Skip to main content
U.S. flag

An official website of the United States government

Here’s how you know

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

HTTPS

Secure .gov websites use HTTPS
A lock (LockA locked padlock) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

    • Environmental Topics
    • Air
    • Bed Bugs
    • Cancer
    • Chemicals, Toxics, and Pesticide
    • Emergency Response
    • Environmental Information by Location
    • Health
    • Land, Waste, and Cleanup
    • Lead
    • Mold
    • Radon
    • Research
    • Science Topics
    • Water Topics
    • A-Z Topic Index
    • Laws & Regulations
    • By Business Sector
    • By Topic
    • Compliance
    • Enforcement
    • Laws and Executive Orders
    • Regulations
    • Report a Violation
    • Environmental Violations
    • Fraud, Waste or Abuse
    • About EPA
    • Our Mission and What We Do
    • Headquarters Offices
    • Regional Offices
    • Labs and Research Centers
    • Planning, Budget, and Results
    • Organization Chart
    • EPA History

Breadcrumb

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

Practitioners Guide to NWQI Ag Water Quality Projects

This document provides a resource for agency partners involved in implementing the NWQI, describing the history and structure of the initiative, its focus on accelerating water quality progress, and the roles of agency staff and stakeholders in NWQI projects.

  • Planning and Implementing Agricultural Water Quality Projects Through the National Water Quality Initiative: A Practitioners Guide (pdf) (1.18 MB, June 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 to ask a question, provide feedback, or report a problem.
Last updated on July 25, 2024
  • Assistance
  • Spanish
  • Arabic
  • Chinese (simplified)
  • Chinese (traditional)
  • French
  • Haitian Creole
  • Korean
  • Portuguese
  • Russian
  • Tagalog
  • Vietnamese
United States Environmental Protection Agency

Discover.

  • Accessibility Statement
  • Budget & Performance
  • Contracting
  • EPA www Web Snapshot
  • Grants
  • No FEAR Act Data
  • Plain Writing
  • Privacy
  • Privacy and Security Notice

Connect.

  • Data
  • Inspector General
  • Jobs
  • Newsroom
  • Regulations.gov
  • Subscribe
  • USA.gov
  • White House

Ask.

  • Contact EPA
  • EPA Disclaimers
  • Hotlines
  • FOIA Requests
  • Frequent Questions
  • Site Feedback

Follow.