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KRAZAN&ASSOCIATES, INC. <br /> KA No. 09216017 <br /> Pre-Purchase Reconnaissance <br /> 4613 Baker Drive <br /> Everett,WA <br /> August 12,201. <br /> "Page No. 3 ,ti <br /> Seismic Considerations: The Pacific Northwest is a region with known seismic activity. Soil and <br /> groundwater conditions as well as site topography can have a significant impact on the intensity of ground <br /> motion at a particular location. In general, dense granular soils can reduce the risk of structural damage due <br /> to seismic activity, whereas loose/soft soils tend to amplify ground motion and increase the corresponding <br /> risk of structural damage. <br /> Based on geologic mapping of the area, the subject site is interpreted to be underlain by medium dense to <br /> very dense, granular soils. Accordingly, it is our opinion that the native soils underlying the site should have <br /> a low potential for liquefaction and amplification of ground motion. <br /> Slope Stability Considerations: We did not observe indications of significant recent landsliding within the <br /> property. However, ancient landsliding is interpreted to have occurred on the steep slopes in the northern <br /> portion of the property and on neighboring properties. Furthermore, it is our opinion that there is the <br /> potential for future deep seated movements as well as shallow sloughing along the steep slopes. Maintaining <br /> an adequate building setback from the top of the steep slope should minimize the risk for structural damage <br /> due to slope movement. <br /> Site Drainage: The control of surface water and near-surface groundwater is very important for maintaining <br /> the long-term stability of the site and nearby slopes. The current stormwater drainage system appears to be <br /> adequate at this time, as site conditions are interpreted to be stable. If changes in slope stability should occur <br /> in the future,then surface water runoff improvements should be considered. <br /> Surface water runoff from roofs and other impervious surfaces, and groundwater from footing drains and <br /> French drains should be routed into an appropriate discharge location such that water is not allowed to flow <br /> over the steep slope. Stormwater runoff should not be directed toward the steep slope. Maintenance of the <br /> drainage system is very important for maintaining the stability of the steep slope, and thus it should be <br /> inspected on a regular basis and repaired as necessary. <br /> Vegetation Management and Erosion Control: The vegetation should be maintained on the steep slopes <br /> within the site. Vegetation is considered to play an integral part in stabilization of the surficial soil. Erosion <br /> and sediment control measures should be implemented if any soils are exposed on the slopes, and these <br /> measures should be in general accordance with Best Management Practices (BMPs) and with local <br /> regulations. Lawn clippings and other types of yard waste should not be placed on the steep slope. <br /> Limitations — Properties on Hillsides: During our visit, we did not observe indications of current land <br /> sliding within the property. Relatively shallow failures as well as surficial erosion are natural processes and <br /> should be expected to occur within sloping ground. It is our opinion that there is the potential for erosion, <br /> soil creep, and shallow failures within the loose surficial soils on the steep slopes. <br /> Krazan&Associates,Inc. <br /> Serving The Western United States <br />