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The site will experience a process of denitrification as the soil naturally treats surface material <br /> through natural forms. Denitrification is a process that occurs when bacteria uses oxygen in the <br /> nitrate (NO3) and release nitrogen (Nz) into the atmosphere. Denitrification can be variable to <br /> the type of soils, chemical properties, moisture content and other variables. Based on the <br /> loam and sandy loam soils on-site and moderate percolation rates, this site's soil has levels of <br /> denitrification. It is expected that a site with soil of these characteristics shall have <br /> approximately about 10-20% of denitrification. The value used for this site was 15%. <br /> 5.5 Calculate mass balance of nitrogen loading considering all potential sources identified <br /> using Hantzsche/Finnemore equation: Using the data mentioned within this report and the <br /> attached Soil Suitability Report the mass balance of nitrogen loading for this site was calculated, <br /> this was done using Hantzsche/Finnemore formula. Based on the Hantzsche/Finnimore <br /> equation Parcel 1 would be a 40 acre site, produce 350 gal/day of waste, and contain a Nitrate <br /> Load of 1.58 mg/L-N. Parcel 2 would be a 40 acre site, produce 350 gal/day of waste and contain <br /> a Nitrate Load of 1.58 mg/L-N. Parcel 3 would be a 40 acre site, produce 300 gal/day of waste, <br /> and contain a Nitrate Load of 1.49 mg/L-N. The Homesite Parcel would be a 3.2 acre site and <br /> produce 450 gal/day of waste, and contain a Nitrate Load of 8.5 mg/L-N. The 1�gal/day flow <br /> would avoid the sites nitrate load from surpassing the maximum containment level (MCL) of <br /> 10.0 mg/L-N for Nitrate drinking water. <br /> 5.6 Calculate impact of nitrogen loading from site project to down gradient wells, rivers <br /> and lakes, etc. The project should not have a significant impact on the down gradient wells, <br /> rivers and lakes as the proposed nitrates are low with the exception of the Homesite Parcel which <br /> has moderate levels of nitrate loading. <br /> 6.0 Discussion of nitrate loading results relative to proposed method of <br /> wastewater disposal <br /> 6.1 Discussion of total nitrate impact from proposed project: There are low possibilities that <br /> the percolating effluent could affect water conditions if nitrates are not reduced. The <br /> Hantzsche/Finnemore equation has an added to the factor of safety, which is not accounted for, <br /> as it does not include lateral disbursement in its calculations diminishing those risks. No <br /> additions should be made beyond the proposed improvements mentioned previously without an <br /> update to this report. <br /> 6.2 Description of the methods proposed to mitigate any known or future impact to soil and <br /> groundwater from nitrate and/or other constituents of concern, at and/or around the <br /> project site: The project, as described in this report, is sustainable by the site in current <br /> conditions. Additions or modifications to the site may require the addition of a wastewater <br /> treatment system. At the time an addition is proposed, this report should be updated to ensure the <br /> adequate improvements are made. <br /> 4 <br />