Federal Organizations

Environmental Protection Agency (EPA):
http://www.epa.gov

Federal Emergency Management Agency (FEMA):
http://www.fema.gov

Maritime Administration (MARAD):
http://www.marad.dot.gov

National Aeronautics and Space Administration (NASA):
http://www.nasa.gov/

National Oceanic and Atmospheric Administration (NOAA):
http://www.noaa.gov

Natural Resource Conservation Service (USDA NRCS):
http://www.nrcs.usda.gov

River Forecast Centers (NOAA NWS RFCS):
http://www.nwrfc.noaa.gov/misc/rfcs.cgi

Saint Lawrence Seaway Development Corporation (SLSDC):
http://www.seaway.dot.gov

Tennessee Valley Authority (TVA):
http://www.tva.gov/

U.S. Agency for International Development (USAID):
http://www.usaid.gov/

U.S. Army Corps of Engineers (USACE):
http://www.usace.army.mil

U.S. Bureau of Indian Affairs (USBIA):
http://www.bia.gov/

U.S. Bureau of Land Management (BLM):
http://www.blm.gov

U.S. Bureau of Reclamation (USBR):
http://www.usbr.gov

U.S. Coast Guard (USCG):
http://www.uscg.mil/

U.S. Department of Agriculture (USDA):
http://www.usda.gov

U.S. Department of Energy (USDOE):
http://energy.gov/

U.S. Department of State (USDOS):
http://www.state.gov/

U.S. Department of Transportation (USDOT):
http://www.dot.gov/

U.S. Department of the Interior (DOI):
http://www.doi.gov

U.S. Fish & Wildlife Service (USFWS):
http://www.fws.gov

U.S. Forest Service (USFS):
http://www.fs.fed.us

U.S. Geological Survey (USGS):
http://www.usgs.gov

U.S. National Park Service (NPS):
http://www.nps.gov

Non-Governmental Organizations (NGO)

Agriculture Network Information Center (AgNIC):
http://www.agnic.org/

Alliance for Water Efficiency (AWE):
http://www.allianceforwaterefficiency.org/

American Association of Port Authorities (AAPA):
http://www.aapa-ports.org/

American Fisheries Society (AFS):
http://www.fisheries.org/

American Geophysical Union (AGU):
http://www.agu.org/

American Institute of Hydrology (AIH):
http://www.aihydrology.org/

American Meteorological Society (AMS):
http://www.ametsoc.org/

American Shore & Beach Preservation Association (ASBPA):
http://www.asbpa.org/home.php

American Society for Photogrammetry and Remote Sensing (ASPRS):
http://www.asprs.org/

American Society of Agricultural and Biological Engineers (ASABE):
http://www.asabe.org/

American Society of Civil Engineers (ASCE):
http://www.asce.org/

American Water Resources Association (AWRA):
http://www.awra.org/

American Water Works Association (AWWA):
http://www.awwa.org/

American Water Works Association Water Conservation Resource Community (AWWA):
http://www.awwa.org/resources-tools/water-knowledge/water-conservation.aspx

Asia Pacific Water Forum (APWF):
http://www.apwf.org/link/

Association of California Water Agencies (ACWA):
http://www.acwa.com/

Association of State Drinking Water Administrators (ASDWA):
http://www.asdwa.org/

Association of State Floodplain Managers (ASFPM):
http://www.floods.org/

Association of State Wetland Managers (ASWM):
http://www.aswm.org/index.php

Association of Water Technologies (AWT):
http://www.awt.org/

Canadian Water Resources Association (CWRA):
http://www.cwra.org/

Centre for Energy Advancement through Technological Innovation (CEATI):
http://www.ceati.com/

Coastal and Estuarine Research Federation (CERF):
http://www.erf.org/

Ecological Society of America (ESA):
http://www.esa.org/

International Association for Environmental Hydrology (IAEH):
http://www.hydroweb.com/

