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Dykxhoorn Page 8 of 9 <br /> Project Number: E07024B <br /> Date: October 31, 2007 <br /> Septic System Construction should follow the San Joaquin County On-Site Wastewater Disposal / <br /> Standards where applicable. l <br /> 7.0 CONCLUSIONS <br /> In summary, percolation rates that meet the minimum EHD standards were achieved in the <br /> proposed septic disposal areas of each of the proposed parcels. The parcels appear suitable for <br /> the use of a standard septic system. <br /> No ground water was encountered in any of the borings drilled on the property. The depth to <br /> ground water is estimated to be between 30 and 40 feet below the ground surface based on <br /> county ground water maps. The on-site water well was tested for nitrate and DBCP. DBCP was <br /> non-detectable, and nitrate concentration in ground water was found to be 28 mg/L-NO3, which <br /> is below the maximum contaminant drinking 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 <br /> at the time we excavated our test holes and performed the percolation tests. It was assumed <br /> that the test holes and percolation test results are representative of the subsurface conditions in <br /> the general area. <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 <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 /> 4 <br /> V 902 Industrial Way•Lodi,CA 95240•209.367.3701 •Fax 209.369.4228 ®2007 Nei!O.Anderson&Associates.Inc <br />