6107 BERKSHIRE DR 2018-01-02 MF Import

ADaPT Engineering, Inc. Western Wireless Corporation AMPT Job No, WA98-992 April I, 1998 Page 2 During drilling, soil samples were obtained on 5 foot depth intervals using the Standard Penetration Test (SPT) procedure (ASTM:D 1586). This test and sampling method consists of driving a standard 2-inch outside diameter (OD) split -barrel sampler a distance of 18 inches into the soil with a 140-pound hammer, free -falling a distance of 30 inches. The r.umber of blows required to drive the sampler through each of the three, 6-inch intervals is noted. The total number of blows struck during the final 12 inches of penetration is eo,:�;arAd the Standard Penetration Resistance, or "blow count". If 50 or more blows are struck within one 6-inch interval, the driving is ceased and the blc�w count is recorded as 50 blows for the actual number of inches of penetration. The resulting Standard Penetration Resistance values provide a measure of the relative density of granular soils or the relative consistency of cohesive soils. The boring log appended to this report describes the various types of soils encountered in the boring, based primarily on visual interpretations made in the field. The log also indicates the approximate depth of the contacts between different soil types, although these contacts may be gradational or un fulating. Where a change in soil type occurred between sampling intervals, we inferred the depth of contact. In addit;nn, the log indicates the depth of any groundwater observed in the boring, the Standard Penetration Resistanc^ at each sample location, and an;, laboratory tests performed on the soil samples. SITE CONDFOONS The following sections describe our observations, measurements, and interpretations concerning surface, soil, groundwater, and seismic conditions at the project site. Surface Conditions The host parcel is located at 6107 Berkshire Drive in. Everett, Washington (Figures I and 2). The host parcel is currently occupied by an enclosed concrete reservoir owned by the City of Everett. The proposed lease site is located on the northeast portion of the site in an area between the concrete reset voir and the chain -link fence, which demarcates the eastern boundary of the reservoir property. The Everett Golf and Country Club is located to the east of the proposed tower lease ar •a. The proposed tower lease area encompasses an area of approximately 40 feet by 40 feet surrounding the proposed tower location (:gure 2). An existing above ground water intake pipeline is situated approximately 40 feet south of the lease area. According to information provided to ADaPT by Western Wireless Corporation, the elevation of the proposed tower lease site is approximately 354 feet above the mean sea level. The test boring was drilled in the grassy area at a distance approximately 60 feet north of the pipeline and 18 feet west of the chain -link fence.