Jurisdictional Determination and Wetland Delineations

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…

Threatened and Endangered Species Assessment

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…

Instream Flow

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…

Environmental Restoration

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…