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! <br /> � �L P P E N D I X <br /> � FIELD EXPLORATIONS AND LABORATORY TESTING <br /> t FIF.LD EXPLORATIONS <br /> IThe subsurface condi[ions a� the project site vere explored by d:illing <br /> � 4 borings and excavating 25 cest pits at the locations chown on Plate 1. In <br /> addition, hand probing was performed at several location:z across the site to <br /> better define the limits of localized bog areas. <br /> IThe 4 borings were drilled on Sep[ember 19 and October 12, 1983 to dep[hs <br /> ranging from 21 to 29 feet below er.istt��g grade. The 6orings crere auvanced <br /> Iusing a truck-moun[ed, con[inuous-flight, hollow-stem auger drill. Represen- <br /> tative samples were obtained of each soil type encountered usLng a 3-inch- <br /> I outside-diame[er split-barrel sampler. The sampler was driven into the soil <br /> a distance of 18 inches using a 325-pound hammer free-[alling 30 inches. The <br /> I number of blows required [o drive the sampler the last t2 inches is recorded <br /> on the boring logs. <br /> The 25 test pits were excavated on September l4 and 15, 1983 using a <br /> 1 rubber-tired backhoe. Represent.i[ive bag samples were ob[ained of e;�ch soil <br /> [ype encoun[ered. <br /> i The borings and test p'_[s crere con[inuously ].ogged by a getitechnical <br /> englneer from our firm. Soils �.�ere classifLed in accordance with the Unified <br /> Soil Classification Sys[em des�:ribed on I'la[e A-1. <br /> � The loga of the borings are presented on Plates A-2 thraugh A-5. The <br /> logs of the test pits are presented on Plates A-6 through A-21. Ground ;ur- <br /> face elevations at the exploration locations were established by interpolalion <br /> froc� a topographic survey prepared by Bush, Roed 6 Hi[chings, Inc. , dated <br /> \ovember 1983. ihe explora[ion logs are based on our in[erpre[ation of [he <br /> field and laboratory �ata and indicate the various types of soils encountered. <br /> They also indica[e the depths at which these soils or their characteris[ics <br /> change, although the change ciay actually be gradual. If [he change occurred <br /> between samples, it mas interpre[ed. <br /> Observatiuns of ground •.ater conditions were made as the explorations <br /> were performed. In additioo, piezometers were ins[alled in Borings 1 through <br /> 3 to monitor ground va[er levels following drilling. These piezome[ers con- <br /> sisted of one-tu�lf-inch-diar.,zcer PVC pipe placed in the bo[ings and extending <br /> I� <br /> A - I <br /> , CseoEngineer� <br /> Incorpowted <br />