NR 440.688(2)(s)(s) “Screening operation” means a device for separating material according to size by passing undersize material through one or more mesh surfaces (screens) in series, and retaining oversize material on the mesh surfaces (screens). NR 440.688(2)(t)(t) “Size” means the rated capacity in tons per hour of a crusher, grinding mill, bucket elevator, bagging operation, or enclosed truck or railcar loading station; the total surface area of the top screen of a screening operation; the width of a conveyor belt; and the rated capacity in tons of a storage bin. NR 440.688(2)(u)(u) “Stack emissions” means the particulate matter that is released to the atmosphere from a capture system. NR 440.688(2)(v)(v) “Storage bin” means a facility for storage, including surge bins, for nonmetallic minerals prior to further processing or loading. NR 440.688(2)(w)(w) “Transfer point” means a point in a conveying operation where the nonmetallic mineral is transferred to or from a belt conveyor except where the nonmetallic mineral is being transferred to a stockpile. NR 440.688(2)(x)(x) “Truck dumping” means the unloading of nonmetallic minerals from movable vehicles designed to transport nonmetallic minerals from one location to another. Movable vehicles include but are not limited to: trucks, front end loaders, skip hoists, and railcars. NR 440.688(2)(y)(y) “Vent” means an opening through which there is mechanically induced air flow for the purpose of exhausting from a building air carrying particulate matter emissions from one or more affected facilities. NR 440.688(2)(ym)(ym) “Wet mining operation” means a mining or dredging operation designed and operated to extract any nonmetallic mineral regulated under this section from deposits existing at or below the water table, where the nonmetallic mineral is saturated with water. NR 440.688(2)(z)(z) “Wet screening operation” means a screening operation at a nonmetallic mineral processing plant that removes unwanted material or that separates marketable fines from the product by a washing process which is designed and operated at all times such that the product is saturated with water. NR 440.688(3)(a)(a) On and after the date on which the performance test required to be conducted by s. NR 440.08 is completed, no owner or operator subject to the provisions of this section may cause to be discharged into the atmosphere from any transfer point on belt conveyors or from any other affected facility any stack emissions which meet both of the following criteria: NR 440.688(3)(a)2.2. Exhibit greater than 7% opacity, unless the stack emissions are discharged from an affected facility using a wet scrubbing control device. Facilities using a wet scrubber shall comply with the reporting provisions of sub. (7) (c) to (e). NR 440.688(3)(b)(b) On and after the sixtieth day after achieving the maximum production rate at which the affected facility will be operated, but not later than 180 days after initial startup as required under s. NR 440.11, no owner or operator subject to the provisions of this section may cause to be discharged into the atmosphere from any transfer point on belt conveyors or from any other affected facility any fugitive emissions which exhibit greater than 10% opacity except as provided in pars. (c) to (e). NR 440.688(3)(c)(c) On and after the sixtieth day after achieving the maximum production rate at which the affected facility will be operated, but not later than 180 days after initial startup as required under s. NR 440.11, no owner or operator may cause to be discharged into the atmosphere from any crusher, at which a capture system is not used, fugitive emissions which exhibit greater than 15% opacity. NR 440.688(3)(d)(d) Truck dumping of nonmetallic minerals into any screening operation, feed hopper, or crusher is exempt from the requirements of this subsection. NR 440.688(3)(e)(e) If any transfer point on a conveyor belt or any other affected facility is enclosed in a building, then each enclosed affected facility shall comply with the emission limits in pars. (a), (b) and (c), or the building enclosing the affected facility or facilities shall comply with the following emission limits: NR 440.688(3)(e)1.1. No owner or operator may cause to be discharged into the atmosphere from any building enclosing any transfer point on a conveyor belt or any other affected facility any visible fugitive emissions except emissions from a vent as defined in sub. (2). NR 440.688(3)(e)2.2. No owner or operator may cause to be discharged into the atmosphere from any vent of any building enclosing any transfer point on a conveyor belt or any other affected facility emissions which exceed