§ 58-545. Pond evaluation.

(a)

All preliminary plats that include proposed permanent ponds, and all preliminary plats that include stormwater runoff to any existing permanent ponds, shall be subject to the review of the state dam safety engineer. An evaluation of the pond dam shall be made by the designer, in accordance with the Dam Safety Law of 1967, and submitted to the dam safety engineer for review.

(b)

All existing ponds shall be evaluated and rehabilitated as necessary to ensure that the ponds will safely withstand the 50-year storm with a minimum of 0.50 feet of freeboard at the dam. Design calculations shall be based upon the existing built upon conditions for areas of the drainage basin within the town's jurisdiction. Design calculations shall assume future buildout conditions for any non-town jurisdictional areas within the drainage basin.

(c)

All proposed ponds which are constructed to meet stormwater detention requirements shall be designed as described in section 58-543.

(d)

All proposed ponds constructed for uses other than complying with detention requirements, such as for recreational use only, shall be designed to withstand the 100-year storm with a minimum of 1.0 feet of freeboard at the dam. Design calculations assumptions shall be the same as the existing pond evaluation criteria as described above.

(Ord. No. O-2014-14, 11-10-2014; Ord. No. O-2015-08, 6-8-2015)