The Trinity River Authority of Texas was created in 1955 by the 54th Legislature. The political subdivision of TRA includes all or part of seventeen Texas counties within the Trinity River Basin.
When TRA was created by the state legislature, it was assigned three overall functions. The first function was the creation and maintenance of a basin wide master plan for the entire Trinity River watershed.
The second major function assigned by the legislature was serving as a local sponsor for federal water projects. The authority has successfully sponsored four US Army Corps of Engineers multiple-purpose projects.
The third function assigned by the Texas Legislature was providing water and wastewater related services within the Trinity River Authority territory.
Services currently provided by TRA include wastewater treatment, water treatment (potable water production), reservoir facilities, recreation facilities and as a conduit for tax exempt financing for cities in the areas of water and wastewater treatment; and for industry in the areas of air and/or water pollution control.
The Authority exists without the benefit of a direct tax base or state and federal appropriations. TRA provides services only to parties requesting service and only to the degree that service is actually delivered. If an operating project of TRA's inadvertently makes a profit, the surplus is returned to the customer entities served by that particular project in the form of cash or credit toward the next year's billings. – less–ZoomInfo