4704 HARBOR LN 2018-01-02 MF Import

Final Summary Letter Anderson Slope Stabilization Everett, Washington NGA File No. 816909 May 14, 2010 Page 5 The slope and the repairs should be monitored on an on -going basis, especially during the wet season, for any signs of instability, and corrective actions promptly taken should any signs of instability be observed. Lawn clipping and any other debris should never be cast over the slope. USE OF THIS LETTER NGA has prepared this letter for Rick and Holly Anderson and their agents as a summary of the landslide repairs and retaining wall construction on this site and neighboring lots only. As we mentioned in our geotechnical report, all poople who own or occupy homes on hillsides should realize that landslide movements are always a possibility. The landowner should periodically inspect the slope, especially after a winter storm. If distress is evident, a geotochnical engineer should be contacted for advice on remediallpreventative measures. The probability that landsliding will occur is substantially reduced by the proper maintenance of drainage control measures at the site. Therefore, the homeowner should take responsibility for performing such maintenance. Consequently, we recommend that copies of our reports and correspondence be provided to future homeowners of the property if the home is sold. Witbin the limitations of scope, schedule, and budget, our services have been performed in accordance with generally acceptW geotechnical engineering practices in effect in this area at the time this report was prepared. No other warranty, expressed or implied, is made. Our observations, findings, and opinions arc a means to identify and reduce the inherent risks to the owner. .•. NELSON GEOTECHNICAL ASSOCIATES, INC.