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Collecting a water-quality sample from the bridge at Mattawoman Creek.

Water Quality Monitoring and Modeling (WQMM) Team

Studies within the USGS Maryland-Delaware-DC Water Science Center are divided into teams. To find out more about the WQMM Team's current projects, publications, and capabilities, please visit the links in the left menu.

What is the WQMM Team?

The Water Quality Monitoring and Modeling (WQMM) Team conducts water quality monitoring on rivers in Maryland, Delaware, and the District of Columbia, using USGS protocols that include ultra-clean techniques and a strong attention to data accuracy and precision.

Chemical and biological constituents include nutrients, trace metals, bacteria, suspended sediment, major ions, and organic wastewater compounds such as pharmaceuticals, personal-care products, and industrial compounds. For selected sites, continuous data sets exist for up to 35 years. The team specializes in continuous water quality monitoring for physical conditions including water temperature, pH, dissolved oxygen, conductivity, and turbidity. New technology has enhanced realtime-data collection with measurements of nitrate and fluorescent dissolved organic matter (FDOM).

The WQMM Team conducts investigative studies that combine discrete and continuous water quality data to model stream processes and impacts from land use and climate change. Continuous data are also used to compute and assess status, trends, yields, and loads for nutrients and sediment. These data can be evaluated to rapidly alert public-water suppliers of events that may adversely affect water supplies. Team funding is mainly through agreements with County and State or District agencies with matching cooperative funds from USGS.

The map below shows the locations of USGS water-quality sites in Maryland, Delaware, and Washington, D.C.  Click on a water-quality site (indicated by the yellow pentagon) to learn more about the site.

USGS Water-Quality Sites Susquehanna River at Conowingo, MD Susquehanna River near Darlington, MD Plumtree Run near Bel Air, MD Chesterville Branch near Crumpton, MD Choptank River near Greensboro, MD Patuxent River near Bowie, MD Mattawoman Creek near Pomonkey, MD Sligo Creek near Takoma Park, MD Northeast Branch Anacostia River at Riverdale, MD Paint Branch near College Park, MD Potomac River near Washington, DC Little Falls Pumping Station Rock Creek at Joyce Road, Washington, D.C. Hickey Run at National Arboretum in Washington, D.C. Watts Branch at Washington, D.C. Potomac River at Chain Bridge, Washington, D.C. Bucks Branch near Odessa, DE Millsboro Pond Outlet at Millsboro, DE Massey Ditch at Massey Landing, DE Murderkill River at Frederica, DE Appoquinimink River at Odessa, DE Christina River at Newport, DE Brandywine Creek at Wilmington, DE Savage River near Barton, MD North Branch Potomac River at Barnum, WV
USGS 03076500 YOUGHIOGHENY RIVER AT FRIENDSVILLE, MD
Drainage area: 295 square miles

Continuous parameters: Discharge, gage height, water temperature

Project manager: Matt Baker

Contact information: smbaker@usgs.gov; (301) 687-0919, ext. 15

Click here to view the Current Stream Conditions website.
USGS 01579550 SUSQUEHANNA RIVER NEAR DARLINGTON, MD
Drainage area: 27,300 square miles

Continuous parameters: Water temperature, specific conductance, pH, turbidity, dissolved oxygen, colored dissolved organic matter (CDOM), nitrate plus nitrite (NO3+NO2)

Project manager: Joel Blomquist

Contact information: jdblomqu@usgs.gov; (443) 498-5560


Click here to view the Current Stream Conditions website.
USGS 01578310 SUSQUEHANNA RIVER AT CONOWINGO, MD

Drainage area: 27,100 square miles

Discrete water-quality data: Nutrients, pesticides, major ions, suspended sediment

Project manager: Brenda Majedi

Contact information: blfeit@usgs.gov; 443-498-5527




USGS 01581752 PLUMTREE RUN NEAR BEL AIR, MD
Drainage area: 2.5 square miles

Continuous parameters Discharge, gage height, water temperature, specific conductance, turbidity

Discrete water-quality data: Nutrients, E. coli bacteria, dissolved organic carbon, suspended sediment