Interstate Council on Water Policy (ICWP):
http://www.icwp.org/2012/

Life on the Water :
http://www.lifeonthewater.com

National Association of Flood and Stormwater Management Agencies (NAFSMA):
http://www.nafsma.org/

National Environmental Services Center (NESC):
http://www.nesc.wvu.edu/

National Governors Association (NGA):
http://www.nga.org/cms/home.html

National Institutes for Water Resources (NIWR):
https://niwr.net/public/Migration/niwr.net

National Mississippi River Museum and Aquarium :
http://www.mississippirivermuseum.com/

National Science Foundation (NSF):
http://www.nsf.gov/

National Waterways Conference (NWC):
http://www.waterways.org/

Natural Resources Conservation Service (NRCS):
http://www.nrcs.usda.gov/

PIANC – The World Association for Waterborne Transport Infrastructure (PIANC):
http://pianc.org/

Pacific Institute for Studies in Development, Environment & Security (PACINST):
http://www.pacinst.org/

Renewable Natural Resources Foundation (RNRF):
http://www.rnrf.org/

Restore America’s Estuaries (RAE):
http://www.estuaries.org/

Rocky Mountain Institute (RMI):
http://www.rmi.org/

Rocky Mountain Mineral Law Foundation (RMMLF):
http://www.rmmlf.org/

Soil & Water Conservation Society (SWCS):
http://www.swcs.org/

The Groundwater Foundation (GWF):
http://www.groundwater.org/

The Nature Conservancy (TNC):
http://www.tnc.org/

The Wildlife Society (TWS):
http://www.wildlife.org/

The World’s Water :
http://www.worldwater.org/

U.S. Global Change Research Program (USGCRP):
http://www.globalchange.gov/

U.S. Water Alliance (USWA):
http://www.uswateralliance.org/

U.S. Water Partnership (USWP):
http://www.uswaterpartnership.org/

Universities Council on Water Resources (UCOWR):
http://www.ucowr.org/

Water Environment Federation (WEF):
http://www.wef.org/

Water On Line :
http://www.wateronline.com/

Water Quality Association (WQA):
http://www.wqa.org/

Waterkeeper Alliance :
http://www.waterkeeper.org/

Watershed Group Catalog :
http://www.epa.gov/adopt/network.html

Waterways Council, Inc. (WCI):
http://www.waterwayscouncil.org/

Western Governors’ Association (WGA):
http://www.westgov.org/

Western States Water Council (WSWC):
http://www.westernstateswater.org/

Wetlandsbank Inc. :
http://www.wetlandsbank.com/

World Wildlife Fund (WWF):
http://worldwildlife.org/about

Regional Organizations

California Marine Affairs and Navigation Conference (CMANC):
http://www.cmanc.com/

Chester Ridley Crum Watersheds Association (CRC):
http://www.crcwatersheds.org/

Colorado Water Institute (CWI):
http://www.cwi.colostate.edu/default.asp

Council of Great Lakes Governors (CGLG):
http://www.cglg.org/

Delaware River Basin Commission (DRBC):
http://www.state.nj.us/drbc/

Great Lakes Commission (GLC):
http://www.glc.org/

Great Lakes Information Network (GLIN):
http://www.great-lakes.net/

Interstate Commission on the Potomac River Basin (ICPRB):
http://www.potomacriver.org/2012/

Missouri River Association of States and Tribes (MoRAST):
http://mo-rast.org/

Missouri and Associated Rivers Coalition (MOARC):
http://www.moarc.org/

Missouri-Arkansas River Basin Association (MO-ARK):
http://www.moarc.org/

New England Interstate Water Pollution Control Commission (NEIWPCC):
http://www.neiwpcc.org/

Susquehanna River Basin Commission (SRBC):
http://www.srbc.net/

Upper Mississippi River Basin Association :
http://www.umrba.org/

Upper Mississippi, Illinois, and Missouri River Association :
http://umimra.org/

State Organizations

Alabama (AL):
http://www.alabama.gov