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1NllIV1UUALSEWAV� 'IKEA"1M�Ni' SYS�1'EM WU1tK5H�h1
<br /> � D-25
<br /> �'�W Estimatcd Scwegt Flow in C�Uons pct Day(gpd)
<br /> A. . Estima�ed LD U gpd
<br /> N�bcr
<br /> measured -. X 1.5= - �j� o( Typc 1 Type II Typc III Type IV
<br /> SEPTIC TAI�1K VOLUME t�`d`°°`r'S
<br /> ,
<br /> B. � --f Q�Q gallOns 3 a 0 300 218 �
<br /> 4 bOp 375 256 i°`
<br /> 5 750 450 294 ���
<br /> SOILS(Site evalt�adon data) 6 90o szs s32 �
<br /> ,r i� � i�so t,00 s�o ot°"
<br /> C. Depth to restricdng layer= ;�p -I i� ?,��� feet g �Zoo 6�5 408 `°'"�'
<br /> D. Maximum depth of system C-3 ft= I�"��� � '��� feet
<br /> E. Percolation rate_(��____I�tPi �� __�__
<br /> F. SSF �_�7 ;:l )r%`_;,<i , �qti�� I�.-z.G �� � _ -... .�....
<br /> ;�,_,�: :� _.. : � -
<br /> '`' . ;.�.�i � � -- ,,t
<br /> G i
<br /> TRENCH BOTTOM AREA B��� �8��°� �'�� ���
<br /> � H. For trenches with 6 inches of rock below the pipe:
<br /> A x F= x = s ft of bottom area 2 or less 750 1,125
<br /> q 3 or a 1,000 1,s00
<br /> I. For trenches with 12 inches of rock below the pipe: 5 or 6 1,500 2.250
<br /> A x F x 0.8 = .�'o x ,L�,'�x 0.8 = Y`" I sq ft of bottom area-1tih����� �°`8 2•000 3,000
<br /> J. For trenches with 18 inches of rock below the pipe: over 9 Sce f,g.C-6 (z 1.5)
<br /> A x F x 0.66 = x x 0.66= sq ft of bottom area �;,o,,,�,�,,eo4ie.q,,,�,ti�,,,o,k,,,,��,m,a„
<br /> K. For trenches with 24 inches of rock belo�v the pipe: r�,,,,�r�„ �,,;� ;';,,
<br /> A x F x 0.6= x x 0.6= sq ft of bottom area M"°'��d s�il r«c�,� °"'' ''=„�
<br /> BED BOTTOM AREA Fastcz[han 0.1• oarx Sand — —
<br /> 0.1 to 5 Sand 0.83 1.20
<br /> L. For seepage beds with 6 or 12 inches of rock below the pipe; o.i�os FineSand� �.6� 0.60
<br /> 1.5 x A x F= 1.5 x x = sq ft of bottom area 6 co is u,ay t,o�, �.zZ� o.�v
<br /> 15_to3Q___- ._Loam Q.47� 0.60
<br /> 3]to 45 Silt Loam 2.00 OSO
<br /> ROCK VOLUME IN CU FTg s�oWQ i���-- �,��y� 2�� co�a�
<br /> M. Rock depth below distribution pipe plus QS foot times bottom area: .��o��e �.g��
<br /> M =Rock depth,+ 6 inches x Area(H,I,J,L,K) U�eryccr.tornpi�pmru.dr.o:la
<br /> "So�h..v+g SO�L or ot fv�e or vw Sne..nd
<br /> ( J.r i +O� ft)x 4'�1 — �1=��Ct1 ft •-s�..�.�ba�.�,�.�aa.Y�a
<br /> — wWLtion d.n inpw+d.wdud.y.ia.
<br /> ROCK VOLUME IN CU YDS
<br /> � N. Volume in cu ft divided by 27
<br /> M+27=cuyds�+27=�cu yds
<br /> ROCK ti�VEIGHT
<br /> O. Cub�c yards times 1.4 = tons 6 inches= 0�'o Reduction*
<br /> N x 1.4 = tons�_x 1.4 ='�i tons 12 inches= 20% Reduction'
<br /> 18 inches= 34% ReducEion
<br /> DISTRIBUTION 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 /> DistribuHon box(level to slightly sloping)
<br /> r•r•r.r•r•r•f•r•r•:•r•r•f• T
<br /> TRENCH LENGTH �•ti•�•�•�•ti•�•ti•ti•ti'�''ti'ti•�
<br /> f f r.r•r.r•�•f•r.f•r.f•r� 2 inch Covcr
<br /> P. Select trench �vidth= � ft � '�� � ` ~ ~ � 1 ��~ ~ � ~ J�
<br /> f.f.�•f-r.:•�•r•f•f•f•f•�•
<br /> �.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 '�f�'�f� �
<br /> :.ti.ti.ti. ti•ti•ti•ti•ti
<br /> .}•l•J•J t•d•t•J•
<br /> ti.ti.ti.ti. ti•ti•ti•ti
<br /> lineal feet tifti;ti;ti, f�f1!tif� 4 inch Pipe
<br /> ��=�_�lineal feet f�f�'�` f�f�����
<br /> �.ti.ti•ti• �•ti.ti•1
<br /> J•f•l•f• f•f•d•.'•
<br /> 1.\.1•ti.ti• 1•ti•T.ti•ti
<br /> LAWI\T AREA �:tiftirtifti:ti:ti.lflftiftiftijtif'ti
<br /> f'f'"r'''f'f'"f'f'''''f� la��
<br /> R. Select trench spacing,center to center= � feet �f:f'f�f%�l�J~l~l�rtf,f,f1f~
<br /> ♦.ti•ti•ti•5�•ti•ti•1•ti�ti.ti•ti•ti•1
<br /> S. Muitiply trench spacing by lineal feet R x Q=sq ft of]awn area f'f�f�f�`'f'f�f�'�'�'�f�f�
<br /> ti•ti•ti•ti•�'ti'�'�''''•'�'"ti'~ �24 inch
<br /> r•r•r•r•r•r•r•r•r•r•r•r•r•
<br /> �_ ti�ti�ti�ti�ti�`���ti�ti.ti�ti�ti����
<br /> o�J X �/ -r��� Sq ft `fif�,r�fi��J�J�l�J�l�J�t��� ROCk HCIOW TIIC P1FX
<br /> J.t•f.J.�•!•f l•�'f�f�j•f• �
<br /> ti.1•ti•ti•t•ti•ti ti•1•ti•ti•1•ti•'L
<br /> f•!.J•l•l•J•f l•f•r•f•f•f•
<br /> ti.ti.ti.�.ti.\•\•1•1•ti•1•ti•1•'1�
<br /> LAYOUT(Use other side) �f;���tifti'+'•ti��'•ti'•�'•���f���
<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,drivetivay,and all other
<br /> ) improvements, existing or proposed
<br /> 4. Show locadon and layout of sewage treatment system.
<br /> S.Show location of water supply �.•ell.
<br /> 6.I?imension all set backs and separation distances. Figure D-26
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