Sabine River Watershed Management Program
The Sabine River Authority (SRA) is using an integrated approach to address water quality issues. This comprehensive program includes the following components:
Basin Steering Committee
Public Participation and Outreach
Data Management and Subwatershed Inventories
Quality Assurance Project Plan (QAPP)
Geographic Information System
Water Quality Monitoring
And the World Wide Web Project
This integrated approach to water quality management provides for the best use of limited resources. This is accomplished through the subwatershed inventory, data analysis, and screening studies, which identify areas of water quality concerns or possible concerns, and focuses additional monitoring on problem areas. The coordination of state, regional, and local entities reduces duplication of effort in addressing water quality issues. Encouraging public participation increases the awareness of the impact of human activities on water quality.
The SRA completed a Comprehensive Sabine Watershed Management Study in 1999, to address water supply as well as water quality in the Sabine Basin. This plan was developed in conjunction with the Texas Water Development Board. This plan updated the 1985 Update of the Master Plan for the Sabine River. The plan takes an overall look at Basin development including such issues as water need, water supply, the environment, conservation, economic development, and natural resources among others. The goal of this planning is to implement a program to satisfy the water needs of the Sabine Basin in a timely and cost-effective manner. The combination of this study with the Texas Clean Rivers Program (TCRP) represents a holistic approach to water management.
Basin Steering Committee
The Sabine Basin Steering Committee allows stakeholders to have an active role in addressing water quality issues in the Sabine Basin. The Basin Steering Committee Meetings are held in three locations to encourage participation from all of the stakeholders in the Basin. With an emphasis on stakeholder involvement, the SRA invites water supply corporations, permitted dischargers, council of governments, city, and county officials to become Steering Committee members. Private citizens and environmental organizations are also urged to join the Committee. Interested parties should contact the SRA to be added to the contact list. Membership in the Committee has grown from 65 to 138 members since 1991.
Public Participation and Outreach
Texas Watch training has continued in the Upper Sabine Basin with continued support for students at Jarvis Christian College with ten sites in the Hawkins area, Kilgore College with a site near their campus, the City of Longview with several sites in the Longview area, and a Hallsville High School teacher with two sites. Texas Watch data from the Longview watershed was utilized with other professional data collected by the SRA in a special study of Grace Creek and its major tributaries in a report turned in to the TNRCC in January. The SRA met with Cynthia Ward, a Hallsville High School teacher. She is monitoring Potters Creek and has noticed considerable improvement in the stream since an effluent was moved from an upstream site.
In the lower Sabine Basin, training and support has also continued with the help of area schools. Students at Little Cypress-Mauriceville High School monitor two sites near their school, one of which was also monitored by SRA as a part of a special study. Also, a Texas Watch Volunteer Monitor is actively monitoring one site on the South Prong of Big Sandy Creek in Reach 4. Students in the Orange area also learn about monitoring from the West Orange Cove School District Nature Classroom on Adams Bayou. SRA sent two representatives to the 2001 EPA/Texas Watch Meeting of the Monitors in San Marcos on 3/28/01-3/30/01.
Groups or individuals interested in citizen monitoring should contact SRA for additional details. Additional information on citizen monitoring can be found at the Texas Watch website. The site is hosted by Southwest Texas State University and can be found at www.texaswatch.geo.swt.edu.
Water quality data collected by the City of
Longview, and Eastman Chemical has been included in the SRA QAPP.
is monitoring water quality at two sites on Lake Cherokee, one of the city’s
drinking water supplies. Eastman collects quarterly samples at six Sabine River sites and
at their point of discharge to provide additional metals data for Stream
Segment 0505. The City of Longview
monitoring includes two sites on Lake Cherokee. Monitoring under an approved QAPP allows the data to be used by
the TNRCC in updating surface water standards and wastewater permit criteria.
