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The results for the deep percolation at the site were 10.36 in./year. The nitrate concentration is estimated to be about 1 mg/L-N. (Hantzche and Finnemore, 1992). 5.3 Description of all current on-site sources of nitrate to soil and groundwater and the contribution of nitrate load from these sources to the project site: The only source of nitrates are the existing septic system in use by an existing parcel for residential uses and agriculture use. The existing septic system was considered for when determining the approximate nitrate concentration, the site could expect with the proposed development. 5.4 Discussion of all proposed future on-site sources of nitrate to soil and groundwater and the contribution of nitrate load from these sources to the project site: The proposed use for this site are two home site and a horse training facility. Given a three-bedroom home, it is expected they will generate 100 gals/day for the first room and 50 gals/day for every subsequent room. Assuming two, three bedroom houses, that would generate a total of 400 gal/day. An additional Horse Facility, with two restrooms, which would total 550. This project site can sustain that maximum as shown on the included calculations. The average total nitrogen concentration of domestic wastewater is about 20-85 mg/L-N, although 35-45 mg/L-N is a better approximation (Crites and Tchnobanglous). The value selected for this site was 45 mg/L-N. The site will experience a process of denitrification as the soil naturally treats surface material through natural forms. Denitrification is a process that occurs when bacteria uses oxygen in the nitrate (NO3) and release nitrogen (N2) into the atmosphere. Denitrification can be variable to the type of soils, chemical properties, moisture content and other variables. Based on the sandy loams on site and the high percolation rates, this site's soil has low levels of denitrification. It is expected that a site with soil of these characteristics shall have approximately about 10-15% of denitrification. The value used for this site was 15%. 5.5 Calculate mass balance of nitrogen loading considering all potential sources identified using Hanztch/Finnemore equation: Using the data mentioned within this report and the attached Soil Suitability Report the mass balance of nitrogen loading for this site was calculated, this was done using Hanztch/Finnemore formula. Based on the Hanztch/Finnemore equation this 161.72 acre site would contain a Nitrate Load (Nc) of 1.16 mg/L-N. The site can handle approximately 40,000 gal/day, a flow surpassing that amount could cause an impact to the site's nitrate load and surpass the maximum contaminant level (MCL) of 10.0 mg/L-N for Nitrate in drinking water. 6.0 Discussion of nitrate loading results relative to proposed method of wastewater disposal 6.1 Discussion of total nitrate impact from proposed project: There are possibilities that the percolating effluent could affect water conditions. The Hanztch/Finnemore equation has an added to the factor of safety which is not accounted for as it does not include lateral dispursment in its calculations diminishing those risks, but no major additions should be made beyond the proposed improvements mentioned previously without an update to this report.