Regional Laboratory
The GBRA Regional Laboratory will be closed for the following holidays:
Memorial Day - Monday, May 28, 2007
Independence Day - Wednesday, July 4, 2007
Labor Day - Monday, September 3, 2007

Lab StaffThe Regional Laboratory located at the General Offices of GBRA in Seguin provides technical assistance and support to GBRA's operations, as well as municipalities, water districts, industries, engineering firms and other organizations as they comply with federal, state and local regulatory requirements that protect water quality.
The Regional Laboratory is equipped to perform physical, chemical and biological analyses of water from natural streams, water and wastewater treatment plants, groundwater wells and treatment residuals. The laboratory is also open to area classroom teachers and civic groups for tours. Students working on science projects often obtain technical expertise from Regional Laboratory employees and these employees frequently provide assistance to local and regional science fair competitions.
A Laboratory Director, two Laboratory Analysts, and two Laboratory Technicians staff the Regional Laboratory. These employees continually educate themselves through training offered by the U.S. Environmental Protection Agency, Texas Commission on Environmental Quality (TCEQ), Texas Engineering Extension Service, Texas Water Utility Association and other associations.
The National Environmental Laboratory Accreditation Congress (NELAC) was formed in 1995 to establish standards and promote the accreditation of environmental laboratories. The program, called the National Environmental Laboratory Accreditation Program (NELAP) includes standards covering laboratory practices, total quality management, personnel, training and facilities. By the spring of 2004, the TCEQ will become a NELAC accrediting authority and will begin accepting applications from laboratories providing data to the commission. The GBRA Regional Laboratory is adopting the NELAC standards and will apply for accreditation through the TCEQ when it becomes available.
Chain of Custody
Certifications
2007-2008
2006-2007
2005-2006
2004-2005
2003-2004
Other Documents
Contact
Josephine Longoria, Laboratory Director
933 East Court Street, Seguin, TX 78155
Phone: 830-379-5822
Fax: 830-379-9718
E-mail:
CURRENT FLOW & LAKE DATA        (more...)
(+/-0.00) - indicates change in 24 hours
J-17 Well: 672.9 msl (+0.0)
Canyon Reservoir 908.36 msl (+0.05)
Guadalupe @ Sattler 155 cfs (+2)
Comal Springs 345 cfs (+0)
San Marcos Springs 148 cfs (+5)
Guadalupe @ Gonzales 815 cfs (+92)
Guadalupe @ Victoria 790 cfs (+52)
Coleto Reservoir 97.39 msl (-0.01)
Guadalupe @ Tivoli 857 cfs (-253)

RESOURCE LIBRARY (more...)
Canyon Gorge
Canyon Reservoir Fact Sheet
Annual Reports
GBRA River Run
Maps
Reports and Studies
Links

CONSERVING A TEXAS TREASURE
Guadalupe RiverThe Guadalupe-Blanco River Trust was founded in 2001 to conserve land in the Guadalupe River Watershed.
Learn more...