15.18.540 Contents of critical areas reports.
In addition to the requirements of SPMC 15.18.090, critical areas 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 geologic hazard and the proposal’s potential for exacerbating off-site hazards;
G. Recommended buffers and other conditions of approval. In areas of erosion or landslide hazard, the recommended conditions may include:
l. Clearing, fill, and hard-surfacing limits, slope stabilization measures, and vegetation management plan;
2. Limitation on clearing during the rainy season, generally from October 1st to May lst;
3. Design parameters of foundations and retaining structures; and
4. Drainage plan and erosion and sediment control plan in compliance with town storm water management regulations; and
H. Overview of field investigations, measurements, references, and past assessments of the site. [Ord. 492 § 3 (Exh. B § 164), 2007.]