Welcome to the CMC Chesapeake Data Explorer account registration page. If you are affiliated with a CMC monitoring group and will be uploading data to the Chesapeake Data Explorer, you need to register for an account. Please note that you are free to explore and download data without creating an account, a good place to start exploring is on the home page.

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Alliance for Aquatic Resource Monitoring Alliance for the Chesapeake Bay Alliance for the Chesapeake Bay MD Anacostia Riverkeeper Anne Arundel Community College Antietam Watershed Association Antietam-Conococheague Watershed Alliance Arundel Rivers Federation Atlantic Blue Water Services Beagle River Virginia Master Naturalists Big Spring Watershed Association Blackwater National Wildlife Refuge Blue Water Baltimore Bowie State University Bradford County Stream Team Bradford County Volunteer Monitors Buffalo Creek Watershed Alliance Cacapon Institute Caledon State Park Camp St. Charles CBP Benthic Monitoring Centre County Pennsylvania Senior Environmental Corps Chesapeake Bay Foundation Chesapeake Bay Governor's School Chesapeake Monitoring Cooperative Chesterfield WaterTrends Chickahominy Indian Tribe - Eastern Division City of Suffolk Clinton County Stream Team Columbia County Stream Team Community Science Institute Concerned Citizens of Charles City County Conodoguinet Creek Watershed Association Cowpasture River Preservation Association Culpeper Soil and Water Coservation District Cumberland County Conservation District Cumberland County Stream Team Cumberland Valley Trout Unlimited Dan River Basin Association Dauphin County Stream Team Deer Creek Watershed Association EcoCrew 2831 Elizabeth River Project Elk and North East River Watershed Association Ferrum College Four Mile Run Conservancy Friends of Accotink Creek Friends of Dragon Run Friends of Roland Run Friends of the Bohemia Friends of the Middle River Friends of the Rappahannock Friends Of the Shenandoah River Gods Country Water Dogs Goose Creek Association Green Aquia Gunpowder Valley Conservancy Havre de Grace Maritime Museum Henrico Area Water Quality Samplers Henrico Area Water Quality Samplers 2 Historic Rivers Master Naturalists Historic Southside Master Naturalists Hoffler Creek Izaak Walton League of America James City County James River Association James River Master Naturalists John Marshall Soil and Water Conservation District Johnston Run Revitalization Council Lackawanna County Stream Team Lake Anna Civic Association Lancaster Water Quality Volunteer Coalition Lebanon County Stream Team LeTort Regional Authority Loudoun Wildlife Conservancy Lower Susquehanna Riverkeeper Association Luzerne County Stream Team Lycoming County Stream Team Mariners Museum Maryland Department of the Environment Mattaponi Indian Tribe and Reservation Maury River Monitors Maymont Foundation MBSS Stream Waders Middle Peninsula Master Naturalists Middle Spring Watershed Association Montour County Stream Team Nansemond River Preservation Alliance Nanticoke Watershed Alliance Nature Forward New River Valley Virginia Master Naturalists New York Water Sentinels North Ridge Citizens Association Northern Neck Master Naturalists Northern Virginia Soil and Water Conservation District Northern Virginia Trout Unlimited Octoraro Watershed Association Otsego County Conservation Association Patapsco Heritage Greenway Peninsula Chapter Virginia Master Naturalists Perry County Stream Team Piedmont Environmental Council Potomac Riverkeeper Prince William Soil and Water Conservation District Randolph Macon College Rappahannock League for Environmental Protection Reedy Creek Coalition Reston Volunteers Ridge Valley Streamkeepers Rivanna Conservation Alliance Riverine Master Naturalists Roanoke Chapter- Izaak Walton League of America Roanoke College Roanoke River Project Rockbridge Water Monitors Rush River Monitors (inactive) Semper Sky Severn River Association Shenandoah University Environmental Studies Shenandoah Valley Soil and Water Conservation District ShoreRivers Smith Mountain Lake Association Spa Creek Conservancy St Mary's River Monitoring Cooperative Susquehanna County Conservation District Susquehanna County Stream Team Trout Unlimited Coldwater Conservation Corps Trout Unlimited Pipeline Monitoring Program United States National Arboretum D.C. Upper Potomac Riverkeeper VA Department of Environmental Quality VA DEQ TEST Virginia Aquarium Virginia Beach Monitors Virginia Institute of Marine Science Virginia Save Our Streams Virginia State University West Virginia Rivers West Virginia Save Our Streams Wicomico Environmental Trust Wyoming County Stream Team York County Stream Team York County Stream Team Master Watershed Stewards York MWS Nature Abounds York River Stewards

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