Texas Water Development Board - Bays and Estuaries, Reservoir Volumetric Surveys, Texas Water Conditions
Texas Commission On Environmental Quality - Clean Rivers Program, Surface Water Quality Monitoring, Water Rights
Texas Parks and Wildlife Department - Environmental Water Information
Texas River Authorities
U.S. Geological Survey - Texas Surface-Water Quantity Data - Texas Water Quality Data
International Boundary and Water Commission - Rio Grande Flow and Reservoir Information
U. S. Corps of Engineers (Southwestern Division) - Corps Projects in Texas, Fort Worth District Office, Daily Reservoir Reports
US Bureau of Reclamation - Great Plains Region - Upper Colorado Region - USBR DataWEB