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III. NITRATE LOADING STUDY RESULTS <br /> A. WASTEWATER FLOW CALCULATIONS AND CHARACTERISTICS <br /> To adequately determine nitrogen loading from the conventional leachfield, wastewater flows <br /> must be determined as accurately as possible. These wastewater flow determinations are based <br /> on information conveyed by Mr. Paul Bagha and are based on current and particularly long-term <br /> growth projections. It is our understanding the population of the Temple will not increase <br /> beyond 250 people, maximum. According to Mr. Bagha, when the Temple reaches a population <br /> of 200 to 250 people during Sunday services, a new Temple will be built at another location. <br /> The following calculations demonstrate flow projections: <br /> The Priest's residence maintains a conventional septic system with both blackwater and <br /> graywater flows. It is assumed the characteristics of the wastewater flow from the Temple will <br /> be predominately blackwater, with a comparatively small volume of sink water and no graywater <br /> from the washing of clothes,bathing, etc. If there is to be cooking within the Temple, or any <br /> wastewater flows from food preparation, it is imperative that no food particles enter the septic <br /> system. There should be no use of a garbage grinder or "disposal" to prevent heavy organic <br /> loading. <br /> B. 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 higher concentration than what would normally be found in a typical <br /> domestic or household system. This is due to the fact that the Temple will contribute a much <br /> higher concentration of blackwater in comparison to graywater. The scientific literature cites <br /> nitrogen concentrations in septic effluent typically ranging from 17 mg N/L (nitrogen/liter) for <br /> basins, sinks, etc. to 140 mg N/L for toilet wastes. Therefore, a nitrogen loading value of 62 mg <br /> N/L will be used for the Priest's residence and a value of 100 mg N/L will be used for the <br /> Temple. <br /> PRIEST'S RESIDENCE <br /> 6 people X 45 gals/person/day=270 gals/day X 3.79 L/gal = 1023 L/day X 62 mg N/L = 63 <br /> grams N/day X 365 days/yr=23 kg N/yr X 2.2 lb/kg= 51 lbs N/yr <br /> TEMPLE FACILITY <br /> 250 people X 10 gals/person/Sunday=2,500 gals/Sunday_7 day/wk= 357 gals ADF (Average <br /> Daily Flow). 2,500 gals/Sunday X 3.79 L/gal = 9,475 L/Sunday X 100 mg N/L=948 grams <br /> N/Sunday X 52 Sundays/yr=49 kg N/yr X 2.21b/kg = 108 lbs N/yr <br /> When an areal contribution is considered, a concentration of 16 lbs of nitrate-nitrogen is <br /> projected: 159 (108 + 51) lbs N/yr- 10 ac = 16 lbs NO3-N/Ac/yr(assuming complete conversion <br /> of nitrogen to nitrate). <br /> 4 <br /> Vaffey Ag Ppearch <br />