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`���^r. <br /> Minnesota Pollution OSTP Design Summary Worksheet UNIVERSITY <br /> Ccntro!Agency OF MiNNESOTA :��•,,.: <br /> At-Grade Design Summary <br /> Absorption eed Width�ft Absorption Bed Length�ft System Height�ft <br /> Absorption Bed Area�ft2 Upslope Berm Width�ft Downs(ope Berm Width�ft <br /> Endslope Berm Width�ft System Length�ft System Width�ft <br /> Level Pressure Distribution Summary <br /> No.of Perforated Laterals� Perforation Spacing�ft Perforation Diameter 7/32 in <br /> Lateral Diameter 2•� in Supply Pipe Diameter 2.00 in Minimum Dose Volume 124 gal <br /> Flow Rate 36.0 GPM Totat Head 16 ft Maximum Dose Votume 187.5 gal <br /> 5, Additional Info for Type IV/Pretreatment Design <br /> A. Calcufate the organic loadinq using option 1 or 2 <br /> 1. Organic Loading =Pounds of BOD X Units <br /> �lbs/day X � _ �lbs BOD/day <br /> 2. Orgvnic Loadfing to Pretreatment Unit =Design Flow X Estimoted BOD in mg/L in the effluent X 8.35=1,000,000 <br /> �gpd X �mg/L X 8.35:1,000,000= �tbs BOD/day <br /> B. Type of Pretreatment Unit Being Installed: <br /> C. Calculate Soi(Treatment System Orgnnic Loading: lbs.BOD/day+Bottom Area =lbslday/ft2 <br /> �lbslday:- �ft2= �lbs/day/ftZ <br /> Comments/Special Design Considerations: <br /> I hereby certify that i have completed this work in accordance with all appliwble ordinances,rules and laws. <br /> (Designer) (Signature) (liceme#) (Date) <br />