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Barnett Shale

Barnett Shale is a hydrocarbon-producing geological formation consisting of sedimentary rocks and stretching from the city of Dallas west and south, covering 5,000 square miles.
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.