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CASCADE GEOTECHNICAL <br />A DIVISION OF CASCADE TESTING LABORATORY, INC. <br />12919 N.E. 126TH PLACE KIRKLAND, WASHINGTON 98034 <br />KIRKLAND: (206) 821.5080 SEATTLE: (206) 525.6700 <br />April 14, 1986 <br />Cert. No. 864-21G <br />John Schilaty <br />5829 Fleming, Unit A <br />Everett, Washington <br />98203 <br />Attention: John Schilaty <br />Reference: Schilaty Building <br />5817 Fleming <br />Everett, Washington <br />Dear Mr. Schilaty: <br />On April 16, 1986 the undersigned engineering geologist visited the above <br />construction site to observe the exposed soils within the recently excavated <br />foundation area. The purpose of our visit was verify the suitability of the <br />exposed cut soils for support of the new townhouse structure. <br />In March of 1985, our firm excavated test pits on the lot immediately south of <br />this site. Our investigation indicated that the site was underlain by up to <br />eleven (11) feet of fill soils that were overlying a topsoil horizon and the <br />natural reddish brown silty sand. We confirmed that the reddish brown silty <br />sand was suitable for support of the anticipated structural loadings. <br />On our April 16th visit, we observed that there was a deep (approximately 10 to <br />12 feet) excavation toward the back (east) of the lot. We understand that you <br />will place your building foundation at the base of the deep excavation, thus <br />constructing a basement. The ba;e of the deep excavation exposed a reddish <br />brown silty sand. This material is judged to be natural glacial soils. Some <br />area of the excavation were still in fill. Judging from the elevation of the <br />reddish brown silty sand and information presented in our soils report for the <br />adjacent building, we conclude that the reddish brown silty sand will be <br />suitable to support the design structural loads of 2,000 PSF. <br />1) All footings should bear on or within the natural silty sand that is free <br />of organic, roots and water loosened soils. <br />2) Foundation drains should be placed to drain any water from the foundation <br />area. <br />We trust that the above information addresses the questions as requested. <br />Should this letter need clarification or if we may be of further service, <br />please call. <br />Sincerely, <br />CASCADE GEOTTEEECCCHNICAL <br />Char jt1i7, <br />ay, E. Ronald A. Parker, Engineering Geologist <br />President Vice President <br />