Nonpoint Source (NPS) Watershed Projects : Interactive Map and Reporting

      NPS pollution generally results from land runoff, precipitation, atmospheric deposition, drainage, seepage or hydrologic modification. NPS pollution, unlike pollution from industrial and sewage treatment plants, comes from many diffuse sources. NPS pollution is caused by rainfall or snowmelt moving over and through the ground. As the runoff moves, it picks up and carries away natural and human-made pollutants, finally depositing them into lakes, rivers, wetlands, coastal waters and ground waters.

      This map presents all U.S. States and Territories that contain nonpoint source (NPS) watershed restoration projects. The data being represented in this mapping application are being pulled directly from the Section 319 Grants Reporting and Tracking System (GRTS). The NPS projects are summarized by state as well as various levels of watersheds: subbasins (8-digit HUCs) and subwatersheds (12-digit HUCs) at the local level. You can click on any U.S. State or Territory to drill deeper into these watersheds to find NPS projects, or you may selectively search by HUC12 code, HUC8 code, or by subwatershed name as search filters to the right of the map (as well as incorporating other data filters). For more information on the interactive map and its reporting tools, please expand the Instructions and Explanation of Features section below.

      Actions Across the Country

      Active Projects: 1,136   Historical Projects: 7,275

      Map

      Darker colors indicate more projects per HUC 4. Explore all projects.

      Water Quality Improvements

      Number of Success Stories: 143

      Most Recent Publications

      Year

      2025

      Arkansas

      Green Infrastructure Improves Water Quality and Changes Public Opinion in Stone Dam Creek Tributary

      2025

      District of Columbia

      DC's Branch Avenue Stream Restoration Project Reduces Erosion and Improves Habitat

      2024

      Alaska

      Managing Wildlife and Pet Waste Reduced Bacteria in Little Survival Creek

      2024

      District of Columbia

      Stormwater Retrofits in Rock Creek Park Reduce Sedimentation and Improve Habitat

      2024

      Idaho

      Changing Road Management Improved Little Sand Creek

      2024

      Iowa

      Easter Lake Revitalized by Community Partnerships

      2024

      Kentucky

      Triplett Creek Benefits from Decades of Watershed Planning and Stormwater Investment

      2024

      Michigan

      On-Line Master Rain Gardener Class Works to Normalize Residential BMPs in the Middle Huron River Watershed

      2023

      Alaska

      Community Efforts Improve Jordan Creek

      2023

      District of Columbia

      Neighborhood Residents Lead Water Quality Improvement Project to Restore Spring Valley Run

      2023

      Maryland

      Baltimore County Project Restores Stream Channel on Roland Run

      2023

      Nevada

      Nevada Lake Tahoe TMDL 319(h) Investments: Ten Years of Meaningful Progress

      2023

      North Carolina

      Stormwater Reductions Lead to Improving Water Quality in the Shellfishing Waters of Hewlett's Creek

      2023

      South Carolina

      Ecological Restoration by Daylighting a Smith Branch Tributary

      2022

      Delaware

      Controlling Nonpoint Source Pollution from Agricultural Areas Restores Tappahanna Ditch

      2022

      Florida

      Stormwater Retrofit Projects Help Reduce Nutrient Pollution in Lake Conine

      2022

      Kentucky

      Watershed Planning and Partnerships Lead to Gunpowder Creek Delisting

      2022

      Maryland

      Baltimore County Stream Restoration Project Helps Restore Scotts Level Branch to its Natural State

      2022

      Minnesota

      Controlling Sediment and Phosphorus Sources Restores Lake George

      2022

      New Jersey

      Stormwater Projects Improve Water Quality in the Lower Section of the Raritan River

      2022

      North Carolina

      Basinwide Efforts Improve the McDowell Creek Watershed

      2022

      Tennessee

      Riparian Restoration Supports McCutcheon Creek Recovery

      2022

      Texas

      Implementing Best Management Practices and Low Impact Development Improves Water Quality in the Upper San Antonio River

      2021

      Delaware

      Agricultural Best Management Practices Reduce Bacteria Levels in Iron Branch

      2021

      District of Columbia

      Regenerative Stream Channel Design and Bioretention Retrofit Restore Springhouse Run

