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FLOW <br />A. Estimated 30n ® gpd <br />measured L_x 1.5- __ gpd <br />SEMCTANK,VOLUME <br />D. 75'6* <br />- gallons <br />SOILS (Site evaluation data) <br />C, Depth to restricting layer ­;W,'2LC =--jS_" feet <br />D. Maximum depth of system C - 3 R _tX!=_22_ feet <br />E. Texture..-55�kmaytPercolation rate • • —I MI'l <br />F. SSFAIX-2 sq ft/gpd <br />G. Slope _19—!/6 <br />TRENCH BOTTOM AREA <br />H. For trenches with 6 inches of rock below the pipe. <br />A x P = — x _._:I — sq ft of bottom area <br />I. For trenches with 12 inches of rock below the pipe: <br />AxFx0.8 =—x—,xO.8 =—sqftof bottom area <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 <br />K. For trenches with 24 inches of rock below the pipe: - <br />Ax FxO.6 = _x__x0.6 =—sqftof bottom area <br />BED BOTTOM AREA <br />L. For seepage beds with 6 or 12 inches of rock below the pipe; <br />1.5xAx F= 1.5x—x—=—sqftof bottom area <br />M. Rock depth below distribution pipe plus 0.5 foot times bottom area; <br />M =Rock depth + 6 Inches x Area (KIJLK) <br />+ 0.5 fl) k cu ft <br />ROCK VOLUME IN CU YDS <br />N, Volume in cu ft divided by 27 <br />M + 27 = cu yds — + 27 n cu yds <br />ROCK WEIGHT <br />O. Cubic yards times 1.4 = tons <br />N 1.4 = tons—x 1.4 =—tons <br />SYSTEM LENGTH <br />P. Select trench width = —_ ft <br />Q Divide bottom area by trench width: (H, 1, J, or K) t P <br />lineal feet <br />® + __ = ® lineal feet <br />Q1. GraveUess Design <br />A x F + (3 for 10" pipe, 2 for 8" pipe, width of the Chamber) <br />3&6 xjX-+ = J)a feet <br />LAWN AREA <br />R. Select trench spacing, center to center - — feet <br />S. Multiply trench sparing by lineal feet R x Q = sq ft of lawn area <br />—x—=—sqft <br />LAYOUT (we other side) <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, driveway, and all other <br />improvements, existing or proposed <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 separation distances. <br />M �- i "'" I , 1, 1 , I <br />19 <br />300225 <br />180 <br />6M <br />MW <br />30D315 225618 <br />ddo <br />, <br />6 <br />1500 <br />"1 <br />1 <br />750 <br />450 294 <br />In <br />900 <br />525 332 <br />1.67 <br />1050 <br />6W 370 <br />w <br />N N M WIN <br />stptic TMk capecitus ((a PH—) <br />Number of I hfinimum Uquidi UquW c4*1y with <br />2 or Im <br />P" <br />750 <br />1125 <br />3 or 4 <br />1000 <br />1500 <br />5 or <br />1500 <br />2250 <br />7,8 or 9 <br />2000 <br />3000 <br />80 C"racUrktits and Requimd Am" <br />1 <br />WIA01h I WIT""* <br />Palut dm 0.10 <br />CI <br />0.1 t05 <br />SAW <br />0.83 <br />0,1(05 <br />Fine Suld 10 <br />1.67 <br />6101S <br />Sudy LOAM - <br />127 <br />16 to 30 <br />1.67 <br />31 to 45 <br />S= <br />2W <br />46 to 60 <br />My" <br />2" <br />S1"wdm604** <br />MAY <br />• tares <br />Uso PI for rsI pmu" mAh. <br />Soll kavLaj W% at woo d Rao uad <br />ribill <br />::eon = bo Ivi Puftatuo C(CIAY for <br />lnuIlidw tnaat.a1.yawL <br />18-36" Vfidth <br />Geotextile Fabric <br />t 2' Rock Cover <br />0�� <br />ramp-81F&A <br />