Our Water Quality Improvement Program works to restore many of the more than 400 impaired water bodies in Texas, while also proactively protecting unimpaired watersheds. Learn more.
Arroyo Colorado Watershed Protection
We coordinate projects directed toward implementing the watershed protection plan and restoring the Arroyo Colorado.
Attoyac Bayou Watershed
We have worked with watershed stakeholders and others to develop a watershed protection plan that includes management recommendations for E. coli sources that are practical to manage and acceptable to stakeholders.
Big Elm Creek
We are addressing the E. coli impairment within the Big Elm Creek watershed by supplementing an existing dataset with bacteria and flow data for later decision making by stakeholders.
Mid & Lower Cibolo Creek Watershed
We are working with the San Antonio River Authority and stakeholders to implement a watershed protection plan.
Copano Bay Watershed
TWRI is working with local stakeholders and state agencies in the Mission and Aransas rivers watersheds, the two primary freshwater contributors to Copano Bay watershed.
Matagorda Basin Water Quality
We are working with communities within Matagorda Basin watersheds to address water quality concerns.
Davidson Creek & Deer Creek Water Quality
We are collecting water quality data and educating local stakeholders on the water quality concerns in these watersheds.
Navasota River Water Quality Improvement
We are working with watershed stakeholders to address water quality concerns and improve watershed health and function.
Neches River Basin
We are working with communities within Angelina and Neches Basin watersheds to address water quality concerns.
Petronila & San Fernando Creeks Watershed Planning
We are working with Texas Sea Grant, Coastal Bend Bays and Estuaries Program, Harte Research Institute at Texas A&M Corpus Christi, and the Nueces River Authority, local stakeholders and state agencies in the Petronila and San Fernando creeks watersheds.
Texas Bacterial Source Tracking Program
We are working with Texas A&M University and the University of Texas Health Science Center to expand the Texas E. coli BST library to enable identification of E. coli sources statewide.
Thompsons Creek Watershed
We are working with stakeholders to address water quality concerns for bacteria in the Thompsons Creek watershed.
Medina River Watershed
We are partnering with the San Antonio River Authority to develop a stakeholder-driven watershed protection plan to address water quality trends and issues throughout the Medina River watershed.
Evaluating Health Risks in Little Bay
Little Bay is a shallow estuary situated within Aransas Bay on the Texas Gulf Coast. This bay, recognized as a “gem of the Texas Coast,” attracts tourists from across the state to the Rockport/Fulton area and is a popular spot for swimming, boating, fishing, viewing wildlife, and more.
Middle Yegua
Middle Yegua Creek above Lake Somerville is a tributary in the Brazos River Basin. In 2010, the creek was first identified as impaired for primary contact recreation use, such as swimming and skin-diving, due to elevated E. coli concentrations.