§ 51.075 RETENTION OF STORMWATER IN CENTRAL DETENTION FACILITIES REQU IRED; EXCEPTIONS.
   (A)    No sewerage system permit of the Metropolitan Water Reclamation District of Greater Chicago will be approved by the village unless the permit shall provide for the retention of stormwater in the area covered by the permit in a central basin as provided for herein.
   (B)   The President and Board of Trustees of the village recognize that in certain circumstances it may not be feasible for an applicant for a sewer permit to retain its stormwater in a central basin. In those circumstances an exception may be granted by the President and Board of Trustees after recommendation to it by the Village Engineer, to an applicant for a Metropolitan Water Reclamation District of Greater Chicago sewerage system permit, when any one or more of the following circumstances warrants an exception:
      (1)    Where the uniqueness of the land as it relates to topographical, geological, and geographical considerations warrant an exception.
      (2)    Where the nature of the development, whether it be single-family, multi-family, commercial, or industrial, and recognized engineering standards, would warrant an exception.
      (3)    Where the timeliness of the development as it relates to other development in the area and the overall status of the central basin program warrants an exception.
      (4)    In the event an exception shall be granted by the village for any one or more of the foregoing reasons, then the applicant shall provide for the retention of stormwater runoff as heretofore established for wet central basin.
   (C)    The President and Board of Trustees may grant an exception in favor of dry retention, only after recommendation by the Village Engineer and only when one or more of the following factors are present:
      (1)    The natural rate of flow-through from upstream would not support a wet pond.
      (2)    When the ecological balance of the pond, such as the quality of the water to maintain plant and fish life, is that the quality of water could not reasonably be maintained.
      (3)    When the nature of the recreational needs of the area dictates a dry pond.
      (4)    When the aesthetic considerations as they pertain to the surrounding development dictate a dry pond.
(Ord. 74-0-043, passed 11-18-74; Am. Ord. 2008-O-048, passed 10-7-08) Penalty, see § 51.999