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<br />FLOW
<br />JlH',ISlll'('d -X gpd
<br />SEPTIC TANK VO LUM I
<br />P<_ (::,,/34::) ______ gallons
<br />SOILS (Site evalual1nn data)
<br />UqJth lo reslncting layer= ___ ':I_,/ ____ _
<br />Loi 3
<br />Maximum depth of system C -:1 (I = _i-_L
<br />Texture SZ¥Jy/ozv-,. Percolation ral<' L~-:-2.'} __ _
<br />feel
<br />MP!
<br />SSF /4~_2 sq ft/ gpd
<br />TRENCH BOTTOM AREA
<br />For trenches with 6 inches of rock below the pipe:
<br />A x F == __ x __ == __ sg ft of bolt om ar<'a
<br />For trenches \•vith 12 inches of rock below the pipP:
<br />A x F x 0.8 == __ x __ x 0.8 = __ sq ft of bottom are;i
<br />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
<br />For trenches with 24 inches of rock below the pipe:
<br />A x F x 0.6 = __ x __ x 0.6 = _____ sq ft of bot tom area
<br />BED BOTTOM AREA
<br />For Gravity beds with 6 or 12 inches of rock below the pipe;
<br />1.5 x A x F = 1.5 x __ x __ = __ sq ft of bottom area
<br />For Pressure beds with 6 or 12 inches of rock below the pipe;
<br />A x F = __ x __ = ___ sg ft of bottom area
<br />ROCK VOLUME IN CU Fr
<br />Rock depth below distribution pipe plus 0.5 foot times bottom area
<br />M =Rock depth+ 6 inches x Area (H,I,J,L,K)
<br />( __ +0.Sft) x __ = __ cu ft
<br />ROCK VOLUME IN CU YDS
<br />Volume in cu ft divided by 27
<br />M + 27 = cu yds ~ + 27 = __ cu yds
<br />ROCK WEIGHT
<br />Cubic yards times 1.4 = tons
<br />N x 1.4 = tons X 1.4 =
<br />DISTRIBUTION
<br />tons
<br />(Check one based on slope) __ Bed ( < 6% slope)
<br />Trenches VDrop boxes (any slope) __ Distribution box ( < 3%)
<br />SYSTEM LENGTH
<br />Select width = ft
<br />Divide bottom area by width: (H, I, J, or K) + P = lineal feet
<br />lineal feet
<br />Gravelless Pipe
<br />( 10" :A x F + 3)= Lineal Feet ( 8" :A x F + 2)= Lineal Feet
<br />Chamber (Ax F + width of chamber)
<br />7~x L.62 + ---2__ =W._ lineal feet
<br />LAWN AREA
<br />Selt'cl trench spacing, center to center =-~--l<.'l'I
<br />Multiply trench spacing by lineal feet I< x (_) ,~ ,q II "I l.11\'!1 ;m•,1
<br />o/'/&___ X _s__ Zoit?sq i1
<br />LAYOUT (Us" other -:1d,,J
<br />1. Sell'Cl an appropri;ite scale; one squ;irc
<br />2. Show pertinent property boundaries, right ,1J w,w, ,·.tsL'llWnh
<br />1. Show location of house, garage, driv<'w;w, ;ind ,111 ,11lwr
<br />improvements, existing or proposed
<br />4. Show location and layout of sewagt> lre,1tnwnt ,-;v,-,t,·111
<br />5. Shm-v location of \•vater supply well.
<br />6. Dimension all set backs and separation dislanc<'s.
<br />L\lm1a1cd "icw.1,•c H,m
<br />Ill ( ;.11!011, pc, I ),l~~s-~gpd l
<br />h111mhc1
<br />of fqw I hp.-II hp,· Ill Tvp,· IV
<br />Bt>dttHllll~
<br />HXl -:i-:i~ IHO -------
<br />(>(Jt,i 4~0 1(Xl 21H "' ,l oOO 17, 2')<, th,
<br />7~0 •150 294 V;i!Ul'.,
<br />9<XI ):i\ 112 "' " 1hr
<br />I()\() MXl .\70 u1hn
<br />X I :>CX) ,,.,, 40X u1lu11m,
<br />Numhc1 Minunum Minuuum
<br />Scpllr Tan~ Capacuy WHh of Liquid Ga1haic
<br />Bedrooms Capant) Disposal
<br />(~allons) (fallonsl
<br />2 or less 750 1.125
<br />3 or 4 I ,()(XJ 1.500
<br />5 or 6 I .5(Xl 2.250
<br />7 or 8 2,(XXJ :i.ooo
<br />over 9 See fig. C-6 (X 1.5)
<br />:-...111 Chi\r,\( h•fl:,l1c, & Ht'\JUIH'\,1 An.•,I:, t.11 '.->t.·\\·,t~e ln·.ltml·nt
<br />1'1•rl'ol<1t1tlll R.lh' I , . ~.';"';:i:::,• ~!~:':
<br />hi,nul~•:-1.,.., ,rn h I S01I Texture f .... ' d .. , ,..,., ~"~"
<br />(mp1) '""'
<br />Faster lhan 0.1 •
<br />0.1 to 5
<br />0.1 toS
<br />6 lo 15
<br />16 to30
<br />31 to45
<br />46 lo 60
<br />S]o\ver than 60°"
<br />,....:oarse Sand
<br />Sand
<br />Fine Sand ..
<br />~andvLoam
<br />Loam
<br />Sill Loam
<br />Clav Loam
<br />Clay
<br />0.83
<br />1.67
<br />1.27
<br />1.67
<br />2.00
<br />2.20
<br />1.20
<br />0.60
<br />0.79
<br />0.60
<br />0.50
<br />0.45
<br />(0.24)
<br />1-------_L ____ L,_ _ _J_ ____ _
<br />• S..1il t{)il t.uar~t> for ~'-'"'<1~c matmt'nt
<br />Use !>yslt!ms for rapidly perminble-soib
<br />·• Soil ha\'int 50'}., tlr O\llrt' t.lf hnt' or \'cry fmc :-.lnd
<br />·•• Soil with too high a perCt'ntage of day for
<br />installi\tion o( an ingmund standard system.
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