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� Zd 26 w CA S��N p <br /> �E�(n-. .{ �� ? ��J�j <br /> November 15, 1491 <br /> Speedway Machine <br /> 5631 Glenwood Avenue <br /> Everett, Washington 98203 <br /> Re: New Commercial Site <br /> Gendemen: <br /> You have acquired a site in the 2000 block of West Casino road for purposes of buitding <br /> a new shop building. You were awaze at the time of purc6ase Wat fill had been placed over <br /> the property many years beforc and that the fill presence would be relevant to the <br /> oonstruction and stabiliry of your building. I 5rst inspected the site on October 15 and <br /> advised that fills inspected after the fact could not be unequivocally certi8ed because of <br /> unverifiable homogeneity. <br /> You indicated understanding of the possibility that the 5ll was not uniform and requested <br /> that I explore at random locations to assess the evideat nature and qualiry. 'Ihat was <br /> accomplished by digging Sve backhoe test pits on October 21. Observations were also made <br /> at a suth location where the backhoe created a substantial hole in t6e process of removing <br /> a vee atump. Test locations are shown on an attac6ed partial,undated,undtled topographic <br /> and boundary survey which you provided. A new survey is now in progress. Log summaries <br /> of conditions at the six locations aze preseAted on pages 4 and S. <br /> In brief, the fll is of glacial till composition containing a small fraction of asphaldc cement <br /> chunks. It would qualify as well wmpacted and was almost certainly placed in individually <br /> compacted layers. It appears to be free of organic matter or other objectionable materials. <br /> The high density was evidenced by difficulty of digging and by [he ability of t6e unbraced <br /> pit walls to stand without slaughage. <br /> If one were to assume that the test pits NIl1 represent the condition as a whole, your <br /> concrete block building rnuld be supported on a spread footing sized to building code, i.e., <br /> bearing at not more than 2,000 psf on the soil. Original topsoil, which rnntains roots and <br /> other organic matter,was not stripped in preparation for filling. It would not be acceptable <br /> � <br /> JAMES EATON, PE � GEOTECHNICAL SERVICES <br /> (206)882-6842 Box 128•Hobart,WA 99025 <br />