If you recently purchased a property with a well, information can be obtained from your well driller or from the documentation from the sale of the property. Since 1966, licensed water well drillers have been required to submit well reports that include well location, depth, and construction; water level; local geology; names of driller and original owner.
You can also find information from the Texas Department of Licensing and Regulation (www.license.state.tx.us), the Texas Commission on Environmental Quality (www.tceq.state.tx.us) or the Texas Water Development Board (www.twdb.texas.gov).