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06/15/99 WE, 17:29 FAX 770 433 5997 FACILITY ENGRS �J001 <br /> Sanitary Mound Design <br /> Total#of Employees(Includes Future) 35 <br /> jFrom UPC Table 1-3 use 35 GPD1Employ ae <br /> Average D ally Flow =35 Employees X 35gpd/cap = 1225 GPD <br /> Septic Tan k Size: 1200 gal+ADF =2425 gal 2500 gallon <br /> Leach Field: (Tank size+ADF) Soil FaaAor(Sewage standards 8.6.2) <br /> Minimum length = (2500+1225)"0.225 838 LF <br /> Pips Diameter 4 In. <br /> Capacity=841.5 LF x 0.0873 SF x 7.5 galfCF 551 gal. <br /> Dosing Tank is required <br /> (73%of leaching pipe vol umirof 55 gat) 400 gal. <br /> Trench Dimensions: <br /> Width 2 Ft <br /> i Depth 1.833 Ft <br /> Total absorption area [(2);0.83)+(2)j[840j 3074 Ft <br /> Mound Calculations based on EPA Design Man 62511-80-012, <br /> Chapter 7, Section 7.2.4, Mot nd Sys stems. <br /> Leaching area: <br /> Area required=1225 gpd 10.i5 gpolsf= 4,800 SF <br /> A(width] 66 Ft <br /> B(line length) Min.reqd. =45100166-74 Ft 93.5 Ft <br /> Mound Dimensions: <br /> D(fill depth) Tat le 7-9 <br /> E(fill depth) 2.83 Ft <br /> F(trench depth including stra N) 2.83 Ft <br /> G(cap @ trench edge) Tal ale 7-9 1 Ft <br /> H(cap @ trench center) Tat ale 7-9 1.5 Ft <br /> Mound Perimeter: <br /> I (downslope: [trench arealB• total trench width] 17 Ft <br /> J (upsfope: [D+F+G]'"3) 17 Ft <br /> K(side slope: [Df2+E/2+F+111*3) 17 Ft <br /> L(mound length: B+2*K (128 Ft Required) 132 Ft <br /> W(mound wldth: J+A+I) 100 Ft <br />