8215 BROADWAY 2016-01-01 MF Import

ADaPT En¢incerin¢, Inc. During drilling, soil samplcs were oUtaincd on 5-foot depth intervals using the SWndard Penetration Test (SPT) procedure (ASTM: D 1586). This test and sampling method consisu of driving a standard 2-inch ouuide diameter !OD) split-barrcl samplcr a distance of 18 inches into the soil with a 140-pound hammer, free-falling a distancc of 30 inches. The nurober of blows required to drive the sampler through each of the three. 6-inch intervals is notcd. The total number of blows siruck during the final 12 inches of penetration is considered thc Standard Penetration Resistance, or "blow counP'. 11' S0 or more blows are struck within one 6-inch interval, the dnving is ceascd and the blow count is recorded as 50 blows for thc actual number of inches of pcnetration. The resulting Standard Penetration Resistance values provide a mcasure of thc relative density of granular soils or thc rclaiive consistency of cohesive soils. Ihe boring log appended to this rcport describes the various typcs of soils encountcred in lhe b�ring, based primarily on visual interpretations made in the ficld. The log also indicates the approximate depth of the contacls between diffcrent soil types, although thesc contacts may bc gradational or undulating. Where a change in soil typc occurred betwecn sampling intervals, we inferred the depth of contact. In addition, the log indicates the depth of any groundwater obscrved in thc boring; the Standard Penetration Rcsistance at each sample location, and any laboratory tcsts perfortncd on the soil samples. SITE CONDITIONS Thc following sections describe our observations, measuremcnts, and intc�prctations concerning surface, soil, groundwater, and seismic conditions at the project site. Srujnce Conditions The host paroel is located at 8215 I3roadway in Lvcrctt, Washington. Currently, the host site is occupied 1-5 Trailcr Sales, Feely Ente�prises. Thc proposed tower lease area is localed at the noriheast portion of the hust property in an undeveloped area. The topography of the leasc arca slopcs in lhe southwest to the northeast direction. The g�round surface at the proposed tower lease is covcred by blackUerry bushes, concrete debris, and wood matcrials. Thc proposed row�er Icase area can be accessed via a paved driveway off of Broadway. The proposed lease area abuts a iarge retaining wall for Interstate 5 which is located cast of thc site. We understand VoiceStrcam Wircicss proposcs to construct a monopole communicatinn tower and associated equipment building or cabmets. The project site and surrounding area are shown on Qie attachcd site vicinity map (Location Map, Figure 1). The attached Site and Exploration Plan (Pigure 2) shows the approximatc location of thc proposed cellular towcr lease area in relation to other site features. Subsurjace Condrtions On April 6, 2000, �n exploratoiy tcst boring was drilled to a dcpth of approximatcly 28.5-fect below the existing ground surtacc. The location ef the boring, designated as B-1, is shown on Figure 2. Surficial soils cncountercd at thc boring location consisted of about 2-inches of grass and topsoil over silty sand \'uice5trcam Wimless May 18, 2W0 ADaPI' Pmjcct No. WA00-0O)4 �°B� Z