| San Fernando Creek At Alice, TX |
| San Gabriel River At Laneport, TX |
| San Geronimo Creek Near Helotes, TX |
| San Jacinto River Near Sheldon, TX |
| San Marcos River At Luling, TX |
| San Marcos River At San Marcos, TX |
| San Marcos River Near Martindale, TX |
| San Miguel Creek Near Tilden, TX |
| San Pedro Creek At Probandt St At San Antonio, TX |
| San Saba River At Menard, TX |
| San Saba River At San Saba, TX |
| Seco Creek At Miller Rh Near Utopia, TX |
| Seco Creek At Rowe Rh Near D'Hanis, TX |
| Shoal Creek At Silverway Dr, Austin, TX |
| Shoal Creek At West 12Th St, Austin, TX |
| Sims Bayou At Hiram Clarke St, Houston, TX |
| Sims Bayou At Houston, TX |
| Sister Grove Creek Near Blue Ridge, TX |
| Slaughter Creek At Fm 1826 Near Austin, TX |
| Slaughter Creek At Fm 2304 Near Austin, TX |
| South Concho River At Christoval, TX |
| South Fork Rocky Creek Near Briggs, TX |
| South Fork Sabine River Near Quinlan, TX |
| South Fork San Gabriel River At Georgetown, TX |
| South Llano River At Flat Rock Ln At Junction, TX |
| South Mayde Creek Near Addicks, TX |
| South Side Canal Near Dundee, TX |
| South Sulphur River At Commerce, TX |
| South Sulphur River Near Cooper, TX |
| South Wichita River Near Benjamin, TX |
| Spring Creek Above Tankersley, TX |
| Spring Creek Above Twin Buttes Res Near San Angelo, TX |
| Spring Creek Near Spring, TX |
| Spring Creek Near Tomball, TX |
| Sulphur River At Ih 30 Near Dalby Springs, TX |
| Sulphur River Near Talco, TX |
| Sulphur Springs Draw Near Wellman, TX |
| Sweetwater Creek Near Kelton, TX |
| Tehuacana Creek Near Streetman, TX |
| Tierra Blanca Creek Above Buffalo Lake Near Umbarger, TX |
| Timber Creek Near Collinsville, TX |
| Tres Palacios River Near Midfield, TX |
| Trinity River At Dallas, TX |
| Trinity River At Liberty, TX |
| Trinity River At Riverside, TX |
| Trinity River At Romayor, TX |
| Trinity River At Trinidad, TX |
| Trinity River Below Dallas, TX |
| Trinity River Near Crockett, TX |
| Trinity River Near Goodrich, TX |
