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" I1VL�IVIDUAL SEWAGE TR�ATMF.NT SYSTEM WORKSHEET <br /> FLOW Eciimatod Scwegc Flowa in Gullcros pet day <br /> A. Estimatcd �() � gpd (BI�) <br /> � measured — x 1.5= •--- gpd um r <br /> SEPTIC TANK VOLUME of Typc 1 Typc li �c III T�v <br /> B. '; -- 1�,,�, •� gallons <br /> Acdraome <br /> • 2 300 225 1�U <br /> • �SOILS(Sitc evaluation d�ta) 3 450 300 218 0� <br /> C. Dc th to restrictin la er= r) '- � '� (��t 4 600 375 256 ���� <br /> P � Y s �so aso 29a �� <br /> D. Maximum depth of system C•3 ft = �. • � fcct 6 9cx� S25 132 ���� <br /> E. Pcrcolation rate I ;. .`� MPI 7 1050 600 370 <br /> F. Soil Sizing Factor '�. l�� sq ft/gpd (Scc tablc 3)%� ��> g 1200 675 4oB �ui�;�� <br /> Z'RENCH BO?TOM AREA Scptic T�nk Crp�rities,in Rdloe� <br /> H. For trenches with 6 inches of rock below the pipe: <br /> A X F s X = f t of bottom arra Numbcr of Minimum Liquid Liquid a�.c��y p�� <br /> � Dcdroom� GMei�y �arb�ge Ji�posat <br /> 1. For trenches with 12 inches of rock below the pipe: <br /> AxF,x0.8= �-�� xl•�..�%x0.8= �l ftofbottomarcaL��°� --� � 2a��:: �so �izs <br /> �� •3 or 4 1 aK) 1 Slxl <br /> ]. For trenches with 18 inches of rock bclow the pipe: �0►6 �stx� 2zsc� <br /> A x F x 0.66= x x 0.66= sq ft of bottom�rca ��e°'g Z�w �aK► <br /> ovcr.9 <br /> K. For trenches with 24 inches of rock below the pipe: <br /> AxFx0.6= x x0.6= sqftaflx�ttc�u�arca <br /> BED BOTTOM AREA <br /> L. For seepage heds with 6 or 12 inches of rock below the pipe; <br /> �.5 x A x F= �.J X x = sq ft of bottam area So8 Char�elerisikt�nd llequlred Ah�R <br /> for Sews�c 7�cHmenl <br /> ROCK VOLUME IN CU FT <br /> M. Rock depth below distribution pipe plus 0.5 foc�t timcs tx�ttom arca: M���a Klneh SoilToiwie f�a.�i�� �����f <br /> ra r���r r� <br /> M =Rock depth(ft)+6 inches x Area (H,1,J,L or K> �M'�� �•d;°°` "'"•�u" <br /> �� (� ft+�Q�ft)x d�.1 r�I 4 S cu ft ._. ..... <br /> — �aater�han 0.1• Cwne S�nJ <br /> ROCK VOLUME IN CU YDS o.i as s.nd o.e� I.Io <br /> o.�w s r�..�a•• i.�� u.�u <br /> N. Volume in cu ft divided by 27 6�+�s S�ndyLo�m �.r o.�v <br /> • M+27=cu dst�N�•�27= 42 cu ds 16to30 u"'" �.�a a.�n <br /> y —� y 31�045 Sihl.�wn 2.W O.SO <br /> � ROCK WEIGHT 4e�co c�.r�.m t.zo o.�s <br /> Slowa th�n 60�•• Q�r .•••. .—. <br /> O. Cubic yards Nmes 1.4= tons <br /> N x I.4=tons_4a. x J.4 =�tc�ns <br /> DISTRIBUTION <br /> 'c��,��•�t <br /> (Check one based on slo ) S- � '�' � `'�"� � '� T <br /> � .r.r.f•r•r•r•.►•t•t•.'•t•r•r <br /> Bed (less than 6°!o slopc) •L t 1 ti•ti•'ti•t•�•'.•'.•�•�•1• <br /> i-r r•r•r•r.�.r•f•f•r•i•� 2 inch Covcr <br /> •ti� ti.ti•ti.ti•ti ti•�•ti•ti•ti•ti• <br /> Trencht5 } i;r r•r•r•�•r.f•.•r•f•r <br /> .ti.ti., {.y. .ti.ti.ti.ti.ti. <br /> f�f�f�f� �� f�f���f l ��2 <br /> •��ti ti• ti••.••.•ti• <br /> Drop boxes(any slopc) . :.f.;. .f;;.r.r <br /> .i.�,.ti.�. '..y �• . <br /> •ti tif'Lr'. F. ttiltit�� �"111C'�1"•'1^' <br /> Distribution box(level to slightly sloping) f ,.,. r.,.;.r <br /> •�.`�. ti ti• ti•ti�ti•�• <br /> I I }�� t•t•r•r•�' <br /> 'TREIVCH LENGTH .ti.;.�....:. ti.,.ti.,.... <br /> r•r•f•r•r•r• f•r.r•r•r•r <br /> .ti.ti.ti•ti•ti•,•ti�.•ti•ti•,•ti•ti• �a <br /> P. SC1eCt trenCh width= �? ft {f;!{{;S�!;{;Sti:;.f�::!;S;'.• ' <br /> Divide bottom area b trench width: (H I J ar K) P= f'''"r'''�'r'`'f'''f'r'f'f <br /> Q. Y r r i + y�ti�l��lil I�lit�t�t�f~f�J <br /> f'�:'•� 6�24 inch <br /> ti ti•,,•,,•ti.ti.ti•ti•ti••.••.•ti• <br /> linral feet f•r.r•r•+•r•r•r•r.i•.•.r•r ��k liclow Il�r <br /> .ti.ti.ti.ti.�.,,.•..ti.ti.ti.ti.ti.ti. <br /> r.r.r.r•r.i•r•f•r•r•r•r.r <br /> :�;-�.� '' a��.,��111Ca� fCC� •ti.ti•ti•�•ti•ti�ti�•t��•�•ti•ti� 1 <br /> ♦.r•.►•r•f•r•a.r•f•.•.••r•f <br /> LAWN AREA .�•ti.ti.ti•,,...... �.•..ti.•..�.ti. <br /> dN�r�r�t•l�hr�l�J•I•t•r <br /> •�•ti.1•ti•ti•�.•ti �•ti•ti•ti•ti•ti• <br /> � •t�t•I•/•1jl•l•I•t•t•t•t�t <br /> � R. Select trench spacing,center to center= s> ic.�c•t . <br /> S. Multiply trench spacing by lincal fect R x,Q=sq ft of lawn arca <br /> =`ry„x t' =�sqFt <br /> LAYOUT(Use othcr sidc) <br /> . l.Select an appropriate scale;one square= feet. <br /> 2.Show pertinent property boundaries,right-of-way,easements. <br /> 3.Show location of housc,garagc,drivcway,aiid all other <br /> improvcmcnts, existing or proposrd <br /> 4.Show locadon and layout of sewage trcatmcnt system. <br /> 5.Show location of water supply wcll. <br /> 6.Dimension ail set backs and scparation distanccs. • � <br />