(a) The Canadian River basin boundary is designated by lines delineated on quad maps listed in the following table. Digital files of these quad maps are stored with the basin lines drawn thereon, are adopted by reference, and are located in the offices of the Texas Water Development Board.
Attached Graphic
(b) The Red River basin boundary is designated by lines delineated on quad maps listed in the following table. Digital files of these quad maps are stored with the basin lines drawn thereon, are adopted by reference, and are located in the offices of the Texas Water Development Board.
Attached Graphic
(c) The Sulphur River basin boundary is designated by lines delineated on quad maps listed in the following table. Digital files of these quad maps are stored with the basin lines drawn thereon, are adopted by reference, and are located in the offices of the Texas Water Development Board.
Attached Graphic
(d) The Cypress Creek basin boundary is designated by lines delineated on quad maps listed in the following table. Digital files of these quad maps are stored with the basin lines drawn thereon, are adopted by reference, and are located in the offices of the Texas Water Development Board.
Attached Graphic
(e) The Sabine River basin boundary is designated by lines delineated on quad maps listed in the following table. Digital files of these quad maps are stored with the basin lines drawn thereon, are adopted by reference, and are located in the offices of the Texas Water Development Board.
Attached Graphic
(f) The Neches River basin boundary is designated by lines delineated on quad maps listed in the following table. Digital files of these quad maps are stored with the basin lines drawn thereon, are adopted by reference, and are located in the offices of the Texas Water Development Board.
Attached Graphic
(g) The Neches-Trinity coastal basin boundary is designated by lines delineated on quad maps listed in the following table. Digital files of these quad maps are stored with the basin lines drawn thereon, are adopted by reference, and are located in the offices of the Texas Water Development Board.
Attached Graphic
(h) The Trinity River basin boundary is designated by lines delineated on quad maps listed in the following table. Digital files of these quad maps are stored with the basin lines drawn thereon, are adopted by reference, and are located in the offices of the Texas Water Development Board.
Attached Graphic
(i) The Trinity-San Jacinto coastal basin boundary is designated by lines delineated on quad maps listed in the following table. Digital files of these quad maps are stored with the basin lines drawn thereon, are adopted by reference, and are located in the offices of the Texas Water Development Board.
Attached Graphic
(j) The San Jacinto River basin boundary is designated by lines delineated on quad maps listed in the following table. Digital files of these quad maps are stored with the basin lines drawn thereon, are adopted by reference, and are located in the offices of the Texas Water Development Board.
Attached Graphic
(k) The San Jacinto-Brazos coastal basin boundary is designated by lines delineated on quad maps listed in the following table. Digital files of these quad maps are stored with the basin lines drawn thereon, are adopted by reference, and are located in the offices of the Texas Water Development Board.
Attached Graphic
(l) The Brazos River basin boundary is designated by lines delineated on quad maps listed in the following table. Digital files of these quad maps are stored with the basin lines drawn thereon, are adopted by reference, and are located in the offices of the Texas Water Development Board.
Attached Graphic
(m) The Brazos-Colorado coastal basin boundary is designated by lines delineated on quad maps listed in the following table. Digital files of these quad maps are stored with the basin lines drawn thereon, are adopted by reference, and are located in the offices of the Texas Water Development Board.
Attached Graphic
(n) The Colorado River basin boundary is designated by lines delineated on quad maps listed in the following table. Digital files of these quad maps are stored with the basin lines drawn thereon, are adopted by reference, and are located in the offices of the Texas Water Development Board.
Attached Graphic
(o) The Colorado-Lavaca coastal basin boundary is designated by lines delineated on quad maps listed in the following table. Digital files of these quad maps are stored with the basin lines drawn thereon, are adopted by reference, and are located in the offices of the Texas Water Development Board.
Attached Graphic
(p) The Lavaca River basin boundary is designated by lines delineated on quad maps listed in the following table. Digital files of these quad maps are stored with the basin lines drawn thereon, are adopted by reference, and are located in the offices of the Texas Water Development Board.
Attached Graphic
(q) The Lavaca-Guadalupe coastal basin boundary is designated by lines delineated on quad maps listed in the following table. Digital files of these quad maps are stored with the basin lines drawn thereon, are adopted by reference, and are located in the offices of the Texas Water Development Board.
Attached Graphic
(r) The Guadalupe River basin boundary is designated by lines delineated on quad maps listed in the following table. Digital files of these quad maps are stored with the basin lines drawn thereon, are adopted by reference, and are located in the offices of the Texas Water Development Board.
Attached Graphic
(s) The San Antonio River basin boundary is designated by lines delineated on quad maps listed in the following table. Digital files of these quad maps are stored with the basin lines drawn thereon, are adopted by reference, and are located in the offices of the Texas Water Development Board.
Attached Graphic
(t) The San Antonio-Nueces coastal basin boundary is designated by lines delineated on quad maps listed in the following table. Digital files of these quad maps are stored with the basin lines drawn thereon, are adopted by reference, and are located in the offices of the Texas Water Development Board.
Attached Graphic
(u) The Nueces River basin boundary is designated by lines delineated on quad maps listed in the following table. Digital files of these quad maps are stored with the basin lines drawn thereon, are adopted by reference, and are located in the offices of the Texas Water Development Board.
Attached Graphic
(v) The Nueces-Rio Grande coastal basin boundary is designated by lines delineated on quad maps listed in the following table. Digital files of these quad maps are stored with the basin lines drawn thereon, are adopted by reference, and are located in the offices of the Texas Water Development Board.
Attached Graphic
(w) The Rio Grande River basin boundary is designated by lines delineated on quad maps listed in the following table. Digital files of these quad maps are stored with the basin lines drawn thereon, are adopted by reference, and are located in the offices of the Texas Water Development Board.
Attached Graphic

Source Note: The provisions of this §360.3 adopted to be effective December 9, 1998, 23 TexReg 12447; amended to be effective May 29, 2024, 49 TexReg 3807