(1) It is unlawful for any Person to obstruct or contribute to the obstruction of the flow of Storm Water runoff or non-Storm Water runoff into any sump, retention basin, storm drain, curb and gutter, drain inlet, or other associated structural controls that convey Storm Water and/or non-Storm Water runoff, unless the obstruction is authorized in writing by the Division.

(2) It is unlawful for a Person to cover over any Drainage System inlet for any reason or purpose, unless the obstruction is authorized in writing by the Division; provided, however, that Drainage System inlets may be temporarily obstructed in emergency situations in order to prevent contaminants from entering the system.

(3) It shall be unlawful for any Person, agency, or firm to place or cause to be placed in the easement, channel, bed or bank of any river, stream, wash or other natural drain or within or upon any storm drain, flood control channel, reservoir, detention basin, debris basin, spreading ground or other property over which the City has an interest, matter of any kind that may operate to impede, retard or change the normal direction of the flow of Storm Waters, or that may catch or collect debris carried by such waters, or that may be carried downstream by such Waters to the damage and detriment of adjacent private or public property, or that may degrade the quality of the water, without first obtaining a written permit for such placement from the Division.