Data Management and Subwatershed Inventories
The collection, management, and analysis of water quality data is accomplished through an integrated program that includes a Data Management Plan, a comprehensive monitoring program, and statistical analyses of historical and current data. The Data Management Plan was updated in September 1999 and is reviewed on an annual basis. The data collection program is discussed below. Data analyses are conducted according to guidelines set forth by the Clean Rivers Program.
Inventories are being maintained by SRA of all
factors that can impact water quality for the Sabine Basin and placed into the
GIS as layers.
Subwatersheds can then be analyzed based on the specific factors within
the subwatershed. Data sets for the
inventories have been received from a number of sources including
municipalities, government agencies (local, state, and federal), and
universities. Data sets that include
water quality analyses must first be reviewed to determine the quality
assurance associated with the data meets the criteria stated in the SRA QAPP. Other data sets are also reviewed in accordance
with the SRA Data Management Plan. In
addition to layers for hydrology and highways the data sets include:
Water Quality Data
Solid Waste Sites
Storm Water Permits
USGS Flow Stations
As other data sets become available to SRA they are assimilated into the Subwatershed Inventory.
Quality Assurance Project Plan
The Quality Assurance Project Plan (QAPP) was updated in December 2001. This document includes all of the details about the SRA monitoring programs, the project definition and background, and all of the quality assurance requirements to ensure the data collected are accurate. The QAPP also ensures that the data collected are representative of the water body being sampled.
Geographic Information System
Information System (GIS) is a tool used to examine all of the
factors that influence water quality. The SRA GIS provides analysis and spatial
representation of this data. This allows the relationships of several data sets
to be analyzed or viewed in this format. Many layers of information are
available through the Internet for use by stakeholders and other interested
entities. The following summarizes the
recent developments in the SRA GIS:
Existing datasets in the SRA library are
continually updated. Many
additional datasets are being
downloaded from the Internet. Some of the datasets downloaded include: National
Wetland Inventories, USGS Quads 100K and 250K, 1999 TIGER Line Files, Census Data,
Louisiana DOQs, and Louisiana Base Map Data. SRA has received Certificate of Convince and
Necessity (CCN) data as GIS coverage from TNRCC. These are areas that can be
served by various water and wastewater service providers. SRA received this
information for all counties that intersect the Sabine Basin. While this is
work in progress it promises to be important in future analyses.
applied to the Railroad Commission to receive important datasets from their GIS
department. This is invaluable data that can help
SRA analyze subwatersheds. This data should include wells and pipelines with
activities include maintaining and developing relationships with
Groups as well as other agencies and Universities such as SFA FRI, TNRIS and
DIR. TNRIS is currently working on a base mapping initiative which will provide
Texas with highly accurate and attributed base maps layers. These will be a
great improvement over current data. SRA received SSURGO
Soil data for several counties and contour data is pending.
Water Quality Monitoring
The SRA conducts water quality monitoring throughout the Sabine Basin to identify and locate water quality concerns and impairments. The monitoring program is designed to allow for the temporal and spatial analysis of water quality trends. Other aspects of the program include the collection of data on subwatersheds lacking sufficient data to assess their water quality.
Water quality monitoring includes:
· Fixed Station Monitoring – to delineate overall water quality throughout the Sabine Basin
· Systematic Subwatershed Monitoring – to collect data on subwatersheds not included in the Fixed Station Monitoring
· Targeted Monitoring – to provide data for permit development for wastewater dischargers
· Special Studies – conducted on priority subwatersheds to locate and identify sources of concerns and impairments
The SRA Fixed Station Monitoring Program for 2001 included 39 stations on the mainstem and reservoirs. The stations are sampled monthly for routine parameters. Active stations for Fixed Station Monitoring were selected on the basis of relative position (upstream or downstream) to point source discharges, water supply intakes, proximity to industrialized areas of the Basin, representative coverage of reservoirs, and other land use activities that have the potential to impact water quality.
