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Rio Grande River Basin Monitor Summary

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Parameter Monitored POC First Valid Data Monitor Status
Coyanosa C709
    Surface Water Temperature 1 Sep 22, 2004 Active
Surface Water Temperature 3 Sep 6, 2011 Active
Water Flow Rate 1 Mar 9, 2005 Active
Water Flow Rate 3 Aug 31, 2011 Active
Water Velocity 1 Mar 9, 2005 Deactivated Feb 18, 2009
Gage Height 1 Mar 9, 2005 Active
Gage Height 3 Aug 31, 2011 Active
Surface Specific Conductance 1 Sep 22, 2004 Active
Surface Specific Conductance 3 Sep 6, 2011 Active
Total Dissolved Solids 1 Aug 19, 2011 Active
Surface Dissolved Oxygen 1 Sep 22, 2004 Active
Surface Dissolved Oxygen 3 Sep 6, 2011 Active
Surface Water pH 1 Sep 22, 2004 Active
Surface Water pH 3 Sep 6, 2011 Active
Pecos C710  Deactivated: Aug 25, 2016
    Surface Water Temperature 1 Sep 23, 2004 Deactivated Sep 24, 2015
Gage Height 1 Feb 22, 2005 Deactivated Aug 24, 2016
Surface Specific Conductance 1 Sep 23, 2004 Deactivated Sep 11, 2015
Surface Dissolved Oxygen 1 Sep 23, 2004 Deactivated Sep 11, 2015
Surface Water pH 1 Sep 23, 2004 Deactivated Sep 11, 2015
El Paso-Courchesne C718  Deactivated: Apr 13, 2006
    Surface Water Temperature 1 Feb 1, 2005 Deactivated Jan 19, 2006
Sample Depth 1 Feb 1, 2005 Deactivated Jan 19, 2006
Surface Specific Conductance 1 Feb 1, 2005 Deactivated Dec 11, 2005
Surface Dissolved Oxygen 1 Feb 1, 2005 Deactivated Jan 19, 2006
Surface Water pH 1 Feb 1, 2005 Deactivated Jan 19, 2006
Fort Quitman C719
    Surface Water Temperature 1 Feb 2, 2005 Deactivated May 9, 2007
Sample Depth 1 Feb 2, 2005 Deactivated May 9, 2007
Surface Specific Conductance 1 Feb 2, 2005 Deactivated May 9, 2007
Surface Dissolved Oxygen 1 Feb 2, 2005 Deactivated May 9, 2007
Surface Water pH 1 Feb 2, 2005 Deactivated May 9, 2007
Rio Grande at Castolon C720
    Surface Water Temperature 1 Jun 8, 2005 Deactivated Jun 18, 2014
Water Flow Rate 1 Jun 9, 2005 Active
Water Velocity 1 Jun 9, 2005 Deactivated Mar 1, 2010
Sample Depth 1 Jun 8, 2005 Deactivated Mar 21, 2006
Water Level 1 Jun 9, 2005 Deactivated Feb 23, 2007
Surface Specific Conductance 1 Jun 8, 2005 Deactivated Jun 18, 2014
Surface Dissolved Oxygen 1 Jun 8, 2005 Deactivated Jun 18, 2014
Surface Water pH 1 Jun 8, 2005 Deactivated Jun 18, 2014
Rio Grande at RGV C721
    Surface Water Temperature 1 Jun 8, 2005 Active
Water Flow Rate 1 Jun 8, 2005 Active
Water Velocity 1 Jun 8, 2005 Deactivated Mar 1, 2010
Sample Depth 1 Jun 8, 2005 Deactivated Mar 21, 2006
Water Level 1 Jun 8, 2005 Deactivated Feb 12, 2007
Surface Specific Conductance 1 Jun 8, 2005 Active
Surface Dissolved Oxygen 1 Jun 8, 2005 Active
Surface Water pH 1 Jun 8, 2005 Active
Lower Pecos River C729
    Surface Water Temperature 1 Feb 23, 2006 Active
Surface Water Temperature 3 Sep 7, 2011 Active
