1618 HOLBROOK AVE 2018-01-02 MF Import

I Retaining, Wall Letter Lyashuk Residence, Everett, WA January 29, 2007 NGA Pile No. 755506 Page 7 USE OF THIS LETTER We have prepared this letter for Mr. Vitaliy Lyashuk and his agents, for use in planning and construction of the ultra block retaining wall planned on this project only. Our recommendations are based on interpreted subsurface conditions based on surface observations and limited hand tool explorations. The data and letter should be provided to prospective contractors for their bidding and estimating purposes, but our letter, conclusions and interpretations should not be construed as a warranty of subsurface conditions. I The scope of our work does not include services related to construction safety precautions and our recommendations are not intended to direct the contractors' methods, techniques, sequences or I procedures, except as specifically described in our letter for consideration in design. There are possible variations in subsurface conditions. We recommend that project planning include contingencies in budget and schedule, should areas be found with conditions that vary from those described above. We recommend that we be retained to provide construction monitoring services to evaluate conditions encountered in the field with respect to anticipated conditions, to provide recommendations for design changes should the conditions differ front anticipated, and to evaluate whether earthwork activities t comply with contract plans and specifications. All people who own or occupy homes on or near 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 geotechnical engineer should be contacted for advice on remedial/preventative measures. The probability that landsliding will occur is substantially reduced by the proper maintenance of drainage control measures at the. Therefore, the homeowner should take responsibility for performing such maintenance. Within the limitations of scope, schedule and budget, our services have been performed in accordance with generally accepted geotechnical engineering practices in effect in this area at the time this letter was prepared. No other warranty, expressed or implied is made. Our observations, findings, and opinions are a means to identify and reduce the inherent risks to the owner. NELSON GEOTECHN/CAL ASSOCIATES, INC.