The SRA Systematic Subwatershed Monitoring utilizes biological screening studies in combination with routine physical and chemical parameters to provide data on the health of aquatic life and long-range water quality protection. The screening studies provide information on the health of aquatic life and provide toxics information to protect human health. The focus of these tests is in subwatershed areas where this information is lacking. The biological tests include ambient toxicity tests (AT), and rapid bioassessments (RBA) with macroinvertebrate and fish collections. Water quality samples are also collected for physicochemical parameters to aid in determining long-term trends in water quality for the routine water quality parameters. This additional monitoring program complements the existing Fixed Station Monitoring by providing information on the many subwatersheds not covered by Fixed Station Monitoring. The Subwatershed Screening Program also includes field investigations to provide data on subwatersheds that have never been sampled.
Sampling site locations and monitoring parameters are reviewed each year at coordinated monitoring meetings with all of the entities conducting water quality monitoring in the Sabine Basin. Adjustments are made in the various programs to reduce duplication of effort and ensure that all areas are appropriately monitored. Systematic monitoring in 2001 focused on subwatersheds in Reaches 4 and 5. Subwatershed sampling locations were selected using a subwatershed ranking system that included previous bioscreening results, historical data, and the subwatershed inventory of all known factors that could influence water quality.
The SRA did not conduct Targeted Monitoring during
At this time all of
the permitted discharges in the Sabine Basin have adequate water quality data
on their receiving streams to provide suitable
atrazine has recently come under a lot of scrutiny in the Lake Tawakoni
watershed after the reservoir was placed on the 303(d) List as a possible
threat to future water use. Samples
from water treatment facilities showed low levels of atrazine, but the levels
never exceeded allowable limits , in
drinking water. SRA began monthly
sampling for atrazine in April 2000, at three sites in Lake Tawakoni. This is a cooperative effort with the TNRCC
in an effort to resolve the atrazine concerns.
Levels detected in the reservoir have been well below allowable
limits. Sampling is scheduled to
continue for at least three years. SRA
participates in periodic meetings of the Surface Water Protection Committee,
which is composed of state and local parties associated with atrazine
monitoring and education.
The Grace Creek Special Study was completed in Reach 5 and the final report submitted to the TNRCC in January 2002. Completion of the Rabbit Creek Special Study in Reach 5 is awaiting a rain event sample. The Hawkins Creek Special Study in Reach 5 is scheduled for 2002.
Lower Basin Special Studies began in September 1999 in Reach 1 and Reach 4 continued until September 2001. Subwatersheds sampled included Little Cypress Bayou, and Palo Gaucho Bayou. In September 2001 a Special Study was begun in Reach 2. The Caney Creek Subwatershed is being sampled during this study.
Section 303(d) of the Clean Water Act
The Clean Water Act in Section 303(d) requires that water bodies not meeting established water quality standards be listed as impaired and reported to the Environmental Protection Agency (EPA). The Program Guidance for the Texas Clean Rivers Program requires the Planning Partners to analyze the results of the data screening in conjunction with other factors affecting water quality to identify and describe the reason for the concern. The SRA provided comments to the TNRCC on the Draft 2002 303(d) List (http://www.tnrcc.state.tx.us/water/quality/02_305b/sabine.html); however, the final list has not been submitted to EPA at this time. Water bodies of concern are addressed in the Summary of Sabine Basin Water Quality section of this report.
Summary of Sabine Basin Water Quality
Description: Sabine River and its drainage from Sabine River Confluence into Sabine Lake (river mile 0) to Morgans Bluff (river mile 25.1) in Orange County. This Reach is divided into 14 subwatersheds and covers 348.48 square miles. Eighty-six percent of the reach is in Texas and 14% is in Louisiana. This reach includes Segments 0501 (Sabine River Tidal), 0508 (Adams Bayou Tidal), and 0511 (Cow Bayou Tidal). Although some areas are quite rural, much of this reach is dominated by two cities with populations greater than 5000.
Water Quality: Data analyses have indicated
water quality problems in three subwatersheds.