Water Flow Rate 1 Aug 5, 2007 Active
Water Flow Rate 3 Aug 31, 2011 Active
Gage Height 1 Feb 23, 2006 Active
Gage Height 3 Aug 31, 2011 Active
Surface Specific Conductance 1 Feb 23, 2006 Active
Surface Specific Conductance 3 Sep 7, 2011 Active
Total Dissolved Solids 1 Feb 24, 2009 Active
Surface Dissolved Oxygen 1 Feb 23, 2006 Active
Surface Dissolved Oxygen 3 Sep 7, 2011 Active
Surface Water pH 1 Feb 23, 2006 Active
Surface Water pH 3 Sep 7, 2011 Active
Pecos River near Sheffield C735
    Surface Water Temperature 1 Jul 19, 2006 Active
Surface Water Temperature 3 Sep 7, 2011 Active
Water Flow Rate 1 Aug 5, 2007 Active
Water Flow Rate 3 Aug 31, 2011 Active
Gage Height 1 Jul 19, 2006 Active
Gage Height 3 Aug 31, 2011 Active
Surface Specific Conductance 1 Jul 19, 2006 Active
Surface Specific Conductance 3 Sep 7, 2011 Active
Total Dissolved Solids 1 Aug 1, 2011 Active
Surface Dissolved Oxygen 1 Jul 19, 2006 Active
Surface Dissolved Oxygen 3 Sep 7, 2011 Active
Surface Water pH 1 Jul 19, 2006 Active
Surface Water pH 3 Sep 7, 2011 Active
Anzalduas Dam Near Pier 4 C736
    Surface Water Temperature 2 Oct 11, 2011 Active
Surface Specific Conductance 2 Oct 11, 2011 Active
Total Dissolved Solids 2 Oct 14, 2011 Active
Anzalduas Reservoir Hardwicke Farm C737  Deactivated: Jul 14, 2010
    Surface Water Temperature 1 Dec 4, 2006 Deactivated Jun 29, 2010
Surface Specific Conductance 1 Dec 4, 2006 Deactivated Jun 29, 2010
Total Dissolved Solids 1 Mar 1, 2007 Deactivated Jun 29, 2010
Surface Dissolved Oxygen 1 Dec 4, 2006 Deactivated Jun 1, 2010
Surface Water pH 1 Dec 4, 2006 Deactivated Jun 25, 2010
Salinity 1 Feb 27, 2007 Deactivated Nov 24, 2009
Rio Grande upstream of Presidio C757
    Surface Water Temperature 1 Jul 31, 2007 Active
Sample Depth 1 Jul 31, 2007 Deactivated Feb 10, 2009
Surface Specific Conductance 1 Jul 31, 2007 Active
Surface Dissolved Oxygen 1 Jul 31, 2007 Active
Surface Water pH 1 Jul 31, 2007 Active
Rio Grande downstream of Presidio C758
    Surface Water Temperature 1 Jul 31, 2007 Active
Sample Depth 1 Jul 31, 2007 Deactivated Jul 22, 2009
Surface Specific Conductance 1 Jul 31, 2007 Active
Surface Dissolved Oxygen 1 Jul 31, 2007 Active
Surface Water pH 1 Jul 31, 2007 Active
Rio Grande at Fosters Ranch C759
    Surface Water Temperature 1 Jul 31, 2007 Active
Gage Height 1 Jul 31, 2007 Deactivated Dec 14, 2009
Surface Specific Conductance 1 Jul 31, 2007 Active
Surface Dissolved Oxygen 1 Jul 31, 2007 Active
Surface Water pH 1 Jul 31, 2007 Active
Independence Creek C764
    Surface Water Temperature 1 Jul 17, 2008 Active
Surface Water Temperature 3 Sep 7, 2011 Active
Surface Specific Conductance 1 Jul 17, 2008 Active
Surface Specific Conductance 3 Sep 7, 2011 Active
Total Dissolved Solids 1 Jan 1, 2010 Active
Surface Dissolved Oxygen 1 Jul 17, 2008 Active
Surface Dissolved Oxygen 3 Sep 7, 2011 Active
