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INDIVIDUAL SEWAGE TREATMENT SXS7�M WORKSH6ET
<br /> �,�W Estimued Sewage Flows in Gallons per day �
<br /> A. Estimated I `��> gpd � d �
<br /> Numba 17ype! IType Q 7ype� Type �
<br /> measured - x 1.5= - gpd or � j � «
<br /> SEPTIC TANK VOLUME • � � � �
<br /> s. l - /o 0 o gallons z � 3oo ns iso �, ;
<br /> . s � aso 30o Zis ora,� i
<br /> a 600 37s 156 „�„�
<br /> SOILS (Site evaluation data) s � �so aso 29a �
<br /> , � ,� � v 6 � 900 525 332 I Typ�1.
<br /> C. Depth to restricting layer= �- � �"d � -� feet I � I toso � 600 3�o i uor I
<br /> D. Maximum depth of system C-3 ft= I�"'�0 3 0'� feet s ; izoo j a�s aos i m
<br /> E. Texture ���'�`�'�`"�Percolation rate 31.t �IPI ' � •`C0�`°"'u �
<br /> F. SSF a,�.o sq ft/gpd
<br /> a Tanku thsiin lom�
<br /> G. Slope /o ,
<br /> l,iywJ capa�:m
<br /> ;lumt+anf �linimumLlyuid liywAopo�rywnA wiU�dic�x�sal&
<br /> TRENCH BOTTOM AREA ��1�-lw�`Q�- s"�"""" c'o°°" ����� ��r���:��
<br /> H. For trenches with fsinches of rock below the pipe: , ��';w;' ;o o i� ;iu�
<br /> A x F= /�o x �.� _�sq ft of bottom azea `'x� !s� =� Nxx,
<br /> 7.M�K Y .Of7D 10U0 1�Mri
<br /> I. For trenches with 12 inches of rock below the pipe:
<br /> A x F x 0.8 = x x 0.8= sq ft of bottom area Soil Characceristics and Required Areas
<br /> J. For trenches with 18 inches of rock below the pipe: for Se..a c Treacmenc
<br /> A x F x 0.66= x x 0.66= sq h of bottom are2 Patolation Rate in sq�ue
<br /> K. For trenches with 24 inches of rock below the pipe: Minutes�r�ncn soii T�xc,�e (ac per g�llon
<br /> A x F x 0.6= x x 0.6= sq ft of bottom area �M p �er aar
<br /> BED BOTTOM AREA Fuc«�hm o.� • couse s�na --
<br /> 0.1 to S Susd 0.83
<br /> L. For seepage beds with 6 or 12 inches of rock below the pipe; o.i co s Fne Suid•• i.6�
<br /> 1.5 x A x F= 1.5 x x = sq ft of bottom azea 6 0 30 S�oY�o� i.e7
<br /> 31 to a5 Silc Loam '_.00
<br /> ROCK VOLUME IN CU FT ��� ctay t,.oa�r, c�
<br /> Slowet than 60••• Cl�v
<br /> M. Rock depth below distribution pipe plus 0.5 foot dmes bottom area: • so�i�oo co.rx ror��g�vwu���
<br /> M=Rock depth+6 inches x Area(H,I,J,L,K) u:e:v:tems ror rap�dly permub�e:o�ts.
<br /> '• Soil tiavmf 5096 or morc of fine sand
<br /> ( +�.$ft�X = �Et plus vm fine s�nd.
<br /> ROCK VOLUME IN CU YDS •••soi�wit1�too hiqn a p�rcennac of c►�y tor
<br /> N. Volume in cu Et divided by 27 ����+�^a��►�aro�:w�dud:y:��n.
<br /> M+27=cu ds_+27= cu ds
<br /> ROCK WEIGH'T Y 6 inches=��- 0%"zReduction*
<br /> O. Cubic yards times 1.4=tons 121nches=ZO% Reduction
<br /> N x 1.4=tons x 1.4= tons 18 inche�=34°!�"Rednction
<br /> 24 inche��40°r:Reduction
<br /> SYSTEM LENGTH *sizing for�gravelless trench
<br /> P. Select trench width= 3,o ft
<br /> Q. Divide bottom area by trench width: (H,I,J,or K)+P=
<br /> lineal Eeet Geotextile Fabric
<br /> dtr...od:.4't:6•t*a,..:dt:��oa�
<br /> �+ 3_D =�lineal feet�� „�;oo..;..,.•,��.�4.��Ooi:vir..s i Z"Rock Cover
<br /> e:�`�a�,?�i.o �rr�.r.o's�r�,o
<br /> Ql. Gravelless Design o�broQ, "=�j(����•
<br /> A x F+(3 for 10" pipe,2 for 8"pipe,width of the Chamber) o:.."o;" ,'•.a:°..
<br /> a.:).�.,,. .�D,�oo� 4"�Bat't'i�5e
<br /> X t = f�f �.o.�•�.w o�`��.o•
<br /> t�e:�.��. .�:e.1D)
<br /> divcv..., :C�'�'d�'
<br /> o.w...00�.,,
<br /> ..00ayaY.... 'io ••'(::.�-�:. .v
<br /> :d o,G..o..a o
<br /> L.�►V1IN AREA �4,•�.:..;,00e>,�..a.•...a a. oc
<br /> R Select trench spacing center to center=�feet (j�oabo!d(aabd`��-oa-.�-a
<br /> � o:a�,�•.;e.:p�Y4.:.r..�P QO.rw�PO�
<br /> `a�.�t. ,*•r.�.'.:wr.wv:�'. (pQ!�.a'�
<br /> r G',�v0`o°`0•o°`a"6.�':.�.�`.:
<br /> S. Muld 1 trench� acin b lineal feet R x Q=s ft of lawn area .p� � e„
<br /> P Y P 8 Y q o,a�oaw :
<br /> t v..e.�.i�.: ..e:r.. � ���G.aol �1����i�
<br /> • �.Z x r =,���$C�1� Gy(jt:� o'wo0�!�.v0 p��(Q,
<br /> i��..e�� Of�i1�1w•��DOSIw. � .e�i�� �,� � .� �
<br /> p�� "(.,�.�o OQ�O OQvr.�' v:a j 0 ��/ � "' �/ �11
<br /> � o'�).:i�w.� 04w�Ppi e�e
<br /> b�jtQ; �.o;t.o;.r.r.r.v.�.�
<br /> LAYOIJT(Use other side) o„ ,p,�Q,;P�o„�.° ,,4 ,,
<br /> �.r.,•�.v.wo,ao•,.r.r!'(.�.. .wo, � O 1 Y�.
<br /> a: :a - b
<br /> t r
<br /> 1.Select an appropriate scale;one square= feet. • ,,+,o o��er.4:r?:.�o,:•.. +.�: U�,4,,-��,�fS�
<br /> Q��.G Qi.'O•r:r.�.N,a�Op. �i�l:
<br /> 2 Show ertinent ro e boundaries ri ht-of-wa easements. �•�4;. "¢;o��aa`� '.'•, �14�
<br /> P p P m' � g Y� Q'toabc: i'.o.-. �.p oa..
<br /> 3.Show location of house,garage,dziveway,and all other
<br /> improvements, exiscing or proposed 18-36"Width
<br /> 4.Show location and layout of sewage treatment system.
<br /> 5.Show location of water supply well. ,'� ,
<br /> 6. Dimension all set backs and separarion distances.
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