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F <br /> ng can also occur from lawns/landscaping/gardens. It is recommended to adviseasers to use "slow-release" nitrogen fertilizers to reduce nitrate loading from lawns,nally, garbage disposals can increase organic nitrogen loading rates. It will be at thef PHS-EHD as to whether disposals are installed if the project is approved. Filtersoa installed in the last chamber of the new septic tanks. <br /> Contemporary scientific literature suggests that denitrification may be enhanced by placing <br /> proposed leachlines higher in elevation toward the soil surface. This would be advantageous by <br /> keeping the leachlines high above the hardpan layer. Deciduous and evergreen plants may be <br /> planted near the leachfield to uptake ammonium ions and nitrate ions which may form. Caution <br /> must be given to prevent serious root infiltration into the leachlines. These two procedures of <br /> placing leachlines high in elevation and plant life within the leachfield would theoretically <br /> provide a triple nitrate impact mitigation system of denitrification, absorption and <br /> evapotranspiration. <br /> V. LIMITATIONS <br /> The findings, calculations, opinions and conclusions of this report are based upon information <br /> from standard engineering and analytical test procedures, contemporary scientific literature and <br /> agency consultations. Information in this report is deemed reliable by the sources from where it <br /> was obtained. <br /> Our report is based upon current scientific knowledge to assess factors which are extremely <br /> variable and complex within the environment. San Joaquin County Environmental Health <br /> Department Standards have been employed for the purpose of preparing this study. Therefore, <br /> no guarantee or warranty is expressed or implied concerning any aspect of this investigation, or <br /> the prevention of environmental impact. <br /> We appreciate the opportunity to provide this service for you. If you should have any questions <br /> regarding to the information contained within this report,please contact the undersigned. <br /> Respectfully submitted, <br /> VALLEY Ag RESEARCH �� No. 04675 <br /> 4JZ,;k * Expires;Gro.,, o- <br /> 7 <br /> N� <br /> Don Chesney, R.E.A. aE cR� <br /> Registered Environmental Assessor#4675 0" C A L I f <br /> 13 <br /> va&y.Ag Research <br />