Coastal & Marine Resources

Sara Stewart, B.S.
County Extension Agent – Coastal & Marine Resources
Texas Master Naturalists – RGV & South Texas Border Chapter Coordinator
Sara Stewart serves as the Coastal and Marine Resources Extension Agent for the Texas A&M AgriLife Extension Office in Cameron County. Her work focuses on marine resource management, fostering relationships with marine research stakeholders, and engaging with the local shrimping community. Through her educational programs, Sara promotes environmental stewardship by raising awareness of sustainable practices that protect coastal ecosystems. By building strong partnerships and connecting with industry professionals, she supports efforts to preserve marine resources while empowering communities to make informed decisions for a healthier coastal environment.
Water Quality Testing
Non-Drinking Water (Water used for irrigation, aquaculture, recreation, etc.)
The Texas A&M AgriLife Extension Service – Soil, Water, and Forage Testing Laboratory conducts various water tests. The Water Quality Sample Information Form has a complete list of tests available as well as the instructions for submitting water samples directly to the laboratory. Information on analysis procedures and how to interpret results can be found at the Texas Soil, Water and Forage Testing Laboratory.
- Please note that you must mail your sample and form to the laboratory.
Drinking Water (Water used for human consumption)
To test drinking water or water for human consumption in any form (drinking, showering, washing dishes, etc), please contact the following services: