| Data Service Title | Observation Network Name | WSDL | CreatedDate | Organization | Status | Earliest Start Date | Latest End Date |
| EPA STORET | EPA | WSDL | 2008.10.30 | EPA | | 1753.01.01 | 2012.02.03 |
| NWIS Daily Values | NWISDV | WSDL | 2008.10.30 | USGS | | 1847.10.18 | 2011.06.16 |
| NWIS Ground Water Level | NWISGW | WSDL | 2008.10.30 | USGS | | 1800.01.01 | 2008.12.28 |
| NWIS Instantaneous Irregular Data | NWISIID | WSDL | 2008.10.30 | USGS | | 1867.09.01 | 2010.04.13 |
| NWIS Unit Values | NWISUV | WSDL | 2008.10.30 | USGS | | 2011.10.06 | 2012.02.03 |
| USACE River Gages | RiverGages | WSDL | 2009.10.02 | U.S. Army Corps of Engineers | | 2000.01.01 | 2012.02.03 |
| Chesapeake Bay Information Management System | CIMS | WSDL | 2008.10.30 | Chesapeake Bay Information Management System | | 1949.07.02 | 2006.10.23 |
| Freeman Ranch Mesquite Juniper Flux Tower | AmeriFlux | WSDL | 2010.10.01 | AmeriFlux Network | | 2005.01.01 | 2008.12.29 |
| Baltimore Waters Test Bed Ground Water Level Data | BaltimoreGW | WSDL | 2008.10.30 | Baltimore Waters Test Bed | | 2008.03.13 | 2010.11.23 |
| Baltimore Precipitation | BaltPrecip | WSDL | 2009.08.11 | Center for Urban Environmental Research and Education | | 2000.11.14 | 2009.05.17 |
| Benthic Data in Chesapeake Bay | Benthic | WSDL | 2011.01.14 | Chesapeake Bay Environmental Observatory | | 1995.03.08 | 2009.10.06 |
| Baltimore Ecosystem Study Stream Chemistry Data | BESOD | WSDL | 2008.10.30 | Baltimore Ecosystem Study | | 1998.10.15 | 2006.03.28 |
| Baltimore Ecosystem Study Soils Data | BESSoil | WSDL | 2008.10.30 | Baltimore Ecosystem Study | | 2000.02.23 | 2007.03.08 |
| Cosmic-ray Soil Moisture Observation System | COSMOS | WSDL | 2011.06.13 | University of Arizona | | 2008.04.28 | 2011.05.31 |
| Crown of the Continent Observatory Snow | COTCsnow | WSDL | 2008.10.30 | Crown of the Continent Observatory (Montana State University) | | 2007.06.24 | 2007.08.16 |
| Coweeta Hydrologic Laboratory Public Data | COWEETA | WSDL | 2011.06.12 | Coweeta Hydrologic Laboratory and LTER | | 1936.11.01 | 2009.12.31 |
| Czech Snow Cover | CZSNW | WSDL | 2011.03.31 | Czech Hydrometeorological Institute | | 2005.11.20 | 2012.02.03 |
| Delaware Environmental Observing System | DEOS | WSDL | 2011.09.21 | University of Deleware | | 2010.11.01 | 2012.02.03 |
| EPA - East Fork Watershed in Ohio | EFW | WSDL | 2011.10.11 | EPA-EFW | | 1996.01.01 | 2011.08.31 |
| Glacial Ridge Project | GlacialRidge | WSDL | 2011.04.25 | University of North Dakota | | 2007.10.11 | 2010.09.23 |
| Edwards Aquifer Groundwater Database | GW_Edwards | WSDL | 2010.09.29 | UT-CRWR / TWDB | | 1896.03.14 | 2009.11.15 |
| Hassberge catchment long-Term monitoring data | Hassberge | WSDL | 2011.12.12 | Technische University Manchen | | 2008.11.07 | 2011.06.06 |
| Central European Climate Data | HCLIMATE | WSDL | 2011.07.21 | Charles University Prague | | 1997.12.31 | 2011.12.27 |
| Hermine Flood | HermineFlood | WSDL | 2010.10.28 | Hermine Flood Database by CRWR | | 2010.07.01 | 2010.10.27 |
| HydroNEXRAD | HydroNEXRAD | WSDL | 2009.08.11 | Hydro_NEXRAD Data Services at the University of Iowa | | 2007.01.01 | 2008.12.31 |
| IIHR Tipping Bucket | IIHRTippingB | WSDL | 2008.10.30 | IIHR - The University of Iowa | | 1900.01.01 | 2011.05.07 |
| IIHR Water Quality | IIHRWQ | WSDL | 2008.10.30 | IIHR - The University of Iowa | | 2006.03.22 | 2009.12.06 |
| La Selva Hydrologic Data | LaSelvastreamdischarge | WSDL | 2011.10.20 | North Carolina State University, Department of Marine, Earth and Atmospheric Sciences | | 2006.01.01 | 2010.12.31 |
| Grasslands Ecological Area of the San Joaquin Basin, California | LBL | WSDL | 2009.07.27 | Lawrence Berkeley National Laboratory | | 2006.05.23 | 2008.12.31 |
| Little Bear River Experimental Watershed, Northern Utah, USA | LittleBearRiver | WSDL | 2008.10.30 | Utah Water Research Laboratory, Utah State University | | 2005.04.27 | 2012.02.03 |
| Logan River Observations, Northern Utah, USA | LoganRiver | WSDL | 2009.10.27 | Watershed Sciences Department, Utah State University | | 2007.09.27 | 2009.09.02 |
| MAST | MAST | WSDL | 2008.12.23 | Multicultural students At Sea Together (MAST) | | 2001.06.13 | 2007.06.16 |
| McCall Outdoor Science School Observations | MOSS | WSDL | 2011.08.16 | McCall Outdoor Science School - University of Idaho | | 2003.10.15 | 2010.10.08 |
| Multi-sensor Precipitation Estimates | MPE | WSDL | 2008.10.30 | NOAA National Weather Service Advanced Hydrologic Prediction Service | | 2005.01.01 | 2009.06.29 |
| Muddy River Water Quality Monitoring Project | MuddyRiver | WSDL | 2011.03.18 | Northeastern University | | 2006.09.24 | 2009.08.17 |
| Mud Lake, Idaho, USA | MudLake | WSDL | 2008.10.30 | Utah Water Research Laboratory, Utah State University | | 2006.10.01 | 2011.06.01 |
| National Atmospheric Deposition Program | NADP | WSDL | 2008.10.30 | National Atmospheric Deposition Program | | 1978.07.25 | 2007.05.08 |
| NLDAS Hourly Mosaic Land Surface Model Output | NLDAS | WSDL | 2011.03.18 | NASA Goddard Earth Sciences (GES) Data and Information Services Center | | 1979.01.02 | 2012.01.13 |
| Niagara Peninsula Conservation Authority Water Quantity Data Service | NPCA | WSDL | 2009.12.17 | Niagara Peninsula Conservation Authority | | 2001.06.09 | 2012.02.03 |
| Niagara Peninsula Conservation Authority Water Quality Data Service | NPCAQUAL | WSDL | 2010.12.02 | Niagara Peninsula Conservation Authority | | 2000.11.24 | 2010.10.26 |
| NWS-WGRFC Daily Multi-sensor Precipitation Estimates Recent Values | NWS_WGRFC_Daily_MPE_Recent_Values | WSDL | 2011.05.31 | NOAA's National Weather Service West Gulf River Forecast Center | | 2010.10.01 | 2012.02.03 |
| NWS-WGRFC Daily Multi-sensor Precipitation Estimates | NWS-WGRFC_Daily_MPE | WSDL | 2011.05.31 | NOAA's National Weather Service West Gulf River Forecast Center | | 1995.01.02 | 2010.10.01 |
| NWS-WGRFC Hourly Multi-sensor Precipitation Estimates | NWS-WGRFC_Hourly_MPE | WSDL | 2011.05.18 | NOAA's National Weather Service West Gulf River Forecast Center | | 1997.07.01 | 2010.10.01 |
| NWS-WGRFC Hourly Multi-sensor Precipitation Estimates Recent Values | NWS-WGRFC_Hourly_MPE_Recent_Values | WSDL | 2011.05.31 | NOAA's National Weather Service West Gulf River Forecast Center | | 2010.10.01 | 2012.02.03 |
| Dry Creek Experimental Watershed, SW Idaho | ODMDCEW2 | WSDL | 2009.08.26 | Boise State University, Hydrologic Sciences Department | | 1998.12.22 | 2010.07.05 |
| Panola Mountain Research Watershed, Georgia | ODMPMRW2 | WSDL | 2010.12.04 | U.S. Geological Survey, Georgia Water Science Center | | 1985.04.08 | 2010.10.01 |
| Reynolds Creek Experimental Watershed, SW Idaho | ODMRCEW2 | WSDL | 2010.12.04 | Northwest Watershed Research Center, Agricultural Research Service, U.S. Dept of Agriculture | | 1962.01.06 | 2010.01.01 |
| Paradise Creek Watershed, Idaho | ParadiseCreek | WSDL | 2009.10.12 | University of Idaho - Bio/Ag Engineering/Waters of the West | | 2001.10.01 | 2008.10.01 |
| Portneuf Watershed Observations, Idaho | PWP | WSDL | 2010.07.16 | Idaho State University | | 2005.02.19 | 2012.02.03 |
| RIM Program | RIMP | WSDL | 2010.03.09 | USGS, Virginia DEQ and Maryland Department of Natural Resources | | 1964.06.11 | 2009.02.17 |
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