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, ;NDIVIDUAL SEWAGE TREATMENT SYSTEM WORKSHEET
<br /> ( D-2�
<br /> � �"�W En;muc.d Scwage Flo�in Gallons pc D■y(�d)
<br /> A. Estimared (�Sy gpd s�� L�'�-
<br /> ���
<br /> measured — x 1.5= ---- gpd or ryv�� ry�❑ Ty�ni T��rv
<br /> � SEPTIC TAI�TK VOLUME Bcdro°a15
<br /> B. a-/�oo gallons v-�� � �aw�s s soo 2u �ao �:�
<br /> 3 450 300 218 �
<br /> �- /000 �\L>l�"fG� 4 600 375 256 "
<br /> SOILS(Site evaluadon dataD 6 90o su s3z �
<br /> C. Depth to restricting layer= S�-�o"-�u 7 � � feet 8 12� 6600 ;� I �
<br /> D. Maximum depth of system C-3 ft= a.S feet
<br /> E. Percolation rate /D . 4 MPI
<br /> Number M`°mL'. y'°m�•—
<br /> F. SSF ,�,� sq ft/gpd of s`�� a°.���
<br /> TRINCH BOTTOM AREA ��A�t-��ss Bedrooms ��� �a�
<br /> � H. For trenches with 6 inches of rock below the pipe:
<br /> A x F= S x s ft of bottom area 2 or less 750 1,125
<br /> S� /.i�_��Q q 3 or 4 1.000 1,500
<br /> I. For trenches with 12 inches of rock below the pipe: 5 or 6 1.Soo 2,250
<br /> A x F x 0.8= x x 0.8= s ft of bottom area 7 or 8 2,000 3,000
<br /> 9 over 9 See fig.C� (x l.�
<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 area 501,�„e,,,vk„�,,,,,�.,,�,,,��,m,�
<br /> K. For trenches with 24 inches of rock below the pipe: P�,,o,�K.,. �-r �-
<br /> SO�Toc h1JC r v-� r�n
<br /> AxFx0.6= x x0.6= sqftofbottomarea '""" �,°`i "`" '"�'' '"�
<br /> B� B�Z'1'OM E�� Futa than 0.]' �arse Sand — —
<br /> L. For see e beds with 6 or 12 inches of rock below the � ; o.i to� s�,a o.sa ir�
<br /> �g p � 0.1 to 5 Fine Sa.id" 1.67 0.6,�
<br /> 1.5 x A x F= 1.5 x x_= sq ft of bottom area 6 co ls ay t.�, i,u o.:v
<br /> ]6 to 30 Loaai <'1.67� 0.60
<br /> 37 to 4i Silt Loa.m 2.00 O.iO
<br /> ROCK VOLUME IN CU FT as co bo aa��, zso �o��
<br /> s�oW��,az,�-- ,y
<br /> M. Rock depth below distribution pipe plus OS foot times bottom area:
<br /> M=Rock de th+6 inches x Area(H,I,J,L,K) ����������
<br /> P -�ti.����a`��.�
<br /> L—+ OS ft)x — _ — cu ft �s"'"""'°°"'""'��`dd'',;�
<br /> ;,�.uu.ea,d.�� .�.na..a.
<br /> � ROCK VOLUME IN CU YDS
<br /> N. Volume in cu ft divided by 27
<br /> M+27 cu yds_+27 cu yds
<br /> ROCK WEIGHT
<br /> O. Cubic yards times 1.4=tons 6 inches= 0% Reduction*
<br /> N x 1.4= tons - x 1.4= — tons 12 inches= 20% ReducEion
<br /> 18 inches= 34% Reduction
<br /> DISTRIBUTTON 24 inches= 40% Reduction
<br /> (Check one based on slope) *sizing for gravelless trench
<br /> Bed (less than 6%slope)
<br /> Trenches
<br /> �Drop boxes(any slope)
<br /> _Distribution box(level to slightly sloping)
<br /> TRENCH LENGTH if+r+f�fti'•tiftif+rtifti'•+'•ti'•tif� T
<br /> f•f•f•f•f•f•f•f•f•f•�•f•f• 2 inch Cover
<br /> P. Select trench width= 3.0 ft =lu'b�A. ��A�,� �`"_ ,.• � � `•� ~ ` � � � ~ ` • �
<br /> f•r.r...f•r•r•�•r•f•r•.•f•
<br /> ti.ti.ti.ti.ti.ti•• •ti•ti•,.ti•ti.ti
<br /> Q. Divide bottom area by trench width: (H,I,J,or K) =P = ''f'''f'f `�r'''f'
<br /> �.ti.ti•ti• ,•�•,•ti•ti
<br /> f•f•f•r {•f•f•f•
<br /> linea] feet ����~�`� ������~
<br /> tirti:ti:tir r`fti�tir� 4inch Pipc
<br /> �S� a`60 U�-�., f•r•r.r 'r•f•r•i•
<br /> �r�_�lineal feet— '�'�- 2•�•�•�• �•�•�•�
<br /> � ,a. �~�a� f'''''" f'`'''f�
<br /> LAWN AREA �.L�--,:,ti.�� ti-�..•�•�. ti•ti.ti.ti.ti
<br /> f.r•f.f.f. f•}•f•f•f•f•
<br /> ti.�.,•ti•ti•ti•ti•{•,•ti•ti•,•,•ti
<br /> R. Select trench spacing,center to center= feet f�f�f�f�f�f�f�f�f�j�f�f�f�
<br /> ti.ti.ti.ti.ti•ti.ti.ti•ti•ti•,•ti.ti.ti
<br /> r•r•r•r•r•r•r•r•r•r•f•f•r•
<br /> ti.ti•ti•ti•ti•ti•ti•�•ti•ti•ti•ti•ti•ti
<br /> S. Mulriply trench spacing by linea] feet R x Q=sq ft of lawn area r'f'r'`'''''f'r'''f'f'f'f'
<br /> ti.,,.ti.,.,..ti.ti.ti.ti•ti.,.ti.ti.ti
<br /> r.f.f.r.r•f.r.f.r.f.r.f.f. 6-24inch
<br /> x = sq ft �'��~�������`���~�����~��"
<br /> tirtirtirti:tirtirtirtir`ftir�ftirtirti Rock Bclow thc Pipe
<br /> tifti�ti!ti`tifbftijtiflftiftiftirtifl
<br /> tirtifti�{ftiftiftif�ftiftifti�tirti�ti
<br /> LAYOUT(Use other side) tif{Cti'.tifti`tifSf.ftiftiftif;fti'•ti
<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 T
<br /> � improvements, existing or proposed I "
<br /> 3a
<br /> 4.Show location and la yout of sewa ge treatment s ystem. / ��'o�fl•
<br /> 5.Show IocaHon of water supply well. , I`��'"'�� I �
<br /> 6.Dimension all set backs and separation distances. Figure D-26
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<br /> _ ay'� -
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