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�o, 'lUU1 � �44PM Nr?un fn'�rt�r, Pdc� G09E P , 5 <br /> � Mr. Jeff Cole <br /> � Projcct BABX-02-0672 <br /> November 8,2002 <br /> Page 3 <br /> Groundwater was observed at approxir.�ately 1 to 1 %z feet bclow the gound sur�ace ar HA-1 <br /> Groundwatcr appearcd to bc associatcd with sand scam(s)within thc clay till. <br /> Conclusions/Recommendations <br /> The results�f our hand auger borings identi�ed approximately G to 12 inch�s of topsoiI overlyint lean <br /> clay and sandy lcan clay glacial till al�ng the north foating line. 'The south and west footing lines wexe <br /> cxcavated to expose the glacial till soi]. 1he topsoil observcd in the base of the north footing line <br /> excavation was not suitab�e for support of the proposed additio». We recommend that the topsoil be <br /> removed to a depth to ex�ose th�underiying giaciai till soil. <br /> Hand penetrometer readings taken beneath the existing footings and in the glacial till soils recovered from <br /> the hand au�er borings ranged from approximatcly 1 %z tsf to greatcr than 3 tsf. <br /> Based on these results,the glacial til]soijs identified at the site was jLdged suitable for support of[he <br /> proposed addition. <br /> Groundwater observed in hand auger boring HA-1 appears to be associatcd vvith sand seams within the <br /> clay till. The groundwater observed is not anticipated to adversely affect construc`ion of the proposed <br /> addition. <br /> The unexcavated areas beriveen the�'ooting Iizaes showed!ayer(s)of topsoil and roots. We t:nder�tand <br /> floor slabs and/ar garage slabs wi11 be constrvcted over these areas. It is recominended lha�the topsoiJ <br /> and roots be removed and replaced within 4 to 6 inches of tlie bottom of the slabs. It is recommended that <br /> 4 to 6 inches of granular rnaterial containing less than 10 percent gassing the number 200 qieve be p?aced <br /> beneath the floor slabs end/or garagc slabs. <br /> Construction for th�proposed add:tioz is progressin�into the wintez months. We recommeud nsing good <br /> winier construction procedures, Exposcd soil at footing depth should be protected from freezing, <br /> Concrete should not be plaeed on frozen soil and frozen soil shouid:iot be placed as fill or backfill <br />