Rate � <br /> E. Design Media Loading Rate: 1.2 GPD/ft2 ,! (gpd/ft') Ra°O ��'� Re°° <br /> F. Mound Absorption Ratio(Table IXa): 2.00 '<o i - � - � <br /> '0.t io 5 '1.2 1 'I.6 1 <br /> G.Design Contour Loading Rate: 121.0 GPD/ft ,o t ro 5�rine sand <br /> 0.6 2 1 1.6 <br /> Table� iand�w tine sand <br /> MOUNO CONTOUR LOADING RA7ES: s to ts o.78 �.5 1 1.6 <br /> tit�awrnd ' Taxtu�a-darivaA Contour �6to30 0.6 2 OJ8 2 <br /> P9rc Rate �R mound abw tion ratic Loading <br /> � Rate: 3t to 45 0.5 2.4 0.78 2 <br /> '��o�` OAS 2.6 0.6 2.6 <br /> �hOmpi t.Q �.3.2.0.2.a.2.6 c12 <br /> ;6�to i20 _ 5 0.3 5.3 <br /> 51-i26 mpi OR 5.0 -t2 >i2p - - - - <br /> _ �zo ma• �s.c :h' 'Systems with these values are not Type I systems. Contour Loading Rate(linear <br /> loading rate)is a recommended value. <br /> 2. DISPERSAL MEDIA SIZING <br /> A. Calculate Required Dispersal Bed Area:Design Flow (1.A):Design Media Loading Rate (1.E)=ftZ <br /> If a targer dispersal media area 750 GPD a 1.20 GPD/ftZ = 625 ftZ <br /> is desired,enter size: �ftZ <br /> B. Catculate Dispersa(Bed Width:Contour Loading Rate (1.G):Design Media Loading Rate (1.E)=Bed Width <br /> 121.0 ft : 1.2 gpd/ft2 = 10 ft <br /> C. Calculate Disperw!Bed Length: Dispersal Bed Area (2.A)=Bed Width (2.6)=Bed Length <br /> 625 ftZ : 10 ft = 63 ft <br /> D. Select Dispersvl Media: ROCk <br /> E. If using a registered product,enter the Component Lenqth: �in= 12 = �ft <br /> F. if using a registered product,enter the Component Width: �in: 12 = ��ft <br /> G.Number of Components per Row =Bed Length (2.C)divided by Component Length �4.J) (Round up) <br /> � ft : � ft= �components/row <br /> H. Number of Rows =Bed Width (2.6)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 9°f/ft results in 9 foot <br /> wide bed. <br /> � ft= � ft= � rows <br /> �, Tota(Number of Components =Number of Components per Row X Number of Rows <br /> � X � _ ��components <br />