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March 28,2005 <br /> NOA Project Number: E05007B <br /> 6.7 Discussion of Percolation Test Results <br /> The soils within the sewage disposal areas of the proposed Parcels 1, and Designated Remainder <br /> have demonstrated a satisfactory percolation rate in accordance with the requirements of the EHD. <br /> ` The soils of these parcels appear to be suitable for a standard septic system. <br /> 6. 6.8 Discussion of Septic System Sizing <br /> Septic system construction should follow the San Joaquin County On-Site Wastewater Disposal <br /> hm Standards where applicable. <br /> 7.0 CONCLUSIONS <br /> In summary, satisfactory percolation rates of the soil were achieved in the proposed septic disposal <br /> areas of five of the se =&reel§. The proposed Parcels 1 and the Designated Remainder appear <br /> ` suitable or a standard septic system. <br /> No ground water was encountered in any of the borings drilled on the property. The on-site water <br /> well was tested for nitrate and DBCP. DBCP was non-detectable, and nitrate concentration in <br /> ground water was found to be 45.4 mg/L-N031which is above the maximum contaminant drinking <br /> water limit of 45 mg/L-NO3' <br /> 8.0 LIMITATIONS <br /> The conclusions of this report are based on the information provided regarding the existing and <br /> proposed development,the use of the subject property, and the site conditions as they existed at the <br /> time we excavated our test holes and performed the percolation tests. It was assumed that the test <br /> holes and percolation test results are representative of the subsurface conditions in the general area. <br /> Our professional services were performed, our findings obtained,and our conclusions proposed in <br /> 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 /> NEIL O.ANDERSON&ASSOC.,INC. <br /> bu <br /> ,. <br /> Vvv' �,� <br /> 2151 S �, <br /> 6w Rebecca askett,B.S. David J. Welch,M.Sc. <br /> Project Manager CEG-2151,CHG-653, GP-1049 '��� ":';JEERING <br /> Environmental Division Manager <br /> 10 <br /> L <br />