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The applicant/permittee shall:

A. Submit a geotechnical report, prepared by a geotechnical engineer, when required pursuant to the Land Use Code or clearing and grading development standards. The clearing and grading development standards specify when a subsurface investigation is required and the level of investigation and information required in the report;

B. Minimize clearing and grading on slopes 15 percent or greater and meet the geologic hazard areas performance standards set forth in LUC 20.25H.125, now or as hereafter amended. When clearing or grading of building sites is interrupted or suspended for any reason, the permittee shall stabilize the site(s) and maintain the erosion control BMPs consistent with BCC 23.76.090(E) and the clearing and grading development standards, now or as hereafter amended. If the city deems a construction site abandoned, the applicant or permittee shall install permanent erosion and sedimentation measures pursuant to BCC 23.76.090(F), now or as hereafter amended;

C. Comply with the Land Use Code restrictions applicable to geologic hazard areas (see LUC 20.25H.125, now or as hereafter amended);

D. Limit the maximum gradient of artificial slopes to no steeper than 2:1 (two feet of horizontal run to one foot of vertical fall) unless a geotechnical engineering report and slope stability analysis is provided and shows that a factor of safety of at least 1.5 for static loads and 1.1 for pseudostatic loads can be met, as demonstrated per the methodology in the clearing and grading development standards;

E. Perform no clearing, excavation, stockpiling or filling on the potential slide block of an unstable or potentially unstable slope unless it is demonstrated to the director’s satisfaction that the activity would not increase the load, drainage, or erosion on the slope;

F. Perform no clearing, excavation, stockpiling or filling on any unstable or potentially unstable areas (such as landslide deposits) unless it is demonstrated to the director’s satisfaction that the activity would not increase the risk of damage to adjacent property or natural resources or injury to persons;

G. Intercept any ground water, subsurface, or surface water drainage encountered on a cut slope and discharge it at a location approved by the director in consultation with the Bellevue utilities department;

H. Follow the procedures and standards in the clearing and grading development standards related to slopes; and

I. Design and protect cut and fill slopes to minimize erosion. (Ord. 6318 § 22, 2016; Ord. 5906 § 13, 2009; Ord. 5452 § 9, 2003; Ord. 4754 § 2, 1995.)