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Honorable Chairman and <br />Board of County Commissioners <br />9/16/91 <br />Page 12 <br />working face of the Class I cell. This is a disposal method accepted by <br />FDER. <br />PROJECTED WASTE QUANTITIES <br />SLUDGE <br />The Wastewater Master Plan developed projections of average day and maximum <br />month sludge quantities for County -owned facilities. Those quantities were <br />based on a solids concentration of 0.75 percent. Since that time, actual <br />experience has indicated that the solids concentration is approximately 1.0 <br />percent. which will enable the hydraulic capacity to be slightly reduced. <br />Table 2 presents projected average daily sludge quantities based on the <br />five-year increments and a 1.0 percent solids concentration. These projected <br />quantities include only sludge from County -owned facilities. <br />SEPTAGE <br />The Wastewater Master Plan projected septage quantities in five-year <br />increments from 1985 through the year 2005. Table 2 also provides <br />projections of the annual volume of septage based on that source using <br />straight line interpolation. <br />The annual number of active septic tanks throughout the County is also <br />projected in Table 2 using assumptions developed during the master planning <br />process. An average septic tank volume of 1,000 gallons in conjunction with <br />an average pumpout frequency of four years is applied to the projected <br />septage quantities to project the annual number of septic tanks. <br />M.VRB2/5 <br />