(1)
Unlawful Obstructions. It is unlawful for any person to:
(a)
Obstruct the flow of water in the storm sewer system;
(b)
Contribute to the obstruction of the flow of water in the storm sewer system;
(c)
Cover or obstruct any drain inlet;
(d)
Operate any vehicle so as to track or drop mud, stones, dirt, concrete, gravel, sand, bark or other similar material onto public streets. It shall be the duty of the driver of a vehicle who unlawfully drops or deposits mud, stones, concrete, gravel, sand, bark or other similar material or permits the load or any portion thereof to be dropped or deposited upon any street or other public place to immediately remove the same or cause it to be removed. It shall be the duty of the driver of any vehicle to clean the tires and vehicle undercarriage of dirt or debris before the vehicle enters onto a paved surface public right of way;
(e)
Discharge waste concrete or concrete truck rinse water except into pre-approved discharge facilities or designated areas. Dumping of excess concrete shall not be allowed; or
(f)
Stockpile construction or yard improvement materials or debris in the street or in the gutter unless being stored in a self-contained storage unit that has been pre-approved by the Public Works Department. This includes, but is not limited to, ramps being constructed for temporary access across the existing curb and gutter; stockpiling of topsoil or other fill material; stockpiling of sand, gravel, landscape rock, bark, mulch or any other material that may be considered a source of pollution to the storm water system. An exception to this prohibition must be expressly granted to the applicant in the approved land disturbance permit. All other persons or entities, where a land disturbance permit is not required, desiring to create a temporary ramp for construction, landscape, or other purposes, may use a gravel ramp of one inch (1") gravel or larger, in combination with a mechanism approved by the City Engineer for seeing that the gravel does not enter into the City's storm drain system. The ramp shall be removed immediately after the development activity ceases or upon notice from the City to do so, whichever occurs first.
(2)
Exceptions. The following obstructions are exempt from the prohibitions of this section:
(a)
Street and/or storm sewer improvement projects authorized by the City;
(b)
Flood control and prevention activities performed by the City;
(c)
Obstructions approved by the City as part of a site's storm water drainage plan; and
(d)
Obstructions occurring during clean-up periods established by the City, provided that the materials are placed according to City directions and do not obstruct drain inlets.
(3)
Owners shall be given a reasonable time, not to exceed forty-eight (48) hours – unless written approval with conditions for a longer period of time is granted by the City, in order to clean up any obstructions under subparagraph (1)(d) and (1)(f) that are caused by a commercial entity. This Section shall not limit or prohibit the City's enforcement of all available remedies and enforcement powers against any commercial entity for obstructions caused under subsections (1)(d) and (1)(f).