Skip to content. | Skip to navigation

Personal tools


Complaint Arrow Questions or Comments:

Environmental Flows

Committees, stakeholder and advisory groups, rules, and tools for assessing environmental flows.


The Legislature passed bills to develop, manage and preserve the water resources of the state and protect instream and freshwater inflows. The bills established the Environmental Flows Advisory Group and Science Advisory Committee and required TCEQ to adopt rules related to environmental flows. (House Bill 3 and Senate Bill 3, 80th Legislature, 2007)

What is Environmental Flow?

An environmental flow is an amount of water that should remain in a stream or river for the benefit of the environment of the river, bay, and estuary, while balancing human needs. (For the legislative definition of an environmental flow regime, see (Title 2, Texas Water Code, Section 11.002.16.)

Environmental Flows Advisory Group

Environmental Flows Science Advisory Committee

Basin and Bay Stakeholder Committees and Expert Science Teams

Environmental Flows Rules

Environmental Flows Resources

Environmental Flows for the Cypress Basin