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TABLE 3 Analysis of Septic Crites and Crites and U.S.E.P.A. ANALYTE System Effluent Tchobanoglous: Tchobanoglous: Averaged From With Effluent Filter Without Effluent Filter Three S.J.C.Houses of Worship WINE Ammonia Nitrogen(NH,-N) 103 mg1L 40 my L 40 mgr L 6-18 mg L Organic Nitrogen 10 mgr L 28 mg/l. 28 mg/L 30-82 mg/L Nitrate BDL BDL BDL BDL Total Nitrogen(TN) 113 mg/L 68 mg/L 68 mg/L 35-100 mg/L Iola]Suspended Solids 72 mg/L _ 80 mg/L 30 mg/L 200-290 mg/L (TSS) Biochemical Oxygen 21 mg/L 180 mg/L 130 mg/L 200-290 mg/L Demand(B V') pH 7.7 - N/A N/A N A Total Alkalinity 983 mg/L 60-120 mg/L 60420 mg/L N A B. CALCULATED NITRATE-NITROGEN LOADING The calculated or estimated nitrate-nitrogen impact to the soil and ultimately to the groundwater is difficult to determine due to the number of variables involved. These variables include 1.)Variability in wastewater flows, nitrogen concentrations and dilution effects that may occur,2.)Impact from previous on-site operations,3.)Upgradient nitrate sources from agricultural farmland,4.)Changes in groundwater directional flow and elevation, 5.)Nitrification and denitrification potential of the underlying soil,and 5.) Rainfall recharge. As noted in Table 3,the Total Nitrogen(TN)content is substantially higher in the tested septic tank effluent than in the published sources. Therefore,as a safety factor,a Total Nitrogen concentration of 113 mg/L will be used in the nitrate loading calculations below. Various scientific methods are used to estimate nitrate- nitrogen loading. This study uses the Hantzsche/Finnemore Formula to predict the average concentration of nitrate-nitrogen in effluent recharge water. PREDICTED NITRATE-NITROGEN LOADING FROM THE COMPLETE EXPANSION OF THE SIKH TEMPLE USING THE MAXIMUM AVERAGE DAILY FLOW(ADF)OF 2,400 GPD BASED ON THE PARAMETERS DESCRIBED,AND TAKING THE ENTIRE PROJECT AREA OF 20 ACRES INTO CONSIDERATION: HANTZSCH&FINNEMORE EQUATION QV„(1 -d)+RN ✓" Nr= (I+R) Where: Nr= Resultant average concentration of nitrate-nitrogen in recharge water-(ppm NO3-1) I = Volume rate of wastewater entering the soil averaged over the gross developed area in inches per yr Nw= Total nitrogen concentration of wastewater in mg N/L 9