(A) Applicants may select runoff control techniques, or a combination of techniques, which are most suitable to control stormwater runoff from the development site. All controls shall be subject to approval of the Municipal Engineer. The Municipal Engineer may request specific information on design and/or operating features of the proposed stormwater controls in order to determine their suitability and adequacy in terms of the standards of this chapter.
(B) The applicant should consider the effect of the proposed stormwater management techniques on any special soil conditions or geological hazards which may exist on the development site. In the event such conditions are identified on the site, the Municipal Engineer may require in-depth studies by a competent geotechnical engineer. Not all stormwater control methods may be advisable or allowable at a particular development site.
(C) In developing a stormwater management plan for a particular site, stormwater controls shall be selected according to the following order of preference:
(1) Infiltration and/or treatment of impervious surfaces during site design;
(2) Flow attenuation by use of open vegetated swales and natural depressions; and
(3) Stormwater detention/retention structures.
(D) Infiltration practices shall be used to the extent practicable to reduce volume increases and promote ground water recharge. A combination of successive practices may be used to achieve the applicable minimum control requirements. Justification shall be provided by the applicant for rejecting each of the preferred practices based on actual site conditions.
(Ord. 4-2011, passed 10-8-2011)