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  2. Polluted Runoff: Nonpoint Source (NPS) Pollution

Green Streets Handbook

This handbook is intended to help state and local transportation agencies, municipal officials, designers, stakeholders and others to select, design and implement site design strategies and green infrastructure practices for roads, alleys and parking lots. The document provides background information on street and road typologies and offers a programmatic framework to use when identifying areas that can be initially designed or later retrofitted with green infrastructure practices or systems.

  • Green Streets Handbook (pdf) (9.66 MB, 2021)

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 October 17, 2025
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