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Traylor Shea Precast Page 12 of 14 <br /> Our Project Number: E071WB <br /> November 29, 2007 <br /> r <br /> II.3.6 Impact of Nitrate Loading to Nearby Water Sources <br /> Since the Site is relatively flat, we do not foresee percolating effluent affecting any surface 3 r <br /> water resources. <br /> r. II.4 Discussion of Nitrate Loading Results <br /> II.4.1 Total Nitrate Impact <br /> Based on the method and assumptions described, the result of the nitrate loading balance <br /> indicates that the proposed development on the Site should not cause a build up of nitrates in <br /> the aquifer above 10 mg/L-N. <br /> II.4.2 Methods of Mitigation <br /> r <br /> Because of the favorable result of the nitrate loading calculation, no mitigation measures are (y 2 J <br /> warranted. <br /> III. CONCLUSIONS AND RECOMMENDATIONS <br /> ` In summary, percolation rates that meet the minimum EHD standards were achieved in the <br /> shallow soil of the proposed septic disposal area of the Site. <br /> No ground water was encountered in any of the borings drilled on the property. The depth to <br /> ground water was approximately 45 to 60 feet below the ground surface for the period of Fall <br /> 1998 and Spring 1999 based on County groundwater maps. No groundwater was encountered <br /> during the drilling on the property. No water sample was taken since no wells exist on the <br /> property. <br /> Our office concludes that the Site is suitable for development with the use of a standard septic <br /> system. EHD allows development of septic systems with leach lines and seepage pits in this <br /> area. All septic system construction should follow the San Joaquin County On-Site Wastewater <br /> Disposal Standards where applicable. <br /> _ IV. LIMITATIONS <br /> Our professional services were performed, our findings obtained, and our conclusions proposed <br /> in accordance with generally accepted engineering principles and practices. This warranty is in v) <br /> lieu of all other warranties either expressed or implied. Test findings and statements of <br /> professional opinion do not constitute a guarantee or warranty, expressed or implied. <br /> 902 Industrial Way•Lodi,CA 95240•209.367.3701 •Fax 209.369.4228 02007 Neil O.Anderson&Associates.Inc <br />