      2021

      Florida

      Modular Wetland Project Improves Bay Lake Water Quality

      2021

      Georgia

      Ecological Restoration of Degraded Landscapes Improves Water Quality in Cane Creek

      2021

      Massachusetts

      Toxic Algal Blooms Reduced in Lake Attitash

      2021

      New Jersey

      Conducting Cover Crop Aerial Seeding and Watershed Education Improved Water Quality in the Neshanic River

      2021

      Northern Mariana Islands

      How NPS Monitoring Efforts Informed Improvements to North Susupe's Water Quality

      2021

      Oregon

      Managing Stormwater and Restoring Streams and Riparian Areas Improved Columbia Slough

      2021

      Rhode Island

      Addressing Failing Septic Systems and Controlling Stormwater Runoff Reduced Bacteria in the Pettaquamscutt River

      2021

      South Carolina

      Improving Shellfish Waters through Multi-Phase Implementation in May River, SC

      2021

      Texas

      Low Impact Development, Outreach, and Sewer System Infrastructure Contribute to Improved Water Quality in the Brownsville Ship Channel

      2021

      Texas

      Implementing Conservation Practices and Conducting Watershed Outreach Improved Water Quality in Sulphur Creek

      2021

      Utah

      East Canyon Creek Projects Improve Water Quality

      2020

      Alabama

      Joes Branch Restoration: Illustrating a Model Watershed Approach

      2020

      California

      Watershed Restoration Efforts Improve Revegetation, Erosion Control and Sediment Loads in Bear Creek

      2020

      Florida

      Kapok Restorative Wetland Project Assists in Improvement of Dissolved Oxygen in Alligator Creek

      2020

      Florida

      Ecosystem Restoration Project Improves Clam Bayou Drain

      2020

      Georgia

      Septic System Replacements Leading to Water Quality Improvements in Horsepen Creek

      2020

      Georgia

      Neighborhood-Scale Green Infrastructure Improves Water Quality in Marsh Creek in the City of Sandy Springs

      2020

      Hawaii

      Watershed Restoration Projects Improve He'eia Stream

      2020

      Kentucky

      Watershed Planning and Collaboration Efforts Reduced Sedimentation in Floyds Fork

      2020

      Minnesota

      Restoration Efforts Improve First Fulda Lake

      2020

      Missouri

      Stream Ecological Restoration Efforts Improve Water Quality in South Creek

      2020

      Ohio

      Baldwin Run Removed from Impaired Waters List after Channel and Streambank Restoration

      2020

      South Carolina

      Urban Retrofit Leads to Reopening Shellfish Harvesting Waters in Battery Creek

      2020

      Texas

      Local Partnerships and Community Involvement in Growing City Leads to Improved Water Quality in the Upper Cibolo Creek

      2020

      Wisconsin

      Stream Restoration Improves Pike River in Petrifying Springs Park

      2020

      Wyoming

      Livestock Operators Restored a Segment of Popo Agie River

      2019

      Alabama

      Community Partnerships Restore the Water Quality of Mill Creek

      2019

      Minnesota

      Watershed and In-Lake Treatment Approaches Improve Bryant Lake Water Quality

      2019

      Missouri

      Planning and Partnerships Improve Water Quality in McCoy Creek

      2019

      New Jersey

      Implementing Green Infrastructure Projects Improved Water Quality in the Rahway River

      2019

      North Carolina

      Countering the Effects of Rapid Urbanization on Smith Creek

      2019

      South Carolina

      Watershed Project Leads to Cleaner Water in Smith Swamp

      2019

      Texas

      Urban and Rural Nonpoint Source Best Management Practices Improve Water Quality in the Upper San Antonio River

      2018

      Georgia

      Municipal Total Maximum Daily Load Implementation Program Helps Restore Upper Butler Creek

      2018

      Minnesota

      Community’s Commitment to Installing Management Practices Restores Mitchell Lake

      2018

      Minnesota

      Implementation Improves Water Quality in Lake Shaokatan

      2018

      New Jersey

      Green Infrastructure and Restoration Projects Improve Water Quality in the Cooper River

      2018

      North Carolina

      Projects Reduce Impacts of Agriculture and Stormwater on Lower Mud Creek

      2018

      Tennessee

      Habitat Restoration and Agricultural Best Management Practices Aid in Returning Rutherford Creek to Fully Supporting Status

