NR 440.42(3)(a)2. 2. Exhibit 20% opacity or greater.

NR 440.42(3)(b) (b) On and after the date on which the performance test required to be conducted by s. NR 440.08 is completed, an owner or operator subject to the provisions of this section may not cause to be discharged into the atmosphere from any pneumatic coal cleaning equipment gases which:

NR 440.42(3)(b)1. 1. Contain particulate matter in excess of 0.040 g/dscm (0.017 gr/dscf).

NR 440.42(3)(b)2. 2. Exhibit 10% opacity of greater.

NR 440.42(3)(c) (c) On and after the date on which the performance test required to be conducted by s. NR 440.08 is completed, an owner or operator subject to the provisions of this section may not cause to be discharged into the atmosphere from any coal processing and conveying equipment, coal storage system, or coal transfer and loading system processing coal gases which exhibit 20% opacity or greater.

NR 440.42(4) (4) Monitoring of operations.

NR 440.42(4)(a) (a) The owner or operator of any thermal dryer shall install, calibrate, maintain and continuously operate monitoring devices as follows:

NR 440.42(4)(a)1. 1. A monitoring device for the measurement of the temperature of the gas stream at the exit of the thermal dryer on a continuous basis. The monitoring device shall be certified by the manufacturer to be accurate within ± 1.7°C (± 3°F).

NR 440.42(4)(a)2. 2. For affected facilities that use venturi scrubber emission control equipment:

NR 440.42(4)(a)2.a. a. A monitoring device for the continuous measurement of the pressure loss through the venturi constriction of the control equipment. The monitoring device shall be certified by the manufacturer to be accurate within plus or minus one inch water gauge.

NR 440.42(4)(a)2.b. b. A monitoring device for the continuous measurement of the water supply pressure to the control equipment. The monitoring device shall be certified by the manufacturer to be accurate within ± 5% of design water supply pressure. The pressure sensor or tap shall be located close to the water discharge point. The department may approve alternative locations.

NR 440.42(4)(b) (b) All monitoring devices under par. (a) shall be recalibrated annually in accordance with procedures under s. NR 440.13 (2).

NR 440.42(5) (5) Test methods and procedures.

NR 440.42(5)(a) (a) 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 440.42(5)(b) (b) The owner or operator shall determine compliance with the particulate matter standards in sub. (3) as follows:

NR 440.42(5)(b)1. 1. Method 5 shall be used to determine the particulate matter concentration. The sampling time and sample volume for each run shall be at least 60 minutes and 0.85 dscm (30 dscf). Sampling shall begin no less than 30 minutes after startup and shall terminate before shutdown procedures begin.

NR 440.42(5)(b)2. 2. Method 9 and the procedures in s. NR 440.11 shall be used to determine opacity.

NR 440.42 History History: Cr. Register, January, 1984, No. 337, eff. 2-1-84; am. (2) (intro.), Register, September, 1990, No. 417, eff. 10-1-90; am. (4) (b), r. and recr. (5), Register, July, 1993, No. 451, eff. 8-1-93; CR 06-109: am. (1) (a), (2) (a) and (b), (3) (b) 1., (4) (a) 1. and (5) (b) (intro.) Register May 2008 No. 629, eff. 6-1-08.

NR 440.43 NR 440.43 Ferroalloy production facilities.

NR 440.43(1) (1) Applicability and designation of affected facility.

NR 440.43(1)(a) (a) The provisions of this section are applicable to the following affected facilities: electric submerged arc furnaces which produce silicon metal, ferrosilicon, calcium silicon, silicomanganese zirconium, ferrochrome silicon, silvery iron, high-carbon ferrochrome, charge chrome, standard ferromanganese, silicomanganese, ferromanganese silicon or calcium carbide; and dust-handling equipment.

NR 440.43(1)(b) (b) Any facility under par. (a) that commences construction or modification after October 21, 1974, is subject to the requirements of this section.

NR 440.43(2) (2) Definitions. As used in this section, terms not defined in this subsection have the meanings given in s. NR 440.02.

NR 440.43(2)(a) (a) “Blowing tap” means any tap in which an evolution of gas forces or projects jets of flame or metal sparks beyond the ladle, runner or collection hood.

NR 440.43(2)(b) (b) “Calcium carbide” means material containing 70 to 85% calcium carbide by weight.

NR 440.43(2)(c) (c) “Calcium silicon” means that alloy as defined by ASTM A495-94, incorporated by reference in s. NR 440.17 (2) (a) 6.

NR 440.43(2)(d) (d) “Capture system” means the equipment (including hoods, ducts, fans, dampers, etc.) used to capture or transport particulate matter generated by an affected electric submerged arc furnace to the control device.

NR 440.43(2)(e) (e) “Charge chrome” means that alloy containing 52 to 70% by weight chromium, 5 to 8% by weight carbon, and 3 to 6% by weight silicon.

NR 440.43(2)(f) (f) “Control device” means the air pollution control equipment used to remove particulate matter generated by an electric submerged arc furnace from an effluent gas stream.