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T'NDIVIDUAL SEWAGE TREATMENT SY5TEM WORKSHEET
<br /> FLOW Estimated Sewage Flows in Callons per d�y
<br /> ;�. Estimated (r4 O gpd �g��
<br /> measured -- x 1.5= -= gpd um r
<br /> SEPTIC TANK VOLUME of Typ�I Ty�n Ty�III Typ�
<br /> Bedrooms �V
<br /> B, '�, -- !;;��p gallons
<br /> F'a'�t:�` �•�'TX. 2 300 225 180
<br /> SOILS(Siteevaluationdata) '<<'�'-� �• �;, q 600 375 256 °�`
<br /> C. Depth to restricting layer= y�►o �S� � `� � fect �%��'� �� �'��
<br /> S 750 450 29-1 ��
<br /> D. Maximum depth oE system C-3 ft = "; � fect �";,"',"' 6 900 525 332 >>�c��•
<br /> ' �, ,� '�'�r`� 7 1050 600 370 �1 w
<br /> E. Percolation rate S•�� MPI 'T""� � -'='
<br /> ft d (Scc tablc 3) ����Yl yY� sc��L_ g 1200 675 ao8 �„���,�.
<br /> F. Soil Sizing Factor [1,�2 sq /gp
<br /> TRENCH BOTTOM AREA Scptic Trnk Capycilics,in gallun�
<br /> H. For trenches with 6 inches of rock belo�v the pi�x:
<br /> s ft of bottom arca �umtx:r of �tinimum LiquiJ Liquid cap•rci►y w•iih
<br /> A x F= x = q L3cJrooms Capaci�y garbage Jispusnl
<br /> I. For trenches with ]2 inches of rc�ck belo�v the pipe: 2 or i�s: �so ii2s
<br /> A x F x 0.8= x x 0.8 = . sq ft of bottom arca � 3 0�a iab i s�x�
<br /> ]. For trenches with l8 inches of rock below the pipe: . a o�6 �sW Z�s°
<br /> 7,8 or 9 20(Xl 3cxx1
<br /> A x F x 0.66= I::'-� x /.�x 0.66=�sq ft of battom arca ti�•'o o.•�r q ----•-
<br /> K. For trenches with 2� inches of rock belo�.� the piF�e: `�a�`�'c;�
<br /> AxFx0.6= x x0.6= sqftofbc�ttomarca
<br /> BED BOTTOM AREA
<br /> L. For seepage beds with 6 or 12 inches of rock belo�v the pipe;
<br /> l.5 x A x F= 1.5 x x = sq ft of bottom area SoD Ch�ractcristks ynd Rcquircd An•rs
<br /> for Sewa�c Trc•rUncnt
<br /> ROCK VOLUME IN CU FT ������R�k� squue Ga►Ions
<br /> h1. Rock depth below distribution pipe plus 0.5 foot times bottom area: �u���,� ��,�n soaT�xwn r��� �:��•r P��
<br /> M=Rock depth(ft)+6 inches x Area (H,I,J,L or K) ��� a'e"�w�� w��rc r,�
<br /> (�_ ft+�.5 ft)x�,'L=�,�Cu tt faster�han0.1• Coarsesand ••••- •----
<br /> ROCK VOLUME IN CU YDS o.�ws s,�a o.ss �.zo
<br /> 0.1 w S Fina sand•• 1.67 u.60•
<br /> N. Volume in cu ft divided by 27 e�o�s Sandy Loam �._z1� 0.�9
<br /> M+27=cu yds��}+-27=,�cu yds 16`°30 �°'m 6�"� o.�,o
<br /> i a a �� m oso
<br /> ROCK WEIGHT . a6w6o c�,y�m 2.20 0_45
<br /> s�oW«�,.�60••• c��y
<br /> O. Cubic yards times 1.4 =tons
<br /> Nxl.4=tons�xl.4=�tons
<br /> DISTItIBUTION
<br /> (Check one based on slope) _ ' f•f•r'{'f'�'f'f'�'f�f�f�f T
<br /> .�. ti ti t ti ti.ti.ti••..;.ti.ti.ti.
<br /> Bed qess than 6%slope) f•f•f•j:+•f:f•f•,r,r•r•r 2 inch Covcr
<br /> .ti�t•�..ti.. ti•ti•.•.•ti••.• �
<br /> �i r r•f•r•f•r•f•r•r•r•f
<br /> Trenches _ . ,,;.ti..�.. ....ti..,.,..,.
<br /> . . •f.j.f.f. .��;1•t•l
<br /> . . .y.y.t.�. .••�..
<br /> �Drop boxes(any slope) f,,.,. :f:f•`•f
<br /> .,.ti.ti... . ti•;.•ti••
<br /> f r.f. l;t,t�f 4 inch Pipc
<br /> Distribution box(level to sli htl slo in ) ''•'" ' •�'f�f�'
<br /> S Y P � :fti;';. • ; ti.�:
<br /> '' TRENCH LENGTH r r ` ` r�f•r•�•f
<br /> ,ti,;,•,,ti,{. •,.•,.ti.•,.•,.
<br /> r•r•r•f•r•f•r•f•:••••1•f•r
<br /> P. SeleCt trenCh width=�,_ft •~•~•~•~•~•~•y ~•~•�•~•~•~• �a !/
<br /> t•t•t•l•l•I•t•J•1•J•1•t•l
<br /> .ti.ti.ti.ti.ti.•,••,.ti.�,.ti••...�•ti.•
<br /> . t•t•J•f•�•f•r•f•f•f:f'�•r
<br /> Q. Divide bottom area by trench width: (H 1 J or K)+P= •�•�.,.�.�.�•�•'•�•ti•.•'••.
<br /> i i i . tilti���ti�yltiltirtifti;�fti�:�rti�
<br /> . �IIlE'al !�� . . , . . . }•j•J•t•t•f•f•t•J•f•t•t•t•1 6-241(ICh
<br /> ti•ti•+•ti•+•ti•�•ti•+•ti•ti•ti•ti••Rock[iclow the I�i
<br /> 7�.+�_�lineal feet f'I'''f'f'f'''`.,.r.f.�.f.f 1�
<br /> �.�.�.�.�•,.� �•t•�•�•�•t' �
<br /> f.f.f.f.f.r.}.f.f.r•r•r•r
<br /> {•ti•+•ti•ti•ti•'.ti•ti•ti•ti•ti•ti•
<br /> f,r.f.f.f.�.f.f.f.�.f.f.f.f
<br /> LAWN AREA - �f?f;f�S'ftif;r r;'r;};;tir},
<br /> � R. Select trench spacing,center to center= 4� feet
<br /> S. Multiply trench spacing by lineal feet R x Q=sq ft of lawn arca
<br /> a�,x � =L.��s�l ft
<br /> LAYOUT(Use other side) .
<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 locallon and layout of sewage treatment system.
<br /> 5.Show location of water supply wcll.
<br /> 6. Dimen>ion all set back�an_I •: ��,r.��i��n ii;tar��•_•�.
<br />
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