NR 440.44(5)(c)(c) When the owner or operator of an affected facility is required to demonstrate compliance with the standard under sub. (3) (a) 3., and at any other time, the department may require that either: the control system fan motor amperes and all damper positions, the volumetric flow rate through each separately ducted hood, or the volumetric flow rate at the control device inlet and all damper positions shall be determined during all periods in which the hood is operated for the purpose of capturing emissions from the affected facility subject to par. (b). The owner or operator may petition the department for reestablishment of these parameters whenever the owner or operator can demonstrate to the department’s satisfaction that the EAF operating conditions upon which the parameters were previously established are no longer applicable. The values of these parameters as determined during the most recent demonstration of compliance shall be maintained at the appropriate level for each applicable period. Operation at other than baseline values may be subject to the requirements of sub. (7) (a). NR 440.44 NoteNote: Under 40 CFR 60.274 (d), the owner or operator may petition the administrator to approve any alternative method that will provide a continuous record of operation of each emission capture system. NR 440.44(5)(e)(e) The owner or operator shall perform monthly operational status inspections of the equipment that is important to the performance of the total capture system (i.e., pressure sensors, dampers and damper switches). This inspection shall include observations of the physical appearance of the equipment (e.g., presence of hole in ductwork or hoods, flow constrictions caused by dents or accumulated dust in ductwork, and fan erosion). Any deficiencies shall be noted and proper maintenance performed. NR 440.44(5)(f)(f) Except as provided for under sub. (4) (d), where emissions during any phase of the heat time are controlled by use of a DEC system, the owner or operator shall install, calibrate and maintain a monitoring device that continuously records the pressure in the free space inside the EAF. The pressure shall be recorded as 15-minute integrated averages. The monitoring device may be installed in any appropriate location in the EAF or DEC system duct prior to the introduction of ambient air such that reproducible results will be obtained. The pressure monitoring device shall have an accuracy of ± 5 mm of water gauge over its normal operating range and shall be calibrated according to the manufacturer’s instructions. NR 440.44(5)(g)(g) Except as provided for under sub. (4) (d), when the owner or operator of an EAF is required to demonstrate compliance with the standard under sub. (3) (a) 3. and at any other time the department may require, the pressure in the free space inside the furnace shall be determined during the meltdown and refining periods using the monitoring device under par. (f). The owner or operator may petition the department for reestablishment of the 15-minute integrated average pressure whenever the owner or operator can demonstrate to the department’s satisfaction that the EAF operating conditions upon which the pressures were previously established are no longer applicable. The pressure determined during the most recent demonstration of compliance shall be maintained at all times the EAF is operating in a meltdown and refining period. Operation at higher pressures may be considered by the department to be unacceptable operation and maintenance of the affected facility. NR 440.44(5)(h)(h) Where the capture system is designed and operated such that all emissions are captured and ducted to a control device, the owner or operator will not be subject to the requirements of this subsection. NR 440.44(5)(i)(i) During any performance test required under s. NR 440.08 and for any report thereof required under sub. (7) (c) or to determine compliance with sub. (3) (a) 3., the owner or operator shall monitor the following information for all heats covered by the test: NR 440.44(5)(i)2.2. Heat times, including start and stop times, and a log of process operation, including periods of no operation during testing and the pressure inside the furnace where direct-shell evacuation systems are used; NR 440.44(6)(a)(a) During performance tests required in s. NR 440.08, the owner or operator may not add gaseous diluent to the effluent gas after the fabric in any pressurized fabric collector, unless the amount of dilution is separately determined and considered in the determination of emissions. NR 440.44(6)(b)(b) When emissions from any EAF are combined with emissions from facilities not subject to the provisions of this section but controlled by a common capture system and control device, the owner or operator shall use either or both of the following procedures during a performance test: NR 440.44 NoteNote: See also sub. (7) (b).
NR 440.44(6)(b)2.2. Use a method that is acceptable to the department and that compensates for the emissions from the facilities not subject to the provisions of this section. NR 440.44(6)(c)(c) When emissions from any EAF are combined with emissions from facilities not subject to the provisions of this section, the owner or operator shall use either or both of the following procedures to demonstrate compliance with sub. (3) (a) 3.: NR 440.44(6)(c)2.2. Shut down operation of facilities not subject to the provisions of this section during the performance test. NR 440.44(6)(d)(d) In conducting the performance tests required in s. NR 440.08, the owner or operator shall use as reference methods and procedures the test methods in Appendix A of 40 CFR part 60, incorporated by reference in s. NR 440.17, or other methods and procedures as specified in this subsection, except as provided in s. NR 440.08 (2). NR 440.44(6)(e)(e) The owner or operator shall determine compliance with the particulate matter standards in sub. (3) as follows: NR 440.44(6)(e)1.1. Method 5 shall be used for negative-pressure fabric filters and other types of control devices and Method 5D shall be used for positive-pressure fabric filters to determine the particulate matter concentration and, if applicable, the volumetric flow rate of the effluent gas. The sampling time and sample volume for each run shall be at least 4 hours and 4.5 dscm (160 dscf) and, when a single EAF is sampled, the sampling time shall include an integral number of heats. NR 440.44(6)(e)2.2. When more than one control device serves the EAF being tested, the concentration of particulate matter shall be determined using the following equation: where:
cst is the average concentration of particulate matter, mg/dscm (gr/dscf)
csi is the concentration of particulate matter from control device “i”, mg/dscm (gr/dscf)
n is the total number of control devices tested
Qsdi is the volumetric flow rate of stack gas from control device “i”, dscm/hr (dscf/hr)