The Adams and Cow Bayou Subwatersheds are impaired due to low dissolved
oxygen, high fecal coliforms, and high nutrients. The special studies indicated the impairments were due to both
point and non-point sources. The
non-point sources include large populated areas using inadequate on-site
systems. Results from the Little
Cypress Bayou Subwatershed special study show impairment due to low dissolved
oxygen, high fecal coliforms and high nutrients. Little Cypress Bayou’s impairments are further compounded due to
little or no flow except at periods of high rainfall.
Members of the
Sabine BasinSteering Committee expressed concerns for zinc and copper
requirements in wastewater permits. SRA
will continue to collect additional data on zinc and copper to aid in
determining appropriate permit limits.
The SRA 2001 Fixed Station Monitoring includes monthly monitoring at
five sites in Reach 1. SRA monitored three sites in a special study in Little
Cypress Bayou. Systematic Monitoring
for this Reach also includes two sites in the Adams Bayou Subwatershed and two
sites in the Cow Bayou Subwatershed as a follow up to special studies conducted
from 1998 to 1999. Measurements of
24-hour dissolved oxygen were performed three times in each of these
Subwatersheds, and will be measured an additional two times during 2002.
Description: Sabine River and its drainage from Morgans Bluff (river mile 25.1) to a point that includes Caney Creek (river mile 95.24) in Newton County. This Reach is divided into 9 subwatersheds and covers 1103.15 square miles. Three-quarters of the reach is in Texas and 25% is in Louisiana. Reach 2 includes the lower portion of Segment 0503 (the Sabine River below Toledo Bend) and Segment 0513 (Big Cow Creek). This is largely a rural area with no major industries or cities.
Water Quality: Data analyses have shown
water quality problems in two subwatersheds in Reach 2. The Nichols Creek Subwatershed was added to
the draft 303(d) List due to low dissolved oxygen and high fecal coliform
bacteria levels. The conditions in
Nichols Creek appear to be due to ambient conditions and no biological
impairments have been observed. There
are no permitted discharges in this sparsely populated Subwatershed. The 303(d) List also included the Big Cow
Creek Subwatershed (Segment 0513) due to elevated levels of fecal coliform
bacteria. Recent data indicate the
levels of fecal coliform bacteria are within the acceptable limits, and the
Subwatershed has since been taken off the list. This Subwatershed contains only one municipal wastewater discharge
and no other densely populated areas.
Non-point sources include large areas of
A special study was begun in the Caney Creek Subwatershed in September
2001. The data from this study will be
compared to earlier data from the Subwatershed to see if any changes have
The SRA is monitoring three sites in Reach 2 for 2001 in the Fixed
Station Monitoring, including one site located in the SRA main canal. SRA is monitoring two sites in a special
study on Caney Creek.
Description: Sabine River and its drainage from above the Caney Creek Confluence (river mile 95.24) to Toledo Bend Dam (river mile 156.45). This Reach is divided into 8 subwatersheds and covers 364.28 square miles. Seventy-seven percent of the reach is in Texas 23% is in Louisiana. Reach 3 includes the upper portion of Segment 0503 (the Sabine River below Toledo Bend). This is largely a rural area with no major cities or industries.
Water Quality: The data analyses indicate water quality problems in only one subwatershed in Reach 3. The Bayou Anacoco Subwatershed, located in Louisiana, has been shown to have concerns or possible concerns due to fecal coliforms and nutrients. Data collected in the 2000 sampling indicate the levels of fecal coliform bacteria are within the acceptable limits.
Monitoring: The SRA Fixed Station Monitoring in Reach 3 includes five monitoring sites including one site in the Bayou Anacoco Subwatershed.
Description: Sabine River from Toledo Bend Dam (river mile 156.45) in Newton County to a point which includes Murvaul Creek Confluence (river mile 291.2) in Panola County. This Reach is divided into 21 subwatersheds and covers 2932.82 square miles. Sixty-eight percent of the reach is in Texas with 32% in Louisiana. Reach 4 includes Segment 0504 (Toledo Bend Reservoir) and Segment 0509 (Lake Murvaul) both of which are classified for water supply. This reach is dominated by Toledo Bend Reservoir and has no major cities or industries.
