TX SB2350

Requires the Texas Commission on Environmental Quality (TCEQ) to establish by rule maximum allowable ground level concentrations of hydrogen sulfide to protect public health

Sets a maximum net ground level concentration of 0.04 parts per million averaged over any 30-minute period for emissions affecting residential, recreational, business, or commercial properties

Sets a higher limit of 0.06 parts per million averaged over any 30-minute period for emissions affecting only agricultural or other non-residential/commercial properties

Mandates TCEQ review the latest health studies on hydrogen sulfide emissions and reevaluate the maximum allowable concentrations at least once every five years

Classifies violations of these concentration limits as having "major significance" under the Water Code, and requires TCEQ to adopt implementing rules by September 1, 2026