The city council shall take into account flood hazards, to the extent that they are known, in all official actions related to land management, use and development.

    A.    New subdivisions, manufactured home parks, annexation agreements, planned unit developments (PUDs) and additions to manufactured home parks and subdivisions shall meet the requirements of Sections 15.60.060 and 15.60.070. Plats or plans for new subdivisions, manufactured home parks, and planned unit developments (PUDs) shall include a signed statement by a registered professional engineer that the plat or plan accounts for changes in the drainage of surface waters in accordance with the Plat Act (Illinois Revised Statutes, Chapter 109, Section 2).

    B.    Proposals for new subdivisions, manufactured home parks, planned unit developments (PUDs) and additions to manufactured home parks and subdivisions shall include base flood elevation data. Where the base flood elevation is not available from an existing study filed with the Illinois State Water Survey, the applicant shall be responsible for calculating the base flood elevation and submitting it to the State Water Survey for review and approval as best available elevation data. (Ord. 819 § 8, 1990)