|
INDIV'iDU�I. SEWAGE TREATMENT SYSTEM WORKSHEET
<br /> :--
<br /> � �.Ow D-7
<br /> A. Esrimated gpd (See D-7 or I-3,4,5)or ESTIMCT�D ScWAGc �Lo'NS IN GALLONS P� OAY
<br /> ' measured gpd NUMBER TYPE OF RESIpENC'c°
<br /> ' SEP'I'IC?ANK VOLUME BEDROOUS I � II L'"i.. �
<br /> g, gallons(See C-3 or C-5) 2 30o z23 i eo sos
<br /> 3 450 300 218 0�
<br /> 4 6C0 3TS 256 �°��
<br /> SOILS (Site evaluation data) 5 75o a�o Zsa rY�:�
<br /> C. Depth to restricting layer= � �-�-' feet 6 900 525 �z a.
<br /> D. Maximum depth of system C-3 ft= f�t e i zo�o � 6� 4oe coi��s
<br /> E. Percola on rate MPI
<br /> F. SSF o�sq ft/gpd(See D-b,B-29)
<br /> TR�CH BOTTOM AREA
<br /> H. For trenches with 6 inches of rock below the pipe: C-3
<br /> A x F=�3 x�_=�,�sq ft of bottom area SEPTIC TANK CAPACITIES, IN GALLONS
<br /> I. For trenches with 12 inches of rock�lo the pipe: uo��o��PA�m
<br /> A x F x 0.8=�x�x 0,8 =�q ft of bottom area r+u�aeEa cF MiraMun� WfTH GAR04GE
<br /> e�aoors uauio CaaACrrr otsaosa�
<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 z oa�ess �so i i zs
<br /> K. For trenches with 24 inches of rock below the pipe: ,oA. ,000 � ,sao
<br /> AxFx0.6= x x0.6= sqftofbottomarea SOH6;' ,soa z2s
<br /> BED BOTI�OM AREA �.e.OR 9 z000 00 �
<br /> L. For seepage beds with 6 or 12 inches of rock below the pipe;
<br /> 1.SxAxF= 1Sx x = sqftofbottomarea ,
<br /> ROCK VOLUME IN CU FT'
<br /> M. Rock depth below distriburion pipe plus 05 foot times bottom area:
<br /> tii =Rock depth+6 inches x Area (H,I,J,L,K) B-29
<br /> � +05 ft)x = cu ft 501� ��FOR�RSEWIGE TREA'McNT�D GAEAS
<br /> - ROCK VOLUME IN CU YDS
<br /> soi� a•aac�.aisrics soi� rrn�rMo+r u+ecs
<br /> N. Volume in cu ft divided by 27 pEqmUiION RiTC y�i� SaVeRE R:'f GeLLOM �.A
<br /> M+27=cu yds_+27= cu yds iwNUT6��EA �Mw T�� I �d`°" s«'pE`�
<br /> ROCK WEIGHT ,.�„�o.�• �� v,,�o —� —
<br /> O. Cubic yards times 1.4 = tons o.� ro s _su+o o.as i.a�
<br /> QI TO ] fIME S�MO� Id7 0.60
<br /> N x 1.4= tOIlS -x 1.4= tOI15 °T° �� s°"°T�c"' �2T aT9
<br /> - is� jo �cau i.sr aso
<br /> 7t TO a] SiLT LOu.� 200 0.70
<br /> DISTRIBUTION �6� co a.'r�n°" uo au
<br /> SiawEFt n�w 5a� cur
<br /> (Check one based on slope) °y��-_.-----�-^�.w��-�--- .^---
<br /> �L,..-.�..e...,..w.......�..�,��.,�.
<br /> Bed Qess than 6%a slope) `����-^�-��^�-��--..^�-w.-�--^�-�
<br /> Trenches
<br /> Drop boxes(any slope)
<br /> Distribution box(level to slighdy sloping)
<br /> TRENCH LINGTH f•f•l•�•f•�'1'f'f.r.f.f.;. T
<br /> ti.ti•ti ti ti•ti •. ti.ti•�•ti.�.•'.•'• 2 inch Co
<br /> •t 1•l�l.f.J.j.r.f.r.r.f.l• VCt
<br /> ft •. � ti.ti.ti.•..•..ti.ti.�••.•ti••.•� �
<br /> P. Select trench width= �f'f:f:'��`'f'f�f�f�f�f�?�•
<br /> P- , ;f:f.:,f.. .,r:f,f.f_;.
<br /> Q. Divide bottom area by trench width: (H,I,J,or K)+ �'�•~•`-• `.`.~.•.•�
<br /> f.r r•r r•r•r•�•
<br /> lineal feet ��f�f=f~: f�;'r'1� 4 inch Pipe
<br /> �• �•~f�f f:,.�t:1:
<br /> + = lineal feet �'`'~'�' �'�'�'�'
<br /> f,f,f.f. .f.f.l.l.
<br /> ti•t••.••.•ti• ti•ti•ti•ti'�•
<br /> LAWNAREA •f.f.f f�'�,;� : f•r�f�f•r•
<br /> .��.f,f:f'f:•.f'f.l:f.f� �:�,
<br /> feet �:�.ti.•..ti.ti.�..,.ti..,..,.ti.ti.•.
<br /> R. Select trench spacing,center to center= • f�f�f•f•f•r•�•f•�•f•�'�'
<br /> ti.�.ti•ti••.•�•ti•�••..•..�•ti•ti•�
<br /> r•f•r•r•r.f.r r•f•r•r•.•.• b-24 inch
<br /> S. Multiply trench spacing by lineal feet R x Q=sq ft of lawn area ;;�•�''•'�'�'�'�''•''•''•'~'"•'`
<br /> 1•r•l�f•f•�•f`�•�•f•�'f'
<br /> ti.t.t.�.`..�.ti.ti.ti•V•'..•�.•.•ti
<br /> x _ � ft �.r•r•f•r•f•f•f•r•r.r•f•r•�Rock Below the i:
<br /> t•�•�•�•�•y•�•'••�•�•�•'•'�•`� y
<br /> •• :•: 1•:•f•f•:•:•�•l•
<br /> •:•.•. ti:�,:�,.•.•'.••.••.••.••.�'.••.
<br /> . .� f�f f ��f�f�f f f�����
<br /> ti:ti:t.ti.�..•..•..ti.ti.•..•..•.•'.••.
<br /> LAYOUT(Use other side) �f�f~f�r�'�f�f~'�f�'�f~f~�`
<br /> �`- =� 1. Select an appropriate scale;one square= feet.
<br /> � 2.Show pertinent property boundaries,right-of-way,easements.
<br /> 3. Show location oE house,garage,driveway,and all other
<br /> improvements, exisring or proposed
<br /> 4. Show locadon and layout of sewage treatment system.
<br /> 5. Show locarion of water supply well.
<br /> 5. Dimension all set backs and se�aration distances.
<br />
|