our mission and vision our history 2013 2018 strategic plan board of directors staff groups media room glossary tra and social media facilities general office southern region office wastewater treatment facilities water treatment and distribution water storage business services conflicts of interest purchasing parts services & supplies opportunities construction project opportunities financial information register as a vendor property owner permits and licenses at lake livingston landowner s bill of rights basin planning history of water quality clean rivers program reports region c water planning village creek lake arlington recreation wolf creek park wolf creek park on facebook reservations campsite map park fees park rules property owner permits and licenses at lake livingston safety ordinances lake livingston dam on twitter lake river data interactive map clean water for a healthy environment the trinity river authority of texas is a conservation and reclamation district that provides water from reservior facilities water and wastewater treatment along with recreation and reservoir facilities within the nearly 18 000 square mile trinity river basin . tra also maintains a master plan for basin wide development and serves as a conduit for tax exempt financing for municipal projects and as a local sponsor for federal water projects . each tra operating project is an independent financial entity and tra receives no tax revenues or appropriations . connect with tra previousnext lake information lake livingston dam discharge loading ... level loading ... more info current news doing business with tra registerconflicts of interestregister to receive notifications on publicly advertised procurement opportunities and bid results.construction project opportunitiesparts services supplies opportunitiesbidding procedures texas veterans portal texas veterans portal trinity river authority about us facilities business services basin planning recreation lake river data careers contact us trinity river authority internet marketing by masterlink