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August 1, 2005 <br /> NOA Project Number:E05067A <br /> Page 2 <br /> during the 4-hour test period. Measurements were made every 30 minutes for a four(4) hour <br /> period. The pre-saturation of the test hole was performed on July 31, 2005. The percolation test <br /> was performed on Monday August 1, 2005. <br /> Table 1. <br /> Summa of the Percolation Test <br /> m:7- Fail <br /> Date Boring Depth Duration * Result <br /> 7-29-05 23.25 feet 4 hours 125 min/inch <br /> 'Acceptable percolation rate is less than or equal to 60 min/in during the last measurement for a shallow test between <br /> 3 and 3.5 feet. Acceptable percolation rate is less than or equal to 30min/in during the last measurement for a deep <br /> test between 3.5 and 25 feet. <br /> The deep percolation test hole did not achieve a satisfactory percolation rate and does not meet <br /> .� the requirements established by the San Joaquin County, Public Health Services, Environmental <br /> Health Division. <br /> �- The next step would be to contact Dillon and Murphy Engineers to discuss other options which <br /> may satisfy EHD requirements for your project. <br /> Our professional services were performed, our findings obtained,and our recommendations <br /> proposed in accordance with generally accepted engineering principles and practices. This <br /> warranty is in lieu of all other warranties either expressed or implied. Test findings and <br /> ` statements of professional opinion do not constitute a guarantee or warranty, expressed or <br /> implied. The invoice with be mailed promptly. If you have any questions,please do not hesitate <br /> ` to call. <br /> Best Regards, <br /> NEIL O. ANDERSON & ASSOCIATES, INC. <br /> � <br /> Nanby Rosulek, A, Project Manager _ j j ' VV� <br /> 1�^' CIPNc; �T,1 <br /> ` 1u CERNFIEL <br /> tNGINEERIN Y ''I <br /> V<J) ,En+_CGST <br /> rd elch, M.Sc., Senior Geologist n� <br /> CEG-2151, CHG-653 `r CF_•_`_= <br />