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LSI �trinpt <br />SI'l'l CONUPl7U\S <br />'I'he follu���ing sec�ions dcticribc ow obscivalians, mcasmemenis, ;md interpretations couccrnin� surf:ice, <br />soil, �rouud���ater, and seismic condilions �u Ihc pr�jeci site. <br />Surfnee Co�xlilion.+ <br />The subjec� siic is lorucd :it IR71 Russ Avenuc in I;��cren, \Vashinglon. �lore Specificallp, ihc pruposed <br />Icase �rca is localed on Ihe eastern pnriion of Ilie Uaemar bont slorage lacility. Tlie proposed <br />cummunicaiions rot+�er will be placecl approximarely 20•30 feei u�est of an erisiing Ilagpole, �ehile ihe <br />cquipmcnt hwidiug/shel�er will bc placed furlher ���esl The proposed Iease arca c:m bc .+ccessed via tlic <br />gravcl access road localcel on thc Dagm,ir pruperry. The topography of Ihc host parccl is rclaiively Icvcl. <br />'I'hc projcct silc and suiTowiding arc;� are sho�vn on thc attachcd sile vicinily map (L.ocaliou Map, Pigurc <br />I). Thc .umched Site and E�ploruion Plan (Pigurc �) sho�vs Ihe approxi•ns�c locnlion of lhe proposed <br />ccllul.n lo�vcr Icase area in rclalion to olher sitc fcalures. <br />SrrL.eiufncc Cnn�filions <br />On July 31, 2003 a singlc esplorunry icst horing wns drillcd to mnximum depih of npprorimatcly 30-tcc� <br />bcluw ihc c�isiin� grouud surfacc (bgs). Sm•licial conJitiuus consisicd of a gravcl parking .uea (li�r dr)'- <br />stocing 6oats) overinying loose, bro���n, snnd ���ilh grnvcl. The soils cncountcrcd :it 3.5-icct hgs �vere <br />logged as very loosc, moisl, gray, medium lo coarse sand grading to very soR in wet, grny silt with <br />oreanics. This vciy luusc sili m�lcrial continued to ahoul 23.5-Icel hgs. The soils encountered nt 23.i- <br />feet bgs �verr logged as vcry loose, ntoist to datnp, gray silty fine sand grnding �o loose. �vet, gruY <br />mcdium to coarse xand at 2S.5-tec� bgs. Thc ualivc soils encouutcred nt 33.$_fccl bgs ���crc loggcd as <br />medium de»se. �vet, gra�' medium to coarse snnd. 'fhis mediinn det�sc sand cuntinucd to ihe fiill cxploreJ <br />depih, 40-Iccl bgs, of ihe suil boring. <br />(iround�valer was cncounlcrcd al G.0-feet bgx ;u �ime ol'drilliug. 1loa�cver, due �o Ihe extensi��c thickness <br />of livc graincd scdim;its, SIIC COII(IIIIOIIS 81'C COII(ItlCIVC Io lhc dc��clopmcnl �I",perchrd" gruund �vatcr. <br />The ground���ater le��el shoulel be e�;pected to Ilucucile duc to �NCIOPS xuch as scasonal vari;itions in <br />precipitatinn, in ihe nenrbp ri��ers nud sloughs, hiEh ���fller changes in sitc utiliz.��ion, or od�cr f�ctors <br />Scisi�iic Coridirinns <br />Accurding to the Scismic Zone \�1np of the Uuimd Slales contained iu Figure I G-2 of dic 1997 Uni(orm <br />Building Code (UL3C)> �he pr�ject sitc lics ���ilhin Scismic Risk Zone 3. f3ased on our subsurface <br />caploration, tt�c conser��fltivcly inieipt'el Ihe site condilions to con'espond lo �i seismic Soil Prolile lype S�. <br />as defined hy'�nblc IC•] of Ihe 1997 ilniJnnn H��ilding Code. "I'his soil prolile is cicirncterized by cull soil <br />wi(li an a��crage SPT hlo�t�count bclo�v 1S l�loa�s per foot ���id�in dtc upper IOU 1'cc� bgs. Curccr.t (1996) <br />�'eritun W i�cless Augusi J. ?OGJ <br />,ldapt Pmjcct No. 1\'.\0}-971. Fnpc'_ O <br />� <br />