§ 42-92. Area with existing drainage systems.

In any area where the approved positive drainage systems exist, the following shall be required:

(1)

All permit applications for any new buildings, and all modifications, alterations or additions to any such building which alter the existing drainage flow, shall be accompanied by a final draining plan prepared, signed and sealed by a state registered engineer or architect showing the proposed site plan with flow arrow indicating the final direction of the flow of rainwaters to the existing drainage system.

(2)

All permit applications for new buildings, and all modifications, alterations or additions to any such building which alter the existing drainage flow, shall be accompanied by a drainage plan, prepared, signed and sealed by a state registered engineer or architect which will provide for adequate drainage on the site or within swale areas on adjacent and contiguous public right-of-way to retain all runoff from the first one-inch rainfall and all additional runoff necessary to insure that all impacted public drainage facilities can operate at or above a level of service equivalent to the 24-hour/three-year return storm event.

(Code 1978, § 4-7(b); Ord. No. 91-4, § 1(b), 1-21-91)