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INSPECTION GEOTEST SERVICES� INc. <br /> REPORT 741 Merine Drive,Bellingham,WA 98225 Phone: 360.733.7318 Faz: 360.733.7418 <br /> PROJECT: Baldwin Retainfng Wdl JOB*: OS-05233 <br /> ADDRESS: 3206 Wave Drive, Everott,WA REPORT#: S12 <br /> CLIENT: Larry Bsldwin DATE: 11-7-08 <br /> CONTRACTOR:Client PAGE#: 1 of 1 <br /> WEATHER: PeRly Cloudy,55° PERMIT#: <br /> INSPECTOR:JB <br /> Inspection of: Allen Block Retainin Wall <br /> GeoTest was on-site as requested to observe a surficial soil crack that has <br /> developed behind the lower of 2 Allen Block Retaining Walls. <br /> The crack is located 8' to 9' behind the wall face, is in plain view and is approximately <br /> 20' in IEngth. The crack ha� opened several millimeters at maximum and the ground <br /> surface appears to have dropped slightly to the wall side (east side) of the crack. The <br /> area was probed witfi a 3/8" stainless steel soil probe, 2" to 8" penetrations were <br /> observed. <br /> Soil in the crack exhibited a similar consistency to soil in the surrounding area. No <br /> deflection of the wall face blocks, which would be indicative of wall failure, was <br /> apparent at this time. No bulging of soils or water seeps, indicative of a rotational <br /> slope failure undercutting the wall, was apparent in front of the wall at this time. The <br /> retaining wall backfill in front of the crack had issues with an over optimum moisture <br /> content and the placement of less than ideal fill. <br /> It is GeoTesPs opinion that the observed crack was the result of differential settlemer�t <br /> between largely native soil to the west and backfill to the east. No eminent threat to <br /> the wall stability is apparent at this time. GeoTest recommends that the client observe <br /> the crack and wall condition regularly, especially after significant rain events. If <br /> significant movement is observed, GeoTest should be contacted for further inspection <br /> of wall stability. <br /> Copies: Client ,� <br /> Submitted By� .��f9���? <br /> Granl Richardson <br /> Technical Director <br /> .�nRn�.u.y .M1p,.�n.u..�.�.�c. .�.w..... .m�i��sre�Msnall�rol0erepoDuceCe.reptinlull witMUllFewiiltenepryorelo/GlOTesiSarvKes hK � <br /> ^ TPe eGove lesl resulls rela�e only lo:�o namC�e lo�Ittalim)IebteO Coppi9M E'1?93 GTS � _� <br /> 1 <br />