NR 463.14(13)(a)3.3. Operate each fabric filter system such that the bag leak detection system alarm does not sound more than 5% of the operating time during a 6-month block reporting period. In calculating this operating time fraction, if inspection of the fabric filter demonstrates that no corrective action is required, no alarm time shall be counted. If corrective action is required, each alarm shall be counted as a minimum of one hour. If the owner or operator takes longer than one hour to initiate corrective action, the alarm time shall be counted as the actual amount of time taken by the owner or operator to initiate corrective action.

NR 463.14(13)(c)(c) Maintain the 3-hour block average inlet temperature for each fabric filter at or below the sum of the average temperature established during the performance test, plus 14°C (25°F).

NR 463.14(13)(d)(d) For a continuous lime injection system, maintain free-flowing lime in the hopper to the feed device at all times and maintain the lime feeder setting at the same level established during the performance test.

NR 463.14(13)(e)(e) Maintain the total reactive chlorine flux injection rate for each operating cycle or time period at or below the average rate established during the performance test for the operating cycle or time period.

NR 463.14(13)(f)1.1. The level of molten metal remains above the top of the passage between the sidewell and hearth during reactive flux injection, unless emissions from both the sidewell and the hearth are included in demonstrating compliance with all applicable emission limits.

NR 463.14(13)(f)2.2. Reactive flux is added only in the sidewell, unless emissions from both the sidewell and the hearth are included in demonstrating compliance with all applicable emission limits.

NR 463.14(14)(14) Group 1 furnace without add-on air pollution control devices. The owner or operator of a group 1 furnace, including a group 1 furnace that is part of a secondary aluminum processing unit, without add-on air pollution control devices shall do all of the following:

NR 463.14(14)(a)(a) Maintain the total reactive chlorine flux injection rate for each operating cycle or time period at or below the average rate established during the performance test for the operating cycle or time period.

NR 463.14(14)(b)(b) Operate each furnace in accordance with the work practice and pollution prevention measures documented in the OM&M plan and within the parameter values or ranges established in the OM&M plan.

NR 463.14(14)(c)(c) Operate each group 1 melting and holding furnace subject to the emission standards in s. NR 463.13 (9) (b) using only clean charge as the feedstock.

NR 463.14(15)(15) Group 2 furnace. The owner or operator of a new or existing group 2 furnace shall do both of the following:

NR 463.14(16)(16) Corrective action. When a process parameter or add-on air pollution control device operating parameter deviates from the value or range established during the performance test and incorporated in the OM&M plan, the owner or operator shall initiate corrective action. Corrective action shall restore operation of the affected source or emission unit, including the process or control device, to its normal or usual mode of operation as expeditiously as practicable in accordance with good air pollution control practices for minimizing emissions. Corrective actions taken shall include follow-up actions necessary to return the process or control device parameter level to the value or range of values established during the performance test and steps to prevent the likely recurrence of the cause of a deviation.

NR 463.14 HistoryHistory: CR 04-023: cr. Register December 2008 No. 636, eff. 1-1-09; corrections in (1) (b), (c), (d) and (8) (a) 2. made under s. 13.92 (4) (b) 7., Stats., Register December 2008 No. 636.

NR 463.15(1)(1) Summary. On and after the compliance date established by s. NR 463.115, the owner or operator of a new or existing affected source or emission unit shall monitor all control equipment and processes according to the requirements in this section. Monitoring requirements for each type of affected source and emission unit are summarized in the following table.

b The department may approve measurement devices of alternative accuracy, for example in cases where flux rates are very low and costs of meters of specified accuracy are prohibitive; or where feed or charge weighing devices of specified accuracy are not practicable due to equipment layout or charging practices.