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<br />Orangc County Trigon Project No 036-00-0161) <br />Hillsborough Landfill Site ,__- July 19, ZOOD <br />2) A deep foundation system of drilled piers penetrating the underlying natural soils and <br />partially weathered rock. - <br />3) A foundation system of GeopiersOO a stone columns extending into the underlying <br />natural soils and partially weathered rock. <br />Pavements and Athletic Fields <br />One possible improvement of the site is reportedly the construction of athletic fields and other <br />similar recreational facilities. Ball fields and soccer fields are not expected to be severely <br />impacted by settlement of the existing FILL soils, however, some future maintenance, including <br />regrading of the surface, can expected. Similarly, basketball and tennis courts could also be <br />supported by the existing FILL soil without experiencing major failures. However, it is quite <br />possible that the courts could experience some distress to the point that the pavement could crack <br />and the surface could become uneven. <br />The soils encountered at the boring locations should provide adequate support for pavements, <br />However, the subgrade tivill need to be prepared to support the pavement section including <br />placement of a compacted structural fill and possibly the use of geosynthetic reinforced earth <br />fills. <br />5.0 CLOSURE AND LIMITATIONS <br />Regardless of the thoroughness of the geoteclurical exploration, there is always a possibility that <br />substuface conditions will be different from those at the boring locations, that conditions will not be <br />as anticipated by the designers, or that the construction process will alter soil conditions. Therefore, <br />qualified geotechnical personnel should observe the prepazation, earthwork, and shallow foundation <br />consWction to confirm that the conditions anticipated in the design actually exist. <br />TRIGON ENGINEEIUNG CGNSULTi1NTS, ING Page 7 <br />