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6.7 Discussion of any potential problems predicted and/or the need for an engineered or <br /> alternative septic system. In this area,the soils are classified as Archerdale Clay Loam, <br /> Cogna Loam and Hollenback Silty Clay. Due to this classification and percolation rate,a standard <br /> septic system similar to the one found on the other homesites would be recommended on the <br /> proposed parcels. <br /> 6.8 Discussion of percolation rates in relation to the type, size and location of future leach <br /> fields needed at the site. Based on the results of the percolation rate and the soils profile, it is <br /> Dillon&Murphy's opinion that the subject proposed parcels are suited for a typical on-site sewage <br /> disposal system. The systems should be properly designed and installed according to the current <br /> San Joaquin County criteria for standard septic systems. <br /> Based on the depth to groundwater in the area,and the size of the proposed parcels,it is our opinion <br /> on that the installation of any new proposed septic system, if property installed, should not <br /> adversely affect the quality of groundwater in the area. <br /> 7.0 CONCLUSION SECTION <br /> The conclusions of this report are based on the information provided regarding the proposed <br /> development,the use of the subject property, and the site conditions as they existed at the time we <br /> excavated our test holes and performed the percolation tests. It was assumed that the test holes <br /> and percolation test results are representative of the subsurface conditions in the general area. <br /> Our services were performed, our findings obtained, and our conclusions proposed in accordance <br /> with generally accepted engineering principles and practices. The warranty is in lieu of all other <br /> warranties either expressed or implied. Test findings and statements of professional opinion do <br /> not constitute a guarantee or warranty, expressed or implied. <br /> r. 4 <br /> 11 <br /> J <br /> 77 <br /> . � G1 <br /> i <br /> l�TF OF C <br />