2215 MERRILL CREEK PKY NEXTEL ANTENNA 2018-01-01 MF Import

LSI Adapt, Inc. Thc boring�vas complcted using a truck-mountcd, hollow-stem augcr drill rio, which was operatcd by an indepcndcnt company working undcr subcontract to Adapt. A geotechnical representative of Adapt was on-site to observe thc boring, obtain represcntativc soil samplcs, and log lhe subsurface conditions. .4Rer thc boring was complcted, thc borchol�was backfilicd with a m:xturc of soil cuttings and bcntonitc chips. Thc ]ocation oF thc boring advanccd for this study is shown on the uttachcd Cigurc 2. Thc spccific location and depth of the cxploration performed was scicctcd in rclation to the proposed site fcatures, under the ecnsVaints of budget and site acccss. Thc boring location and other features sho�vn on Figure 2 were obtained by hand taping from cxisting site features; as such, thc exploration location sl�own should be considcred accurate only to thc�cgrec implied by the mcasuring methods used. During drilling, soil samples were obtained at 2.5 ro 5.0-foot depth intervals using the Standard Penctration Test (SPT) procedurc (ASTM: D 1586). This tcst and sampling mcthod consists of driving a standard 2-inch outsidc diametcr (OD) split-barrcl samplcr a distancc of 18 inchcs inro thc soil �vith a 140-pound hammer, froc-falling a distancc of 30 inchcs. The number of blows requircd to drivc thc sampler Uvough cach of llie tivcc, 6-incl� intcrvals is notcd. Tl�c total numbcr of blows struck during thc final 12 inches of penetration is considercd tl�e Standard Pcnctration Resistance,or"blow counf'. If 50 or more blows are swck within one G-inch interval, thc driving is ccased and the blow count is recordcd as SJ blows for thc actual numbcr of inclics of penctration. The resulting Standard Penclration Rcsistancc values provide a mcasure of the rclative density of granular soils or the relative consistcncy of cohcsivc soils. The eaplor�tion log aqachcd to this report indicate the vertical sequcnce of soils and materials cncountered in cach expioruliun, Uused primarily un our field classifications and supportcd by our subscquent laboratory cxamination and tcsting, if applicablc. Where a soil contact was abscrved to be gradational or undulating, our logs indicatc thc avcragc contact dcpth. Our boring fog also graphically indicate the SPT blow count, sample type, sample number, and approximate depth of each soil samplc obtained from the cxploration. If any groundwa�cr was cncountcrcd in an cxploration, the approximatc groundwater depth is depicted on thc exploration logs. It should be realizcd that thc explorations pedomied for this cvaluation reveal subsurface conditions only at discretc locations across the project site and that actual conditions in other arcas could vary. Furthemiore, the naturc and cxteni of any local variations would not become cvidcnt until additional explorations are performcd or until conshvction activities havc commcnced. If significant variatioas arc obscrvcd at that timc, �vc may nced to modify our conclusions and recommcndations containcd in this rcport to rcflcct tl�e actual sitc conditions. SITE CONDIT[ONS Thc fallo�ving scctions dcscribc a�r oUscnations, mcasurcmcnts, anc intcr�nctations conccrning surfacc, soiL crowid��•atcr, and scisntic conditions at thc projcct sitc. Neztel Go Tetra Tech June 25,2004 LSI Adapt Pro;ect No.WA0441499•GEO Page�5