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F. WASTEWATER FLOW CALCULATIONS AND CHARACTERISTICS <br /> To accurately determine nitrate-nitrogen loading from the project as a whole,wastewater flows <br /> must be determined as accurately as possible. These wastewater flow determinations are based <br /> on current and long-term growth projections. The following information describes flow <br /> projections: <br /> It is assumed there is little or no cooking within the breakrooms or offices in each of the <br /> businesses. There should be no use of a garbage disposal and all food should be thrown away <br /> and not put down the drain. This will prevent heavy organic loading, although breakroom sink <br /> wastewater may consist of juices or other similar type liquids to the septic system. The <br /> characteristics of the wastewater flow will be predominately blackwater, with a comparatively <br /> small volume of sink water and no graywater from the washing of clothes, bathing, etc. <br /> G. CALCULATED IMPACT FROM NITRATE-NITROGEN LOADING <br /> From the anticipated wastewater characteristics described,the nitrogen emanating from the entire <br /> project may be at a slightly higher concentration than what would normally be found in a typical <br /> domestic or household system. This can be attributed to the lack of a dilution effect which <br /> graywater would provide. The scientific literature cites nitrogen concentrations in septic effluent <br /> (residential)typically ranging from 17 mg Nitrogen/Liter(N/L)for basins, sinks, etc. to 140 mg <br /> N/L for toilet wastes. Therefore, considering a 70/30 percent usage for toilet water volume and <br /> sink water volume, respectively, a value of 103 mg N/L of septic effluent will be used to <br /> calculate nitrate-nitrogen loading for this project. The loading projections are based upon the <br /> following populations for each business within the entire project: <br /> LAWSON TRUCKING <br /> 25 trucks, 25 drivers+4 office staff= 29 people <br /> DEVINE INTERMODAL <br /> 15 trucks, 15 employees + 1 office staff= 16 people <br /> VALLEY INTERMODAL <br /> 9 trucks, 9 drivers+ 6 office staff= 15 people <br /> BENETO TANK LINES <br /> 3 trucks, 6 drivers +2 office staff= 8 people <br /> NESTLE'S <br /> 4 trucks, 4 drivers + 5 employees=9 people <br /> KENWORTH TRUCK SALES/REPAIR <br /> 17 mechanics, 6 office staff = 23 people <br /> TOTAL= 100 people <br /> 5 <br /> Vaffey Ag Pfsearch <br />