624 MAULSBY LN 2018-01-02 MF Import

November 20, 2006 1-IWA Project No. 2006-000-21, Task 84 for the new additions extend down to the level of the existing foundations for the basement. GEOLOGIC HAZARDS Slone hazard Areas In accordance with the criteria contained in the City of Everett Geologically Hazardous Areas Regulations, Chapter 19.37.080, the subject property contains a slope considered a landslide hazard area. This area is also noted as Potentially Unstable on the Puget Sound Coastal Atlas. In addition, review of topographic maps and our observations during site reconnaissance indicate that the western portion of the lot, beyond the top of the slide scarp, can be classified as a steep slope according to the Code. However, the existing native soils consist of soils that were glacially consolidated, and are relatively dense. In addition, present site development plans do not include any modification of the steep slope portion of the existing hillslope, and will not extend any closer into the geologically sensitive area than the existing structure on the site. The addition at the northwest corner of the site will be setback at least 45 feet from the lop of the old slide scarp. The addition at the southwest corner of the site will be setback about 67 lect from the top of the old slide scrap. CONCLUSIONS AND RECOMMENDATIONS Geologically Hazardous Areas In our view, the proposed addition will not adversely affect the overall stability of the adjacent steep slopes. The new additions will be setback a minimum eislance of 45 feet from the top of the old slide scarp. In our opinion, the resulting setback will serve as a functional buffer from the top of slope and permit reasonable use of the property and the proposed developments to proceed. The current setbacks are well within the current requirements for standard setback buffer of 25 feet as stipulated in ENIC 19.37.80(B)I. It is our opinion, the proposed development, as currently planned. will avoid impacts to the geologically hazardous areas and no geologic hazards will result from the proposed development either on site or on any adjacent property as long as recommendations presented herein are met during construction: Best Management Practices (BMP's) should be implemented during construction as prescribed in local City and County regulations for erosion control during construction. These measures include an erosion control plan that addresses, limiting activity during wet periods, placement of a silt retention system on the western side of the property, and proper disposal or recompaction of any material that is disturbed on the site. We recommend that construction equipment and materials be operated and maintained a minimum distance of 30 feet from the lop of the old slide scarp. No stockpiles of Muirhead Geologic Hazard Assessment 4 14WA GeoSciences Inc.