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The following table summarizes the results of the nitrate loading calculations for each <br /> proposed parcel of the Site, where Nc represents the long-term average concentration <br /> of percolating effluent: <br /> Table 3. Results of Nitrate Loading Calculations <br /> Parcel Nc (no development) Nc (hypothetical future homes) <br /> 1 0.3 mg/L-N 0.6 mg/L-N <br /> 2 0.3 mg/L-N 0.6 mg/L-N <br /> 3 0.3 mg/L-N 0.6 mg/L-N <br /> 4 0.3 mg/L-N 0.6 mg/L-N <br /> 5 0.3 mg/L-N 0.6 mg/L-N <br /> 6 0.3 mg/L-N 0.6 mg/L-N <br /> 7 0.3 mg/L-N 0.6 mg/L-N <br /> 8 0.3 mg/L-N 0.5 mg/L-N <br /> Based on the method and assumptions described, maintaining zero development on <br /> each parcel would result in a buildup of nitrates in the aquifer up to 0.3 mg/L-N, <br /> equivalent to the measured rainwater concentration. <br /> Were two houses to be placed on each parcel, the maximum buildup of nitrates in the <br /> aquifer from the use of septic systems on the Site is predicted to be 0.5 mg/L-N for <br /> Parcel 8 and 0.6 mg/L-N for all other parcels. This calculation assumes future houses <br /> which are not planned for the Site. <br /> The US EPA recommended MCL for nitrate in drinking water is 10 mg/L-N. In all the <br /> scenarios, the results of the nitrate loading calculation are well below maximum drinking <br /> water standard. <br /> Discussion of Nitrate Loading Results <br /> Total Nitrate Impact <br /> Based on the method and assumptions described, the results of the nitrate loading <br /> estimates indicate that impact to the ground water from no development or from the <br /> placement of two houses with up to eight bedrooms total on each parcel would be well <br /> below 10 mg/L-N. <br /> LOGE 20-29 Page 14 <br />