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August 27 , 1980 <br /> Project No. 4080 <br /> Page four <br /> wall , which is at least 12 inches thick and extends three-fourths <br /> height of the wall. Additionally, the proposed pool area should <br /> . be adequately drained using conventional systems , so that increased <br /> pore pressures do not build up under the pool and create distress. <br /> Artificial fill which occurs along the slope areas should be re- <br /> moved ar,d wasted from the site area. The majority of the fill <br /> is expected to be removed during site development ; however, any <br /> that remains should be disposed of, and th� slope stabilized through <br /> revegetation and/or landscaping. We s�4ggest that landscaping <br /> for stabilization of the slope be performed, and consist of light <br /> wei.ght material such as railroa.d ties . Rockeries should be minimized <br /> unl�ss well founded into the basal soils , and slopes are stable. <br /> Additional filling within the downslope portion of the site should <br /> be performed only if engineered and adequately retained. <br /> Special Notes <br /> Drainage control and surface runoff should not allow Nater to fiow <br /> � downslope, unless within a controlled system.which directs all <br /> waters off site without surface erosion. <br /> We suggest the soils consultant observe excavations prior• to <br /> footing concrete placement, so that proper footing depth and <br /> adequate foundation soils are insured. <br /> Thank you for the opportunity to be of servic:e. If you have any <br /> questions , feel free to call on us at ar�y time. <br /> Sincer y , <br /> Davi L. Nels �ciates , Inc. <br /> //-�" , ,/i <br /> ,�`��`j��'L�� � � <br /> David L. Nelson P.EG. � <br />