the stack emissions limits in par. (a). NR 440.688(3)(f)(f) On and after the sixtieth day after achieving the maximum production rate at which the affected facility will be operated, but not later than 180 days after initial startup as required under s. NR 440.11, no owner or operator may cause to be discharged into the atmosphere from any baghouse that controls emissions from only an individual, enclosed storage bin, stack emissions which exhibit greater than 7% opacity. NR 440.688(3)(g)(g) Owners or operators of multiple storage bins with combined stack emissions shall comply with the emission limits in par. (a) 1. and 2. NR 440.688(3)(h)(h) On and after the sixtieth day after achieving the maximum production rate at which the affected facility will be operated, but not later than 180 days after initial startup, no owner or operator may cause to be discharged into the atmosphere any visible emissions from: NR 440.688(3)(h)1.1. Wet screening operations and subsequent screening operations, bucket elevators, and belt conveyors that process saturated material in the production line up to the next crusher, grinding mill or storage bin. NR 440.688(3)(h)2.2. Screening operations, bucket elevators, and belt conveyors in the production line downstream of wet mining operations, where the screening operations, bucket elevators, and belt conveyors process saturated materials up to the first crusher, grinding mill or storage bin in the production line. NR 440.688(4)(a)(a) The cost of replacement of ore-contact surfaces on processing equipment may not be considered in calculating either the “fixed capital cost of the new components” or the “fixed capital cost that would be required to construct a comparable new facility” under s. NR 440.15. Ore-contact surfaces are crushing surfaces; screen meshes, bars, and plates; conveyor belts; and elevator buckets. NR 440.688(4)(b)(b) Under s. NR 440.15, the “fixed capital cost of the new components” includes the fixed capital cost of all depreciable components (except components specified in par. (a)) which are or will be replaced pursuant to all continuous programs of component replacement commenced within any 2-year period following August 31, 1983. NR 440.688(5)(5) Monitoring of operations. The owner or operator of any affected facility subject to the provisions of this section which uses a wet scrubber to control emissions shall install, calibrate, maintain and operate the following monitoring devices: NR 440.688(5)(a)(a) A device for the continuous measurement of the pressure loss of the gas stream through the scrubber. The monitoring device shall be certified by the manufacturer to be accurate within ± 250 pascals (± 1 inch water) gauge pressure and shall be calibrated on an annual basis in accordance with manufacturer’s instructions. NR 440.688(5)(b)(b) A device for the continuous measurement of the scrubbing liquid flow rate to the wet scrubber. The monitoring device shall be certified by the manufacturer to be accurate within ± 5% of design scrubbing liquid flow rate and shall be calibrated on an annual basis in accordance with manufacturer’s instructions. NR 440.688(6)(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). Acceptable alternative methods and procedures are given in par. (e). NR 440.688(6)(b)(b) The owner or operator shall determine compliance with the particulate matter standards in sub. (3) (a) as follows: NR 440.688(6)(b)1.1. Method 5 or Method 17 shall be used to determine the particulate matter concentration. The sample volume shall be at least 1.70 dscm (60 dscf). For Method 5, if the gas stream being sampled is at ambient temperature, the sampling probe and filter may be operated without heaters. If the gas stream is above ambient temperature, the sampling probe and filter may be operated at a temperature high enough, but no higher than 121°C (250°F), to prevent water condensation on the filter. NR 440.688(6)(c)1.1. In determining compliance with the particulate matter standards in sub. (3) (b) and (c), the owner or operator shall use Method 9 and the procedures in s. NR 440.11, with the following additions: NR 440.688(6)(c)1.a.a. The minimum distance between the observer and the emission source shall be 4.57 meters (15 feet). NR 440.688(6)(c)1.b.b. The observer shall, when possible, select a position that minimizes interference from other fugitive emission sources, for example, road dust. The required observer position relative to the sun (Method 9, Section 2.1) shall be followed. NR 440.688(6)(c)1.c.c. For affected facilities using wet dust suppression for particulate matter control, a visible mist is sometimes generated by the spray. The water mist may