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  2. Polluted Runoff: Nonpoint Source (NPS) Pollution

Nonpoint Source Monitoring Interactive Guide

This interactive document offers a high-level overview of USEPA’s NPS monitoring guidebook, Monitoring and Evaluating Nonpoint Source Watershed Projects.

The interactivity offers a simplified approach to navigate to specific topics and includes links to to detailed chapters of the guidebook.  The guidebook is intended for those who develop and implement monitoring plans for watershed projects, or evaluate the technical merits of nonpoint source (NPS) pollution monitoring proposals they might sponsor. 

  An Interactive Guide to Nonpoint Source Monitoring (pdf) (49.59 MB, February 2022, B-22_001)

An Interactive Guide to Nonpoint Source Monitoring - 508 Compliant Content (pdf) (4.13 MB, February 2022)

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 to ask a question, provide feedback, or report a problem.
Last updated on February 27, 2025
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