Project manager: Brenda Majedi

Contact information: blfeit@usgs.gov,
443-498-5527

USGS 01493112 CHESTERVILLE BRANCH NEAR CRUMPTON, MD
Drainage area: 6.12 square miles

Parameters: Continuous water-quality

Discrete water-quality data: Nutrients, major ions, isotopes, suspended sediment

Project manager: Judith Denver

Contact information: jmdenver@usgs.gov; 302-734-2506, extension 229

Click here to view the Current Stream Conditions website.
USGS 01491000 CHOPTANK RIVER NEAR GREENSBORO, MD
Drainage area: 113 square miles

Parameters: Continuous water-quality

Discrete water-quality data: Nutrients, major ions, suspended sediment

Project manager: Brenda Majedi

Contact information: blfeit@usgs.gov; 443-498-5527

Click here to view the Current Stream Conditions website.
USGS 01658000 MATTAWOMAN CREEK NEAR POMONKEY, MD

Drainage area: 54.8 square miles

Parameters: Gage height, discharge

Discrete water-quality data: Nutrients, suspended sediment

Project manager: Brenda Majedi

Contact information: blfeit@usgs.gov; 443-498-5527


USGS 01650800 SLIGO CREEK NEAR TAKOMA PARK, MD
Drainage area: 6.45 square miles

Continuous parameters: Gage height, discharge, water temperature, pH, specific conductance, dissolved oxygen, turbidity

Discrete water-quality data: Nutrients, chlorides, E. coli bacteria, suspended sediment

Project manager: Brenda Majedi
Contact information: blfeit@usgs.gov; 443-498-5527


USGS 01649500 NORTHEAST BRANCH ANACOSTIA RIVER AT RIVERDALE, MD
Drainage area: 72.8 square miles

Continuous parameters Gage height, discharge, water temperature, pH, specific conductance, dissolved oxygen, turbidity

Discrete water-quality data: Nutrients, chlorides, E. coli bacteria, suspended sediment

Project manager: Brenda Majedi

Contact information: blfeit@usgs.gov; 443-498-5527

USGS 01649190 PAINT BRANCH NEAR COLLEGE PARK, MD
Drainage area: 13.1 square miles

Continuous parameters Discharge, gage height, water temperature, pH, specific conductance, dissolved oxygen, turbidity

Discrete water-quality data: Nutrients, chloride, E. coli bacteria, suspended sediment

Project manager: Brenda Majedi

Contact information: blfeit@usgs.gov; 443-498-5527

USGS 01646500 POTOMAC RIVER NEAR WASHINGTON, D.C. LITTLE FALLS PUMPING STATION
Drainage area: 11,560 square miles

Continuous parameters Discharge, gage height, water temperature [7.1 ft from riverbed (top)], water temperature [4.1 ft from riverbed (middle)], water temperature [1.0 ft from riverbed (bottom)], specific conductance, NO3+NO2 in water, Chlorophyll, CDOM, turbidity

Project manager: Joseph Bell

Contact information: jmbell@usgs.gov; 443-498-5567


USGS 01648010 ROCK CREEK AT JOYCE RD, MD
Drainage area: 63.7 square miles

Continuous parameters Gage height, discharge, water temperature, pH, specific conductance, dissolved oxygen, turbidity

Discrete water-quality data: Nutrients, trace metals, E. coli bacteria, suspended sediment

Project manager: Brenda Majedi

Contact information: blfeit@usgs.gov; 443-498-5527

Click here to view the Current Stream Conditions website.
USGS 01651770 HICKEY RUN AT NATIONAL ARBORETUM IN WASHINGTON, D.C.
Drainage area: 0.99 square miles

Continuous parameters Gage height, discharge, water temperature, specific conductance, turbidity

Discrete water-quality data: Nutrients, trace metals, E. coli bacteria, suspended sediment

Project manager: Joseph Bell

Contact information: jmbell@usgs.gov; 443-498-5567


USGS 01651800 WATTS BRANCH IN WASHINGTON, D.C.
Drainage area: 3.28 square miles

Continuous parameters Gage height, discharge, water temperature, specific conductance, turbidity

