|
INDIVIDUALSLWAvL IREAIMLI\II SISILNI V OiU l4LLl
<br /> FLOW Lo / I auniated Sewage Floes in Gallons Per I)a_Igpd)
<br /> A. Estllnated 750 gpd ' Nul is
<br /> measured ___ --- x _ = _ _ gpd R1/,, l e^ of Type I Type 11 Type III Type 1\'
<br /> IRO
<br /> SEPTIC TANK VOLUME t �j� Iy , i3t h,ton.
<br /> B Q- 13aO _ gallons // 1 450 1(x) 218
<br /> 4 6(X) 375 256 this
<br /> S 75(1 450 294
<br /> SOILS (Site evaluation data) `' x5 525 z ;"
<br /> 1050 600 377 o ..,„ ,-,,.
<br /> C . l)e1'th to restricting layer =__-___5•d feet h 120) 675 408
<br /> D. Maximum de th of system C- 3 ft = 2-0 feet
<br /> F. Texture SPercolation raft' td'_I6_ MPI Minimum Minimum
<br /> Number
<br /> F. SS!' I.47 (apac,n w„h
<br /> sq ft/gpd of Septic Tank
<br /> Liquidcathart.
<br /> Bedrt/0MS CapactIN Disposal
<br /> TRENCH BOTTOM AREA (gallons) gauon,l
<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 1.0()0 1.5(0
<br /> 5 or 6 1.50) 2.250
<br /> 1. For trenches with 12 inches of rock below the pipe: 7 or S 2•(0) 3.00)
<br /> A x F x 0.8 = x x 0.8 = sq ft of bottom area over 9 See fig.C-6 I (x l.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 areaSoilCharacteristics&RequIredArras iotSm.age Ireaim„u
<br /> Prrc, n ��•,"` T"•"
<br /> K. For trenches with 24 inches of rock below the pipe: n,,n�dt„anon rRa,,,e,•, Soil Texture;1;2;';171,1-,•,.,.
<br /> A x F x 0.6= x x 0.6 = sq ft of bottom area (mist) '
<br /> BED BOTTOM AREA Faster than 0.1• parse Sand
<br /> 0.1 to 5 Sand !
<br /> O.53 ' ]20
<br /> 1 For Gravity beds with 6 or 12 inches of rock below the pipe; 0.1 to 5 Fine Sand-1 1.67 1 0.60
<br /> 6 to 15 .and\ Loami 1.2- (I,,1
<br /> I.5xAxF= 1.5x __ x _ = sq ft of bottom area 16to30 Loam 1 1-67 1 poo
<br /> For Pressure beds with 6 or 12 inches of rock below thepipe; 4 to 640 I Silt foam O I II4.
<br /> 46 to 60 IClavLoam ! 2-0 04
<br /> A x F = x = sci ft ot bottom area ``lower than 60"•j Clay I
<br /> Ii (i)241
<br /> ROCK VOLUME IN CU FT
<br /> 'S„ti too coarse km sewage treatment
<br /> Use syNtem,for rapldlc pemuahle sod
<br /> M Rock depth below distribution pipe plus 0.5 foot tunes bottom area: ••Soil having 50Y.t or more or fine nt,er,hne Nano
<br /> M =Rock depth+6 inches x Area (H,I,J,L,K) nod with mtext high a percentage ula rd s lot
<br /> on of an ingund sstandard''stem
<br /> ( +0.5 ft)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 /> 0 Cubic yards times 1.4=tons
<br /> N x 1.4=tons x 1.4 = tons 18 inches;34°10 Reduction
<br /> 24 inches 40% Reduction
<br /> DISTRIBUTION *sizing for graveness trench
<br /> (Check one based on slope) Bed (<6%slope)
<br /> Trenches ...-'-----Drop boxes(any slope) Distribution box (< 3%)
<br /> SYSTEM LENGTH
<br /> P. Select width = ft .ti,ti•;,ti,ti•ti,ti,ti,ti,ti,ti,ti,ti,.•• T
<br /> f•r.r•r•r•r•r•r•r•r•r•r•:•:•:•,
<br /> c). Divide bottom area by width: (H, I,J, or K) -P = lineal feet rtir�r:r:r`r�r`r':r`r:f:rtirtirtir~, n hoover
<br /> ti•ti•ti•ti•ti•ti•ti•1•ti•ti• ;V:: :%
<br /> = lineal feet •r•r.r•r•r•r•r•r•r•r•r•r•r•r•r•,
<br /> •r•r•r•r•r•r •�•r•l•:•r•,
<br /> Graveness Pipe • •�•�•~• �•�•~•�•~
<br /> :•r•r•r•r r•:•r•r•,
<br /> .1.1•~•1.• ti•::::::•ti
<br /> r•r•r•r• r•r•r•r•
<br /> ( 1.17~•~• S•ti•ti•ti• : 4 mcLPipe
<br /> 10" :A x F r 3)=Lineal Feet (8" :A x F-2)= Lineal Feet f•r•r•r• :•r.r.r•,
<br /> Chamber(A x F_width of chamber) •ti•ti•ti•ti• ;•ti•ti•ti••.
<br /> r•r•r•r•J �•:•r•r•r•,
<br /> t•ti•S•ti•L ti•ti.ti•ti•ti
<br /> cn 1 /,/ /� 'r•r•r•r•r• r•r•r•r•r•,
<br /> 7.,[/ x X67 - 3 = /1(/ lineal feet ~
<br /> -.7:411::::;11:::::;.......:41::::::::::A
<br /> . 1. .•ti•ti•ti•ti•ti•t•ti•ti•ti•ti•:F:tv
<br /> LAWN AREA r•r•r•r•r•r•r•r•r.r•r•r•r•r• •,
<br /> 1.1•ti•ti•ti•ti•ti•t•ti•ti•ti•ti•ti•ti•ti
<br /> •r•r•r•r•r•r•r•r•r•r•r•r•r•r•r•e
<br /> . ti.ti .:4•;:•ti•ti.ti.ti.ti•ti•ti.:•ti.ti
<br /> r•r•:•r•r•r•r•r•r•r•r•r•r•r•:•,
<br /> Z. Select trench spacing,center to center = feet }.r.r.r.r.r.r.r.r.r.r•r.r.r•r., e,aq in�oL
<br /> ti•ti•ti•ti•ti•,•ti•ti•ti•ti•ti•ti•ti•ti•ti
<br /> 'i•r•r•r•r•r•r•r•r•r•r•r•r•r•r•,Rock Be k w the Pi
<br /> S. Multiply trench spacing T bylineal feet F x Q = s ~'~•�'�'�•�'�•�'ti'�•''�'�'�•~
<br /> p �, q ft of lawn area 'r.r•r•r•r•r•r•r•r•r•:•r•r•r•:••
<br /> ,yti.ti•ti.ti•ti•ti.ti.ti.ti.ti.t.ti•t.L
<br /> y x 5_ _ sq ttf•r•r•r•r•r•r•r•r•r•r•r•:•:•r•,
<br /> ti•L•.::::P ti•ti• ;V::ti•ti•ti•ti•'.
<br /> •rti�tirtirtirtirtirtirtirtirtiftiftirtirtirti,
<br /> LAYOUT(Use other yid(') '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 /> n I)imension all set backs and separatitu3 distances
<br />
|