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Page 4 <br />Mr. and Mrs. Darrel Freudenburg <br />C. Dames and Moore Report dated July 29, 1991 -- <br />Letter Report - Freudenburg Residence Erosion <br />This report presents the results of a preliminary review <br />of the property history and a visual site investigation. <br />The subsequent Dames and Moore report of December 18, <br />1991 is an extensive follow-up to this report. This <br />BOE//VG July report, however, does provide several preliminary <br />conclusions. The report concludes that there are three <br />contributory causes to the soil settlement in Powder <br />Mill Gulch. These causes include very high peak flows <br />in Powder Mill Gulch, causing bank erosion; geologic <br />conditions that are conducive to landsliding; and the <br />presence of the small icg dam, which causes extensive <br />erosion downstream. The report also notes that channel <br />and bank erosion and local landsliding within Powder <br />Mill Gulch have been documented to be occurring since <br />the turn of the century due to logging activities. <br />D. GeoEngineers Report dated August 23, 1991 - <br />Geotechnical Engineering Consultation - Unstable <br />Slope - Freudenburg Residence <br />This report was prepared for the City of Everett and <br />discusses the unstable portion of the slope located <br />between the house and the creek. The report estimates <br />that the failures surface for this unstable slope is <br />less than 10 feet below the ground surface. This report <br />notes that you have periodically graded the ground <br />surface adjacent to the house to maintain relatively <br />level access. According to this report, the slopes <br />adjacent to the south side of the creek to the east and <br />west of the house on the property are also unstable. <br />One recommendation of the report is that all downspouts <br />be tightlined to a suitable disposal point and that the <br />ground should be graded or ditched to direct surface <br />water runoff away from ti:e slope. <br />E. Dames and Moore Memorandum dated December 18, <br />1991 - Results of Geotechnical Evaluation of <br />Freudenburg Residence <br />This report is based on a field investigation and <br />laboratory analysis of soil samples obtained from the <br />property. This report states that the property consists <br />of two distinct soil layers. The top layer consists of <br />fill material male up of soils ranging from silty fine <br />