The bill, S.B. No. 2350, aims to establish maximum allowable ground level concentrations of hydrogen sulfide to protect public health, as mandated by the Texas Commission on Environmental Quality (TCEQ). It introduces a new section, 382.0217, to the Health and Safety Code, which requires the TCEQ to create rules that set these maximum concentrations. The TCEQ is also tasked with reviewing the latest health studies on hydrogen sulfide emissions and reevaluating the allowable concentrations at least once every five years. The bill specifies that different concentrations may be established based on land use, such as residential, recreational, or commercial purposes, and sets specific limits of 0.04 parts per million for areas affecting residential or similar properties, and 0.06 parts per million for other uses.

Additionally, the bill mandates that any violation of the established concentrations be classified as having major significance under the Water Code. The TCEQ is required to adopt the necessary rules by September 1, 2026, and the act will take effect on September 1, 2025. This legislation aims to enhance public health protections related to hydrogen sulfide emissions in Texas.

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