Chapter NR 415

NR 415.075(4)(a)4. 4. Monitoring results shall be submitted to the department on a monthly basis. Results for each month shall be postmarked or received by the department no later than the last day of the following month.

NR 415.075(4)(a)5. 5. The owner or operator shall start monitoring by 120 days from the date of permit issuance under ch. NR 407 or as specified in the ambient air monitoring plan for any source subject to the permit requirements of ch. NR 406.

NR 415.075(4)(b) (b) The owner or operator of a source may apply for, and the department may grant, a variance from the monitoring requirements of this subsection if the applicant demonstrates that the general public will not be exposed to significant levels of particulate matter from the source, and that the source’s emissions units and processes are controlled to a level which meets all applicable requirements. The department may review any variance granted under this paragraph on a biennial basis. Following its review, the department may modify, extend or rescind the variance.

NR 415.075(5) (5) Recordkeeping. Each owner or operator of any ledge rock quarry or industrial sand mine shall keep the following records. Recordkeeping and access to these records shall be in accordance with ss. NR 439.03 to 439.05.

NR 415.075(5)(a) (a) Records of actual operation on a monthly basis.

NR 415.075(5)(b) (b) Records of actual production on a monthly basis.

NR 415.075(6) (6) Fugitive dust control plan.

NR 415.075(6)(a) (a) Each owner or operator of any ledge rock quarry or industrial sand mine shall prepare a fugitive dust control plan to prevent, detect and correct malfunctions, equipment failures or other circumstances which may cause any applicable emission limitation to be violated or which may cause air pollution. The plan shall be in writing, and updated as needed, and shall include all of the following:

NR 415.075(6)(a)1. 1. Identification of the individual responsible for implementing the fugitive dust control plan.

NR 415.075(6)(a)2. 2. The maximum intervals for inspection and routine maintenance of fugitive dust control equipment, including a description of the items or conditions that will be checked.

NR 415.075(6)(a)3. 3. Schedules for watering, treating or periodic cleaning of roads, trafficable areas and storage piles.

NR 415.075(6)(a)4. 4. A listing of materials, equipment and spare parts that will be maintained in inventory.

NR 415.075(6)(a)5. 5. Other information as the department may deem pertinent.

NR 415.075(6)(b) (b) The department may order any owner or operator to submit the plan required by par. (a) to the department for review. The department may request any owner or operator to amend the plan if deemed necessary for malfunction prevention or the reduction of excess emissions.

NR 415.075(6)(c) (c) No owner or operator may fail to implement the plan required under par. (a) or as amended under par. (b).

NR 415.075(6)(d) (d) All air pollution control equipment shall be operated and maintained in conformance with good engineering practices to minimize the possibility for the exceedance of any emission limitations.

NR 415.075 History History: Cr. Register, June, 1994, No. 462, eff. 7-1-94; am. (2) (a) 5. and (3) (c), Register, December, 1995, No. 480, eff. 1-1-96; CR 01-002: am. (3) (intro.), Register, October 2001 No. 550, eff. 11-1-01; correction in (3) (c) made under s. 13.93 (2m) (b) 7., Stats., Register October 2003 No. 574; correction in (2) (a) 5. made under s. 13.92 (4) (b) 6., Stats., Register April 2023 No. 808.

NR 415.076 NR 415.076 Particulate matter emission limitations for crushed stone and sand and gravel plants.

NR 415.076(1) (1) Applicability.

NR 415.076(1)(a) (a) Except as provided in par. (b), the provisions of this section are applicable to the following direct or portable sources in fixed or portable crushed stone and sand and gravel plants: each crusher, screening operation, bucket elevator, belt conveyor or storage bin.

NR 415.076(1)(b) (b) Direct or portable sources at the following plants are not subject to the provisions of this section:

NR 415.076(1)(b)1. 1. Fixed sand and gravel plants and fixed crushed stone plants with capacities of 25 tons per hour or less.

NR 415.076(1)(b)2. 2. Portable sand and gravel plants and portable crushed stone plants with capacities of 150 tons per hour or less.

NR 415.076(2) (2) Fugitive dust control. No person may cause, allow or permit any crusher, screen, bucket elevator, belt conveyor, storage bin or any transfer point on belt conveyors to be used without taking precautions to prevent particulate matter from becoming airborne. These precautions shall be taken to the extent necessary so that any applicable requirements are met and shall include one or more of the following:

NR 415.076(2)(a) (a) Use, where possible, of water, or chemicals approved by the department, for control of dust.

NR 415.076(2)(b) (b) Installation and use of hoods, enclosures, buildings, fans and air cleaning devices to enclose and vent the areas where materials are handled.

NR 415.076(2)(c) (c) The use of spray bars or other wet dust suppression methods.

NR 415.076(2)(d) (d) Any precautions proposed by the owner or operator and accepted by the department.

NR 415.076(2)(e) (e) Use of no precautions where control measures are unnecessary due to site or meteorological conditions.

NR 415.076 History History: Cr. Register, June, 1994, No. 462, eff. 7-1-94.

NR 415.08 NR 415.08 RACT requirements for coking operations.

NR 415.08(1) (1) This section applies to all coking operations.