Discrete water-quality data: Nutrients, trace metals, E. coli bacteria, suspended sediment

Project manager: Joseph Bell

Contact information: jmbell@usgs.gov; 443-498-5567


USGS 01646580 POTOMAC RIVER AT CHAIN BRIDGE, WASHINGTON, D.C.
Drainage area: 11,570 square miles

Discrete water-quality data: Nutrients, pesticides, major ions, suspended sediment

Project manager: Brenda Majedi

Contact information: blfeit@usgs.gov; 443-498-5527
USGS 01487150 BUCKS BRANCH NEAR ATLANTA, DE
Drainage area: 1.82 square miles

Continuous parameters: Gage height, water temperature, specific conductance, pH, dissolved oxygen

Discrete water-quality data: Nutrients, inorganics, stable isotopes, suspended sediment

Project manager: Judith Denver

Contact information: jmdenver@usgs.gov; 302-734-2506, extension 229

Click here to view the Current Stream Conditions website.
USGS 01594440 PATUXENT RIVER NEAR BOWIE, MD

Drainage area: 348 square miles

Continuous parameters: Discharge, gage height

Discrete water-quality data: Nutrients, major ions, suspended sediment

Project manager: Brenda Majedi

Contact information: blfeit@usgs.gov;443-498-5527




USGS 01484525 MILLSBORO POND OUTLET, DE
Drainage area: 61.7 square miles

Continuous parameters: Discharge, gage height, pH, specific conductance, water temperature, dissolved oxygen

Project manager: Betzaida Reyes

Contact information: breyes@usgs.gov; 302-734-2506, extension 244

Click here to view the Current Stream Conditions website.
USGS 01484680 MASSEY DITCH AT MASSEY LANDING, DE
Drainage area: N/A

Continuous parameters: Specific conductance, water temperature, pH, dissolved oxygen

Project manager: Betzaida Reyes

Contact information: breyes@usgs.gov; 302-734-2506, extension 244

Click here to view the Current Stream Conditions website.
USGS 01484080 MURDERKILL RIVER AT FREDERICA, DE
Drainage area: 82.8 square miles

Continuous parameters: Discharge, gage height, stream velocity, water temperature, specific conductance, pH, dissolved oxygen

Project manager: Betzaida Reyes

Contact information: breyes@usgs.gov; 302-734-2506, extension 244

Click here to view the Current Stream Conditions website.
USGS 01483177 APPOQUINIMINK RIVER NEAR ODESSA, DE
Drainage area: N/A

Continuous parameters: Specific conductance, water temperature, pH, dissolved oxygen

Project manager: Betzaida Reyes

Contact information: breyes@usgs.gov; 302-734-2506, extension 244

Click here to view the Current Stream Conditions website.
USGS 01480065 CHRISTINA RIVER AT NEWPORT, DE
Drainage area: N/A

Continuous parameters: Gage height, water temperature, specific conductance, pH, dissolved oxygen

Project manager: Betzaida Reyes

Contact information: breyes@usgs.gov; 302-734-2506, extension 244

Click here to view the Current Stream Conditions website.
USGS 01481500 BRANDYWINE CREEK AT WILMINGTON, DE
Drainage area: 314 square miles

Continuous parameters: Discharge, gage height, water temperature, specific conductance, pH, turbidity, dissolved oxygen

Discrete water-quality data: N/A

Project manager: Betzaida Reyes

Contact information: breyes@usgs.gov; 302-734-2506, extension 244

Click here to view the Current Stream Conditions website.
USGS 01596500 SAVAGE RIVER NEAR BARTON, MD
Drainage area: 49.1 square miles

Continuous parameters: Discharge, gage height, water temperature

Project manager: Jon Dillow

Contact information: jdillow@usgs.gov; 443-498-5524

Click here to view the Current Stream Conditions website.
USGS 01595800 NORTH BRANCH POTOMAC RIVER AT BARNUM, WV
Drainage area: 266 square miles

Continuous parameters: Discharge, gage height, water temperature, specific conductance, pH

Project manager: Jon Dillow

Contact information: jdillow@usgs.gov; 443-498-5524

Click here to view the Current Stream Conditions website.

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