Statutes, codes, and regulations
Maryland Administrative code
Title 26 - DEPARTMENT OF ENVIRONMENTPart 2 - SUBTITLES 08-12Subtitle 11 - AIR QUALITY
Chapter 26.11.27 - Emission Limitations for Power Plants
Section 26.11.27.03 - General Requirements

Md. Code Regs. 26.11.27.03

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Current through Register Vol. 51, No. 12, June 14, 2024
Section 26.11.27.03 - General Requirements
A. An electric generating unit subject to this chapter shall comply with the emission limitations for NOx, SO2, and mercury as provided in this regulation.
B. NOx Emission Limitations.
(1) Except as provided in §E of this regulation, annual NOx emissions from each affected electric generating unit may not exceed the number of tons in §B(2) of this regulation.
(2) Annual Tonnage Limitations.

Affected UnitAnnual NOx Tonnage Limitations Beginning
January 1, 2009January 1, 2012
Brandon Shores Unit 12,927 tons2,414 tons
Brandon Shores Unit 23,055 tons2,519 tons
C.P. Crane Unit 1832 tons686 tons
C.P. Crane Unit 2894 tons737 tons
Chalk Point Unit 11,415 tons1,166 tons
Chalk Point Unit 21,484 tons1,223 tons
Dickerson Unit 1672 tons554 tons
Dickerson Unit 2736 tons607 tons
Dickerson Unit 3698 tons575 tons
H.A. Wagner Unit 2673 tons555 tons
H.A. Wagner Unit 31,352 tons1,115 tons
Morgantown Unit 12,540 tons2,094 tons
Morgantown Unit 22,522 tons2,079 tons
R. Paul Smith Unit 355 tons, effective September 1, 2012
R. Paul Smith Unit 4288 tons, effective September 1, 2012
Total19,800 tons16,667 tons

(3) Except as provided in §E of this regulation, ozone season NOx emissions from each affected electric generating unit may not exceed the number of tons in §B(4) of this regulation.
(4) Ozone Season Tonnage Limitations.

Affected UnitOzone Season NOx Tonnage Limitations Beginning May 1, 2009
Brandon Shores Unit 11,363 tons
Brandon Shores Unit 21,449 tons
C.P. Crane Unit 1345 tons
C.P. Crane Unit 2385 tons
Chalk Point Unit 1611 tons
Chalk Point Unit 2657 tons
Dickerson Unit 1311 tons
Dickerson Unit 2333 tons
Dickerson Unit 3314 tons
H.A. Wagner Unit 2278 tons
H.A. Wagner Unit 3583 tons
Morgantown Unit 11,053 tons
Morgantown Unit 21,048 tons
Total8,730 tons

(5) Except as provided in §§B(7) and E of this regulation, if after reviewing 2009 ozone season measured ozone levels at air monitoring stations located in Maryland, the Department determines that ozone levels in Maryland exceed the levels required to meet the National Ambient Air Quality Standard for ozone, commencing on May 1, 2012, ozone season NOx emissions from each affected electric generating unit may not exceed the number of tons in §B(6) of this regulation.
(6) Ozone Season Tonnage Limitations.

Affected UnitOzone Season NOx Tonnage Limitations Beginning May 1, 2012
Brandon Shores Unit 11,124 tons
Brandon Shores Unit 21,195 tons
C.P. Crane Unit 1284 tons
C.P. Crane Unit 2317 tons
Chalk Point Unit 1503 tons
Chalk Point Unit 2542 tons
Dickerson Unit 1257 tons
Dickerson Unit 2274 tons
Dickerson Unit 3259 tons
H.A. Wagner Unit 2229 tons
H.A. Wagner Unit 3481 tons
Morgantown Unit 1868 tons
Morgantown Unit 2864 tons
R. Paul Smith Unit 322 tons, effective September 1, 2012
R. Paul Smith Unit 4118 tons, effective September 1, 2012
Total7,337 tons

