Laserfiche WebLink
SEEPAGE TRENCHES <br /> <br /> Total Gravel L = Minimum Standard Disposal Trench Length <br /> Gravel Depth per 150 Gallons of Daily Sewage Flow. <br /> Depth Req'd <br /> Req'd. Below Length of Seepage Trench Required per 150 <br /> Pipe gallons of da~.ge flow. <br /> <br /> 12" 6"' 50~ 75~ 100~ 125~ 150~ 175~ <br /> 13 7 48 72 96 120 144 168 <br /> 14 8 46 69 92 115 138 162 <br /> 15 9 45 67 89 111 133 156 <br /> 16 10 43 64 86 107 129 150 <br /> 17 11 42 62 83 104 124 145 <br /> 18 12 40 60 80 100 120 140 <br /> 19 13 39 58 78 97 116 136 <br /> 20 14 38 56 75 94 113 131 <br /> 21 15 37 55 73 91 109 127 <br /> 22 16 36 53 71 88 106 124 <br /> 23 17 35 52 69, 86 103 120 <br /> 24'I 18 34 50 67 83 100 117 <br /> 25 19 33 49 65 81 98 114 <br /> 26 20 32 48 63 79 95 111 <br /> 27 21 31 46 62 77 93 108 <br /> 28 22 30 45 60 75 90 105 <br /> <br /> 29 ~-22~_.~ 29 44 59__ 73 88 103 <br />~ 24,/ 29 43 -57 72 86 100 <br /> <br /> Umuia--dsed: Seepage Trench Le~'~= 4 X L <br /> ~ (3+2D) <br />(in %he formula, D is expressed in feet) <br />(factors rounded to next highest value) <br />The projected daily sewage flow shall be limited to a maximum of <br />four hundred fity (450) gallons. <br /> <br /> <br />