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UNIVPJUITIf or Women <br /> Design Flow and Soil Worksheet <br /> Minnesota Pollution <br /> Control Agency .4% <br /> 3. SOIL LOADING RATES:Use either A.or 8.below <br /> A. 7080 Table IX B. 7080 Table IXa <br /> DETAILED SOIL DESCRIPTIONS(SOIL PIT PERCOLATION TEST LOADING RATE <br /> REQUIRED) SIZING (GPD/ft2) <br /> Faster than 0.1* 0.00 <br /> Texture 0.1 to 5* 1.20 <br /> 0.1 to 5(soil texture <br /> 0.60 <br /> Texture groups 3& 5) <br /> Group 6 to 15 0.78 <br /> 16 to 30 0.60 <br /> Structure 31 to 45 0.50 <br /> 46 to 60 0.45 <br /> 61-120 0.24 <br /> Grade <br /> Slower than 120 0.00 <br /> *Rapidly permeable soils:see 7080.2260 <br /> Consistence <br /> Slowest measured <br /> 6.0 <br /> percolation rate: <br /> Select Soil <br /> Loading <br /> Select Soil Loading Rate: 0.60 <br /> C. Design Loading Ratel 0.60 GPD/ft2 <br /> 4. ORGANIC LOADING(if pretreatment is being used) <br /> Organic Loading =Design Flow X Estimated CBOD in mg/L in t 1,000,000 = Lbs CBOD/day <br /> gpd X mg/L X 8.35 <br /> Table III(7083.4030) <br /> Treatment CBOD(mg/L) <br /> Level A 15 <br /> Levet B 25 <br /> Level C 125 <br /> I hereby certify that I have completed this work in accordance with all applicable ordinances,rules and laws. <br /> Joseph J Olson 6/7/09 <br /> 810 <br /> (Designer) (Signature) (License#) (Date) <br />