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Barnett Shale Air-Sampling Results Near Oil and Natural Gas Facilities by County

This page contains a listing (by county) of TCEQ laboratory analysis of air samples collected near oil and/or natural gas facilities located in the Barnett Shale area. Contact the Toxicology Division for a PDF copy of associated toxicological evaluation memorandum as well as signed and dated TCEQ Laboratory Analysis Results for collected samples.
About Samples Collected

All sampling was conducted by either TCEQ Dallas/Fort Worth regional staff or staff from the agency’s Mobile Monitoring and Deployment Section. The results provided are for canister samples only. The table does not include instances where agency staff surveyed a facility using hand-held instruments and determined that there was no justification to collect a sample, nor does the table include sampling conducted using additional sampling instruments such as real-time automatic gas chromatograph, Sievers total reduced sulfur, or carbonyl sampling. We are developing an interactive map that will be able to track this additional information.

By selecting one of the counties with an active link listed below, you will see a listing of TCEQ Laboratory Analysis Results of canister sampling that we have conducted near an oil and/or natural gas facility located in that county and (if available) the associated toxicological evaluation memorandum. Contact the Toxicology Division for a PDF copy of the associated health effects evaluation memorandum.

The files listed below are in Adobe Acrobat PDF Document Portable Document Format (PDF) Help with PDF.

Updated July 2, 2019

TCEQ-defined Barnett Shale Areas
Other Oil and Gas Areas in TCEQ Region 4