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. , . • . �Thomes Jona <br /> JN YIOlO <br /> M�rCh 14, 1Yi0 P�2 <br /> Ths borinps w�n ddNW on Janwry 19, 19�0, wkp � frudc.rtp�M�d, IpAow,.�bm �up� �. <br /> Samples vw� tak�n at 6-foot InbnM� wNh a �hnd�rd P�nMratlon s�mpNr. Thi� �pNt-�Poon <br /> wmpl�r, whfch hu a 2-inch oubid� di�mNK, is dAwn kMo fM soil wNh � 140-pourb hamm�r <br /> falflnp 30 inch��. TM numbe of blow� r�quind to advana 1M wmpl�r� piwn distarx� is an <br /> Indicatlon of th� eofl demity or con�istency. A p�obdx�iql �fpinMr from our ttNf opwrvW y� <br /> d�illinp Proau, lopQ�d th� bst bodnpa� and obtairnd hP�W� +MnPNs of tM soN <br /> encounUrod. The Test Borinp Lops an nhGwd as Pl�ta 7 throuph 9. <br /> Our test pib and bat borinps nvai�d flll deplh� of 3 �nd 11 M�t on lot 11, 4 and 1b iNt on lot <br /> 11, 12 and 17 fest on Lot 12, and und�r 4 hot on Lot 13. Th�flll on IM lob conW�b of �Nphyy <br /> •ilqr to silty sand wMh silt Som� of th� flll contains conart� debrls� orpanic mM�AM, �nd wood <br /> d�bris. Lob 10 and 11 conqin b�tvw�n 3 md 16 fNt of old NII ov�Ayinp loop to m�dium.d�np <br /> sand and �illy sand. Uk�wla, Lot 12 �pp�ars M b� wrtapd wNh about 12 h�t of fip. Und�Myinp <br /> fhs ftll and old topwfl,vw�ncount�r+ed loow, slity, flrn-prNrwd wnd and sqt owrlyk�p d�nse�and <br /> and sik to fh�maximum explond d�pth of 29 Net <br /> Ths flnal lop�npn�ent our IMsrpntatlon� of fh�Mld lop� md labontory bab. Th� �fntlNc�yon <br /> Iines on th. iop• r.pnn.M u,. appro�arr„c. eouna„r.s e.�w..n �ou �ypa n y» .,�or.y� <br /> locatlorn. Th��tual trsntttlon bdwMn soN lyp�s maY b�praduN� �nd wbwKaa conditlons an <br /> vary belwNn �xploratlon locatlont. Th� lopt Provid� +Wd�c wbwrfaa infortn�tlon only �t th� <br /> Ioc�Boni u�t�d. TM nlatlw d�n�i �nd moiKun daatptlom indkabd on 1M bst hoN lopi <br /> an int�rpntivs d�scriptlont bawd on th�condMbns ob��rwd durhp�xcav�tlon. <br /> Ths compectlon of badcflll wu not in th�soop�of our�rvlat. Looa soil witl�'»nfon b�four� <br /> in fhe aroa of th� test pfcs. If this pnanL a probNm, fh� b�ckfill will rnW to b� nmowd an0 <br /> ropl�ced wifh structural tlll dudnp�nstructlon. <br /> Oroundw�br <br /> P�rch�d proundwabr se�pap�wai obsxv�d in T�at Pk 9. Th�t��t hoNs w�n hR op�n for ony <br /> a ahort tlms p�riod. Therofon, ths sNpap� I�vNi on 1M lopi npr�ant fM loc�tlon of ftan�nt <br /> water sespaps and may not fndic�ts tl» �t�tic proundvvabr NvN. It �hould b� notW that <br /> �roundwater Isvels v�ry eeaaonally with rainfall �nd ofhK facton. W�aMidpab tlwt proundwalK <br /> could be faund in more permeable ao(I layero and beMrsen ths ne�r-surfaa, watlHned �otl and <br /> the underlyinp denaer aoil. <br /> CONCLUSIONS AND RECQMMENDATIONS <br /> (i�n�ral <br /> The wnstrucUon of residencea on the /our lota appsare to be Masible hom a �ot�ehnk�l <br /> atandpoint. Howaver, dus to the depth of the exiednp flll on Lots 10, 11, �nd 12, w� noomm�nd <br /> supporting the homes on theae lots on desp foundatlon syabm� that �xtend down to tl» <br /> competent, nadve, silty sand. <br /> Drilled conuete piers or driven pipe piiea are probably the most economial d�ep foundatlon <br /> systems. Due to the wet, looae flli, the caafnp of wm� of 1M ddlNd pi�rs would probably b� <br /> necessary. To prevent aacking and settlement, the Iiviny apace slabs ahould bs sUucxuraily <br /> OEOTECH CONBULTAN'I;RIC <br />