(1) Notify adjacent municipalities and the Washington State Department of Ecology prior to any alteration of a watercourse, and submit evidence of such notification to the Federal Insurance Administration.

(2) Require that maintenance is provided within the altered or relocated portion of said watercourse so that the flood-carrying capacity is not diminished. [Ord. 4469A § 1, 2019; Ord. 4469 § 1, 2019; Ord. 2648 § 4, 1987; Code 1970 § 24.16.036.]