Angelina River at SH 21 - TCEQ ID: 10630

Site Description

Angelina River at SH 21; 11.17 km East Northeast of Alto.

Segment Description

Segment 0611 - Angelina River Above Sam Rayburn Reservoir. This freshwater stream encompasses a length of 104 miles and extends from the Upper Angelina sub-basin to the Lower Angelina sub-basin. Segment 0611 originates from the aqueduct crossing 0.6 miles upstream of the confluence of the Paper Mill Creek in Angelina/Nacogdoches County to the confluence of Barnhardt Creek and Mill Creek at FM 225 in Rusk County. The designated uses for this segment include contact recreation, high aquatic life use, fish consumption use, public water supply use, and general use. This segment has two areas that are currently listed on the 303(d) list due to bacteria. The listings were placed on the 303(d) list in the year 2000 and are currently categorized as 5a (2008), indicating a total maximum daily load (TMDL) is underway or scheduled.

Monitoring Performed Quarterly

Field Parameters Conventional Parameters Bacterial Parameters
Dissolved Oxygen Ammonia-N E. coli
Days Since Last Significant Rainfall Chloride  
Flow Severity Chlorophyll-a  
Instantaneous Stream Flow Pheophytin-a  
pH Sulfate  
Present Weather Total Dissolved Solids (TDS)  
Secchi Transparency Total Nitrate+Nitrite  
Specific Conductance Total Phosphorus  
Total Water Depth Total Suspended Solids (TSS)  
Water Temperature    



  • Upstream

    Facing north, looking upstream. Photo taken 2010-11-22

  • Downstream

    Facing south, looking downstream. Photo taken 2010-11-22

  • Opposite Bank

    Facing east, looking across river to opposite bank. Photo taken 2010-11-22

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