§ 52.1488 - Visibility protection.

§ 52.1488 Visibility protection.

Cross Reference

Link to an amendment published at 83 FR 54054, Oct. 26, 2018.

(a) The requirements of section 169A of the Clean Air Act are not met, because the plan does not include approvable procedures for protection of visibility in mandatory Class I Federal areas.

(b) Regulation for visibility monitoring and new source review. The provisions of § 52.28 are hereby incorporated and made a part of the applicable plan for the State of Nevada except for that portion applicable to the Clark County Department of Air Quality and Environmental Management.

(c)-(d) [Reserved]

(e) Approval. On November 18, 2009, the Nevada Division of Environmental Protection submitted the “Nevada Regional Haze State Implementation Plan.” With the exception of the BART determination for NO_X at Reid Gardner Generating Station in sections 5.5.3, 5.6.3 and 7.2; the NO_X averaging time and control type for units 1, 2 and 3 in sub-paragraph (1)(c) of Nevada Administrative Code section 445B.22096; and the NO_X emission limit for unit 3 in sub-paragraph (1)(c) of Nevada Administrative Code section 445B.22096; the Nevada Regional Haze State Implementation Plan, as supplemented and amended on February 18, 2010 and September 20, 2011, meets the applicable requirements of Clean Air Act sections 169A and 169B and the Regional Haze Rule in 40 CFR 51.308.

(f) Source-specific federal implementation plan for regional haze at Reid Gardner Generating Station Units 1, 2 and 3. This paragraph (f) applies to each owner and operator of the coal-fired electricity generating units (EGUs) designated as Units 1, 2, and 3 at the Reid Gardner Generating Station in Clark County, Nevada.

(1) Definitions. Terms not defined below shall have the meaning given to them in the Clean Air Act or EPA's regulations implementing the Clean Air Act. For purposes of this paragraph (f):

Ammonia injection shall include any of the following: anhydrous ammonia, aqueous ammonia or urea injection.

Boiler operating day means any 24-hour period between 12:00 midnight and the following midnight during which any fuel is combusted at any of the units identified in paragraph (f) of this section.

Combustion controls shall mean new low NO_X burners, new overfire air, and/or rotating overfire air.

Continuous emission monitoring system or CEMS means the equipment required by 40 CFR Part 75 to determine compliance with this paragraph (f).

NO_X means nitrogen oxides expressed as nitrogen dioxide (NO₂).

Owner/operator means any person who owns or who operates, controls, or supervises an EGU identified in paragraph (f) of this section.

Unit means any of the EGUs identified in paragraph (f) of this section.

Unit-wide means all of the EGUs identified in paragraph (f) of this section.

Valid data means data recorded when the CEMS is not out-of-control as defined by part 75 and which meets the relative accuracy requirements of this paragraph.

(2) Emission limitations - the total discharge of NOx from Units 1, 2, and 3, expressed as NO₂, shall not exceed 0.20 lb/MMBtu determined over a 30 successive boiler operating day period. For each boiler operating day, hourly emissions of NO₂, in pounds of NO₂, for units 1, 2 and 3 for that day shall be summed together. For each boiler operating day, heat input, in millions of BTU, for units 1, 2 and 3 for that day shall be summed together. Each day the 30 successive boiler operating day NO₂ emission rate, in lb/MMBtu, shall be determined by adding together that day and the preceding 29 boiler operating days' pounds of NO₂ and dividing that total pounds of NO₂ by the sum of the heat input during the same 30-day period.

(3) Compliance date. The owners and operators subject to this section shall comply with the emission limitations and other requirements of this section by June 30, 2016, and thereafter.

(4) Testing and monitoring.

