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Mir Ali Report cont; pg-2 <br /> Size of mound system needed for a 4 bedroom home would be the <br /> following size; <br /> Sizing Factors; Daily Water Use---660 gal/day <br /> Estimated Percolation Rate 46-60 min/in <br /> Clay Loam Soil Sizing Factor <br /> Land Slope---5 % <br /> Overall Size-3956 sqq.ft. <br /> Upslope Length-81 ft. <br /> Downslope Length---91 ft. <br /> Width-46 ft. (Upslope-13 ft., Rock-10 ft. and <br /> Downslope-23 ft. * Absorption Width-27 ft.) <br /> Rock Bed Size-550 sq.ft. (Length-55 ft. Width-10 ft.) <br /> Amount of materials needed; <br /> Sand-218 yds. 305 tons Ave.Depth-2.3 ft. <br /> Rock-24 yds. 34 tons " ---1.0 ft. <br /> Sandy Loam – 24 yds. " ---1.0 ft. <br /> Topsoil 150 yds. "---9-12 inches <br /> The above amounts could vary by 10 % plus or minus. <br /> This mound must be pressurized therefore a pump tank and a <br /> Pump must be installed. <br /> Size of pump tank-1000 gallon sealed tank <br /> Size of pump-31 g.p.m. (must overcome at least 22.6 ft. of head <br /> Pressure. ) <br /> Pumping Rate----218 gal/cycle (4 cycles/day) <br /> An alarm system must be installed in the building to indicate pump <br /> failure this must be both a sound and a light alarm. <br /> This site must be roped off to prevent compaction of the soil which <br /> could ruin the site. <br /> Site Evaluator <br />