Water School

No one can impound the waters of the State of Texas without permission from the state, as expressed through the issuance of a water right or water permit.  A property owner, even if they own both sides of a stream, may not be able to build a dam on that stream without first seeking the permission of the state.  If you are planning on building a lake, it is best that you check with the Texas Commission on Environmental Quality (TCEQ) and let them know your plans.