(i) At all times after the compliance date specified in paragraph (f)(3) of this section, the owner/operator of each unit shall maintain, calibrate, and operate a CEMS, in full compliance with the requirements found at 40 CFR part 75, to accurately measure NO_X. diluent, and stack gas volumetric flow rate from each unit. In addition to these requirements, relative accuracy test audits shall be performed for both the NO₂ pounds per hour measurement and the hourly heat input measurement. Each such relative accuracy test audit shall have a relative accuracy, as defined in 40 CFR part 60, appendix F, section 2.6, of less than 20 percent. This testing shall be evaluated each time the 40 CFR part 75 monitors undergo relative accuracy testing. Compliance with the emission limit for NO₂ shall be determined by using valid data that is quality assured in accordance with the requirements of this paragraph.

(ii) If a valid NO_X pounds per hour or heat input is not available for any hour for a unit, that heat input and NO_X pounds per hour shall not be used in the calculation of the unit-wide rolling 30 successive boiler operating day average. Each unit shall obtain at least 90 percent hours of data over each calendar quarter. 40 CFR part 60 Appendix A Reference Methods may be used to supplement the part 75 monitoring.

(iii) Upon the effective date of the unit-wide NO_X limit, the owner or operator shall have installed CEMS software that meets with the requirements of this section for measuring NO₂ pounds per hour and calculating the unit-wide 30 successive boiler operating day average as required in paragraph (f)(2) of this section.

(iv) Upon the completion of installation of ammonia injection on any of the three units, the owner or operator shall install, and thereafter maintain and operate, instrumentation to continuously monitor and record levels of ammonia consumption for that unit.

(5) Notifications.

(i) The owner or operator shall notify EPA within two weeks after completion of installation of combustion controls or ammonia injection on any of the units subject to this section.

(ii) The owner or operator shall also notify EPA of initial start-up of any equipment for which notification was given in paragraph (f)(5)(i) of this section.

(6) Equipment Operations. After completion of installation of ammonia injection on any of the three units, the owner or operator shall inject sufficient ammonia to minimize the NO_X emissions from that unit while preventing excessive ammonia emissions.

(7) Recordkeeping. The owner or operator shall maintain the following records for at least five years:

(i) For each unit, CEMS data measuring NO_X in lb/hr, heat input rate per hour, the daily calculation of the unit-wide 30 successive boiler operating day rolling lb NO₂/MMbtu emission rate as required in paragraph (f)(2) of this section.

(ii) Records of the relative accuracy test for NO_X lb/hr measurement and hourly heat input

(iii) Records of ammonia consumption for each unit, as recorded by the instrumentation required in paragraph (f)(4)(iv) of this section.

(8) Reporting. Reports and notifications shall be submitted to the Director of Enforcement Division, U.S. EPA Region IX, at 75 Hawthorne Street, San Francisco, CA 94105. Within 30 days of the end of each calendar quarter after the effective date of this section, the owner or operator shall submit a report that lists the unit-wide 30 successive boiler operating day rolling lb NO₂/MMBtu emission rate for each day. Included in this report shall be the results of any relative accuracy test audit performed during the calendar quarter.

(9) Enforcement. Notwithstanding any other provision in this implementation plan, any credible evidence or information relevant as to whether the unit would have been in compliance with applicable requirements if the appropriate performance or compliance test had been performed, can be used to establish whether or not the owner or operator has violated or is in violation of any standard or applicable emission limit in the plan.

(

[Reserved]

(g) Approval. On November 18, 2014, the Nevada Division of Environmental Protection submitted the “Nevada Regional Haze Plan 5-Year Progress Report” (“Progress Report”). The Progress Report meets the requirements of the Regional Haze Rule in 40 CFR 51.308.

[50 FR 28553, July 12, 1985, as amended at 52 FR 45137, Nov. 24, 1987; 67 FR 6133, Feb. 8, 2002; 69 FR 54019, Sept. 7, 2004; 77 FR 17341, Mar. 26, 2012; 77 FR 50951, Aug. 23, 2012; 78 FR 53037, Aug. 28, 2013; 82 FR 3129, Jan. 10, 2017; 82 FR 37025, Aug. 8, 2017; 82 FR 48770, Oct. 20, 2017; 83 FR 54054, Oct. 26, 2018]