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' � Ocrober 2 %, 1005 <br />(;roarlmir<il F.n};inrcring Rcport Prajecl q2005•196 <br />c'nrnrnur�i�r Hcal�h Cenrcr, F.rcr���L If'A <br />' z.o siTr corvn►T�ons <br />I3.1 Surfacc <br />l hc sitc is a long narrow rectangularshaped parccl of land approximatcly 2.5 acres in sizc. <br />I l�hc sitc is bound to thc wcst by a I3ocing Crcdit Union and a wetland, to thc norlh by an <br />undcvclopcd land, to thc cast by t�eo apartment buildings and parking, to thc south by 112'�' <br />Strcet SW. <br />IThc cxisting sitc is covcred by bushes and trces in the norlh portion. 'Ilu sauth portion of <br />the sitc is gravcl co�'crcd parking• A rockcry is nlong the east pmperty line behind the <br />I adjoining apartmcnts. 'I'hc sitc gcntl�� slopcs dm��n to thc southwest �vith an cic��ation <br />diPfcrcncc of apprcximatcly 10 fect. <br />I 3.2 Soils <br />1'hc suils cncoimtcrcd in thc test pits �rc rclati��cl� consistcnt across thc sitc. 'Ihc soil <br />I prnfilc includes 2 fect of loose silt}� linc SAND ��'ith tracc gravcl ovcr 3 to G fcet of <br />mcdium dense to densc silty SAND ��iUi some gravcl o�'Cflj'lil� 6'IAC11I 11II consisting of <br />ccr� dcnsc silty SAND �vith gravcl. Tcst pit 1 P-8 locatcd at thc south portion of the sitc <br />cncowitcrcd 3 fcet of loosc fill o��cr dcnsc sandy GRAVI:L laycr. Tlic fill consists o1� <br />! h:illast rocks, siltv sand, trcc roots, and garhage dcbris. <br />Qur revie�v of the Geo/n,�ic Afup n� ,�urJiciu/ DeJ705'IL5' 1l1 Ihe .Senrfle 30' ht� �O' <br />I �luaclrnn��lc. fl'nshin,c�rru� by Jamcs C. Yount. ct al. �I`i93) indicatcd that thc nati��c soils <br />�ccrc mappcd as Vash��n till (Q��t). ����c nati�•c soils includc light to d:uk gray, nonsortcd. <br />I n�mstratificd misturc uf cla�, silt, sond and gra��cl up to bouldcr-sizc. Thcsc descriptinns <br />arc �cncrally similar tu thc lindings in our ficld cxpinration. <br />� !�1ure dctailcd dcscri�tions ot� thc subsurf:�cc conditions cncountcrcd �rr prescntcd on th� <br />�i I csl Pit Lags. I igurc� A-' Ihmu�h A-� in �.�r���dis :�. (irain sizc distrihution cuncs ,uc <br />includcd in I�igures :\-> :�nd :\-(�. <br />i.3 Ground��atcr <br />c innmd��atcr sccp:�g� �c:is n�,l rnr��untrrc�l Jurin� �irld cxploratiun w a maximum dcpt;i of <br />I II Icct hclo�ti ground surfacc Ihgs). '1'hc static �ruund���atcr secros to Uc Jccper than thc <br />huUi,m uf thc tcst pit icmiination dcpth. <br />I luctuations in static and perchcd ground���atcr Ic�cls shouid bc expcctcd on a scasonal and <br />aiuival hasis. "I'hc Ic��cls ��ill bc highcst during thc cxtcndcd periods of hca��}' scepaEc in <br />thc ��et ��intcr months. I;:i�rd �,n thc sitc cnndition. @round��'atcr may hc perchcd on dcnsc <br />cl�iciul till in ��'c� ��intcr. If rcrn�'.itiun c�tcnd:; into �lacial till in ��'ct scason. minor <br />:rr��:icc sh��uld hr r����rlccl. <br />1'hc Rilc�� Group, Inc. <br />