Surface Water pH 1 Jul 17, 2008 Active
Surface Water pH 3 Sep 7, 2011 Active
Rio Grande at Roma TX C767
    Surface Water Temperature 2 Jan 11, 2012 Active
Surface Specific Conductance 2 Sep 9, 2011 Active
Total Dissolved Solids 2 Jan 11, 2012 Active
Devils River near Bakers Crossing C768  Deactivated: Jun 21, 2012
    Surface Water Temperature 1 Jul 17, 2008 Deactivated Jun 21, 2012
Surface Specific Conductance 1 Jul 17, 2008 Deactivated Jun 21, 2012
Surface Dissolved Oxygen 1 Jul 17, 2008 Deactivated Jun 21, 2012
Surface Water pH 1 Jul 17, 2008 Deactivated Jun 21, 2012
Rio Grande (Shuford Farms) C781  Deactivated: Jul 8, 2010
    Surface Water Temperature 1 Jul 9, 2009 Deactivated Jun 29, 2010
Water Level 1 Jul 9, 2009 Deactivated Jun 29, 2010
Surface Specific Conductance 1 Jul 9, 2009 Deactivated Jun 29, 2010
Total Dissolved Solids 1 Jul 9, 2009 Deactivated Jun 29, 2010
Surface Dissolved Oxygen 1 Jul 9, 2009 Deactivated Jun 1, 2010
Surface Water pH 1 Jul 9, 2009 Deactivated Jun 25, 2010
Rio Grande at Margo Farms C782  Deactivated: Jul 9, 2010
    Surface Water Temperature 1 Jul 9, 2009 Deactivated Jun 29, 2010
Water Level 1 Jul 9, 2009 Deactivated Jun 29, 2010
Surface Specific Conductance 1 Jul 9, 2009 Deactivated Jun 29, 2010
Total Dissolved Solids 1 Jul 9, 2009 Deactivated Jun 29, 2010
Surface Dissolved Oxygen 1 Jul 9, 2009 Deactivated Jun 1, 2010
Surface Water pH 1 Jul 9, 2009 Deactivated Jun 25, 2010
Pecos River near Girvin C785
    Surface Water Temperature 1 Aug 18, 2011 Active
Surface Water Temperature 3 Sep 12, 2011 Active
Water Flow Rate 1 Aug 31, 2011 Active
Water Flow Rate 3 Aug 31, 2011 Active
Gage Height 1 Sep 6, 2011 Active
Gage Height 3 Aug 31, 2011 Active
Surface Specific Conductance 1 Aug 18, 2011 Active
Surface Specific Conductance 3 Sep 12, 2011 Active
Total Dissolved Solids 1 Aug 19, 2011 Active
Surface Dissolved Oxygen 1 Aug 18, 2011 Active
Surface Dissolved Oxygen 3 Sep 12, 2011 Active
Surface Water pH 1 Aug 18, 2011 Active
Surface Water pH 3 Sep 12, 2011 Active
Pecos River Near Red Bluff NM C788
    Surface Water Temperature 1 Jun 23, 2011 Active
Surface Water Temperature 3 Sep 30, 2013 Active
Water Flow Rate 1 Aug 27, 2012 Active
Surface Specific Conductance 1 Jun 24, 2011 Active
Surface Specific Conductance 3 Sep 30, 2013 Active
Rio Grande Harlingen ID 1 C789
    Surface Water Temperature 2 Jan 10, 2012 Active
Surface Specific Conductance 2 Jan 10, 2012 Active
Total Dissolved Solids 2 Jan 10, 2012 Active
Rio Grande near United ID C791
    Surface Water Temperature 2 Oct 13, 2011 Active
Surface Specific Conductance 2 Oct 13, 2011 Active
Total Dissolved Solids 2 Oct 21, 2011 Active
Rio Grande near Hildalgo ID 18 C792
    Surface Water Temperature 1 Dec 2, 2010 Active
Surface Water Temperature 2 Oct 12, 2011 Active
Surface Specific Conductance 1 Dec 2, 2010 Active
Surface Specific Conductance 2 Oct 12, 2011 Active
