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<br /> INDIVIDUAL SEWAGE TREATMENT SYSTEM WORKSHEET
<br /> FLOW Estimated Sewage Flows in Gallons per day
<br /> A. Estimated I `4O gpd (3.. yp
<br /> measured --- x 1.5= - gpd N oft" Ill
<br /> --- I Type Type III Tlve
<br /> r
<br /> WICTAANK
<br /> VOLUME 2 ' •
<br /> B. /�r_�j O ,�tl gallons 3 1 300 zu iso
<br /> 1450 300 218 �'
<br /> 4 600 375 256 y,j�
<br /> SOILS(Site evaluation data) 5 1750 450 294
<br /> te
<br /> C. Depth to restricting layer= -`)•-rt' S'-o' feet 7 j o 0 1 6600 370 Type I.
<br /> D. Maximum depth of system C-3 ft= Ix"'Co 30" feet 1 8 1 1200 1 675 408 1 m
<br /> E. Texture /-"q`AN'^1 Percolation rate 3l•1 MPI 'columns
<br /> F. SSF ?,•�.o sqft/gpd
<br /> G. Slope _____°/0 Sep*Tank Gp,ades lhn galbts.
<br /> Liquid capwoy
<br /> N,mhanf Minimumliyuid tigwdopaarywun with dhs(s t&
<br /> TRENCH BOTTOM AREA f-Vi.ar'11,-117 ..5
<br /> -. 8T.5. . Cao rveatcdisposal ursunr,de
<br /> H. For trenches with inches of rock below the pipe: 2 iK lers
<br /> 3,• 7r0 II25
<br /> i WOO !sin I5W21xx1
<br /> A x F= l.Ko x a•"). =-15°/Cy sq ft of bottom areaT`"„ _ 1 3000
<br /> I. For trenches with 12 inches of rock below the pipe:
<br /> A x F x 0.8=_x_x 0.8=_sq ft of bottom area Soil Characteristics and Required Areas
<br /> J. For trenches with 18 inches of rock below the pipe: for Sewage Treatment
<br /> A x F x 0.66=-x x 0.66=_sq ft of bottom area Percolation Rate in Square
<br /> K. For trenches with 24 inches of rock below the pipe: Minutes per loch Soil Texture feet per gallon
<br /> A x F x 0.6= x_x 0.6=__-sq ft of bottom area NM per day
<br /> BED BOTTOM AREA Faster than 0.1• Coarse Sand --
<br /> 0.1 to S Sand 0.83
<br /> L. For seepage beds with 6 or 12 inches of rock below the pipe; 0.1 to 5 Fine Sand•• 1.67
<br /> sq1.5xAxF=1.5x_x_=_ ft of bottom area 61°15 Sandy Loam 1.27
<br /> '16 to 30 Lour 11.67
<br /> 31 to 45 Silt Loam 2,00
<br /> ROCK VOLUME IN CU FT ±16-11°60-_ Clay Loam .a7_11_017)Slower than 60'•• Clay ----
<br /> M. Rock depth below distribution pipe plus 0.5 foot times bottom area: • soil too coarse for sewage veument
<br /> M=Rock depth+6 inches x Area(H,I,J,L,K) use systems for rapidly permeable soils.
<br /> ( +0.5 ft)x = cu ft ••Soil having So%or more of fine sand
<br /> plus very fine sand.
<br /> ROCK VOLUME IN CU YDS •••Soil wills too high a percentage of clay for
<br /> N. Volume in cu ft divided by 27
<br /> installation of an inground standard system.
<br /> M+27=cu yds -27= cu yds
<br /> ROCK WEIGHT 6 finches 0%iReduction*
<br /> O. Cubic yards times 1.4=tons 12 inches=20%Reduction
<br /> N x 1.4=tons x 1.4= tons 18.inches=34°fo R•educfion
<br /> 24 inches=:40%-Reduction
<br /> SYSTEM LENGTH *sizing for'graveness:tench
<br /> P. Select trench width= :i•o ft
<br /> Q. Divide bottom area by trench width: (H,I,J,or K)+P=
<br /> lineal feet J,J.,'- t'-,t "�� Geotextile Fabric
<br /> '/I..+3lt� a N�.:- •'t;aati 6Keol-'''0'ca6y�by c
<br /> =13 lineal feet r, dkw;o+baa. $2"Rock Cover
<br /> asoabcV„1e a seri rYc
<br /> Q1. Gravelless Design r+-•�;?0 Sr4e z+
<br /> 2%-t:67."!.-
<br /> �.bw,8 .w�a(:.p
<br /> A x F+(3 for 10"pipe,2 for 8"pipe,width of the Chamber) 2e o• ljit ea=:t.: I i:..tq 4 gD,5.0 4 t7rr}s€
<br /> X_____-1- = feet `p br.*¢ p.a4p;•
<br /> LAWN AREA °oaWAb,aet•t•; m• +o,
<br /> R. Select trench spacing,center to center= S feet ��k•:;.,.:,�..;�w•Pa90.;w�o04
<br /> S. Multiply trench spacingbylineal feet R x Q=sqft of lawn area P .,,,. ,
<br /> P Y pot acoc�.:• +�
<br /> Z x z =(oiwi 5 ft �:..br:r. a;,r,�..► d!9ro'rii
<br /> ��!;r' •j,,rtz.ni.st•.w( iv, 3/4-2 1/2"
<br /> Q? f}Q�*.y�0i.�...b.a
<br /> LAYOUT(Use other side) 6'ip * *a.x�,..o, o c
<br /> +: 4.�.Q?a. ea4 a a. )
<br /> 1.Select an appropriate scale;one square= feet. G.: i oj4`,�q,1°3''-w.4 URS \--,--5-.---
<br /> G.
<br /> 4:�
<br /> 2.Show pertinent roe boundaries,right-of-way,easements, p.:..-•. 4riuQ;a°a a To... y
<br /> property rtYtoavc •`a a +ood'c
<br /> 3.Show location of house,garage,driveway,and all other � 0` " •
<br /> improvements, existing or proposed 18.36"Width
<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.
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