Texas Water Development Board (TWDB)
http://www.twdb.texas.gov/
Texas Commission of Environmental Quality (TCEQ)
http://www.tceq.state.tx.us/
Texas Department of Agriculture
http://texasagriculture.gov/
Texas Natural Resources Information System (TNRIS)
http://www.tnris.org/
Texas Water Resources Institute (TWRI)
http://twri.tamu.edu/
US National Water Resources Information:
http://water.usgs.gov/
http://water.epa.gov/
http://www.epa.gov/waters/data/downloads.html
http://water.usgs.gov/nawqa/pnsp//
http://water.usgs.gov/nawqa/nawqa_sumr.html
http://water.usgs.gov/nawqa/
Soil and Water Modeling
http://swatmodel.tamu.edu/software/arcswat/
http://apex.tamu.edu/
http://soils.usda.gov/
Geospatial Data
http://water.usgs.gov/maps.html
http://water.usgs.gov/GIS/huc.html
http://seamless.usgs.gov/website/seamless/viewer.htm
http://www.mrlc.gov/
http://nationalatlas.gov/
Agricultural Data
http://www.nass.usda.gov/Data_and_Statistics/
http://www.ers.usda.gov/data/
Weather Data
http://beaumont.tamu.edu/climaticdata/CountryMap.aspx?index=2_14&name=UNITED+STATES
http://www.ncdc.noaa.gov/oa/ncdc.html
http://ars.usda.gov/Research/docs.htm?docid=19388
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