TPDES permits are administered by the Texas Commission on Environmental Quality (TCEQ) and required under the Clean Water Act (CWA) for the discharge of wastewater (domestic and industrial), including discharges from concentrated animal feeding operations (CAFOs) and stormwater, among others. Stormwater Permit Stormwater permits are a type of TPDES general water quality permit for stormwater…
Required by the Clean Water Act and administered by the United States Army Corps of Engineers (USACE), these permits are typically called Section 404 Permits, dredge and fill permits or USACE Section 404 permits. These permits are required for any impacts to jurisdictional waters and adjacent wetlands. Various projects, including land development, infrastructure, water resources,…
The Rivers and Harbors Act Section 10 has similar requirements to Section 404; however, it deals strictly with tidally influenced waters.
Section 401 of the Clean Water Act (CWA) requires a state-issued Section 401 Water Quality Certification as part of both Section 404 and Section 10 Permits. In the State of Texas, the Texas Commission on Environmental Quality (TCEQ) issues a Section 401 Water Quality Certification on all Section 404 Permits.
As required by the Texas Administrative Code Chapter 69, a Sand and Gravel Permit is administered by the Texas Parks and Wildlife Department (TPWD) and required for the disturbance of sediment materials within navigable jurisdictional waters or the disturbance of the channel or bed.
Clean Water Act (CWA) Sections 404 and 401 and the Rivers and Harbors Act Section 10 provide a regulatory framework for regulating the dredge and fill of waters of the United States, including wetlands. Permitting is administered by the USACE. Arroyo staff have completed numerous stream/wetland assessments, wetland determinations and wetland delineations. The field data…
Endangered Species Act (ESA) requirements are part of numerous State and Federal permit processes. Arroyo Staff have completed studies which fulfill ESA requirements. Work has included summarizing data and information from numerous State and Federal databases, literature review and onsite data collection. Arroyo staff led field efforts to determine Threatened and Endangered Species presence and…
Arroyo staff have supported The Brazos River Authority (BRA) with instream flow studies as part of a Water Management Plan (WMP) under the current draft of the System Operation Permit. Arroyo staff have worked with the BRA and other state environmental resource agencies to design and execute an effective work plan that identifies necessary environmental…
Staff at Arroyo worked to improve critical habitat for the Comal Springs Riffle Beetle, a federally endangered species in Spring Run 3 and Landa Lake in New Braunfels, Texas. This work included: bank stabilization and re-profiling, construction of erosion control structures, exotic vegetation removal, revegetation of the native riparian plant community, fine sediment removal from…
