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  1. Home
  2. Polluted Runoff: Nonpoint Source (NPS) Pollution

Urban Runoff: Model Ordinances for Open Space Development

  • Return to Urban Runoff: Ordinances

The model open space ordinance contains language that fosters development that is substantially consistent with many local zoning standards yet allows for modifications from the original standards to ensure appropriate, fair, and consistent decision making. The model ordinance sets guidelines for management of open space and the amount of open space required on a site, but it is not intended to be a "one size fits all" document.

  • Open Space Development Model Ordinance (pdf) (51.23 KB)
  • Open Space Ordinance from Calvert County, MD (pdf) (113.49 KB)
    An example of a mandatory open space ordinance.
  • Land Preservation District Model Zoning from Montgomery County, PA (pdf) (32.84 KB)
    This ordinance would also require the preservation of open space certain districts.
  • Open Space Ordinance from Hamburg Township, MI (pdf) (45.45 KB)
    This ordinance incorporates commercial land uses (e.g., mixed use) for projects of a certain size, and provides an example of the application procedure for one community.

Polluted Runoff: Nonpoint Source (NPS) Pollution

  • Basic Information
  • Types of NPS Pollution
    • Agriculture
    • Abandoned Mine Drainage
    • Forestry
    • Hydromodification and Habitat Alteration
    • Marinas and Boating
    • Highways and Bridges
    • Urban Areas
    • Wetland/Riparian Management
  • Success Stories
  • Using a Watershed Approach
  • Webinars
  • Technical Guidance and Tools
  • Nonpoint Source News-Notes
  • NPSINFO Discussion Forum
  • National NPS Monitoring Program
  • Coastal Zone Act Reauthorization Amendments (CZARA)
  • Grants Reporting and Tracking System (GRTS)
  • 319 Grant program for States and Territories
  • Tribal 319 Grant Program
  • Contacts for NPS Programs
  • Resources for Students and Educators
    • Darby Duck, the Aquatic Crusader
    • Word Search Puzzle
    • What's Wrong with This Picture?
Contact Us about Nonpoint Source Pollution
Contact Us about Nonpoint Source Pollution to ask a question, provide feedback, or report a problem.
Last updated on February 27, 2025
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