Title 15 - Public Improvements

15.10 Stormwater Management Program - Standards and Permitting

15.10.500 Maintenance.

All public storm sewer systems constructed in conformance with the Standards and located within public drainage easements shall be maintained by the City upon final inspection and acceptance of the project. For a period of two years after the final inspection, the contractor shall be responsible for repair of all work he was authorized to perform by the Public Improvement Permit, as defined in Section 13.10.010, or other permit type requiring a maintenance bond. The contractor shall further be responsible, for two years from the final inspection, for the repair of streets, roadways, curbs, sidewalks or other surface facilities due to backfill settlement above the underground conduits.

Privately constructed stormwater treatment facilities as required under 16.210 shall be privately maintained even when they receive drainage from public storm drainage facilities. Generally, public maintenance shall include the public storm sewer pipe system, end section and any required energy dissipation from the pipe system. For stormwater treatment facilities that discharge to a public storm drainage facility, public maintenance shall begin at the public storm sewer inlet. Maintenance of such private stormwater treatment facilities is intended to include cleanup and removal of silt, trash, debris, spills and other pollutants conveyed into the private facility by the public facility.

Compliance with 7.26, providing for property maintenance, shall be required as applicable.

  1. A.
    Swales -- Engineered swales, as defined by the Standards, constructed in residential subdivisions are the responsibility of the property owner to preserve and maintain. It is the responsibility of the property owner to install and maintain the grades to convey stormwater in accordance with the approved grading and building site plans. Prior to issuance of a temporary certificate of occupancy, the grades shall be inspected by the City. If any form of certificate of occupancy is issued prior to the City's approval of the grading, the permit applicant shall complete the grading within 60 days.
  2. B.
    Stormwater Detention Facilities -- Stormwater detention facilities are most often private stormwater management facilities constructed to the Standards. Maintenance of detention facilities shall be the responsibility of the property owner and shall include: (1) debris removal and cleaning; (2) cutting of vegetation; (3) repair of erosion; (4) removal of silt; and (5) maintenance of structural facilities not located in a public drainage easement.

Upon completion of construction and after final stabilization, the owner of each detention basin shall furnish certification by a licensed professional engineer to the City Engineer that the detention basin has full storage capacity, all inlet and outlet structures are fully functional, all inlet and outlet structures are fully functional, and the basin is vegetated in conformance with the approved detention plans. Subsequently, maintenance certifications by a licensed professional engineer shall be submitted on or before May 1 the first full year following initial certification and every two years thereafter.

(History: Ord. SWM-2853 §5, 2010; SWM-2668 §6, 2008; SWM-2505 §1, 2004; SDR-2192 §38, 2000; SDR-1275 §32, 84; SD-1234 §21, 83; SDR-349 §8-5, 65)

Effective on: 1/1/1901