NR 428.05(3)(d)(d) Combustion turbines. On or after December 31, 2002, no person may cause, allow or permit nitrogen oxides to be emitted from a combustion turbine with a maximum design power output of 50 MWe or greater in an amount greater than the following during the ozone season: NR 428.05(3)(d)1.1. Gaseous fuel-fired units. 75 parts per million dry volume (ppmdv), corrected to 15% oxygen, on a 30-day rolling average for units burning gaseous fuel. NR 428.05(3)(d)2.2. Distillate fuel oil-fired units. 110 parts per million dry volume (ppmdv), corrected to 15% oxygen, on a 30-day rolling average basis for units burning distillate fuel oil. NR 428.05(3)(e)(e) Reciprocating engines. On or after December 31, 2002, no person may cause, allow or permit nitrogen oxides to be emitted during the ozone season from reciprocating engines with a maximum design power output of 2000 hp or greater in excess of the following limits: NR 428.05(3)(e)3.3. 8.5 grams per brake horsepower-hour for distillate fuel oil-fired units. NR 428.05(3)(f)(f) Emissions units using secondary fuel. An emissions unit that is capable of firing secondary fuel is not subject to the requirements under this subsection when utilizing only a secondary fuel if any of the following apply: NR 428.05(3)(f)1.1. The emissions unit heat input capacity or maximum design power output while utilizing the secondary fuel is less than the applicability thresholds under this subsection. NR 428.05(3)(f)2.2. The emissions unit burns the secondary fuel only during any of the following periods: NR 428.05(3)(f)2.a.a. Supply interruption or curtailment of primary fuel. The secondary fuel usage under this paragraph may not exceed 500 hours within a 12 consecutive month time period unless the owner or operator obtains a fuel variance under s. NR 436.06. NR 428.05(3)(f)2.b.b. Periodic testing, maintenance, or operator training of the secondary fuel when the periodic testing, maintenance, or operator training does not exceed a combined total of 48 hours during any calendar year. NR 428.05(3)(f)3.3. The secondary fuel constitutes less than 1 percent on an energy equivalent basis of the emissions unit’s fuel consumption within the most recent 12 consecutive month time period. NR 428.05(4)(a)1.1. The owner or operator of each NOx emissions unit subject to the requirements of sub. (3) shall comply with the monitoring requirements of subch. III. NR 428.05(4)(a)2.2. The emissions measurements recorded and reported in accordance with subch. III shall be used to determine compliance by the unit with the NOx emissions performance standard under sub. (3). NR 428.05(4)(b)1.1. The owner or operator of an emissions unit subject to the requirements of sub. (3) (a) shall determine the average NOx emission rate, in pound per million Btu, using the methods and procedures specified in 40 CFR part 75, Appendices A through I, incorporated by reference in s. NR 484.04 (27). NR 428.05(4)(b)2.2. The owner or operator of an emissions unit subject to any of the requirements of sub. (3) (b) to (e) shall determine the unit’s average NOx emission rate using methods and procedures specified in 40 CFR part 60, Appendix B, incorporated by reference in s. NR 484.04 (21), or other emissions monitoring methods approved by the department. NR 428.05(5)(a)(a) Unless otherwise provided, the owner or operator of each NOx emissions unit subject to the requirements of this section shall keep on site at the source each of the following documents for a period of 5 years from the date the document is created: NR 428.05(5)(a)1.1. All emissions monitoring information, in accordance with subch. III; except that, to the extent that subch. III provides for a 3-year period for record retention, the 3-year period shall apply. NR 428.05(5)(a)2.2. Copies of all reports, compliance certifications and other submissions and all records made or required under the NOx emissions performance program. NR 428.05(5)(b)(b) The owner or operator of the NOx emissions source shall submit the compliance reports and certifications required under the NOx emissions performance program in conjunction with those required under the operation permit requirements of s. NR 407.09. NR 428.05(5)(c)(c) The owner or operator claiming exemption to the requirements under subs. (2) and (3) pursuant to subs. (2) (f) and (3) (f) shall keep a record of all of the following: