Texas Health and Safety Code - HEALTH & SAFETY § 370.004. Threshold Amounts for Reporting

(1) for a toxic chemical used, but not manufactured or processed, at a facility, 10,000 pounds of the toxic chemical used at the facility during the preceding calendar year; or

(2) for a toxic chemical manufactured or processed at a facility, 25,000 pounds of the toxic chemical manufactured or processed at the facility during the preceding calendar year.