Code of Federal Regulations Title 40. Protection of Environment 40 CFR Pt. 63, Subpt. JJJJJ, Tbl. 3 Table 3 to Subpart JJJJJ of Part 63—Work Practice Standards

1. Existing, new or reconstructed periodic kiln

a. Minimize HAP emissions

i. Develop and use a designed firing time and temperature cycle for each periodic kiln. You must either program the time and temperature cycle into your kiln or track each step on a log sheet; and

ii. Label each periodic kiln with the maximum load (in tons) of product that can be fired in the kiln during a single firing cycle; and

iii. For each firing load, document the total tonnage of product placed in the kiln to ensure that it is not greater than the maximum load identified in item 1b; and

iv. Develop and follow maintenance procedures for each kiln that, at a minimum, specify the frequency of inspection and maintenance of temperature monitoring devices, controls that regulate air-to-fuel ratios, and controls that regulate firing cycles; and

v. Develop and maintain records for each periodic kiln, as specified in § 63.8490.

2. Existing, new or reconstructed tunnel kiln

a. Minimize dioxin/furan emissions

i. Maintain and inspect the burners and associated combustion controls (as applicable); and

ii. Tune the specific burner type to optimize combustion.

3. Existing, new or reconstructed tunnel kiln during periods of startup

a. Minimize HAP emissions

i. Establish the startup push rate for each kiln, the minimum APCD inlet temperature for each APCD, and temperature profile for each kiln without an APCD and include them in your first compliance report, as specified in § 63.8485(c)(8); and

ii. After initial charging of the kiln with loaded kiln cars, remain at or below the startup push rate for the kiln until the kiln exhaust reaches the minimum APCD inlet temperature for a kiln with an APCD or until the kiln temperature profile is attained for a kiln with no APCD; and

iii. If your kiln has an APCD, begin venting the exhaust from the kiln through the APCD by the time the kiln exhaust temperature reaches the minimum APCD inlet temperature.

4. Existing, new or reconstructed tunnel kiln during periods of shutdown

a. Minimize HAP emissions

i. Do not push loaded kiln cars into the kiln once the kiln exhaust temperature falls below the minimum APCD inlet temperature if the kiln is controlled by an APCD or when the kiln temperature profile is no longer maintained for an uncontrolled kiln; and

ii. If your kiln has an APCD, continue to vent the exhaust from the kiln through the APCD until the kiln exhaust temperature falls below the minimum inlet temperature for the APCD.

5. Existing, new or reconstructed tunnel kiln during periods of routine control device maintenance

a. Minimize HAP emissions.

i. Develop and use a temperature profile for each kiln; and

ii. Develop and follow maintenance procedures for each kiln that, at a minimum, specify the frequency of inspection and maintenance of temperature monitoring devices and controls that regulate air-to-fuel ratios; and

iii. Develop and maintain records for each kiln, as specified in § 63.8490(a)(3).