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OSTP Design Summary Worksheet UNIVERSITY Minnesota Pollution Control Agency OF MINNESOTA Mound Design Summary Absorption Bed Area 500.0 ft2 Bed Length 50.0 ft Bed Width 10.0 ft Absorption Width 26.0 ft Clean Sand Lift 1,5 ft Berm Width (0-1%) ft Upslope Berm Width 10.0 ft Downslope Berm Width 22.0 ft Endslope Berm Width 13.0 ft Total System Length 76.0 ft Total System Width 42.0 ft Contour Loading Rate 12.0 gal/ft At-Grade Design Summary Absorption Bed Width ft Absorption Bed Length ft System Height ft Contour Loading Rate gal/ft Upslope Berm Width ft Downslope Berm Width ft Endslope Berm Width ft System Length ft System Width ft Level ft Equal Pressure Distribution Summary No. of Perforated Laterals 3 Perforation Spacing 3 ft Perforation Diameter 1/4 in Lateral Diameter 2.00 in Min. Delivered Volume 0 gat Maximum Delivered Volume 150 gal 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 gal Lateral 6 5. Additional Info for Type IV/Pretreatment Design A. Calculate the organic loading 1. Organic Loading to Pretreatment Unit =Design Flow X Estimated BOD in mg/L in the effluent X 8.35+1,000,000 gpd X I Img/L X 8.35+1,000,000= lbs BOD/day 2. Type of Pretreatment Unit Being Installed: 3. Calculate Soil Treatment System Organic Loading: BOD concentration after pretreatment+Bottom Area =lbs/day/ft2 mg/L X 8.35+ 1,000,000 : I Ift2= lbs/day/ft2 Comments/Special Design Considerations: I hereby certify that I have completed this work in accordance with all applicable ordinances, rules and laws. Joseph J Olson 810 09/04/15 (Designer) ar411111- (Signature) (License#) (Date)