Skip to main content

In addition to the requirements of SMC 14.255.080, critical area reports for geologically hazardous areas shall include, where applicable:

A. Site history regarding landslides, erosion, and prior grading;

B. Topography in suitable contour intervals;

C. Height of slope, slope gradient, slope stability, and slope retreat rate recognizing potential catastrophic events;

D. Description of the geology (including faults), hydrology (including springs, seeps, and surface runoff features), soils (including, in seismic hazard areas, thickness of unconsolidated deposits and liquefaction potential), and vegetation;

E. Type, extent, and severity of geologic hazard(s);

F. Analysis of the proposal’s risk from the geologic hazard and the proposal’s potential for exacerbating off-site hazards or depositing sediment in wetlands or habitat areas;

G. Recommended buffers and other conditions of approval. In areas of erosion or landslide hazard, the recommended conditions may include:

1. Clearing, fill, and hard-surfacing limits, slope stabilization measures, and vegetation management plan;

2. Limitation on clearing during the rainy season, generally from October 1 to May 1;

3. Design parameters of foundations and retaining structures; and

4. Drainage plan and erosion and sediment control plan in compliance with City stormwater management regulations.

H. Overview of field investigations, measurements, references, and past assessments of the site.