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# Factors Affecting Water Quality

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As the States implement practices to reduce nutrient and sediment to improve water quality, they want to understand the success of their efforts. The USGS conducts studies on the relation among land change, management practices, and changes in nutrients and sediment. The findings are used to help assess progress toward the Chesapeake Bay Program (CBP) water-quality goal and make needed adjustments

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April 12, 2024

####                 Phosphorus in the Susquehanna River may be tied to legacy sediment and changing pH              

Water Resources Mission Area, Chesapeake Bay Activities, Pennsylvania Water Science Center

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April 12, 2024

####   Phosphorus in the Susquehanna River may be tied to legacy sediment and changing pH

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February 27, 2024

####                 Geospatial Analyses and Applications Core Technology Team              

Ecosystems Mission Area, Contaminant Biology, Environmental Health Program, Toxic Substances Hydrology, Chesapeake Bay Activities

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February 27, 2024

####   Geospatial Analyses and Applications Core Technology Team

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September 28, 2023

####                 USGS Publications Summarize Water-Quality Trends and Drivers in Urban Streams After 10 Years of Monitoring in Fairfax County, Virginia              

Chesapeake Bay Activities, Virginia and West Virginia Water Science Center

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September 28, 2023

####   USGS Publications Summarize Water-Quality Trends and Drivers in Urban Streams After 10 Years of Monitoring in Fairfax County, Virginia

Learn More

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August 30, 2023

####                 Floodplains provide millions of dollars in benefits every year to people in the Chesapeake Bay and Delaware River watersheds              

Chesapeake Bay Activities, South Atlantic Water Science Center (SAWSC)

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August 30, 2023

####   Floodplains provide millions of dollars in benefits every year to people in the Chesapeake Bay and Delaware River watersheds

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August 4, 2023

####                 Pennsylvania and the Chesapeake Bay Watershed              

Chesapeake Bay Activities, Pennsylvania Water Science Center

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August 4, 2023

####   Pennsylvania and the Chesapeake Bay Watershed

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May 25, 2023

####                 New study evaluates effects of agricultural conservation practices on nitrogen in streams of the Chesapeake Bay              

Chesapeake Bay Activities, Maryland-Delaware-D.C. Water Science Center

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May 25, 2023

####   New study evaluates effects of agricultural conservation practices on nitrogen in streams of the Chesapeake Bay

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May 3, 2023

####                 Observed monitoring data and predictive modelling help understand ongoing and future vulnerability of Chesapeake Bay watershed stream fish communities to climate and land-use change              

Chesapeake Bay Activities, Eastern Ecological Science Center

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May 3, 2023

####   Observed monitoring data and predictive modelling help understand ongoing and future vulnerability of Chesapeake Bay watershed stream fish communities to climate and land-use change

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April 5, 2023

####                 Communicating stream fish vulnerability to climate change              

Chesapeake Bay Activities, Community for Data Integration (CDI)

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April 5, 2023

####   Communicating stream fish vulnerability to climate change

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March 23, 2023

####                 Improving Understanding and Coordination of Science Activities for Per- and Polyfluoroalkyl Substances (PFAS) in the Chesapeake Bay Watershed              

Chesapeake Bay Activities, New Jersey Water Science Center, Pennsylvania Water Science Center

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March 23, 2023

####   Improving Understanding and Coordination of Science Activities for Per- and Polyfluoroalkyl Substances (PFAS) in the Chesapeake Bay Watershed

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March 3, 2023

####                 Sediment Response of Stream Restoration Practices, Turtle Creek, Union County, Pennsylvania              

Chesapeake Bay Activities, Pennsylvania Water Science Center

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March 3, 2023

####   Sediment Response of Stream Restoration Practices, Turtle Creek, Union County, Pennsylvania

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February 15, 2023

####                 Integrated Assessments of Potential Risks to Aquatic Organisms and Public Water Supply from Wastewater-Derived Chemical Mixtures in the Chesapeake Bay Watershed              

Chesapeake Bay Activities, Virginia and West Virginia Water Science Center

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February 15, 2023

####   Integrated Assessments of Potential Risks to Aquatic Organisms and Public Water Supply from Wastewater-Derived Chemical Mixtures in the Chesapeake Bay Watershed

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December 21, 2022

####                 Agricultural best management practices can improve water quality and conditions for fisheries in the Chesapeake Bay Watershed              

Environmental Health Program, Chesapeake Bay Activities, Eastern Ecological Science Center

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December 21, 2022

####   Agricultural best management practices can improve water quality and conditions for fisheries in the Chesapeake Bay Watershed

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