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1 <br /> • <br /> 'INDIVIDUAL SEWAGE TREATMENT SYSTEM WORKSHEET <br /> FLOW Estimated Sewage Flow is Cagan pa Day(;pd) <br /> A. Estimated 5 Z2 <br /> measured x 1.5.s ad <br /> Nur 'i,- 1 'type n 'type m Type tv <br /> SEPTIC TANK VOLUME2 <br /> B. 2 e IpIY) gallons 3 4450 3300 21$4 600 373 256 Le <br /> SOILS(Site evaluation data) 5 750 s2�s am <br /> � <br /> 332 ' <br /> C. Depth to restricting layer in feet 71� 6033 4011 <br /> D. Maximum depth o!system C-3 ft is 3 feet <br /> E. Percolation rate /7 MI'I 14 <br /> F. SSF I.Z7 sq ft/gpd Number ��.oe�r ppe��ears, <br /> Bedro°ms =. .. fp=i <br /> TRENCH BOTTOM AREA <br /> H. For trenches with 6 inches of rock below the pipe: 2 or less 750 1,123 <br /> A x F• x = sq ft of bottom area 3 or 4 1,000 1.500 <br /> I. For trenches with 12 inches of rock below the pipe: 5 or 6 1,500 2.250 <br /> AxFx0.8is x x0.8= sq ft of bottom area ova9 See C-6 (i 15) <br /> J. For trenches with 18 inches of rock below the pipe: <br /> A x F x 0.6638 552 x 1,17 x 0.66=s sq ft of bottom area sail u•e.O.rf,ess.R•.a•+Amstar SoarSeamen( <br /> K. For trenches with 24 inches of rock below the pipe: v i,.c•p7iir so0 Te ctu a;y,,r"., <br /> AxFx0.61s x x0.6 <br /> sq h of bottom area "°•"cew.�' <br /> BED BOTTOM AREA Faster than 0.1° Coarse Sand — <br /> 120 <br /> L. For seepage bed0.1 toS Sand 0.83 <br /> s with 6 or 12 inches of rock below the pipe; 0.1 to s Fin.Sand" 147 0.60 <br /> iS x A x F••1.5 x x = sq h of bottom area 16 o1330 Sandy 127 0 0 <br /> 44to60 ulavtL' m 2.20 2.00 o s <br /> ROCK VOLUME IN CUFF Slower than 60r" czary — (024) <br /> M. Rock depth below distribution pipe plus 0.5 foot times bottom area: • „� • <br /> M=Rock depth+6 inches x Area(H,I,j,L,K) nieble oft <br /> S 'c ;ro «a' <br /> '�'S•iwidsetiinpAadendedtage Vika.(_. +0S ft)x• ._/Up cu ft be <br /> swnra.b*,pon.+•�+•,•aa. <br /> ROCK VOLUME IN CU YDS <br /> N. Volume in cu ft divided by 27 <br /> M+27=c:uyds&+27= cuyds <br /> ROCK WEIGHT <br /> O. Cubic yards times 1.4=tons <br /> N x 1.4=tons 3NL3,x 1.4:all_tons .. ' <br /> DISTRIBUTION r'i .. <br /> '11t. •4d:" _''ed is <br /> (Check one based on slope) jjC' ) - <br /> Bed(lessthan6 roslope) ...r.... :.`.k.`1...,mi%iW::4-:".:44.h aAlKr'P�: <br /> Trenches <br /> _Drop boxes(any slope) <br /> Distribution box(level to slightly sloping) <br /> TRENCH LENGTH 'i`; `A 0 ' ; 2 inch Cove: <br /> P. Select trench width: 3 ft 4 fti `_ t. '• •�, ;. <br /> Q. Divide bottom area by trench width: (H,I,J,or K)+P a " OVA%%t': t.f. 4 r• i• 4Incb Pipe <br /> lineal feet ',-i3s`� .� ~.'+. .=f�,lineal feet 4. f ��fY's�� <br /> LAWN AREA 1 <br /> R. Select trench spacing,center to center= feet 1i" r • 4. 4 il <br /> is <br /> S. Multiply trench spacing by lineal feet R x Q s sq ft of lawn area .'i4 ti_Zs % , 624 ininch <br /> x sq ft f• f �;• •tatil_,. e It iti Roclk Below the Pipzire <br /> h <br /> LAYOUT(Use other side) ~`�`�`�` `•` <br /> ti.ti.ti ti. Am. i, '� <br /> 1.Select an appropriate scale;one square., feet. <br /> 2.Show pertinent property boundaries,tight-of-way,easements. <br /> 3.Show location of house,garage,driveway,and all other <br /> . improvements, existing or proposed •�-•l 4'• <br /> 4.Show location and layout of sewage treatment system. <br /> S.Show location of water supply well. • • <br /> Figure D-26 <br /> 6.Dimension all set backs and separation distances. _ <br />