No person shall cause or allow earth-disturbing activities on a development or construction area except in compliance with the standards and criteria set out below.
(a) Sheet and Rill Erosion. To control pollution of public waters by soil sediment from accelerated sheet and rill erosion on a development area, the responsible person shall:
(1) Construct and maintain sediment basins sized in accordance with the U.S. Soil Conservation Service handbook entitled, "Water Management and Sediment Control for Urbanizing Areas"; or
(2) Utilize other measures identified within the handbook or other acceptable measures approved by the City Engineer.
(b) Concentrated Water Erosion. To control pollution of public waters by soil sediment from accelerated erosion in drainageways and grassed waterways and in streams and ditches disturbed or modified in conjunction with the development or construction process, the responsible person shall:
(1) Design, construct and maintain concentrated water flow channels such that the velocity of flow does not exceed the permissible velocities provided by the City Engineer; or
(2) Utilize other measures identified within the handbook or other acceptable measures approved by the City Engineer.
(c) Control of Sloughing, Land Sliding and Dumping of Earth Material. To control sediment pollution of public waters caused by sloughing, land sliding or dumping of earth material, or placing of earth material into such proximity that it may readily slough, slide, or erode into public waters by natural forces, no person shall:
(1) Dump or place earth material into public waters or into such proximity that it may readily slough, slide or erode into public waters unless such dumping or placing is authorized by the City Engineer for such purposes as, but not limited to, constructing bridges, culverts, erosion control structures and other instream or channel bank improvements works; or
(2) Grade, excavate, fill or impose a load upon any soil or slope known to, or prone to, slipping or land sliding, thereby causing it to become unstable unless qualified engineering assistance has been employed to explore the stability problems and make recommendations to correct, eliminate or adequately address the problem.
(Ord. 2020-4053. Passed 1-7-21.)