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5.6 Calculate impact of nitrogen loading from site project to down gradient wells, rivers <br /> and lakes, etc. The project would not have a significant impact on the downgradient wells, rivers <br /> and lakes as the proposed nitrates are moderate <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 /> 7.0 CONCLUSION AND RECOMMENDATIONS SECTION <br /> The conclusions of this report are based on the information provided regarding the proposed <br /> development, the use of the subject property, and the site conditions as they existed at the time <br /> we excavated our test holes and performed the percolation tests. It was assumed that the test <br /> holes and percolation tests and the compiled data results are representative of the subsurface <br /> conditions in the general area. The site would comply with the San Joaquin County requirement <br /> by having a project site with less than 10.0 mg/L-N. The values used for calculations assume that <br /> the nitrate concentration of rainfall is 1 mg/L-N as previously noted (Hantzsche/Finnermore). <br /> Also, the site contains denitrification processes and that based on uses the site effluent stream is <br /> 45 mg/L-N. Analyzing all the compiled data, the site is adequate for the proposed use. <br /> 7.1 APPENDIX <br /> Attachments are all included at the end of this report as part of the Appendix. <br /> 4 <br />