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SECTION 3 <br /> RESULTS OF RECENT SOIL AND <br /> GROUNDWATER SAMPLING <br /> This section presents field observations and laboratory analytical <br /> results of soil and groundwater sampling conducted at the Manna <br />' Pro Facility during November and December 1990. During the period <br /> November 8 through 15, 1990, nine soil borings (MP-1 through MP-9) <br /> were installed Three of these borings were converted to 4-1nch <br />' monitoring wells These wells were constructed to assess <br /> groundwater contamination and the direction and gradient of <br /> groundwater flow During the period December 1 through 7, 1990, 16 <br />' additional soil bo ings f heselbonngs,rough MP-25) were MP-14, MP 15, and MP- d <br /> and <br /> sampled. Three o 118 were <br /> converted to monitoring wells. <br /> 1 <br /> Yeoloint <br /> Data gathered during th�r�ss sectionsallation of the that 2lustrat the 1 thology <br /> 5 soil borings has been <br /> used to construct two <br /> beneath the site The locations of the cross-sections are shown on <br />' Figure 1-2. The cross-sections are shown in Figures 3-1 and 3-2 <br /> Typically, these borings The typtered sequences of ical geologic sequence encounteand red s <br />' to a <br /> total depth of 60 YP <br /> shown below <br /> D_exLh_M Desc nti of formation <br /> 0-25 clay <br />' 25-35 coarse sand <br /> 35-45 fine sand grading to sandy clay <br />' 45-50 clay with intermittent sand lenses <br /> 50-60 clay <br /> 1 <br /> No significant unconfined groundwater was encountered in any of <br /> the borings First water was encountered at depths of between 43 and <br /> 48 feet below grade Water levels quickly rose to between 39 and 40 <br />' 3-1 <br />