Code of Federal Regulations Title 40. Protection of Environment 40 CFR Pt. 63, Subpt. KKKKK, Tbl. 2 Table 2 to Subpart KKKKK of Part 63—Operating Limits

1. Tunnel or roller kiln equipped with a DIFF or DLS/FF

a. If you use a bag leak detection system, initiate corrective action within 1 hour of a bag leak detection system alarm and complete corrective actions in accordance with your OM&M plan; operate and maintain the fabric filter such that the alarm is not engaged for more than 5 percent of the total operating time in a 6-month block reporting period; and

i. Maintain no VE from the DIFF or DLS/FF stack; or

ii. Maintain your kiln operating temperature within the range of acceptable temperatures (i.e., temperature profile established for each kiln and product.

b. Maintain free-flowing lime in the feed hopper or silo and to the APCD at all times for continuous injection systems; maintain the feeder setting (on a per ton of throughput basis) at or above the level established during the performance test for continuous injection systems in which compliance was demonstrated

2. Tunnel or roller kiln equipped with a WS

a. Maintain the average scrubber liquid pH for each 3-hour block period at or above the average scrubber liquid pH established during the HF/HCl performance test in which compliance was demonstrated; and

b. Maintain the average scrubber liquid flow rate for each 3-hour block period at or above the highest average scrubber liquid flow rate established during the HF/HCl and PM performance tests in which compliance was demonstrated

3. Tunnel or roller kiln equipped with an ACI system

Maintain the 3-hour block average carbon flow rate at or above the highest average carbon flow rate established during the Hg and dioxin/furan performance tests in which compliance was demonstrated

4. Tunnel or roller kiln intending to comply with dioxin/furan emission limit without an ACI system

Maintain the average operating temperature for each 12-hour block period at or below the highest operating temperature established during the dioxin/furan performance test in which compliance was demonstrated

i. Maintain your kiln operating temperature within the range of acceptable temperatures (i.e., temperature profile established for each kiln and product.

5. Tunnel or roller kiln with no add-on control

a. Maintain no VE from the stack; and

b. Maintain the kiln process rate at or below the kiln process rate determined according to § 63.8595(g)(1) if your total facility maximum potential HCl-equivalent emissions are greater than the HCl-equivalent limit in Table 1 to this subpart; and

c. Maintain the average operating temperature for each 12-hour block period at or below the highest operating temperature established during the dioxin/furan performance test in which compliance was demonstrated

i. Maintain no VE from the FF stack.

6. Glaze spray operation equipped with a FF

a. If you use a bag leak detection system, initiate corrective action within 1 hour of a bag leak detection system alarm and complete corrective actions in accordance with your OM&M plan; operate and maintain the fabric filter such that the alarm is not engaged for more than 5 percent of the total operating time in a 6-month block reporting period

7. Glaze spray operation equipped with a WS

a. Maintain the average scrubber pressure drop for each 3-hour block period at or above the average pressure drop established during the PM performance test in which compliance was demonstrated; and

b. Maintain the average scrubber liquid flow rate for each 3-hour block period at or above the average scrubber liquid flow rate established during the PM performance test in which compliance was demonstrated

8. Glaze spray operation equipped with a water curtain

a. Conduct daily inspections to verify the presence of water flow to the wet control system; and

b. Conduct annual inspections of the interior of the control equipment (if applicable) to determine the structural integrity and condition of the control equipment

9. Glaze spray operation equipped with baffles

Conduct an annual visual inspection of the baffles to confirm the baffles are in place

10. Spray dryer

Maintain the average operating temperature for each 4-hour block period at or above the average temperature established during the dioxin/furan performance test in which compliance was demonstrated

11. Floor tile press dryer

Maintain the average operating temperature for each 4-hour block period at or below the average temperature established during the dioxin/furan performance test in which compliance was demonstrated