Water Quality: Concerns have been identified
in Toledo Bend Reservoir associated with
Subwatersheds in this Reach. Water
quality problems in the San Miguel Bayou Subwatershed, located in Louisiana,
include low dissolved oxygen, high fecal coliform levels and high levels of
nutrients. Palo Gaucho Bayou, a
tributary to Toledo Bend, was listed as partially supporting the aquatic life
use due to toxicity in water. In the
Tenaha Creek Arm of the reservoir, low dissolved oxygen levels were observed in
the summer months, but the low values appear to be due to ambient conditions
and no biological impairments were observed.
The Toledo Bend reservoir was included on the 303(d) List for mercury in
fish tissue. The Texas Department of
Health fish consumption advisory is still in effect for largemouth bass at
Toledo Bend Reservoir due to elevated levels of mercury (http://www.tdh.state.tx.us/bfds/ssd/images/etexas-fish.jpg).
Monitoring: The SRA Fixed Station Monitoring includes 11 sites in Reach 4. One site on Tenaha Creek is being monitored in the Systematic Monitoring Program.
Description: Sabine River and its drainage from above Murvaul Creek Confluence (river mile 291.2) in Panola County to a point which includes Glade Creek Confluence (river mile 397.95) in Gregg County. This Reach is divided into 24 subwatersheds and covers 1629.18 square miles. Segment 0510 (Lake Cherokee, a water supply reservoir) is included in Reach 5. Also included is Segment 0505 (Main-stem of the Sabine River), which is used extensively for water supply. Reach 5 has the highest concentration of population in the Sabine Basin. There are numerous industries in this reach as well as six cities with populations above 5000.
Water Quality: Water quality concerns have been identified in five Subwatersheds in this Reach. The concerns and possible concerns in Reach 5 include biological impairments, low dissolved oxygen, and high fecal coliform bacteria. Low dissolved oxygen levels were occasionally observed in Hatley Creek. Ambient toxicity tests in the Mason Creek Subwatershed showed lethality in about 18% of the samples, but the rapid bioassessments showed no impairments. High nutrients were observed in both the Grace Creek and Rabbit Creek Subwatersheds. High levels of fecal coliform bacteria were also found in Grace Creek. In the Hawkins Creek Subwatershed low dissolved oxygen levels and elevated levels of dissolved solids were detected.
Monitoring: The SRA Fixed Station Monitoring includes six main-stem river sites in Reach 5. A non-point study was completed in the Grace Creek Subwatershed to delineate concerns identified in the 1999 assessment. The Rabbit Creek Subwatershed Special Study is pending a rain event sample before completion sometime in 2002. The Hawkins Creek Subwatershed Special Study is scheduled for 2002. Eastman Chemical personnel are monitoring six sites in Reach 5. SRA has trained Eastman Chemical field personnel in the TNRCC metals sampling protocol and Eastman has been collecting additional samples for several metals under the umbrella of the SRA QAPP since 1998. Personnel from TNRCC and the City of Longview are sampling two sites in Lake Cherokee. The Longview sampling program is also under the SRA QAPP.
Description: Sabine River below Lake Tawakoni, From above Glade Creek Confluence (river mile 397.95) in Gregg County to Iron Bridge Dam (river mile 514.5). This reach is divided into 27 subwatersheds and covers 1977.13 square miles. This reach includes Lake Fork Reservoir (Segment 0512), which is a public water supply reservoir. This reach also includes Segments 0506, 0514, and 0515. This is largely a rural area, but has numerous dairies primarily on Segment 0512.
