COM 0945.000 2020-2022 - Laserfiche WebLink

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Under the Agricultural Lands of Importance to the State of Hawaii (ALISH) classification system, it appears that the site is not classified as other "Prime," 'Important," or "Unique." C. Natural Hazards 1. Drainage The Federal Flood Insurance Rate Map (FIRM) identifies the subject site to be within Zone X, areas outside of 500-year flood. As there will be an added level of impervious surface resulting from the construction of the on-site infrastructure, there may be potential increased run-off. In that event, drywell(s) or similar type of accommodations will be implemented, subject to the review and approval of the Department of Public Works and State Department of Health via the Underground Injection Control (UIC) permit process. 2. Tsunami Hazard Given its elevation (1,300+) and distance from the nearest shoreline (1± miles), it is located outside of the Civil Defense's Tsunami Evacuation Zone. Thus, there should be little or no threat from high waves. 3. Volcanic and Earthquake Hazards The United States Geological Survey (USGS) classifies the subject site as Lava Flow Hazard Zone 3, on a scale of ascending risk, 9 to 1. This designation is comparable to the City of Hilo. There is very little that can be done to protect structures and improvements on the site from lava flows. Relative to protection of life, however; this would be achieved through the evacuation routes and warning systems provided by the County Civil Defense agency. Such notices will be prominently placed within office building. The entire island of Hawaii falls within Earthquake Zone 4, according to the County Building Code. As such, all • structures built on the site will have to meet with the more restrictive seismic hazard structural requirements of the Building Code. • 6 • •