(7) Electric System Reliability During Ozone Seasons.
(a) An exceedance of the NOx limitations in §B(4) or (6) of this regulation which occurs because PJM Interconnection, LLC or a successor independent system operator, acts to invoke "Maximum Emergency Generation", "Load Reduction", "Voltage Reduction", "Curtailment of Non-essential Building Load", or "Manual Load Dump" procedures in accordance with the current PJM Manual, or a PJM alert preceding such action as to a generating unit that has temporarily shut down in order to avoid potential interruption in electric service and maintain electric system reliability is not a violation of this chapter provided that:
(i) Within 36 hours following the action, the owner or operator of the affected electric generating unit or units notifies the Manager of the Air Quality Compliance Program of the action taken by PJM Interconnection and provides the Department with documentation of the action which is satisfactory to the Department;
(ii) Within 48 hours after completion of the action, the owner or operator of the affected unit or units provides the Department with the estimated NOx emissions in excess of the emission limitation; and
(iii) Not later than December 31 of the year in which the emission limitation is exceeded, the owner or operator of the affected generating unit or units transfers to the Maryland Environmental Surrender Account, ozone season NOx allowances equivalent in number to the tons of NOx emitted in excess of the emission limitation in §B(4) or (6), as applicable.
(b) The owner or operator of an electric generating unit or system, as applicable, shall send written notice to the Manager of the Air Quality Compliance Program not later than 5 business days following the day when the cumulative ozone season NOx emissions of an electric generating unit or system, as applicable, are:
(i) Equal to approximately 80 percent of the applicable ozone season emission limitation; and
(ii) Equal to the applicable ozone season emission limitation.
C. SO2 Emission Limitations.
(1) Except as provided in §E of this regulation, annual SO2 emissions from each affected electric generating unit may not exceed the number of tons in §C(2) of this regulation.
(2) Annual Tonnage Limitations.

Affected UnitAnnual SO2 Tonnage Limitations Beginning
January 1, 2010January 1, 2013
Brandon Shores Unit 17,041 tons5,392 tons
Brandon Shores Unit 27,347 tons5,627 tons
C.P. Crane Unit 12,000 tons1,532 tons
C.P. Crane Unit 22,149 tons1,646 tons
Chalk Point Unit 13,403 tons2,606 tons
Chalk Point Unit 23,568 tons2,733 tons
Dickerson Unit 11,616 tons1,238 tons
Dickerson Unit 21,770 tons1,355 tons
Dickerson Unit 31,678 tons1,285 tons
H.A. Wagner Unit 21,618 tons1,239 tons
H.A. Wagner Unit 33,252 tons2,490 tons
Morgantown Unit 16,108 tons4,678 tons
Morgantown Unit 26,066 tons4,646 tons
R. Paul Smith Unit 3124 tons, effective September 1, 2012
R. Paul Smith Unit 4644 tons, effective September 1, 2012
Total47,616 tons37,235 tons

D. Mercury Emission Limitations.
(1) For the 12-month period from January 1, 2010 through December 31, 2010 and ending with the 12-month period beginning December 1, 2012 through November 30, 2013, each affected facility shall meet a 12-month rolling average removal efficiency for mercury of at least 80 percent.
(2) For the 12 months beginning January 1, 2013 and thereafter, each affected facility shall meet a 12-month rolling average removal efficiency for mercury of at least 90 percent.
(3) The mercury removal efficiency required in §D(1) and (2) of this regulation shall be determined in accordance with Regulation .04 of this chapter.
E. System-Wide Compliance Determinations.
(1) Compliance with the emission limitations in §§B and C of this regulation may be achieved by demonstrating that the total number of tons emitted from all electric generating units in a system does not exceed the sum of the tonnage limitations for all electric generating units in that system.
(2) A system-wide compliance determination shall be based only upon emissions from units in Maryland that are subject to the emission limitations in §§B and C of this regulation.
(3) If a unit that is part of a system is transferred to a different person that does not own, operate, lease, or control an affected unit subject to this chapter, the transferred unit shall meet the limitations in §§B and C of this regulation applicable to that electric generating unit.

Md. Code Regs. 26.11.27.03

Regulations .03 adopted as an emergency provision effective January 18, 2007 (34:3 Md. R. 291); adopted permanently effective July 16, 2007 (34:14 Md. R. 1246)
Regulation .03 amended as an emergency provision effective April 11, 2009 (36:10 Md. R. 715); amended permanently effective September 7, 2009 (36:18 Md. R. 1382)
Regulation .03 amended effective 40:13 Md. R. 1077, eff.7/8/2013