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Water Quality

Because so much of our land is devoted to agriculture, farmers have a vital role in protecting water quality. USDA has programs and practices that help farmers improve water quality while gaining efficiencies and reducing costs.

Improving Water Quality on Your Land

Fight Erosion

When soil stays in the field, it not only provides better soil for crop production, but also reduces sediment entering the water table.

Erosion fighting practices include:

  • Cover crops
  • No till or reduced till
  • Crop rotation

Enhance Management

Management of use of fertilizers and pesticides to keep them on the field or pasture can reduce costs as well as potential for loss.

Water friendly management practices include:

  • Integrated pest management
  • Nutrient management
  • Irrigation water management

Improve Filtration

In field practice can help reduce runoff, but filtering the runoff to remove sediment, chemicals, and waste can improve downstream water quality.

Practices that help filter runoff include:

  • Filter strip
  • Riparian forest buffer
  • Bioreactor

Manage Animal Waste

Preventing animal waste from entering water sources is a key way to protect water quality.

Practices that manage animal waste include:

  • Prescribed grazing
  • Waste storage
  • Waste management

Focus on Water Quality

National Water Quality Initiative

NWQI is USDA’s premiere water quality initiative. It accelerates on-farm conservation investments focused on improving water quality where it is most needed.

Since 2012, NRCS has worked with more than 3,650 producers to adopt conservation practices on more than 825,000 acres in priority watersheds through NWQI. To date, at least 11 impaired water bodies have been improved and subsequently scheduled for de-listing or otherwise removed from NWQI due to successful water quality improvements.

Learn more about watersheds that are part of NWQI’s current efforts.

Mississippi River Basin Healthy Watersheds Initiative

Launched in 2009, the 12-state MRBI helps landowners sustain America’s natural resources through voluntary conservation. States within the Mississippi River Basin have developed nutrient reduction strategies to minimize the contributions of nitrogen and phosphorus to surface waters within the basin, and ultimately to the Gulf of Mexico.

MRBI uses a small watershed approach to support the states’ reduction strategies. Avoiding, controlling and trapping practices are implemented to reduce the amount of nutrients flowing from agricultural land into waterways and to improve the resiliency of working lands. These targeted investments have increased the adoption of critical water quality conservation practices, such as cover crops, no-till, residue management, grassed waterways and nutrient management by over 30%

Great Lake Restoration Initiative

GLRI helps NRCS accelerate conservation efforts on private lands located in targeted watersheds throughout the Great Lakes region. Through GLRI, NRCS works with farmers and landowners to combat invasive species, protect watersheds and shorelines from non-point source pollution and restore wetlands and other habitat areas.

Practices implemented by farmers working in partnership with NRCS through GLRI have reduced phosphorus by over 1.1 million pounds in target areas since 2010.

Additional Approaches

In addition to these initiatives, NRCS offers edge-of-field monitoring, which allows producers to measure the effects of conservation work on water quality. This helps farmers make informed decisions about efficiency, economic impacts, and yields. NRCS also supports market-based approaches to improve water quality.

Water Quality Practices for Working Lands

Cover Crops

The roots of cover crops make channels in the soil that improves its ability to take in water. Cover crops also build soil organic matter, hold soil in place that might otherwise erode, and feed soil organisms that provide valuable nutrients to cash crops during the traditional growing season.

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Grassed Waterway

Grassed Waterway is a way of repurposing marginal lands to improve filtration of runoff and reduce erosion from farm land. It has the added benefit of creating riparian habitat.

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No Till

We’ve learned that most operations do not need heavy tillage – or often any tillage at all – to produce healthy crops. Minimizing tillage can reduce soil erosion across your operation while saving time and money. Read the USDA blog story: Saving Money, Time and Soil: The Economics of No-Till Farming.

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Find Your Local Service Center

We are committed to delivering USDA services to America’s farmers and ranchers while taking safety measures in response to COVID-19. While employees continue to staff our Service Centers, some are only available for phone appointments at this time. You can learn the status of your service center through this tool. Learn more at farmers.gov/coronavirus.

USDA Service Centers are locations where you can connect with Farm Service Agency, Natural Resources Conservation Service, or Rural Development employees for your business needs. Enter your state and county below to find your local service center and agency offices. If this locator does not work in your browser, please visit offices.usda.gov.

Visit the Risk Management Agency website to find a regional or compliance office or to find an insurance agent near you.