Yellowstone Park Foundation
Mammoth Hot Springs, Wyoming
The Town or Wardensville
Wardensville, West Virginia
Louisville Metroparks
Louisville Metropolitan Area, Kentucky
Columbia River Estuary Study Taskforce (CREST)
Mouth of the Columbia River, Oregon
Clean Water Services
Gaston, Oregon
Columbia County Soil and Water Conservation District
Vernonia, Oregon
Columbia Soil and Water Conservation District
Clatskanie, Oregon, Oregon
New York City Department of Environmental Protection
Queens, New York, New York
City of New Haven
New Haven, Connecticut
Metro
Barton, Oregon
Delaware Department of Natural Resources and Environmental Control (DNREC)
Newark, Delaware
Cowlitz Indian Tribe
Astoria, Oregon
U.S. Department of Transportation, Federal Highway Administration
Boulder County, Colorado
City of Rockville Department of Recreation and Parks
Rockville, Maryland
Indian Springs School
Indian Springs, Alabama
City of Baltimore Department of Recreation and Parks
Baltimore, Maryland
Spa Creek Conservancy
Annapolis, Maryland
University of Virginia
Wise, Virginia
Pearlstone Center
Reisterstown, Maryland
National Aquarium in Baltimore
Baltimore, Maryland
City of Baltimore Department of Planning
Baltimore, Maryland
DC Water
Washington, District of Columbia
Las Vegas Valley Water District
Las Vegas, Nevada
Clean Water Services
Beaverton, Oregon
The Columbia River Estuary Study Taskforce
Columbia County, Oregon
Baltimore City Department of Public Works
Baltimore, Maryland
Los Angeles County
La Cañada Flintridge, California
Chesapeake Bay Foundation
Virginia Beach, Virginia