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i <br /> t_ <br /> June 12,2006 <br /> NOA Project Number: E06061A <br /> L 4.0 DISCUSSION OF NITRATE LOADING RESULTS <br /> /4.1 Total Nitrate Impact <br /> v According to the Hantzsche and Fennemore equation and approach there is a potential for a <br /> buildup of nitrates in the ground water to 1.5 mg/L-N over the long term; this concentration is <br /> Lbelow the safe drinking water standard. <br /> /4.2 Methods of Mitigation <br /> ba Because the proposed use should not cause a buildup of nitrates in the groundwater above the safe <br /> drinking water standard,no mitigation measures are warranted. <br /> V <br /> /5.0 CONCLUSIONS AND RECOMMENDATIONS <br /> L Our office concludes that the Site is suitable for development with a standard septic system. All <br /> septic system construction should follow the San Joaquin County On-Site Wastewater Disposal <br /> L !Standards where applicable. <br /> .1 Signatures <br /> L ✓✓✓15The signatures of the environmental professionals involved in the preparation of this report can be <br /> found on the cover sheet at the front of this package. <br /> i" .2 Attachments <br /> All required attachments and appendices can be found at the rear of this package. <br /> L <br /> L /6.0 LIMITATIONS <br /> Our professional services were performed,our findings obtained,and our conclusions proposed in <br /> L accordance with generally accepted engineering principles and practices. This warranty is in lieu of <br /> all other warranties either expressed or implied. Test findings and statements of professional <br /> opinion do not constitute a guarantee or warranty, expressed or implied. <br /> L <br /> L <br /> L <br /> L '-.44 <br /> L <br />