To: Interested Parties

From: Water Resources Branch

RE: January 2004 monthly Water Quality Report

This is the Sabine River Authority Water Quality Report for January 2004. Water quality sampling was performed January 12th through January 15th. Recent weather (previous seven days) in the Sabine River Basin was cool, with daytime high air temperatures (Fahrenheit) from the mid 30s to the mid 60s at Lake Tawakoni and at Lake Fork. Toledo Bend Reservoir and Orange had daytime highs from the mid 40s to the mid 70s. Lows ranged from the low 20s to the upper 30s at Lake Tawakoni and at Lake Fork. Toledo Bend and Orange had lows ranging from the mid 20s to the mid 40s. The reservoir sites were mixed. During the 28 days since the December sample run, the Upper Basin received 0.51 and 1.56 inches of rainfall as recorded at Lake Tawakoni and Lake Fork, respectively. The week prior to the sample run, Lake Tawakoni recorded no rain and Lake Fork recorded 0.02 inches of rain. Toledo Bend and Orange received 2.37 and 3.0 inches, respectively, during the 28 days preceding the sample run.

Upper Sabine Basin Above Toledo Bend Including Lake Fork and Lake Tawakoni

For the January sample run, most parameter measurements at Upper Basin sites were consistent with water of high quality. Chlorophyll a values at LT23D, LT23A, and LF3 were above screening levels for lake sites. The nitrate value at SR14 was also above screening levels. No sites exceeded the stream standards numeric criteria for E. coli.


Lower Sabine Basin Including Toledo Bend to Morgan Bluff

The January monthly sampling results were indicative of water of high quality at most sites. The last significant amount of rainfall the area received was three days prior to the sample run. The level of Toledo Bend Reservoir was recorded at 167.45 feet with no discharge from the spillway or the generator at the time of sampling. Most reservoir sites showed signs of stratification, with some pH and dissolved oxygen differences throughout the water column. Nitrate values at TB8 and TB7A were above the screening levels, but all other parameters in the Lower Basin were within the stream standards.

Tidal Section of the Sabine Basin below Morgan Bluff

Most sites sampled in the tidal portion of the Sabine Basin had values that are consistent with water of high quality. The last significant rainfall the area received was four days prior to sampling. Most sites in this section of the Basin showed some signs of stratification with oxygen and pH differences throughout the water column. No anoxic conditions were found at any tidal station. Surface salinities were found at all but the two most northern tidal stations. Among the stations with surface salinity, the salinity values ranged from 2.0 to 3.0 ppt. The highest salinity, 14.0 ppt, was found at station SRT1 at the deepest depth measured. All parameters from the tidal sites were within stream standards.

 

This Report and additional data for these monitoring stations are available on our World Wide Web site (www.sra.dst.tx.us). If you have any questions or comments concerning this report, please contact:

 

      Upper Sabine Basin
Terry Wilson, Upper Basin Field Office Coordinator
903-878-2420 (twilson@sra.dst.tx.us)

      Lower and Tidal Sabine Basin
Jerry Wiegreffe, Lower Basin Field Office Coordinator
409-746-3284 (jwiegreffe@sra.dst.tx.us)

      If above are unavailable
John Payne, Special Projects Administrator
409-746-2192 (jpayne@sra.dst.tx.us)
or
Miles Hall, Resource Management/ Project Development Division Manager
409-746-2192 (mhall@sra.dst.tx.us)

 

Printed Monday, June 14, 2004 at 11:53