Water Planning Data for Region L (South Central Texas)

Aransas River - From the confluence with Copano Bay in Aransas/Refugio County to a point 3.3 miles upstream of Chiltipin Creek in Refugio/San Patricio County (TNRCC classified stream segment 2003).

Biological function - extensive estuarine wetland habitat displays significant overall habitat value (NWI, 1999)
Threatened or endangered species/unique communities - reddish egret (SOC/St.T), piping plover (Fed.T/St.T), snowy plover (SOC), white-faced ibis (SOC/St.T), wood stork (SOC/St.T), brown pelican (Fed.E/St. E) (TPWD, 2000)

Arenosa Creek - From the confluence with Garcitas Creek in Victoria/Jackson County upstream to its headwaters along the northern boundary of Victoria County.

High water quality/exceptional aquatic life/high aesthetic value - Ecoregion Stream (Bayer et al. 1992); Benthic macroinvertebrates (Bayer et al. 1992 and Davis 1998)

Blanco River - From a point 0.2 mile upstream of Limekiln Road in Hays County to the confluence of Meier Creek in Kendall County (TNRCC classified stream segment 1813).

Hydrologic function - Edwards Aquifer Recharge Zone
High water quality/exceptional aquatic life/high aesthetic value - Overall use (Texas Natural Resource Conservation Commission 1995)

Carpers Creek - From the confluence with the Blanco River in Comal County upstream to its headwaters in the northern part of Comal County.

High water quality/exceptional aquatic life/high aesthetic value - Ecoregion Stream (Bayer et al. 1992); Benthic macroinvertebrates (Bayer et al. 1992 and Davis 1998)

Comal River - From the confluence with the Guadalupe River in Comal County upstream to Klingemann Street in New Braunfels in Comal County (TNRCC classified stream segment 1811).

Hydrologic function - Edwards Aquifer Recharge Zone
Riparian conservation area - Landa Park
Threatened or endangered species/unique communities - Fountain darter, Comal Springs riffle beetle, Comal Springs dryopid beetle,
Peck's Cave amphipod (Sullivan 1998)

Cypress Creek - From the confluence with the Blanco River in Hays County upstream to a point four miles upstream of the most upstream unnamed county road crossing in Hays County (TNRCC classified stream segment 1815).

Hydrological function - Edwards Aquifer Recharge Zone
High water quality/exceptional aquatic life/high aesthetic value - Overall use (Texas Natural Resource Conservation Commission 1995)

Frio River - From a point 110 yards upstream of US 90 in Uvalde County upstream to the Uvalde/Real County line (within TNRCC classified stream segment 2113).

Biological function - Texas Natural Rivers System nominee (National Park Service 1995)
Hydrologic function - Edwards Aquifer Recharge Zone
Riparian conservation area - Garner State Park
High water quality/exceptional aquatic life/high aesthetic value - Overall use (Texas Natural Resource Conservation Commission 1995); Exceptional aesthetic value (National Park Service 1995)

Garcitas Creek - From the confluence with Lavaca Bay in Victoria/Jackson/Calhoun County upstream to FM 1315 in Victoria County.

Biological function - Estuarine wetlands (National Wetlands Inventory 1999)
High water quality/exceptional aquatic life/high aesthetic value - Ecoregion Stream, Dissolved oxygen (Bayer et al. 1992); Benthic macroinvertebrates (Bayer et al. 1992 and Davis 1998).
Threatened or endangered species/unique communities - One of only a few locales in Texas where Texas palmetto occurs naturally (Ortego 1999); Diamondback terrapin (Ortego 1999)

Geronimo Creek - From the confluence with the Guadalupe River about four miles southeast of Seguin in Guadalupe County upstream to its headwaters northwest of Geronimo in Guadalupe County.

High water quality/exceptional aquatic life/high aesthetic value - Ecoregion Stream, Dissolved oxygen; Benthic macroinvertebrates (Bayer et al. 1992 and Davis 1998)

Guadalupe River - From the confluence of the Comal River in Comal County upstream to the Kendall/Kerr County line, with the exception of Canyon Reservoir (TNRCC classified stream segment 1812 and part of 1806).

Hydrologic function - Edwards Aquifer Recharge Zone
Riparian conservation area - Guadalupe River State Park
High water quality/exceptional aquatic life/high aesthetic value - Overall use (Texas Natural Resource Conservation Commission 1995); #2 Scenic river in Texas (National Park Service 1995)

Guadalupe River - From US 183 in Gonzales County upstream to Lake Gonzales Dam in Gonzales County (within TNRCC classified stream segments 1803 and 1804).

Threatened or endangered species/unique communities - Two of only four known remaining populations of endemic golden orb (Howells 1997)

Guadalupe River Tidal - From the confluence with Guadalupe Bay in Calhoun/Refugio County upstream to FM 447 in northwest Victoria County (TNRCC classified stream segment 1801 and part of 1803).

Biological function - Extensive freshwater and estuarine wetland habitat (Bauer et al. 1991)
Hydrologic function - Victoria Memorial Municipal Park; Guadalupe Delta Wildlife Management Area; One of the largest wetland reserve projects in the United States (Ortego 1999)
Riparian conservation area - Overall use (Texas Natural Resource Conservation Commission 1995)
Threatened or endangered species/unique communities - Whooping crane; Unique and extensive marshes (Bauer et al. 1991)

Honey Creek - From the confluence with the Guadalupe River upstream to its headwaters in northwest Comal County.

Riparian conservation area - Honey Creek State Natural Area
Threatened or endangered species/unique communities - Guadalupe bass (SOC), Cagle's map turtle (SOC), Honey Creek Cave salamander (SOC), and Texas salamander (SOC) (TPWD, 2000)

Mission River - From the confluence with Mission Bay in Refugio County upstream to the FM 136 crossing in Refugio County.

Biological function - Extensive freshwater wetland habitat (Bauer et al. 1991)

Nueces River - From US 90 in Uvalde County upstream to the Uvalde/Real/Edwards County line (within TNRCC classified stream segment 2112).

Biological function - Texas Natural Rivers System nominee, Top 100 Texas Natural Areas list (National Park Service 1995)
Hydrologic function - Edwards Aquifer Recharge Zone
High water quality/exceptional aquatic life/high aesthetic value - Exceptional aesthetic value (National Park Service 1995)

Sabinal River - From the US 90 crossing in Sabinal in Uvalde County upstream to the Uvalde/Bandera County line (within TNRCC classified stream segments 2110 and 2111).

Biological function - Texas Natural Rivers System nominee (National Park Service 1995)
Hydrologic function - Edwards Aquifer Recharge Zone
High water quality/exceptional aquatic life/high aesthetic value - Exceptional aesthetic value (National Park Service 1995)

San Marcos River - From a point 0.7 mile downstream of IH 35 in Hays County to a point 0.4 mile upstream of Loop 82 in San Marcos in Hays County (TNRCC classified stream segment 1814).

Biological function - displays significant overall habitat value considering degree of biodiversity and uniqueness observed in aquatic habitat (USFWS, 1996)
Hydrologic function - valuable hydrologic function relating to groundwater discharge of the Edwards Aquifer (Brune, 1981)
Riparian conservation area - several city and university parks
High water quality/exceptional aquatic life/high aesthetic value - high water quality and exceptional aquatic life use (TNRCC, 1996)
Threatened or endangered species/unique communities - Fountain darter (Fed.E.St.), Comal Springs riffle beetle (Fed.E./SOC); only known location of Texas wild rice (Fed.E.St.E) and San Marcos salamander (Fed.T/St.T) (USFWS, 1996)

San Marcos River State Scientific Area is the first inland state scientific area and shows the habitat of Texas wild rice.

San Marcos River - From the confluence with the Guadalupe River in Gonzales County upstream to a point 0.7 mile downstream of IH 35 in Hays County (TNRCC classified stream segment 1808).

Riparian conservation area - Palmetto State Park
Threatened or endangered species/unique communities - one of only four known populations of golden orb freshwater mussel (SOC) (L.A. Linam, 2001, pers. comm.)

San Miguel Creek - From the Atascosa/McMullen County line upstream to the SH 85 crossing in east Frio County.

High water quality/exceptional aquatic life/high aesthetic value - Ecoregion Stream, Dissolved oxygen (Bayer et al. 1992); Fish Bayer et al. 1992 and (Linam et al. 1999)

West Nueces River - From the confluence with the Nueces River in Uvalde County upstream to the Uvalde/Kinney County line.

Hydrologic function - valuable hydrologic function relating to groundwater recharge of the Edwards Aquifer (Brune, 1981)
Threatened or endangered species/unique communities - genetic refuge for pure strain Guadalupe bass (SOC) (G. Garrett, 1999, pers. comm.)

West Verde Creek - From the confluence with Middle Verde Creek in Medina County upstream to the Medina/Bandera County line.

Hydrologic function - valuable hydrologic function relating to groundwater recharge of the Edwards Aquifer (Brune, 1981)
Riparian conservation area - Hill Country State Natural Area

References

Bauer, J., R. Frye, B. Spain. 1991. A natural resource survey for proposed reservoir sites and selected stream segments in Texas. Texas Parks and Wildlife Department, Austin, Texas.

Bayer, C.W., J.R. Davis, S.R. Twidwell, R. Kleinsasser, G. Linam, K. Mayes, and E. Hornig. 1992. Texas aquatic ecoregion project: an assessment of least disturbed streams (draft). Texas Water Commission, Austin, Texas.

Brune, G. 1981. Springs of Texas: Volume 1. Branch-Smith, Inc., Fort Worth, Texas.
Garrett, G. 1999. Personal communication. Texas Parks and Wildlife Department, Ingram, Texas.

Howells, R.G. 1997. Distributional surveys of freshwater bivalves in Texas: progress report for 1996. Texas Parks and Wildlife Department, Management Data Series 144, Austin, Texas.

Linam, G.W., L.J. Kleinsasser, and K. Mayes. 1999. Regionalization of the index of biotic integrity for Texas streams (draft - in review). Texas Parks and Wildlife Department, River Studies Report No. 16, Austin, Texas.

Linam, L.A. 2001. Personal communication. Texas Parks and Wildlife Department, Wimberley, Texas.

National Wetlands Inventory. 1999. NWI map for Matagorda quadrangle. [http://www.nwi.fws.gov]

Ortego, B. 1999. Personal communication. Texas Parks and Wildlife Department, Victoria, Texas.

Sullivan, D. 1998. Personal communication. Texas Parks and Wildlife Department, Austin, Texas.

Texas Natural Resource Conservation Commission (TNRCC). 1996. Texas surface water quality standards. Texas Natural Resource Conservation Commission, Austin, Texas.

Texas Natural Resource Conservation Commission. 1995. Texas surface water quality standards. Texas Natural Resource Conservation Commission, Austin, Texas.

Texas Parks and Wildlife Department. 2000. Annotated County Lists of Rare Species. Wildlife Diversity Program, Wildlife Division, Austin, Texas.

U. S. Fish and Wildlife Service. 1996. San Marcos and Comal Springs and Associated Aquatic Ecosystems (Revised) Recovery Plan. U.S. Fish and Wildlife Service, Albuquerque, New Mexico.


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