<br />16 <br /> <br />certerra.com 4660 Main Street, Suite 100, Springfield, Oregon 97478 T: 541.393.6340 <br />sloping (greater than 2H:1V). The steep area was located along the east side of Floral Hill Drive, and consisted <br />of an 8- to 10-foot-tall, 25-to-30-degree slope, that may contain previously placed fill m aterials, based on visual <br />observations. On the date of our site investigation, this steep slope face was covered with grass and brush, and <br />we did not observe any visual signs of recent ground movement in this steeply sloped area such as tension <br />cracks in the ground surface, erosion channels or large bare patches of ground. Based on our review of the <br />Oregon HazVu: Statewide Geohazards Viewer map (https://gis.dogami.oregon.gov/maps/hazvu), the site is <br />mapped within areas of Moderate and High Landslide Hazard risk. The northwest corner of the project site <br />appears to be located within a historic landslide deposit (Talus-Colluvium), see Figure 5 below. There are no <br />active landslides mapped on or near the subject property. Note that our currently authorized services do not <br />include a detailed, quantitative evaluation of local shallow slope stability, or an evaluation of global, deep -seated <br />slope stability. <br /> <br />Liquefaction <br /> <br />In our professional opinion, the risk of liquefaction on the subject property is low when considering the site <br />geology, and the consistency and strength of the native soils encountered. Based on our review of the Oregon <br />Department of Geology and Mineral Industries (DOGAMI), Oregon HazVu: Statewide Geohazards Viewer <br />(https://gis.dogami.oregon.gov/maps/hazvu), the property is located in an area of no Earthquake Liquefaction <br />(Soft Soil) Hazard. <br /> <br />Surface Rupture due to Faulting or Lateral Spreading <br /> <br />The risk of earthquake surface rupture on the subject property is considered low due to the lack of mapped faults <br />at the site based on our review of the United States Geological Survey’s (USGS) Map of Quaternary Faults and <br />Folds in Oregon by Stephen F. Per sonius, Richar L. Dart, Lee-Ann Bradley and Kathleen Haller, 2003 <br />(https://pubs.usgs.gov/of/2003/ofr-03-095/OFR_03-095v1-1_map.pdf). It should be noted that it is possible for <br />faults to be present, which are not currently mapped.