not be confused with particulate matter emissions and is not to be considered a visible emission. When a water mist of this nature is present, the observation of emission is to be made at a point in the plume where the mist is no longer visible. NR 440.688(6)(c)2.2. In determining compliance with the opacity of stack emissions from any baghouse that controls emissions only from an individual enclosed storage bin under sub. (3) (f), using Method 9, the duration of Method 9 observations shall be one hour (10 6-minute averages). NR 440.688(6)(c)3.3. When determining compliance with the fugitive emission standard for any affected facility described under sub. (3) (b), the duration of the Method 9 observations may be reduced from 3 hours (30 6-minute averages) to one hour (10 6-minute averages) only if both of the following conditions apply: NR 440.688(6)(c)4.4. When determining compliance with the fugitive emissions standard for any crusher at which a capture system is not used as described under sub. (3) (c), the duration of the Method 9 observations may be reduced from 3 hours (30 6-minute averages) to one hour (10 6-minute averages) only if both of the following conditions apply: NR 440.688(6)(d)(d) In determining compliance with sub. (3) (e), the owner or operator shall use Method 22 to determine fugitive emissions. The performance test shall be conducted while all affected facilities inside the building are operating. The performance test for each building shall be at least 75 minutes in duration, with each side of the building and the roof being observed for at least 15 minutes. NR 440.688(6)(e)(e) The owner or operator may use the following as alternatives to the reference methods and procedures specified in this subsection: NR 440.688(6)(e)1.1. For the method and procedure of par. (c), if emissions from 2 or more facilities continuously interfere so that the opacity of fugitive emissions from an individual affected facility cannot be read, either of the following procedures may be used: NR 440.688(6)(e)1.a.a. Use for the combined emission stream the highest fugitive opacity standard applicable to any of the individual affected facilities contributing to the emission stream. NR 440.688(6)(e)1.b.b. Separate the emissions so that the opacity of emissions from each affected facility can be read. NR 440.688(6)(f)(f) To comply with sub. (7) (d), the owner or operator shall record the measurements as required in sub. (7) (c) using the monitoring devices in sub. (5) (a) and (b) during each particulate matter run and shall determine the averages. NR 440.688(6)(g)(g) If, after 30 days notice for an initially scheduled performance test, there is a delay (due to operational problems, etc.) in conducting any rescheduled performance test, the owner or operator of an affected facility shall submit a notice to the department at least 7 days prior to any rescheduled performance test. NR 440.688(6)(h)1.1. Wet screening operations and subsequent screening operations, bucket elevators and belt conveyors that process saturated material in the production line up to, but not including, the next crusher, grinding mill or storage bin. NR 440.688(6)(h)2.2. Screening operations, bucket elevators and belt conveyors in the production line downstream of wet mining operations, that process saturated materials up to the first crusher, grinding mill or storage bin in the production line. NR 440.688(7)(a)(a) Each owner or operator seeking to comply with sub. (1) (d) shall submit to the department the following information about the existing facility being replaced and the replacement piece of equipment. NR 440.688(7)(a)1.1. For a crusher, grinding mill, bucket elevator, bagging operation, or enclosed truck or railcar loading station, both of the following: NR 440.688(7)(a)1.a.a. The rated capacity in megagrams or tons per hour of the existing facility being replaced,. NR 440.688(7)(a)1.b.b. The rated capacity in megagrams or tons per hour of the replacement equipment. NR 440.688(7)(a)2.a.a. The total surface area of the top screen of the existing screening operation being replaced, and NR 440.688(7)(a)2.b.b. The total surface area of the top screen of the replacement screening operation. NR 440.688(7)(a)4.a.a. The rated capacity in megagrams or tons of the existing storage bin being replaced. NR 440.688(7)(c)(c) During the initial performance test of a wet scrubber, and daily thereafter, the owner or operator shall record the measurement of both the change in pressure of the gas stream across the scrubber and the scrubbing liquid flow rate. NR 440.688(7)(d)(d) After the initial performance test of a wet scrubber, the owner or operator shall submit