      2018

      Washington

      Kitsap County’s Pollution Identification and Correction Program Improves Water Quality in Dogfish Creek

      2017

      Connecticut

      Intensive Track-Down Work Benefits Water Quality in the Norwalk River

      2017

      District of Columbia

      Stream Restoration Effort in Linnean Park Improves Broad Branch Tributary

      2017

      New Jersey

      Ramanessin Brook Restoration Projects Improve the Navesink River

      2017

      Rhode Island

      Installing Infiltrating Catch Basins Helps Reduce Bacteria in Greenwich Cove

      2017

      Virginia

      Water Quality Improved after Implementing Best Management Practices in Upper Robinson River Watershed, Madison County, Virginia

      2016

      Massachusetts

      Eliminating Stormwater Runoff Restores Shellfishing Area in Fisherman's Cove - Butler Cove

      2016

      Massachusetts

      Installing Rain Gardens, Permeable Pavers and a Pocket Wetland Restores Recreational Uses to Sunset Lake

      2016

      Minnesota

      Coordinated Efforts Reduce Polluted Stormwater Runoff, Improving Water Quality in Lower Twin and Ryan Lakes

      2016

      Nebraska

      Renovation of Big Springs Community Lake Restores Beneficial Use

      2016

      New Jersey

      Stormwater BMP Project Improves Water Quality at Wanaque River/ Greenwood Lake

      2016

      Texas

      Best Management Practices, Infrastructure Improvements, and Outreach Improve the Guadalupe River Above Canyon Lake

      2015

      Delaware

      Implementing Agricultural Best Management Practices Reduced Bacteria Levels in Coursey Pond

      2015

      Indiana

      Watershed Restoration Work Improved a Section of Indian Creek

      2015

      Michigan

      Implementing Stormwater Management Practices Reduces Phosphorus and Sediment Loads to Arcadia Creek

      2015

      Michigan

      Replacing Culverts on Osborn Creek Improves Stream Channel Stability

      2015

      Pennsylvania

      Restoring Tributaries and Shoreline Areas While Managing Urban Runoff Improves Harveys Lake

      2015

      Texas

      Stormwater Best Management Practices Improve Water Quality for Aquatic Life Use in the Concho River (Segment 1421)

      2014

      Minnesota

      Coordinated Efforts Improve Water Quality in Beaver, Carver, Keller and Battle Creek Lakes

      2014

      New Jersey

      Restoring Riparian Areas and Enhancing Stormwater Manageemnt Improved Water Quality in the Lower Pequest River

      2013

      Connecticut

      Watershed Approach Improves River

      2013

      Delaware

      Implementing Various Pollution Control and Restoration Practices Improves Water Quality in Noxontown Pond

      2013

      Illinois

      Installing Best Management Practices Reduces Nutrients in Watershed

      2013

      Kentucky

      Watershed Restoration Efforts Improve Water Quality in the Licking River

      2013

      Maine

      Controlling Erosion Helps Restore Lake

      2013

      Maryland

      Implementing Best Management Practices Reduces Nitrogen in Two Corsica River Tributaries

      2013

      Massachusetts

      Reducing Nutrients from Cranberry Bogs Improves Pond

      2013

      Minnesota

      Implementing Best Management Practices Improves Water Quality in Watershed

      2012

      California

      Reducing Pesticide Use Contributes to Restoration of San Diego Creek

      2012

      Maryland

      Stream Restoration Reduces Peak Storm Flow and Improves Aquatic Life in Sligo Creek

      2012

      Oregon

      Watershed Approach Reduces Pollution in the Tualatin River

      2011

      Maine

      Watershed Conservation Practices Restore Duckpuddle Pond

      2011

      Maryland

      Restoring Stream Improves Water Quality and Fish Community Health

      2011

      Nebraska

      Community-Based Efforts Decrease Algae Toxins in Carter Lake

      2011

      New Hampshire

      Stakeholders Cooperate to Reduce Sediment Loading and Restore Recreational Uses in Cains Pond

      2011

      New York

      Implementing Agricultural and Recreational Best Management Practices Restores Rudd Pond

      2011

      Oregon

      Stakeholders' Watershed Approach Reduces Phosphorus Levels in Bear Creek

      2011

      Texas

      Educating Residents and Collecting Household Hazardous Waste Items Reduces Legacy Pollutants in Fosdic Lake

