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� <br />Intracorp <br />July 16, 1998 <br />� <br />E-3532-620 <br />Page 3 <br />The fill was placed over a deposit of maderately compressible silt and clay. In order to <br />evaivate the settlement induced by the fill, settlement monitors were placed prior to fill <br />placement and �ronitored on a periodic basis. A graph of our settlement monitor <br />measurements are included as the attached Plates 3 through 6. The amount of settlement <br />induced by the weight of the fili ranged from just under one to slightly mare than two and <br />one-half feet. At this time, in our opinion the settlement is completed and buildinp <br />constructian may commence. <br />, �.,: : <br />There are no indications of groundwater seepage at the site. As site grades were raised <br />thirty (30) to forty (40) feet, we wouid not anticipate groundwater wiil result in major <br />construction related issues. However, the contractor should be made aware that <br />groundwater conditions can change. Perched groundwater may collect in the fill used to <br />raise site grades. Seepage may fluctuate depending on the season, amount of rainfall, <br />surface water runoff, and other factors. Generally, the water level is higher and seepage <br />rate is greater in the wetter winter months ltYpically October through May1. <br />• • •.� ; •uu .�_l�. <br />General � <br />8ased on the results of our study, it is our opinion the site can be developed generally as <br />planned. In our opinion, building support can be provided using conventional spread and <br />continuous footing foundation systems supported on the structural fill used to raise site <br />grades. Slab-on-grade floors may be similarly supported. <br />As part of our study, we conducted a reconnaissance of the west slope. We observed <br />some indications of past instability, including debris 'flow scarps and chutes and <br />indications of downslope creep in the vegetation. However, none of these features <br />appears to be recent or active. <br />This report has been prepared for speci`,ic application to this project only and in a manner <br />consistent with that level of care and skill ordinarily exercised by other members of the <br />profession currently practicing under similar conditions in this area for the exclusive use <br />of Intracorp and their representatives. No warranty, expressed or implied, is made. This <br />report, in its entirety, should be included in the project contract documents for the <br />information of. the contractor. <br />Erth Con�ultr�t�, Inc. <br />