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February 2,2006 <br /> NOA Project Number: E05058B <br /> Table 2. <br /> Summary of Nitrate Mass Balance Analysis. <br /> Plate Result Acres Average Daily Effluent Leachfield Deep <br /> (Nc) * (A) Flow(Q) Concen- Denitrifi- Percolation of <br /> (mg/L-N) (Table 3) tration(Nw) cation(d) Rainfall(R) <br /> (gpd) (mg/L-N) (Plate 9) (in.) <br /> 10 3. 58.3 490 45 25% 1.27 <br /> 11 4.1 49.07 490 45 25% 1.27 <br /> 12 3.8 55.06 490 45 25% 1.27 <br /> 13 3.4 67.07 490 45 25% 1.27 <br /> 14 4.5 43.43 490 45 25% 1.27 <br /> 15 5.0 37.64 490 45 25% 1.27 <br /> 16 4.8 39.58 490 45 25% 1.27 <br /> * Maximum contaminant level(MCL) for nitrate in drinking water is 10 mg/UN. <br /> 3.6 Impact of Nitrate Loading to Nearby Water Sources <br /> Based on the method and assumptions desc ' on to the geologic setting,we do not <br /> believe proposed will caus a build up of nttrat the ground water above 1 mg UN <br /> os <br /> over the long term. <br /> Since the Site is relatively flat,we do not foresee percolating effluent affecting any surface water <br /> resources. <br /> 4.0 DISCUSSION OF NITRATE LOADING RESULTS <br /> 4.1 Total Nitrate Impact <br /> Based on the method and assumptions described,the result of the nitrate loading balance indicates <br /> that the proposed development on the proposed parcels may should-not cause a build up of nitrate <br /> in the ground water abovl0_mom/I� i over the long term. <br /> 4.2 Methods of Mitigation <br /> Because of the favorable result of the nitrate loading calculation,no mitigation measures are <br /> warranted. <br /> 6 .,44 <br />