(a) You must conduct each performance test in Table 4 to this subpart that applies to you.

(b) Before conducting the performance test, you must install and calibrate all monitoring equipment.

(c) Each performance test must be conducted according to the requirements in § 63.7 and under the specific conditions in Table 4 to this subpart.

(d) Performance tests shall be conducted under such conditions as the Administrator specifies to you based on representative performance of the affected source for the period being tested. Representative conditions exclude periods of startup and shutdown. You may not conduct performance tests during periods of malfunction. You must record the process information that is necessary to document operating conditions during the test and include in such record an explanation to support that such conditions represent normal operation. Upon request, you shall make available to the Administrator such records as may be necessary to determine the conditions of performance tests.

(e) You must conduct at least three separate test runs for each performance test required in this section, as specified in § 63.7(e)(3). Each test run must last at least 1 hour.

(f) You must use the data gathered during the performance test and the equations in paragraphs (f)(1) and (2) of this section to determine compliance with the emission limitations.

(1) To determine compliance with the production-based particulate matter (PM) and mercury (Hg) emission limits in Table 1 to this subpart, you must calculate your mass emissions per unit of production for each test run using Equation 1:

Where: MP = mass per unit of production, kilograms (pounds) of pollutant per megagram (ton) of fired product ER = mass emission rate of pollutant (PM or Hg) during each performance test run, kilograms (pounds) per hour P = production rate during each performance test run, megagrams (tons) of fired product per hour.

(2) To determine compliance with the health-based standard for acid gas HAP for BSCP manufacturing facilities in Table 1 to this subpart, you must:

(i) Calculate the HCl-equivalent emissions for HF, HCl, and Cl2 for each tunnel kiln at your facility using Equation 2:

Where: Ei = HCl-equivalent emissions for kiln i, kilograms (pounds) per hour EHCl = emissions of HCl, kilograms (pounds) per hour EHF = emissions of HF, kilograms (pounds) per hour ECl2 = emissions of Cl2, kilograms (pounds) per hour RfCHCl = reference concentration for HCl, 20 micrograms per cubic meter RfCHF = reference concentration for HF, 14 micrograms per cubic meter RfCCl2 = reference concentration for Cl2, 0.15 micrograms per cubic meter

(ii) If you have multiple tunnel kilns at your facility, sum the HCl-equivalent values for all tunnel kilns at the facility using Equation 3:

Where: Etotal = HCl-equivalent emissions for total of all kilns at facility, kilograms (pounds) per hour Ei = HCl-equivalent emissions for kiln i, kilograms (pounds) per hour n = number of tunnel kilns at facility

(iii) Compare this value to the health-based standard in Table 1 to this subpart.

(g) You must establish each site-specific operating limit in Table 2 to this subpart that applies to you as specified in paragraph (g)(1) of this section and in Table 4 to this subpart.

(1)(i) If you do not have an APCD installed on your kiln, calculate the maximum potential HCl-equivalent emissions for HF, HCl, and Cl2 for each tunnel kiln at your facility using Equation 4:

Where: Emax i = maximum potential HCl-equivalent emissions for kiln i, kilograms (pounds) per hour Capi = design capacity for kiln i, megagrams (tons) of fired product per hour MPiHCl = mass of HCl per unit of production for kiln i, kilograms (pounds) of HCl per megagram (ton) of fired product MPiHF = mass of HF per unit of production for kiln i, kilograms (pounds) of HF per megagram (ton) of fired product MPiCl2 = mass of Cl2 per unit of production for kiln i, kilograms (pounds) of Cl2 per megagram (ton) of fired product RfCHCl = reference concentration for HCl, 20 micrograms per cubic meter RfCHF = reference concentration for HF, 14 micrograms per cubic meter RfCCl2 = reference concentration for Cl2, 0.15 micrograms per cubic meter

(ii) If you have multiple tunnel kilns at your facility, sum the maximum potential HCl-equivalent values for all tunnel kilns at the facility using Equation 5:

Where: Emax total = maximum potential HCl-equivalent emissions for total of all kilns at facility, kilograms (pounds) per hour Emax i = maximum potential HCl-equivalent emissions for kiln i, kilograms (pounds) per hour n = number of tunnel kilns at facility

(iii) If you have a single tunnel kiln at your facility and the total facility maximum potential HCl-equivalent emissions (Emax total) are greater than the HCl-equivalent limit in Table 1 to this subpart, determine the maximum process rate for the tunnel kiln using Equation 6 that would ensure the total facility maximum potential HCl-equivalent emissions remain at or below the HCl-equivalent limit. The maximum process rate would become your operating limit for process rate and must be included in your OM&M plan.

Where: Pmax i = maximum process rate for kiln i, megagrams (tons) per hour HCl-eq = HCl-equivalent limit in Table 1 to this subpart, 26 kilograms (57 pounds) per hour MPiHCl = mass of HCl per unit of production for kiln i, kilograms (pounds) of HCl per megagram (ton) of fired product MPiHF = mass of HF per unit of production for kiln i, kilograms (pounds) of HF per megagram (ton) of fired product MPiCl2 = mass of Cl2 per unit of production for kiln i, kilograms (pounds) of Cl2 per megagram (ton) of fired product RfCHCl = reference concentration for HCl, 20 micrograms per cubic meter RfCHF = reference concentration for HF, 14 micrograms per cubic meter RfCCl2 = reference concentration for Cl2, 0.15 micrograms per cubic meter

(iv) If you have multiple tunnel kilns at your facility and the total facility maximum potential HCl-equivalent emissions (Emax total) are greater than the HCl-equivalent limit in Table 1 to this subpart, determine the combination of maximum process rates that would ensure that total facility maximum potential HCl-equivalent remains at or below the HCl-equivalent limit. The maximum process rates would become your operating limits for process rate and must be included in your OM&M plan.

(2) [Reserved]

(h) For each affected kiln that is subject to the emission limits specified in Table 1 to this subpart and is equipped with an APCD that is not addressed in Table 2 to this subpart or that is using process changes as a means of meeting the emission limits in Table 1 to this subpart, you must meet the requirements in § 63.8(f) and paragraphs (h)(1) and (2) of this section.

(1) Submit a request for approval of alternative monitoring procedures to the Administrator no later than the notification of intent to conduct a performance test. The request must contain the information specified in paragraphs (h)(1)(i) through (iv) of this section.

(i) A description of the alternative APCD or process changes.

(ii) The type of monitoring device or procedure that will be used.

(iii) The operating parameters that will be monitored.

(iv) The frequency that the operating parameter values will be determined and recorded to establish continuous compliance with the operating limits.

(2) Establish site-specific operating limits during the performance test based on the information included in the approved alternative monitoring procedures request and, as applicable, as specified in Table 4 to this subpart.