City of Columbus

The City of Columbus has enacted a Stormwater Drainage Ordinance in order to protect existing natural stormwater resources, convey and control stormwater in a safe and responsible manner, and meet water quality goals. The City of Columbus is the permitting authority for all land disturbing activities and requires the land owner to maintain all on-site stormwater control facilities and all open space areas (e.g. parks or “green” areas) required by the approved stormwater control plan. The City of Columbus will only provide construction permits to projects that establish a plan to manage stormwater runoff occurring during the construction process. The City of Columbus, under the NPDES program, also has the authority to inspect properties for noncompliance and can issue a notice of violation (NOV) for any deficiency or infraction onsite. Property owners are responsible for the maintenance of any stormwater facilities or practices located on the property. The City of Columbus has the authority to inspect stormwater facilities and practices in order to ascertain that they properly maintained and functioning.

Illicit Discharge and Illegal Dumping Control

An illicit discharge is any discharge into the storm drainage system that is not composed entirely of stormwater. It is the policy of the City that no person shall:

  1. Construct, maintain, operate, and/or utilize any illicit connection,
  2. Cause or allow any prohibited discharge, and
  3. Act, cause, or permit any agent, employee, or independent contractor to construct, maintain, operate or utilize any illicit connection, or cause, allow or facilitate any prohibited discharge.

All development in the City shall be constructed in a manner that does not result in an illicit discharge into the City’s stormwater system. Discharges allowable under the terms of an NPDES permit are not considered illicit discharges.

Stormwater Control Facility Maintenance Responsibilities

It is essential that any approved stormwater control facility be properly maintained in order to assure its performance. The City will maintain eligible onsite detention basins and constructed wetlands designed to serve single-family residential developments. To be eligible for City maintenance services, the owner of the stormwater detention basin or wetland must:

  1. Have established vegetation within and around the facility, if applicable,
  2. Have designed and constructed the facility in accordance with City standards and proven by As-built Surveys,
  3. Have the facility in proper working order at the time the City accepts maintenance responsibilities, and
  4. Provide to the City specific, dedicated easement rights sufficient to perform required maintenance.

Onsite facilities, other than stormwater detention basins and constructed wetlands in single-family residential developments, shall be maintained by the Property Owner or, if applicable, a homeowners association. Onsite facilities constructed to serve privately-owned non-single family residential developments (i.e., multi family, commercial, industrial, etc.) shall be maintained by the Property Owner.

Stormwater Control Facility Maintenance Plan

A maintenance plan for privately-owned stormwater controls and for stormwater controls other than detention basins or constructed wetlands that are to be maintained by a homeowners association must be prepared and submitted for review and approval by the City for the Applicant during the Plan approval process. At a minimum, maintenance plans for stormwater controls shall include a method and frequency for the following activities:

  1. Inspection of all permanent structures,
  2. Debris/clogging control through appropriate removal and disposal,
  3. Vegetation control (mowing, harvesting, wetland plants),
  4. Erosion repair,
  5. Non-routine maintenance should include pollutant and sediment removal and the “rejuvenation” or replacement of filters and appropriate soils,
  6. Disposal of collected pollutants, sediments, and filter media in accordance with local, state and federal regulations, and
  7. Mosquito monitoring and abatement, encompassing inspections for conditions conducive to mosquito breeding, routine (e.g., vegetation control, debris and sediment removal) and non-routine (e.g., restoration of grade to eliminate ponding) activities to address these conditions, and conditions where the use of insecticides may be warranted.

Maintenance Inspection and Reporting Requirements

The Property Owner, its administrators, executors, successors, heirs or assigns shall maintain the stormwater control facility or facilities in good working condition acceptable to the City and in accordance with the schedule of long term maintenance activities provided in the approved stormwater control facility maintenance plan for the stormwater control facility or facilities. Maintained infrastructure shall include all pipes and channels built to convey stormwater to the facility, as well as all structures, improvements, and vegetation provided to control the quantity and quality of the stormwater from the facility. ”Maintain” is herein defined as good working condition so that these facilities are performing their design functions.

The purpose of maintenance inspections is to assure safe and proper functioning of the stormwater control facilities. The Property Owner shall perform periodic inspections of the stormwater control facility and its appurtenances at a frequency stipulated in the approved stormwater control facility maintenance plan. Inspections shall cover all elements for the stormwater control facility as defined in the stormwater control facility maintenance plan. Inspections shall include the completion of dated and signed inspection checklists provided in the stormwater control facility maintenance plan and the notation of all deficiencies observed during the inspection. The Property Owner shall maintain copies of complete dated and signed inspection checklists in a maintenance inspection log, along with recorded dates and descriptions of maintenance activities performed by the Property Owner to remedy the deficiencies observed during prior inspections. The maintenance inspection log shall be kept on the property and shall be made available to the City upon request. A copy of the Maintenance Inspection Log shall be submitted annually by December 31st of each year to the Division of Sewerage and Drainage.

Where applicable, language explaining the maintenance, inspection, and reporting responsibilities in accordance with approved stormwater control facility maintenance plans shall be provided on the plat and recorded with all deeds to the property.

City of Columbus Stormwater Documents

odnr soil & water resources

Stormwater Management Manual

MANAGEMENT PRACTICES Page: STRUCTURAL PRACTICES Page:
2.1 Reduction of Impervious Areas............. ….3 2.6 Water Quality Ponds............ ….27
2.2 Low Impact Development....................... ….5 2.7 Infiltration Trench................ ….41
2.3 Conservation Development.................... ….11 2.8 Sand & Organic Filter........... ….49
2.4 Wetland Setback...................................... ….15 2.9 Grass Filter............................. ….63
2.5 Stream Setback Area................................ ….21 2.10 Bioretention Area............... ….69
    2.11 Pervious Pavement............. ….85

 

STRUCTURAL PRACTICES Page:
4.1 Grassed Swale................... ….2
4.2 Level Spreader.................. ….8
4.3 Rock Lined Channel......... ….14
4.4 Rock Outlet Protection.... ….20
4.5 Diversion............................ ….26
4.6 Terrace................................ ….31
4.7 Subsurface Drainage....... ….38