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!, � �: DIVIDUAL SEWAGE TREATMENT SYSTEM WORKSHEE'T
<br /> ::�� .
<br /> � ��v�w� -'. .�� / Fl.-�� ���>
<br /> � J FLOW � Estimstal Sewlge Flows in adlon�per day
<br /> :i� A. Estimated �� G L-� �I� / .S�' y� � (gp�)
<br /> �� mcasured x 1.5= �E,�{ ,,,��,�r
<br /> °' SCI'TIC TANK VOLUME o� j [I 111
<br /> � B. Dedrooms Ty� ry� ry� �y�
<br /> gallons
<br /> 2 300 225 180
<br /> � SOILS(Silc evaluation data) 3 450 300 218 ��
<br /> 4 600 J73 236 ��uu
<br /> C. Dcpth to restricting laycr= ' _�"� (�.t `'3J 750 43b 294 M
<br /> � D. Maxlmum depth of system C-3 ft=�_(��t 6 900 525 3�2 ��.
<br /> 7 IU30 600 370 °`
<br /> ; E. Percoladon rate�_MPI 8 1200 67s �08 ��,;;,,,.
<br /> F. SSF/-lo,�sq ft/gpd
<br /> I
<br /> TRINCH BOTTOM AREA Septk hnk Gp�cil(es,In�atloni
<br /> H. For trenches with 6 inches of rock below the pipe: Number o( Minimum Liquid Liquid c�p�cily wilh
<br /> A x F= i�� x��-�q (t of bottom area n��� c.p.eiey a.rbage di�.l
<br /> I. For trenches with 12 inches of rock below the pipe: z o�i�s, �so ���
<br /> A x F x 0.8= x x 0.8= sq ft of bottom area 3°`� 10� �s�
<br /> 4 or 6 I S00 2230
<br /> J. For trenches with 18 inches of rock below the pipe: �,R or 9 2000 3000
<br /> AxFx0.66= x x0.66= sqftofbottomarea o""9 ......
<br /> K. For trenches with 24 inches of rock below tl�e pipe:
<br /> AxFx0.6= x x0.6= sqftoftx�ttomarca
<br /> BED BOTTOM AREA
<br /> L. For seepage beds with 6 or 12 inches of rock below the pipe;
<br /> I.SxAxF= 1.5x x = sqftofbottomarea
<br /> ROCK VOLUME IN CU FT
<br /> M. Rock depth below distribution pipe plus 0.5 foot times bottom area:
<br /> � M=Rock depth+6 lnches x Area (H,1,J,L,K)
<br /> �_+�.5 jt)x = CU (t Sotl Characlerlalicy�nd Requlred Areas
<br /> ROCK VOLUME IN CU YDS for SeN��e 71�eafinen!
<br /> � N. Volume in cu ft divided by 27
<br /> Percolaticui R�le In SQuue Oallw��
<br /> M+27=CU yC�3 +27- �ll ydS Minute� r Inch So(I'Ibxture fen per per day pn
<br /> . IZOCK WGIGHT cMRij t•u�po. .y�,R r�a
<br /> da
<br /> O. Cubic yards times 1.4 =tons
<br /> Pu�er than D.1• Couie Sand --... ....
<br /> N x 1.4 = tons x].4� tons o.i�o s s.�a o.e� i.io
<br /> 0.1 Io S Fine wd•• 1.67 O.GU
<br /> 6 to IS Siuxly L.orm 1.2� 0.79
<br /> DISTItIi3UTION 16��� � t.6� o.co
<br /> 31 io IS Sih L,o�m 3.pp 0.30
<br /> (Check one based on slope) �h�o�o a,r tA.,,, 2.20. o.is
<br /> Bed (less than 6�o slope) s�°"'°„h��••• �,r -_ _.-
<br /> Trenches � � - �� .
<br /> Drop boxes(any slope) .
<br /> i �Distribulion box(Icvcl to slightly sloping)
<br /> TRIiNCH LENGT1i r.r.r•r•r•r•r.r"""r"r'.'^f,r, -J-
<br /> P. Select trench width= _- "� ' �•`•`•'.� ' `.'.�.�.�.'.� :
<br /> � (t � %O �/��';��f'�5 r•r r �•r.r.r•r•r r•r•r•r 2 inch Covcr
<br /> `•�•1,�• �
<br /> f•J•I.l�l�f�r:�1� :�ti't�ti
<br /> Divide bottom area by trench widlf�: (E I,I, ,or K + •'"'�'''`''" '�r�r`� r��
<br /> a' J ) r= ,f�:•f•r•f �.�:.�,:
<br /> lineal feet ,.J'f�f {r�l1ltill
<br /> :f:f:��� ti•ti•1�ti
<br /> � ��J.�+.,�_�lineal feet �•�.�.�. `�fti��r� 4 inch Pipc
<br /> r•r•r r
<br /> �'ti'ti'y' ti.ti•tirl
<br /> I.AWN A1ZEA ;f�r'`'r' f'�''•f•
<br /> , 1•l��1�1� ti�1'�'1'ti
<br /> f•r�rti��� r•r•r.f.r.f.
<br /> R. Select trench s acin = ,; :f`,�•�''• �•�•�•�•ti��•ti
<br /> p g,center to center (eCt r'r'f'rti: :;i �'r•�•r•
<br /> �'ti'�'ti•ti•ti• 1t1•�•ti•1
<br /> 1'f'!'�l.!•l•!�l•r r.! r.Jr
<br /> S. Multlply tmnch s acin b lineal feet R x �f`r:•`•�•'•''�•'�t �•�•�.�
<br /> P g Y Q=sq ft of lawn area ;.,.ti:{tif;:'f•�.r.�•r.f.r.
<br /> ,.�.�. �•�•�•�•ti•�•ti•ti
<br /> ti,tir:;�r.r•r.r r.r•�.f 624 inch
<br /> X = Sq (t �rtii���{�;•��l1�1f�I:l���iti ROC�DCIOW UIC Pl
<br /> � f,f. tif�fti{�'1�1•l�•ti{1
<br /> r•f1f�• r r•f•f•r,r• ..L
<br /> ti.�.ti.ti, r�`..ti.ti.�.ti.ti.1�ti
<br /> I.AYOUT(Use other side) r'''r"' •'•`���••�•r• .
<br /> �•�•�•�•ti• ti ti. r }}
<br /> `f'r'�'r': r}
<br /> 1.Sclect an appropriate scale;one square� feet.
<br /> 2.Show pertinent property boundaries,right-of-way,eascrnents.
<br /> 3.Show location of housc,garage,driveway,and all othcr
<br /> Improvements, existing or proposed
<br /> 4.Show location and layout of scwagc lrcatment systcm. � ''
<br /> 5.Show location of watcr supply wcil,
<br /> ' 6. Dimension all set backs and scparation distanccs.
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