The owner or operator shall maintain, for a minimum of five years, records in written or electronic format sufficient to demonstrate compliance with all applicable requirements in this subchapter, including but not limited to:(1) records of the continuous monitoring of exhaust gas sulfur content, temperature, and velocity from the appropriate stack;(2) documentation of any period that emission limits or standards were exceeded, and copies of exceedance reports submitted to the appropriate Texas Commission on Environmental Quality regional office; and(3) a copy of each performance test and relative accuracy test audit conducted and associated records.