basins
- San Jacinto River Basin: 2004 Assessment
- List of assessment and fact sheets for different water body segments in the San Jacinto River Basin for 2004.
- Gulf of Mexico: 2004 Assessment
- List of assessment and fact sheets for different water body segments in the Gulf of Mexico for 2004.
- Neches River Basin: 2004 Assessment
- List of assessment and fact sheets for different water body segments in the Neches River Basin for 2004.
- Brazos River Basin: 2004 Assessment
- List of assessment and fact sheets for different water body segments in the Brazos River Basin for 2004.
- San Antonio River Basin: 2004 Assessment
- List of assessment and fact sheets for different water body segments in the San Antonio River Basin for 2004.
- Neches-Trinity Coastal Basin: 2004 Assessment
- List of assessment and fact sheets for different water body segments in the Neches-Trinity Coastal Basin for 2004.
- Canadian River Basin
- List of Assessment and Fact sheets for different water body segments in the Canadian River Basin for 2004.
- Nueces River Basin: 2004 Assessment
- List of assessment and fact sheets for different water body segments in the Nueces River Basin for 2004.
- Guadalupe River Basin: 2004 Assessment
- List of assessment and fact sheets for different water body segments in the Guadalupe River Basin for 2004.
- Colorado-Lavaca Coastal Basin: 2004 Assessment
- List of assessment and fact sheets for different water body segments in the Colorado-Lavaca Coastal Basin for 2004.
- Cypress Creek Basin: 2004 Assessment
- List of assessment and fact sheets for different water body segments in the Cypress Creek Basin for 2004.
- Sabine River Basin: 2004 Assessment
- List of assessment and fact sheets for different water body segments in the Sabine River Basin for 2004.
- Trinity River Basin: 2004 Assessment
- List of assessment and fact sheets for different water body segments in the Trinity River Basin for 2004.
- Nueces-Rio Grande Coastal Basin: 2004 Assessment
- List of assessment and fact sheets for different water body segments in the Nueces-Rio Grande Coastal Basin for 2004.
- Red River Basin
- List of Assessment and Fact sheets for different water body segments in the Red River Basin for 2004.
- Lavaca-Guadalupe Coastal Basin: 2004 Assessment
- List of assessment and fact sheets for different water body segments in the Lavaca-Guadalupe Coastal Basin for 2004.
- San Jacinto-Brazos Coastal Basin: 2004 Assessment
- List of assessment and fact sheets for different water body segments in the San Jacinto-Brazos Coastal Basin for 2004.
- San Antonio-Nueces Coastal Basin: 2004 Assessment
- List of assessment and fact sheets for different water body segments in the San Antonio-Nueces Coastal Basin for 2004.
- Bays and Estuaries: 2004 Assessment
- List of assessment and fact sheets for different water body segments in the Bays and Estuaries for 2004.
- Rio Grande Basin: 2004 Assessment
- List of assessment and fact sheets for different water body segments in the Rio Grande Basin for 2004.
- Trinity-San Jacinto Coastal Basin:2004 Assessment
- List of assessment and fact sheets for different water body segments in the Trinity-San Jacinto Coastal Basin for 2004.
- Brazos-Colorado Coastal Basin: 2004 Assessment
- List of assessment and Ffact sheets for different water body segments in the Brazos-Colorado Coastal Basin for 2004.
- Sulphur River Basin: 2004 Assessment
- List of assessment and fact sheets for different water body segments in the Sulphur River Basin for 2004.
- Lavaca River Basin: 2004 Assessment
- List of Assessment and Fact sheets for different water body segments in the Lavaca River Basin for 2004.
- Colorado River Basin: 2004 Assessment
- List of assessment and fact sheets for different water body segments in the Colorado River Basin for 2004.