NR 415.08(2) (2) Visible emissions from charging procedures shall be limited by the application of RACT. RACT includes:

NR 415.08(2)(a) (a) The use and maintenance of suitable jumper pipes and leveling bar smoke boots,

NR 415.08(2)(b) (b) The use and maintenance of suitable seals on larry car drop sleeves and leveling bar smoke boots,

NR 415.08(2)(c) (c) The use and maintenance of a steam aspiration system which provides maximum safe levels of negative pressure on the oven chamber during the charging operation, and

NR 415.08(2)(d) (d) The completion of each charging procedure, including sweeping excess coal into the oven just charged, as quickly as possible.

NR 415.08(3) (3) Fugitive emissions from pushing operations shall be captured by a traveling hood and controlled to not more than 0.080 pounds of particulate matter per 1000 pounds of exhaust gas. Any emissions escaping capture may not exceed 20% opacity for each pushing operation, as determined by the average of 6 consecutive observations made at 15 second intervals.

NR 415.08(4) (4) There may be no visible emissions from 90% of the doors of all coke ovens in use; 95% of all coke oven charging port lids on ovens in use; and 90% of all offtake piping on ovens in use, except those open for charging, pushing, cleaning and maintenance as determined by a one pass observation.

NR 415.08(5) (5) Quench towers for the application of water on hot coke shall be equipped with grit arrestors or equivalent equipment approved by the department. Water used in quenching may not include coke by-product plant effluent, and total dissolved solids in make-up quenching water shall be less than 750 milligrams per liter.

NR 415.08(6) (6) Coke oven combustion stacks may not emit more than 0.10 pounds of particulate matter per 1000 pounds of exhaust gas or have visible emissions greater than 20% opacity.

NR 415.08 History History: Renum. from NR 154.11 (7) and am. Register, September, 1986, No. 369, eff. 10-1-86; am. (3) and (5), Register, May, 1992, No. 437, eff. 6-1-92; am. (1), Register, December, 1995, No. 480, eff. 1-1-96.

NR 415.09 NR 415.09 Compliance schedule for sources of condensible particulate matter.

NR 415.09(1) (1) General compliance schedule. If a source on which construction or modification was last commenced on or before July 1, 1975, other than a heatset web offset press, fails to meet a particulate emission limitation in this chapter because of the inclusion of condensible particulate matter, as defined in s. NR 439.02 (4), in the determination of emission rates or concentrations, the owner or operator of the source shall achieve final compliance with the applicable limitation by October 1, 1990.

NR 415.09(2) (2) Compliance schedule for heatset web offset presses. If a heatset web offset press on which construction or modification was last commenced on or before July 1, 1975 fails to meet a particulate emission limitation in this chapter because of the inclusion of condensible particulate matter, as defined in s. NR 439.02 (4), in the determination of emission rates or concentrations, the owner or operator of the source may not exceed the following increments of progress in achieving compliance with that limit:

NR 415.09(2)(a) (a) Submit plans for achieving compliance or request a variance in accordance with the provisions of sub. (3) (a) by July 1, 1993.

NR 415.09(2)(b) (b) Award any necessary contracts by July 1, 1994.

NR 415.09(2)(c) (c) Commence construction, installation or modification of any emission control system by December 31, 1994.

NR 415.09(2)(d) (d) Complete construction, installation or modification of any emission control system by July 1, 1995.

NR 415.09(2)(e) (e) Achieve final compliance with the applicable emission limit by December 31, 1995.

NR 415.09(3) (3) Variance. Notwithstanding sub. (2), the owner or operator of a source constructed or modified on or before July 1, 1975 which fails to meet a particulate emission limitation in this chapter because of the inclusion of condensible particulate matter, as defined in s. NR 439.02 (4), in the determination of emission rates or concentrations may request in writing a variance from the emission limitation from the department under par. (a) on or before July 1, 1993 if the source is a heatset web offset press.

NR 415.09(3)(a) (a) The department may grant a variance under this paragraph and set an alternate emission limitation under the criteria and procedures outlined in s. NR 436.05 (2) and (3) if compliance with the emission limitation is shown to be technologically or economically infeasible.

NR 415.09(3)(b) (b) The department shall grant a variance under this paragraph and set an alternate emission limitation if the following criteria are met:

NR 415.09(3)(b)1. 1. The variance will not delay attainment or prevent maintenance of any ambient air quality standard, as determined by methods acceptable to the department.

NR 415.09(3)(b)2. 2. The applicable particulate emission limitation for the air contaminant source for which a variance is requested was promulgated on or before October 1, 1987.

NR 415.09(3)(b)3. 3. The request for variance includes the report of a test conducted according to the methods and procedures of s. NR 439.07, for the air contaminant source for which the variance is requested, which demonstrates noncompliance with the applicable particulate emission limitation.

NR 415.09(3)(b)4. 4. The air contaminant source for which a variance is requested is not reasonably capable of complying with the applicable emission limitation except by means of the installation and operation of an electrostatic precipitator, fabric filter baghouse or wet scrubber for particulates or the source is equipped with such a control device and demonstrates to the department’s satisfaction that compliance is still not achievable.

NR 415.09(3)(c) (c) The department may revoke or modify any variance granted under this subsection in accordance with the provisions of s. NR 436.05 (4).

NR 415.09 History History: Cr. Register, September, 1987, No. 381, eff. 10-1-87; am. (1) (intro.) and (c), renum. (2) to be (3) and am. (intro.), cr. (2), Register, April, 1989, No. 400, eff. 5-1-89; am. (1) (intro.), (3) (intro.), r. (1) (a) to (e)., Register, December, 1995, No. 480, eff. 1-1-96.