We'll answer you direcly by e-mail and post them here. Note that the TURA statute prescribes penalties for filing after this date. Zinc is only reportable in dust or fume form.
Isopropyl alcohol is only reportable if it is being manufactured using the strong acid process.
10,000 pounds for a toxic substance that was otherwise used during the reporting year. This is true, even though the initial test for determining whether a facility is a LQTU and has a threshold of 25,000 lbs for the manufacture or processing of a chemical. As a result, under TURA, manufactured or processed chemicals in the 10,000 - 25,000 lbs. range are reportable. Each facility must file one Form S cover sheet for the facility as a whole. For each chemical reported, a Form R and Form S must be completed.