(A) In the selection of a drainage plan for a development, the applicant shall choose a strategy which strives to minimize the increase in runoff volumes and rates from the site. The applicant shall observe the following hierarchy in developing a drainage plan:
(1) Minimization of impervious surfaces on the property;
(2) Flow attenuation by use of open vegetated swales and retention of natural depressions, or construction of new ones, in conjunction with retention of existing natural stream channels;
(3) Infiltration of storm water runoff on-site;
(4) Storm water retention structures;
(5) Storm water detention structures; and
(6) Storm sewers.
(B) At all times the applicant shall keep in mind ground water quality and public safety and convenience in the selection of drainage plan elements.
(Ord. 801, passed 7-26-05) Penalty, see § 154.99