Total Dissolved Solids 1 Dec 2, 2010 Active
Total Dissolved Solids 2 Oct 21, 2011 Active
Rio Grande near HC&CC ID 9 C793
    Surface Water Temperature 2 Jan 10, 2012 Active
Surface Specific Conductance 2 Jan 10, 2012 Active
Total Dissolved Solids 2 Jan 10, 2012 Active
Rio Grande ds of Rio San Juan Confl C795  Deactivated: Jan 11, 2012
    Surface Water Temperature 1 Jul 5, 2011 Deactivated Jan 11, 2012
Surface Specific Conductance 1 Jul 5, 2011 Deactivated Jan 11, 2012
Total Dissolved Solids 1 Jul 5, 2011 Deactivated Jan 11, 2012
Rio Grande ds of Arroyo Los Olmos C796
    Surface Water Temperature 2 Jan 11, 2012 Active
Surface Specific Conductance 2 Aug 26, 2011 Active
Total Dissolved Solids 2 Jan 11, 2012 Active
Pecos River near Orla TX C798
    Surface Water Temperature 1 Apr 4, 2012 Active
Surface Water Temperature 3 Jul 5, 2012 Active
Water Flow Rate 1 Apr 1, 2012 Active
Water Flow Rate 3 Apr 1, 2012 Active
Gage Height 1 Apr 4, 2012 Active
Gage Height 3 Apr 1, 2012 Active
Surface Specific Conductance 1 Apr 9, 2012 Active
Surface Specific Conductance 3 Jul 5, 2012 Active
Surface Dissolved Oxygen 1 Oct 30, 2014 Active
Surface Dissolved Oxygen 3 Jan 15, 2015 Active
Surface Water pH 1 Oct 30, 2014 Active
Surface Water pH 3 Jan 15, 2015 Active
Pecos River near Langtry TX C799
    Surface Water Temperature 1 Apr 4, 2012 Active
Surface Water Temperature 3 Apr 1, 2012 Active
Surface Specific Conductance 1 Apr 4, 2012 Active
Surface Specific Conductance 3 Apr 1, 2012 Active
Surface Dissolved Oxygen 1 Apr 4, 2012 Active
Surface Dissolved Oxygen 3 Apr 1, 2012 Active
Surface Water pH 1 Apr 4, 2012 Active
Surface Water pH 3 Apr 1, 2012 Active
RioGrande DWNS SantaElena CNYN C803
    Surface Specific Conductance 1 Sep 13, 2014 Active
Balmorhea Pool Discharge Canal C808
    Surface Water Temperature 1 May 10, 2017 Active
Sample Depth 1 May 10, 2017 Deactivated Oct 8, 2020
Surface Specific Conductance 1 May 13, 2017 Active
Surface Water pH 1 Aug 8, 2018 Active

PLEASE NOTE:  This data has not been verified by the TCEQ and may change. This is the most current data, but it is not official until it has been certified by our technical staff. Data is collected from TCEQ ambient monitoring sites and may include data collected by other outside agencies. This data is updated hourly. All times shown are in local standard time unless otherwise indicated.

Following EPA reporting guidelines, negative values may be displayed in our hourly criteria air quality data, down to the negative of the EPA listed Method Detection Limit (MDL) for the particular instrument that made the measurements. The reported concentrations can be negative due to zero drift in the electronic instrument output, data logger channel, or calibration adjustments to the data. Prior to 1/1/2013, slightly negative values were automatically set to zero.