No plat shall be approved for any sub­di­vi­sion which is sub­ject to flood­ing as defined in the Coun­ty Zon­ing Ordi­nance, unless the plat con­forms to the applic­a­ble require­ments of the Ordinance.

(A) No plat shall be approved for any sub­di­vi­sion or part there­of which is sub­ject to peri­od­ic flood­ing or which con­tains inad­e­quate drainage facil­i­ties or which makes ade­quate drainage of streets impos­si­ble.  How­ev­er, if the sub­di­vider agrees in writ­ing to make improve­ments at his expense which will, in the opin­ion of the Plan­ning Com­mis­sion, make the area safe for human occu­pan­cy and use fur­ther pro­vides ade­quate drainage for streets, then the pre­lim­i­nary and final plat may be approved.

(B) Storm water drainage shall be dis­charged to marsh­ lands, swamps, reten­tion basins or oth­er treat­ment facil­i­ties.  Diver­sion of storm water to marsh­lands or swamps shall be con­sid­ered by the Plan­ning Com­mis­sion for exist­ing or planned sur­face drainage.  Marsh­lands and swamps used for storm water shall pro­vide for nat­ur­al or arti­fi­cial water lev­el control.

(C) No exist­ing ditch, stream, drain or drainage canal shall be deep­ened, widened, filled, rerout­ed or filled with­out writ­ten per­mis­sion from the prop­er authority.

(D) Where arti­fi­cial chan­nels must be con­struct­ed to aug­ment the nat­ur­al drainage sys­tem, such chan­nels as well as the nat­ur­al drainage ways may be planned as part of a recre­ation trail sys­tem.  Chan­nels shall be designed to be aes­thet­i­cal­ly com­pat­i­ble for recre­ation­al trail use.

(E) The drainage sys­tem shall be con­struct­ed and oper­a­tional dur­ing con­struc­tion; or as approved by theCountyEngineer.

(F) The nat­ur­al drainage sys­tem shall be used as far as is fea­si­ble for the stor­age and flow of runoff.

(G) The Coun­ty Board shall not approve the final plat unless in addi­tion to the require­ments of Sec­tion 34‑5‑17 above, the topo­graph­i­cal and pro­file stud­ies to be sub­mit­ted with the sub­di­vi­sion plat have on their face the cer­ti­fi­ca­tion of a Reg­is­tered Pro­fes­sion­al Engi­neer, and the own­er of the land or his duly autho­rized attor­ney.  The cer­ti­fi­ca­tion shall state in effect that to the best of their knowl­edge and belief:

  1. the drainage of sur­face waters will not be changed by sub­di­vi­sion con­struc­tion; or
  2.  if sur­face drainage will be changed, ade­quate pro­vi­sion has been made for col­lect­ing such water into des­ig­nat­ed pub­lic areas or approved drains. In addi­tion, cer­ti­fi­ca­tion must be made that such water will not cause dam­age to adjoin­ing prop­er­ties because of sub­di­vi­sion construction.

These topo­graph­i­cal and pro­file stud­ies shall not be record­ed but shall be filed as a pub­lic doc­u­ment.