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OSTP Design Summary Worksheet UNIVERSITY ru �� Minnesota Pollution OF MINNESOTA Control Agency Mound Design Summary Absorption Area 625.0 ftZ Bed Length 63.0 ft Bed Width 10.0 ft Absorption Width 12,0 ft Clean Sand Lift 1.2 ft Berm Width (0-1%) ft Upstope Berm Width 11,0 ft Downslope Berm Width 20.0 ft Endslope Berm Width 11.0 ft Total System Length 85.0 ft Total System Width 41.0 ft Contour Loading Rate 12.0 gal/ft At-Grade Design Summary Absorption Bed Widthft Absorption Bed Length� ft System Height�ft Contour Loading Rategal/ft Upslope Berm Width� ft Downslope Berm Widthft Endslope Berm Width E �ft System Length System WidthE=ft Level it Equal Pressure Distribution Summary No.of Perforated Laterals Perforation Spacing�ft Perforation Diameter 7/32 in Lateral Diameter2.00 in Min.Delivered Volume gal Maximum Delivered Volume 188 gal i Non-Level and Unequal Pressure Distribution Summary ! Elevation Pipe Volume Pipe Length Perforation Size (ft) Pipe Size(in) (gal/ft) (ft) (in) Spacing(ft) Spacing(in) Lateral 1 Minimum Delivered Volume Lateral 2 gal Lateral 3 Lateral 4 Maximum Delivered Volume Lateral 5 � ]gat Lateral 6 5. Additional info for Type IV/Pretreatment Design A. Calculate the organic loading using option 1 or 2 1. Organic Loading =Pounds of BOD X Units lbs/day X _ lbs BOD/day 2. Or Loading to Pretreatment Unit =Design Flow X Estimated BOD in mg/L in the effluent X 8.35=1,000,000 gpd X mg/L X 8.35=1,000,000= E::::::::I lbs BOD/day B. Type of Pretreatment Unit Being Installed: C. Calculate Soil Treatment System Organic Loading: lbs.BOD/day+Bottom Area =lbs/day/ft2 lbs/day= E�fta= E�tbs/day/ftp Comments/Special Design Considerations: i i I I i I hereby certify that I have completed this work in accordance with all applicable ordinances,rules and taws. Joseph J Olson � 810 01/14/15 (Designer) (Signature) (License#) (Date) i i