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1 <br /> 111 June 6,2008 <br /> Serenity Meadows <br /> L&A Job No. 8A01 7 <br /> Page 6 <br /> GROUNDWATER CONDITION <br /> 1 Groundwater seepage was encountered only in the two test pits(Test Pits 3 and 4)adjacent to the <br /> wetland buffer zone at the west end of the to-be-developed area of the site. The groundwater <br /> rseepage was encountered in the layer of weathered soils or the underlying fresh advance outwash <br /> deposit at about 2.7 feet below existing ground surface. The influx rate of groundwater seepage <br /> varied from about 1.0 to 2.0 gpm. The depth to this groundwater seepage would fluctuate <br /> seasonally, depending on precipitation, surface runoff, ground vegetation cover, site utili7Ation, <br /> and other factors. The perched groundwater may dry up completely during the dryer summer <br /> months and accumulate and rise in the wet winter months. <br /> DISCUSSIONS AND RECOMMENDATIONS <br /> GENERAL <br /> IBased on the soil and groundwater conditions encountered by the test pits excavated on the site, <br /> it is our opinion that the site is suitable for the proposed development from the geotechnical <br /> Iengineering viewpoint, provided that the recommendations in this report are fully implemented <br /> and observed during construction. Groundwater level and moisture content in the surficial soils <br /> in the low-lying area adjacent to the wetland buffer zone would be higher during the wet winter <br /> months. To avoid possible weather related complications, we recommend grading and <br /> foundation construction work for the proposed development of the site be scheduled and <br /> completed during the dryer period from April 1 through October 31 of the year. If such work has <br /> to proceed beyond the above dryer period, the recommendations for grading, site stabilization, <br /> erosion mitigation, surface and ground water drainage control in this report should be in place <br /> and operational on a daily basis during construction. <br /> ' Buildings and roadways built on inconsistently compacted fill, varying from loose to dense, <br /> underlain by discontinuous relic topsoil with various amount of roots, may result in settlement <br /> LIU & ASSOCIATES, INC. <br />