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Anderson Landslide Repairs <br />Temporary Erosion Control <br />Everett, Washington <br />October 6, 2009 <br />NGA File No. 816909 <br />Page 2 <br />onto downhill properties. In fact, runoff coming off of the scarp should be reduced, as the erosion control <br />material will reduce the velocity of runoff and allow more infiltmtion/evaporation of rain water. Some <br />maintenance of this system will likely be needed during and after heavy rain events. We emphasize that <br />this is not a permanent slope stabilization measure. ]'he shoring wall along with erosion control and <br />drainage improvements ;s recommended in our geotechnical report should be implemented as soon as <br />possible. <br />We trust this memorandum should satisfy your ne ds at this time. Please contact us if you have any <br />questions or require additional services. <br />Attachments: Figures A and h <br />NELSON GEOTECHN/CAL ASSOCIATES, INC. <br />ZIL, <br />