Water Quality: Water quality concerns and
possible concerns have been identified in five Subwatersheds in
Reach 6. Ambient toxicity tests in
the Little White Oak Creek Subwatershed showed lethality in about 20% of the
samples, but no impairments were seen in the rapid bioassessment. Low dissolved oxygen levels and high levels
of nutrients were observed in the Harris Creek Subwatershed.
sulfate levels were recorded at a single site located in a tributary to Lake
Fork Reservoir, but no elevated levels were observed in the main body of the
reservoir. In the Running
Creek Subwatershed, elevated levels of fecal coliform bacteria and nutrients
were detected. Elevated levels of
nutrients and were also observed in the Elm Creek Subwatershed as well as
elevated levels of chlorides and sulfates.
Monitoring: The SRA Fixed Station Monitoring includes seven sites in Reach 6, including three sites in Lake Fork Reservoir. An additional four sites are being sampled through the Systematic Monitoring Program. TNRCC personnel are monitoring one additional site in Lake Fork Reservoir.
Description: From Iron Bridge Dam (Lake Tawakoni, river mile 514.5) to Sabine River (Cowleech Fork, river mile 579.4) Watershed Divide Near Celeste (headwaters of the Sabine River). This reach is divided into seven Subwatersheds and covers 774.72 square miles. All of the Subwatersheds drain into Lake Tawakoni (Segment 0507) that is a public water supply reservoir. Although much of this reach is rural, it contains one of the four largest cities in the Sabine Basin.
Water Quality: In
Subwatershed 7.07, elevated levels of fecal coliform and nutrients were
detected. A study performed during
1998-99, indicated impairments were not as severe as was first thought and
appear to come from non-point sources in the mostly-rural watershed. SRA has recommended the development of a
source water protection plan for Lake Tawakoni and it’s watershed. The 1998 draft 303(d) list of waterbodies
not meeting the designated use has included Lake Tawakoni as threatened due to
atrazine (an herbicide) contamination in finished water supplies. Lake
Tawakoni has also been included on the 303(d) list for high pH levels and low
dissolved oxygen. The pH levels have
been shown tobe due to ambient conditions and the proposed revisions to the
standards include a change to the pH range for Lake Tawakoni. The low dissolved oxygen levels were observed
at one location in the summer months and appear to be due to ambient
Monitoring: The SRA 2001 Fixed Station Monitoring includes three sites monitored monthly in Reach 7. SRA is conducting a joint study with the TNRCC to examine atrazine levels on a monthly basis at three sites in Lake Tawakoni.
World Wide Web Project
SRA’s World Wide Web site, http://www.sratx.org/, provides TCRP stakeholders with on-demand access to information and data regarding water resource issues within the Sabine River Basin. Information and data services provided include the following:
The TCRP home page,, provides information regarding Senate Bill 818, a current events calendar, and links to the TNRCC and other TCRP Planning Partner Web sites.
The State of the Basin, http://www.sratx.org/srwmp/tcrp/state_of_the_basin/, provides access to the latest water quality and supply information for the Sabine River Basin, Texas. Contents include: Reach and Subwatershed Inventories, Monthly Water Quality Monitoring Program Reports, Basin Highlights Reports, and Summary Reports.
Water Quality Information Clearinghouse, http://www.sratx.org/data/wq/, provides access to the entire Sabine Basin portion of the TNRCC Surface Water Quality Monitoring Program (SWQM) database (which includes the SRA Fixed Station Monitoring data) and the Subwatershed Inventory
The Sabine Basin GIS Clearinghouse, http://www.sratx.org/data/gis/, allows users to view and download water-related GIS data sets. SRA is a node on the National Geospatial Data Clearinghouse, , which makes these data available through the searching capabilities provided by the Clearinghouse.
The Lake and River Conditions page, http://www.sratx.org/basin/lake_and_river_conditions.asp, provides links to near-real-time lake level data for the Sabine River Basin at the U.S. Geological Survey, as well as historical values back to January 1995. Additional links include National Weather service flood statements, flood warnings, and hydrologic readings (river and reservoir levels and precipitation).