      2011

      Vermont

      Ski Resort Improves Stormwater Management and Restores Rice Brook

      2010

      Illinois

      Erosion Control Projects Reduce Manganese Levels in Charleston Side Channel Reservoir

      2010

      Illinois

      Best Management Practices Reduce Siltation from Urban Runoff

      2010

      Maine

      Community-based Erosion Control Efforts Stop Water Quality Decline

      2010

      Maryland

      Protecting Riparian Areas Yields In-Stream Improvement in First Year

      2009

      California

      Watershed Restoration Efforts Improve Dissolved Oxygen Levels

      2009

      Idaho

      Forestry, Agricultural and Urban Stormwater Best Management Practices Improve Reservoir's Water Quality

      2009

      Kansas

      Watershed Management Improves Lake Water Quality

      2009

      Missouri

      Implementing Best Management Practices and Education Efforts Restores Lake

      2009

      New Hampshire

      Stakeholders Cooperate to Control Sediment Inputs and Restore Navigability

      2009

      New Hampshire

      Community-led Sediment Control Projects Restore Recreational Uses to Lake and Beach

      2009

      Oklahoma

      National NPS Monitoring Project Reduces Nutrient Loads, Decreases Streambank Erosion, and Improves Biological Communities

      2008

      Alaska

      Salmon on the Rocks: Sediment Controls Improve Water Quality

      2008

      Illinois

      Stabilizing Streambanks and Restoring Wetlands Improves Habitat in Addison Creek

      2008

      Maine

      Local Groups Key to Mousam Lake Restoration

      2008

      Michigan

      Stream Stabilization Projects Put Carrier Creek on the Path to Recovery

      2008

      Michigan

      Best Management Practices Control Urban Nonpoint Source Pollution

      2008

      Nebraska

      Reservoir Restoration and Watershed Treatment Efforts Improve Water Quality

      2007

      Massachusetts

      As Salt Water Returns to Winsegansett Marsh, So Does Natural Vegetation

      2007

      Mississippi

      Lake Hazle Recovers from Development Impairments

      2007

      North Carolina

      Watershed Partnership Pays Off for Brasstown Creek

      2007

      Oklahoma

      BMPs Result in Significant Reduction of Bacteria and Phosphorus Loading

      2007

      Pennsylvania

      Stream Restoration and Dam Removal Restore Waterbodies

      2007

      Vermont

      Area Residents Keep Shelburne Beach Open Unnamed Tributary to Shelburne Beach, VT

      2007

      Vermont

      Ski Resort Controls Erosion and Sedimentation, Restores Two Streams

      2007

      Vermont

      Cleanup of Leaked Petroleum Restores Whetstone Brook

      2007

      Virginia

      Conservation Stewardship Puts Muddy Creek and Lower Dry River Watersheds on Path to Recovery

      2007

      West Virginia

      Upper Buckhannon River Moves toward Recovery from Metals Impairments

      2006

      Connecticut

      Menu of Measures is a Recipe for Success

      2006

      Minnesota

      Nutrient Concentrations in the Minneapolis Chain of Lakes Nearly Returned to Presettlement Conditions

      2006

      Nevada

      Best Management Practices Drastically Reduce Sediment and Restore Water Quality in Las Vegas Wash

      2006

      New Hampshire

      Project Improves Water Quality and Saves Eroding Farmland

      2006

      Vermont

      Stream Restored through Improved Agricultural Practices and Erosion Control Work

      2006

      Washington

      Dungeness River Tributary Achieves Bacteria Target Levels at Several Monitoring Sites

      2005

      District of Columbia

      Oil and Grease Water Quality Goals Achieved in DC Area Stream

      2005

      Iowa

      Nine Eagles Lake Overcomes Siltation and Turbidity Problems

      2005

      Maryland

      Collaborative Planning Leads to Community-Wide Solutions

      2005

      Minnesota

      Phosphorus Reductions Achieved in Sauk River Chain of Lakes

      2005

      Nebraska

      Innovative System Clears Up Sediment Problem in Nebraska Lake

      2005

      Tennessee

      Best Management Practices Reduce Pathogens in Cane Creek

      2005

      Virginia

      Virginia Holston River Watershed: Concerted Watershed Effort Improves Several Streams
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