semiannual reports to the department of occurrences when the measurements of the scrubber pressure loss (or gain) and liquid flow rate differ by more than ± 30% for the average determined during the most recent performance test. NR 440.688(7)(e)(e) The reports required under par. (d) shall be postmarked within 30 days following end of the second and fourth calendar quarters. NR 440.688(7)(f)(f) The owner or operator of any affected facility shall submit written reports of the results of all performance tests conducted to demonstrate compliance with the standards set forth in sub. (3) including reports of opacity observations made using Method 9, 40 CFR part 60, Appendix A, incorporated by reference in s. NR 440.17 (1), to demonstrate compliance with sub. (3) (b), (c) and (f) and reports of observations using Method 22, 40 CFR part 60, Appendix A, incorporated by reference in s. NR 440.17 (1), to demonstrate compliance with sub. (3) (e). NR 440.688(7)(g)(g) The owner or operator of any screening operation, bucket elevator or belt conveyor that processes saturated material and is subject to sub. (3) (h) and subsequently processes unsaturated materials, shall submit a report of this change within 30 days following the change. The screening operation, bucket elevator or belt conveyor is then subject to the 10% opacity limit in sub. (3) (b) and the emission test requirements of s. NR 440.11. A screening operation, bucket elevator or belt conveyor that processes unsaturated material but subsequently processes saturated material shall submit a report of this change within 30 days following the change. The screening operation, bucket elevator or belt conveyor is then subject to the no-visible-emission limit in sub. (3) (h). NR 440.688(7)(i)(i) A notification of the actual date of initial startup of each affected facility shall be submitted to the department. NR 440.688(7)(i)1.1. For a combination of affected facilities in a production line that begin actual initial startup on the same day, a single notification of startup may be submitted by the owner or operator to the department. The notification shall be postmarked within 15 days after the date and shall include a description of each affected facility, equipment manufacturer and serial number of the equipment, if available. NR 440.688(7)(i)2.2. For portable aggregate processing plants, the notification of the actual date of initial startup shall include both the home office and the current address or location of the portable plant. NR 440.688 HistoryHistory: Cr. Register, September, 1990, No. 417, eff. 10-1-90; am. (3) (d), (e) (intro.) and (7) (d), r. and recr. (6), Register, July, 1993, No. 451, eff. 8-1-93; CR 06-109: am. (1) (a) and (d) 2., (3) (a) (intro.) and 1., (b) and (c), (7) (a) (intro.), 1., and 4. a. and b. and (f), cr. (1) (am), (2) (ym) and (z), (3) (f) to (h), (6) (c) 2. to 4., (g) and (h), (7) (g) and (i), renum. (6) (c) (intro.), 1., 2. and 3. to be (6) (c) 1. (intro.), a., b. and c., r. (7) (b) Register May 2008 No. 629, eff. 6-1-08. NR 440.69NR 440.69 Wool fiberglass insulation manufacturing plants. NR 440.69(1)(1) Applicability and designation of affected facility. NR 440.69(1)(a)(a) The affected facility to which the provisions of this section apply is each rotary spin wool fiberglass insulation manufacturing line. NR 440.69(1)(b)(b) The owner or operator of any facility under par. (a) that commences construction, modification, or reconstruction after February 7, 1984, is subject to the requirements of this section. NR 440.69(2)(2) Definitions. As used in this section, terms not defined in this subsection have the meanings given in s. NR 440.02. NR 440.69(2)(a)(a) “Glass pull rate” means the mass of molten glass utilized in the manufacture of wool fiberglass insulation at a single manufacturing line in a specified time period. NR 440.69(2)(b)(b) “Manufacturing line” means the manufacturing equipment comprising the forming section, where molten glass is fiberized and a fiberglass mat is formed; the curing section, where the binder resin in the mat is thermally “set” ; and the cooling section, where the mat is cooled. NR 440.69(2)(c)(c) “Rotary spin” means a process used to produce a wool fiberglass insulation by forcing molten glass through numerous small orifices in the side wall of a spinner to form continuous glass fibers that are then broken into discrete lengths by high velocity air flow. NR 440.69(2)(d)(d) “Wool fiberglass insulation” means a thermal insulation material composed of glass fibers and made from glass produced or melted at the same facility where the manufacturing line is located.
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