- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
- For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
- Not all sites have reports available for every water year.
Some records listed in the "Period of Record" for surface water and water quality may not be available electronically.
The lake is formed by a rolled earthfill dam 1.3 mi long, a concrete spillway 464 ft wide, and 6.6 mi of earthen dikes. The dam was completed and storage began May 1980. The spillway has twelve 35 ft wide by 22.5 ft high radial gates to discharge flood flows to the river channel downstream. Dual level municipal and industrial outlet works structures are located on each side of the spillway. These concrete structures provide for access to a conduit through the dam and for connecting a water delivery system. The river outlet works, a concrete structure with multi-level intake gates, discharge into the Navidad River through an 8 ft by 10 ft downstream conduit. The dam is owned by the Lavaca-Navidad River Authority. The primary purpose of Lake Texana is to provide municipal and industrial water supply of 75,000 acre-ft annually, and to provide recreational, fish and wildlife facilities for the public. The lake is not designed to store floods; therefore, flooding both downstream and upstream remains approximately the same as conditions were before construction. Data regarding the dam are given in the following table:
Elevation (feet) Top of dam............................................................... 55.0 Top of gate.............................................................. 45.3 Crest of spillways (tainter gates sill).................................. 23.0Beginning in Water Year 2006, water-quality data that were published with this site are now published separately as:
Site ID Site name 285331096343501 Lake Texana Site AC near Edna, Tx 285326096342101 Lake Texana Site AL near Edna, Tx 285534096322301 Lake Texana Site BC near Edna, Tx 285816096320201 Lake Texana Site CC near Edna, Tx 290042096331401 Lake Texana Site DC near Edna, Tx 285940096312101 Lake Texana Site EC near Edna, Tx
