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<br /> � , �INDI�/IDUAL SEWAGE TREATMENT SYSTEM WORKSHEET
<br /> ��W Eatimued Sew�6e Flows in Gallons per dey
<br /> A. EsHmated �v o gpd � (spd)
<br /> '� mcasurtd — x 1.5= —= gpd um �"�
<br /> SEFTIC TANK VOLUME of 'typa 1 7ype Ii 7ypo III 'I�pc
<br /> B. '�— 1 �c� c� _gallons Bedroom� �V
<br /> 2 300 225 180
<br /> SOILS(Site evaluation data) 3 4S0 300 218 ��
<br /> C. Dc th to restrictin la er= 'i��"-f� !��-� vfcet 4 � 375� 236
<br /> P $ �' S 7S0 450 294 wM
<br /> D. Maximum depth of system C-3 ft= I•S%�o �.S� fect 6 900 525 332 �»«�
<br /> E. Percolallon ratc ��'� MPi , 7 1050 600 370
<br /> F. Soil Sizing Factor �.O sq ft/gpd(Sce tabic 3) �ti-o�r''� �s'`� g� 1200 67s 4og ��i�:.,.
<br /> TRENCH B01TOM AREA Scptk 71�nk Gp�cl�ie�,l�Rd1os�
<br /> H. For trenches with 6 inches of rock below the pipe:
<br /> A x F= x • f t of bottom area Nu�der or Minimum Uquid uqu�a aMu�r w��n
<br /> � IIedroomt Cap�city {rb�te dispo+al
<br /> L For trenches with 12 inches of rock bclow the pipe: '
<br /> A x F x 0.8��x 3„0 x 0.8�,�j,�Qsq(t of bottom arca�o`�►os�, Z3«�� I� i�sa�o
<br /> J. For trenches with 18 inches ot rock below the pipe: �«s tsoo 2�so
<br /> A x F x 0.66= x x 0.66= sq ft of botbm area 7o a 9 20°° 30°°
<br /> K. For trnnches with 24 inches oE rock below the pipe:
<br /> AxFx0.6= x x0.6= • sqftofbott�marca
<br /> BED BOTTOM AREA
<br /> L. For seepage beds with 6 or 12 inches of rock below the pipe; '
<br /> 1.5 x A x F a 1 S x x = sq ft of bottom area S��„�.�a�„u��,a tt�yu��e�,tiu
<br /> � fa SeMnRe 71�edment
<br /> ROCK VOLUME IN CU FT ���„R,�a s�u.� o.i��
<br /> M. Rock depth belo.w distribution pipc plus OS foot times bottom area: ��. u�n s�T..n� r«x�« �►a.r��
<br /> M=Rock depth(ft)+6 inches x Area (H,I,J,L or K) �"� ��e:�` ���° �""
<br /> 1. o f t+0.5 f t)x�a�_�,,�x cu f t p,�,a u�m o.�• caere s�n1 •—•
<br /> ROCK VOL•UME IN CU YDS o.t�os a�nd o.e� 1.20
<br /> o.t�o s t��e�.�a• �.6� o.�o
<br /> N. Volume in cu ft divided by 27 . 6e�s s.�ar tA.m i.rr o.�9
<br /> M+27=�u yds��+27=,,,�_�tt yds 16 a�0 i��m o:o
<br /> ROCK WEIGHT �6 e�o a.r i�.m . a � o.�s
<br /> . lower�h�n 6f1•�• (.ry�r .._. .._.
<br /> O. Cubic yards Hmes 1.4=tons
<br /> Nx1.4= tons�xl.4=�tons
<br /> DISTRIBU'TION
<br /> (Check onc based on slope) .r.r.r.,.r.r.r.r.r.,.�.�.r T
<br /> .ti.ti.�.�.t.ti.ti•ti•ti•aati•+•
<br /> Bed Uess than 696 slope) .,fti:;:;:;:;:;:,f;:;:,:;:ti: Z�C•OVCi
<br /> �r�I t�J����N�l�J�l�lrl�r
<br /> �ti�ti�ti�ti�S• •��ti�ti�L�y�
<br /> Trenches � f,•.r.f. f.+•f r+
<br /> ✓ Dro boxes(an slo ) ��'�f�f'� �`�';�;r
<br /> p Y }� '�rtir}ti J�t��ti1 4 lnch Pipo
<br /> •�,.t.� +•ti•.•
<br /> Distribution box(level to slightly sloping) •r•. . +•�•f•r
<br /> TRENCH LENGTH ����,��� y������•
<br /> .}.r.�.r. r.�•r.f•r
<br /> .ti.ti.ti.ti.ti. ti.ti.�.ti.
<br /> r •r.r f• r•r•r•�•r•r �►
<br /> P. Select trench width=�,_ft •�it�•�•'•�•�•�•�•�•~•�•y �
<br /> 1�I'�r�t�J�r hj���/�ht�!
<br /> •ti.ti.ti•�.�.ti.{•\•ti ti.ti•ti•1• a�
<br /> Q. Divide bottom area by trench width: (H I ) or K)+r= "'' `''' ''''`'"''f"
<br /> .�.�•ti•�•�•tiSti.� ti ti.ti.ti.�.
<br /> . . , ��r;ftiJtirt=tiftis���s�rtiftirti% 6�21inch
<br /> lincal feet �.+;rti� . •r.�. .
<br /> ;;�{;{�� { �{;. Rock tlelow�ha t
<br /> ?}73 S.r r �• r�?}!S r�
<br /> .�ti;•�• �•ti �. !� �•ti•
<br /> /o�1i+�=�.lineal fcet .t.�•f•r i� } I r�t?i•..r I
<br /> . .ti t ti • •� ti ti• �
<br /> LAWN AREA •�:i���'i':���`;�lf•� i.r}r
<br /> •�•J t I t I�}tiJyl:j�lti}
<br /> R. Select trench spacing,cenMr to crnter=�,feet
<br /> S. Muitiply tmnch spacing by lincal lect R x Q=sq ft of lawn arca
<br /> ?,.�3,x�,=�.1�sq f t
<br /> LAYOUT'(Usc othcr sidc)
<br /> ].Select an appmpriate scale;one square= feet.
<br /> 2.Show pertinent property boundarics,right-of-way,casements.
<br /> 3.Show location of housc,garagc,drivcway,and all othcr
<br /> improvcmcnt�, cxisting or propnsctii
<br /> 4.Show locaHon and layout of scwn�e trcatmcnt system. .
<br /> S.Slx►w lucMlcm n(wetcr eupply wcll. . . . . -. . ,
<br /> 6, Uimrnsinn�I1�rt bnrk�nnJ sc���rnli�m�Ilyl�nrr�,
<br />
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