(A) In the selection of a drainage plan for a new development or re-development, the applicant shall evaluate and implement site design features which minimize the increase in runoff volumes and rates from the site.
(B) The applicant’s drainage plan submittal shall include evaluations of site design features which are consistent with the following hierarchy:
(1) Preservation of regulatory floodplains, flood prone and wetland areas;
(2) Minimize impervious surfaces on the property, consistent with the needs of the project;
(3) Attenuate flows by use of open vegetated swales and natural depressions and preserves the existing natural stream channel;
(4) Infiltration of runoff on-site;
(5) Provide stormwater retention structures;
(6) Provide wet or wetland detention structures;
(7) Provide dry detention structures; and
(8) Construct storm sewers.
(Ord. passed 12-9-02)