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I <br /> Job 1rE= <br /> Pno�eaw ,: <br /> University of Minnesota Mound Design Worksheet <br /> Greater than I% <br /> A. FLOW <br /> Estimated <br /> or measured 450 A-i) <br /> xiS(sadetyfactor)= r 0 gpd <br /> e, SEPM TANK L IQUU)VOUNIES <br /> Septic tank caga* 2000 ons(see dgUre iii) <br /> Numbarof tats 0 <br /> EfNuent Filter(yes(no) es <br /> C-1 Septic Tank In Galbns <br /> Numbar of Knimum Capaoily with ►lS'wah <br /> 2 750 h+ Gard Dlsp. Disp.and Lift <br /> 1125 1500 <br /> 3 aro 1000 1500 ZD00 <br /> 5 orb 1500: 2250 3800 <br /> 7,8 or 9 2000 3000 4000 <br /> C. SOILS(Site eveluagm date) <br /> I- 080 to res*ft layers1.3 fee, <br /> 2. Depth of per oolation tests= t. orches <br /> 3. TeaWre kx" <br /> 4. Sal Ina ft rate(sea Rowe DM MPI <br /> 0.60 gpd/ft2 <br /> Percolation rad 71 <br /> 5. %Land Slope 11 <br /> D. ROCK LAYER DMIENS IM <br /> 1. Muttipty avemW design flow(A)by 0.83 to obtain MQW(ed area of rock layer:RemA x 0.83= <br /> 450 gpdx0.83fe/gpd- 380 if <br /> 2. Oetemdne rod*Wvfth=t.8 tl`/gpd x Unear Loading Rats(LLR}(see UR 00 <br /> gpd x 10.0 It <br /> LLR Chart <br /> Perk Rate 11R <br /> <120 MPI 4=12 <br /> 20 MPI c.,g <br /> 3. Length of nock layar a area divided by widtir <br /> 3800 ftp 1 10.0 feet= 38.0 ft <br /> E ROCK VOLtf61E <br /> I. MOW*mck area by rock depth to get aublcfest of rock <br /> 380.0 X 1.0 ft= 380.0 ft <br /> 2. Divide ft'by 27 felyd'o get cubic yams <br /> 380.0 t}' 1 27 = 14.1 yds <br /> 3. Multiply cubic yards by 1.4 logo weight of rock in torus~ <br /> 14.1 yd' X 1.4 to VW 19.7 tons <br /> Page 1 of.5 <br /> C-d OL*S ZLfr ass 6PODA astFgnr Q68t80 80 la 6QW <br />