(a) An owner or operator of any portland cement kiln that is subject to the source cap of §117.3123 of this title (relating to Dallas-Fort Worth Eight-Hour Ozone Attainment Demonstration Control Requirements) shall comply with the following monitoring requirements.
(1) The nitrogen oxides (NO X ) monitoring requirements of §117.3140 of this title (relating to Continuous Demonstration of Compliance) apply. The following requirements also apply.
(2) Stack exhaust flow rate must be monitored with a flow meter using the monitoring specifications of 40 Code of Federal Regulations (CFR) Part 60, Appendix B, Performance Specification 6 or 40 CFR Part 75, Appendix A.
(3) For portland cement kilns that inject ammonia or urea for NO X control, fuel type notwithstanding, ammonia emissions must be monitored according to one of the methods specified in §117.8130(1), (2), or (4) of this title (relating to Ammonia Monitoring) to demonstrate compliance with the ammonia emission specification in §117.3123(f) of this title. The ammonia monitoring requirements of this paragraph only apply from March 1 to October 31 of each calendar year, or any other time the owner or operator injects ammonia or urea for NO X control.
(4) Installation of monitors must be performed in accordance with the schedule specified in §117.9320(c) of this title (relating to Compliance Schedule for Cement Kilns).
(b) The owner or operator of a portland cement kiln subject to the source cap requirements of §117.3123 of this title shall calculate NO X emissions for determining compliance with the source cap as follows. The calculation requirements of this subsection only apply from March 1 to October 31 of each calendar year.
(1) Hourly NO X emissions. Hourly NO X emissions for each kiln must be calculated according to the following equation.
(2) Daily NO X emissions. The daily total NO X emission for each kiln must be calculated as the sum of the hourly NO X emissions for each calendar day, reported in tons per day, and must be calculated according to the following equation.
(3) Thirty-day rolling average. The 30-day rolling average NO X emissions for the account must be calculated according to the following equation.
Source Note: The provisions of this §117.3142 adopted to be effective June 14, 2007, 32 TexReg 3206