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INI)I \ It)UAL ,1_,INA1.1 IKLAli t v1 .)1JILi/!11�NA)Kt..>111.t i <br /> FLOW Len/ L Estimated Sewage Flaw in Gallons pet Day(F'_plJ) <br /> A. Estimated 7c;. gpd Nm _ttltet - <br /> measured x = gpd 1/3/M e_ -I- of Type I Type II Type III Type IV <br /> SEPTIC TANK VOLUME Bedrooms300 225 1x0 - __, <br /> - <br /> 605 <br /> B. Pe /3ex, gallons 4,7k),42 3 450 300 201 <br /> 4 600 375 256 the <br /> 5 750 450 294 ihi <br /> uaSOILS (Site evaluation data) 6 900 52533 7 1050 6(x) 370 r, <br /> C. Depth to restricting layer= yD _ feet 8 1200 678 408 <br /> D. Maximum depth of system C-3 ft = /• D feet - <br /> E. Texture 5841 Jam•'• Percolation rate $-29 MPI Number Minimum Minimum <br /> F. SSF )a67 sq ft/gpd of <br /> Septic Tank Capacity with <br /> Liquid Garbage <br /> Bedrooms Capacity Disposal <br /> TRENCH BOTTOM AREA (gallons) (gallons) <br /> H. For trenches with 6 inches of rock below the pipe: 2 or less 750 1.125 <br /> A x F= x = sq ft of bottom area 3 or 4 1,000 1,500 <br /> I. For trenches with 12 inches of rock below the pipe: 5 or 1,500 2,250 <br /> 8 <br /> A x F x 0.8= x x 0.8= s ft of bottom area 2,000 3.000q over <br /> 9 See fig.C-6 (x 1.5) <br /> J. For trenches with 18 inches of rock below the pipe: _ <br /> A x F x 0.66= x x 0.66= sq ft of bottom area Sod Charadenshcs St Required Area,tor Sewage Imatment <br /> K. For trenches with 24 inches of rock below the pipe: Percolation Rate <br /> �"•"' <br /> Minutes per inch Soil Texture I ;„7 ,4"°.2,, <br /> A x F x 0.6= x x 0.6= sq ft of bottom area (mpi) <br /> BED BOTTOM AREA Faster than 0.1' Coarse Sand _--_- <br /> 0.1 to 5 Sand 0.83 1.70 <br /> L. For Gravity beds with 6 or 12 inches of rock below the pipe; 0.1 toy Fine Sand*" 1.67 0.60 <br /> 6 to 15 Sandy Loam 1.27 0.79 <br /> 1.5 x A x F= 1.5 x x = sq ft of bottom area 16 to 30 Loam 1.67 1 0.60 <br /> For Pressure beds with 6 or 12 inches of rock below thepipe; 31 to 45 Silt Loam 2.00 0.50 <br /> A x F= x = sq ft of bottom area Slower than 60 (Cla yam 2.20 0.2s <br /> y (0.24) <br /> ROCK VOLUME IN CU FT •Sod too coarse for sewage treatment <br /> Use systems for rapidly permiable soils. <br /> M. Rock depth below distribution pipe plus 0.5 foot times bottom area: ••Soilltrving ,:.ormore offine oryerytine sand <br /> •'•Soil with too high a percentage of clay for <br /> M=Rock depth+6 inches x Area(H,I,J,L,K) installation of an ingnound standard system. <br /> ( +0.5ft)x = cu ft <br /> ROCK VOLUME IN CU YDS <br /> N. Volume in cu ft divided by 27 <br /> M_27=cu yds _27= cu yds 6 inches= 0% Reduction* <br /> ROCK WEIGHT 12 inches=20% Reduction <br /> O. Cubic yards times 1.4= tons <br /> N x 1.4=tons x 1.4= tons 18 inches=34°x°Reduction <br /> 24 inches=40% Reduction <br /> DISTRIBUTION *sizing for graveness trench <br /> (Check one based on slope) Bed(<6%slope) <br /> Trenches 1.----Drop boxes(any slope) Distribution box(<3%) <br /> SYSTEM LENGTH <br /> P. Select width= ft ti•L•ti•ti•ti•ti•ti•ti•ti.ti•ti•ti•ti•ti•ti <br /> r•r•r•r•r•r•r•r•r•iii;?r•r•r• T <br /> Q. Divide bottom area by width: (H,I,J,or K)_P=lineal feet f f~f�f=r f~f�f:f~f~f�f�f~f�f: 2 iachCover <br /> - = lineal feet ;ti{ti;ti{ti;�ftir•r•r•r•r•r•r•r•r• <br /> 1.1.,.1.1.1.1 <br /> r•r•r•r•r•r .�•r•r•r•r• <br /> 1.1.1.1• 1.1.1.1.1 <br /> Gravelless Pipe <br /> SSSS .' r.r.r.r• <br /> 1.1.1.1 <br /> rtir.r~r~ �r•r•r•r• <br /> ( 10" :A x F T 3)=Lineal Feet(8" :A x F_2)= Lineal Feet r:f:f:}:' V.T. )'1. 4 m,c hPipe <br /> r•r•r• <br /> 1.1.1.1. {.1.1.1.1 <br /> r iiel •r ii'R r•r• <br /> Chamber(A x F_width of chamber) �•ti•�•ti-� �•�•�•�•� <br /> f•r•r•r•r• r•r•r•r•r• <br /> 7 x� 3 r--ii/a lineal feet •%•%•%•%•%•%•%•%•%-%•%•%•%•%•%•e•e. ;.ti•ti.ti•ti•ti <br /> f•r•r•rr r•r•r•r•r•r•r• <br /> • <br /> LAWN AREA ::::::::::;C::::::::::111141::::::=r " <br /> .1.1.1.1.1.1. .1.1.1.1.1.1.1 <br /> + rtiftiftiftiftir:::SP;tiftiftiftir:r:f� <br /> R. Select trench spacing, center to center = 5 feet f.r.r.r.r.r.r.r.r•r•r.r,r.r.r. 6-:34 iunL <br /> 1.1'1'1'1.1'1'1'1'1'1'1'1'1 Rock Be k•w the Pi) <br /> :'r-r•r'r'r'r'r'r'r'r'r'r'r'r' <br /> S. Multiply trench spacing by lineal feet R x Q= sq ft of lawn area ''�'�•�'''�'''�'�'�"'' ' �"• <br /> r•r•r.r•r•r•r•r•:•r•r•r•r•r•r• <br /> -- i1r1r1r1r1r1r1 •r1•rr11rr1r•,wQQ x . __2oPG <br /> sq ft .1.1.1.1.1.1.1.1.1.1.1.1.1.1 <br /> --- r•r•r•r•r•r•r•r•r•r•r•r•r•:-r• <br /> .1.1.1.1.1,1,1,1.••.1..:.1.•,.1.•, <br /> LAYOUT(Use other side) r•r_r•r•r•r•r•r•r'r'r•r•r•r•r• <br /> 1 Select an appropriate scale;one square= feet. <br /> 2. Show pertinent property boundaries, right-of-way,easements. <br /> 3. Show location of house,garage,driveway,and all other <br /> improvements, existing or proposed <br /> 4. Show location and layout of sewage treatment system. <br /> 5. Show location of water supply well. <br /> 6. Dimension all set backs and separation distances. <br />