Storm Water

2022 Draft MS4 Annual Report 

This draft release is an opportunity for public involvement and input.   Please review the City of Bentonville 2022 Draft Municipal Separate Storm Sewer System Annual Report. Email all comments to the City Stormwater Coordinator:

NWA Pre-Construction Stormwater Education

This pre-construction stormwater education program is designed specifically for contractors, developers, and persons responsible for inspecting and maintaining stormwater controls on a construction site to be shared during pre-construction meetings.

All LSD/PP sites are required to have a SWPPP On-Site Contact.  This person must obtain a "PARTICIPATED IN TRAINING" card.  The link below will take you to the training materials and quiz.

NWA Pre-Construction Stormwater Education Program

SWPPP Pre-Construction Stormwater Training Program


The objectives of the Stormwater Management Program are to improve the quality of stormwater in local receiving waters, to provide and promote education about stormwater issues and concerns, to evaluate design, repair, replace, and improve stormwater facilities and conveyances, and to inspect drainage systems throughout the city. In addition, the Engineering Department and the Stormwater Management Program supports Community Development by providing technical specifications, advice, and expertise to developers and citizens regarding stormwater management and drainage design criteria.

Stormwater and Land Disturbance

The City inspects land disturbing activities that have the potential to release pollutants; particularly onto adjacent properties or into surface waters. Developers must follow Federal, state, and local required stormwater regulations. Best Management Practices must be installed and maintained by qualified personnel. As applicable, the Operator/Owner must follow the Stormwater Pollution Prevention Plan (SWPPP) for sites over one acre in size. Self-inspections must take place according to regulatory requirements.

If planning to disturb more than one acre of land, then a Stormwater Pollution Prevention Plan is required. Please refer to the Arkansas Department of Environmental Quality Website for state permitting procedures. Grading only permits require a complete erosion control plan. Implementing Best Management Practices are required. Self-inspections are to take place once a week or every two weeks and after every .25” precipitation event. Tracking onto city streets is unacceptable. Upon completion of the project, the drainage system must be maintained.

Ordinance 2006-167 Goals:

  • To maintain and improve the quality of water impacted by the storm drainage
    system within the City of Bentonville.
  • To prevent the discharge of contaminated stormwater runoff and illicit discharges
    from industrial, commercial, residential, and construction sites into the storm
    drainage system within the City of Bentonville.
  • To promote public awareness of the hazards involved in the improper discharge
    of trash, yard waste, lawn chemicals, pet waste, wastewater, oil, petroleum
    products, cleaning products, paint products, hazardous waste, sediment and
    other pollutants into the storm drainage system.
  • To encourage recycling of used motor oil and safe disposal of other hazardous
    consumer products.
  • To facilitate compliance with state and federal standards and permits issued by
    ADEQ to responsible parties of construction sites within the City.
  • To enable the City to comply with all federal and state laws and regulations
    applicable to the National Pollutant Discharge Elimination System (NPDES)
    permitting requirements for storm water discharges.

 Municipal Separate Storm Sewer System (MS4)

The Bentonville Stormwater Management Plan (Stormwater Plan) has been developed to provide policy and management guidance for activities affecting stormwater throughout the City of Bentonville. It is intended to help the City fulfill certain State and Federal water quality requirements, and to meet local water resources management objectives. Through the implementation of the policies and management practices embodied in the Stormwater Plan overtime, Bentonville hopes to preserve urban stormwater quality, and to develop and preserve the urban drainage infrastructure in a manner that meets the community’s needs for years to come.

Minimum Control Measures:

  • Public Education/Outreach
  • Public Participation/Involvement
  • Illicit Discharge Detection and Elimination
  • Construction Site Runoff Control
  • Post Construction Runoff Control
  • Pollution Prevention/Good Housekeeping