For the purpose of this subchapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
50-YEAR STORM. A storm that has a 2% chance of occurring each year in accordance with the criteria established by Arizona Department of Transportation (ADOT) Highway Drainage Design Manual (HDDM), Volume 2, Hydrology (ADOT, 2014).
100-YEAR STORM. A storm that has a 1% chance of occurring each year in accordance with the criteria established by the Arizona Department of Transportation (ADOT) Highway Drainage Design Manual (HDDM), Volume 2, Hydrology (ADOT, 2014).
BUILDING FLOOR ELEVATION. The finished floor elevation in feet above mean sea level of the lowest floor of a building. Building floor elevations shall be related to the Town of Quartzsite datum.
BUILDING PAD ELEVATION. The elevation in feet above mean sea level of the material on which the floor slab directly rests.
COMBINATION STORAGE. Handling of storm water by utilizing both on-site retention and retention basins.
DRAINAGE PLAN. That certain plan on which are shown the location, dimensions and elevations of proposed storm water areas.
FLOODPLAIN or FLOOD-PRONE AREA. Any land susceptible to being inundated by water from any source.
FREEBOARD. The distance between the design high water surface and the top of the wall of a retention basin.
ON-SITE RETENTION. Storage on public or private property or any combination thereof, but not on a public street or alley right-of-way.
RETENTION BASIN. A designated area for total storage, without overland relief of flows generated during a design storm.
TEN-YEAR STORM. A storm that has a 10% chance of occurring each year in accordance with criteria established by Arizona Department of Transportation (ADOT) Highway Drainage Design Manual (HDDM), Volume 2, Hydrology (ADOT, 2014).
(Ord. 21-11, passed 10-26-2021)