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Gary A. Flowers, PLLC <br />Geological & Geotechnical Consulting <br />19532 12'h Avenue NE <br />Shoreline, WA 98155-1106 <br />January 16, 2007 <br />Project No. 06-128 <br />Ron and Jennifer Van Derbeken <br />5910B Larimer Road <br />Everett, WA 98203 <br />Brad and Elisabeth Keck <br />5910A Larimer Road <br />Everett. WA 98203 <br />Subject: Geotechnical Services Report <br />5910 A & B Larimer Road <br />Everett, Washington <br />Dear Mr. and Mrs. Van Derbeken & Mr and Mrs. Keck: <br />This report presents the results of our recent evaluation of the above noted property at 5910A & <br />B Larimer Road in Everett, Washington. The purpose of this study was to evaluate a landslide <br />that had occurred on the slope area immediately behind (west of) the two affected residential <br />properties and extended onto the yard areas of the properties. Following our evaluation we were <br />to provide recommendations and geotechnical design parameters to stabilize the slope and <br />provide suitable protection to the residences. <br />SITE CONDITIONS <br />The subject properties (Van Derbeken and Keck) are located on the west side of Larimer Road <br />near the toe of a steep descending slope that extends from below the 1-5 freeway down to below <br />the cast side of Larimer Road. Overall slope height is several hundred feet. The lower portion of <br />the slope, in the area of the ongoing landslide, has a slope gradient on the order of 35%. Surface <br />grade in the lower yard area is about elevation 87 feet. The upper area of the landslide is about <br />elevation 120. Two tiers of rockeries are located in the yard area. A grass landscape area is <br />located on the flat area above the lower rockery. An undeveloped natural area is located above <br />the upper rockery. <br />Gary A. Flowers, PLLC. <br />19532 126 Amuc NE Shonlim Washington 98155.1106 206-417-7640 <br />