13-7-13. Storm drainage and flood plains .

(1) A storm drainage system for the entire subdivision shall be designed by a professional engineer, licensed in the State of Utah and qualified to perform such work. Existing storm drainage features which are to be incorporated in the design shall be identified. If the subdivision has phases, a general storm drainage plan for the entire area shall be presented with the design and engineering stage. Appropriate development stages for the storm drainage system for each phase shall be indicated.

(2) No lot one acre or less in area shall include flood lands. All lots of more than one acre shall contain not less than 40,000 square feet of land at an elevation at least two feet above the elevation of the 100 year recurrence interval flood or, where such data is not available, five feet above the elevation of the maximum flood of record.

(3) Storm drainage systems shall be designed to consider the storm drainage basin as a whole and shall accommodate not only runoff from the subdivision but also, where applicable, the runoff from those areas adjacent to and upstream from the subdivision itself, as well as its effects on lands downstream. (Ord.2005-21, 09/6/05)