Scrubber

Pressure

Drop (inches

of water)

Water Flow

Rate (gallons

per minute)

(c) North scrubber with

2 fans and south

scrubber with a windbox fan

33 32 3,710 3,818

(d) South scrubber with

2 fans and north

scrubber with a windbox fan

32 33 3,818 3,710

(e) North scrubber with

2 fans

33 — 3,488 —

(f) South scrubber with

2 fans

— 33 — 3,488

(1) The one affected sintering plant is equipped with 2

scrubbers that are identified as north scrubber and south

scrubber.

(3) One or more of the scrubbers shall be in operation

whenever the sintering plant is in operation.

(4) Compliance with particulate matter requirements is

achieved if at any time the hourly block average of the scrubber pressure drop and water flow rate are not less than the

values in §D(2) of this regulation.

(5) The scrubber pressure drop and water flow rate

shall be monitored by a continuous monitoring system and

the monitoring system data made available to the Department upon request.

(6) Stack Testing Requirements.

(a) The affected sintering plant shall be stack tested

for particulate matter at a frequency of not less than once

each 2.5 years. During a compliance stack test, the scrubber

pressure drop and water flow rate shall be recorded as

hourly block averages.

(b) If the scrubber pressure drop and water flow rate

determined during a compliance stack test differ from the

values in §D(2) of this regulation, the owner or operator may

request the Department to change the values in §D(2) of this

regulation to reflect the revised values.

(c) Upon receiving a request, the Department may

propose amending the regulation to include the revised values. Any amendment shall be submitted to the EPA to be included in the approved SIP.

SHARI T. WILSON

Secretary of the Environment

Subtitle 11 AIR QUALITY

26.11.27 Emission Limitations for Power

Plants

Authority: Environment Article, §§1-101, 1-404, 2-101-2-103, 2-301-2-303,

[Ch. 23, Acts of 2006] 2-1003, 10-102, and 10-103,

Annotated Code of Maryland

Notice of Proposed Action

[09-132-P]

The Secretary of the Environment proposes to amend

Regulations .02 and .03 under COMAR 26.11.27 Emission

Limitations for Power Plants.

Statement of Purpose

The purpose of this action is to establish NOx and SO2

emission limits for R. Paul Smith Power Station electric

generating units. An annual emission cap will be set for

NOx and SO2. An ozone season emission cap will also be set

for NOx emissions.

These amendments will be submitted to the United

States Environmental Protection Agency (EPA) for approval

as a revision to Maryland’s State Implementation Plan.

Background.

Under the Healthy Air Act (HAA), R. Paul Smith units 3

and 4 are defined as an affected facility subject to the requirements of Environment Article, §2-1003(c), Annotated

Code of Maryland. The exception provisions of the HAA authorize the Department to allow the R. Paul Smith facility,

units 3 and 4, to operate without complying with the emissions requirements of the HAA if PJM Interconnection, Inc.

(PJM Inc.) determines that the termination of operation of

the facility will adversely affect the reliability of electrical

service in the PJM region. PJM Inc. conducted the evaluation and determined that the R. Paul Smith facility is

needed to maintain reliability.

The HAA also requires that if R. Paul Smith units 3 and 4

are allowed to operate without complying with the emissions limitations established in the statute, then the following conditions must be met: ‘‘(1) The facility may not operate at emissions levels greater than the highest level

measured at the facility during the calendar years 2000

through 2004; and (2) The Department shall review the operations of the facility and adopt regulations to establish an

alternative emissions requirement for the facility.’’ These

amendments establish limitations that comply with these

conditions.

The Maryland Department of the Environment has reviewed the R. Paul Smith facility’s operations and proposes

the following alternative emissions requirement, as authorized by Environment Article, §2-1003(c)(2), Annotated

Code of Maryland.

At the end of 2011, the Department will evaluate the alternate limitations and determine whether more stringent

emission limitations are warranted. The determination will

include an assessment of whether more stringent NOx and

SO2 limits are needed to enable the western Maryland region to comply with the most recent national ambient air

quality standards for ozone and fine particulate matter. The

HAA requires an additional emission reduction from affected sources if Maryland does not comply with the national ambient air quality standard for ozone. The Department will also review the 90 percent mercury requirements

that take effect in 2013 and determine whether alternative

limits for mercury beyond 2012 are warranted. The R. Paul

Smith facility has installed new controls that allow the facility to comply with the 80 percent mercury reduction currently required under the statute and regulations.

Prior to the evaluation the Department will also request

that PJM Inc. reevaluate the need for the R. Paul Smith

facility to operate to maintain a reliable electricity supply in

Maryland, in consideration of the effect of any new transmission lines and electric generating stations which may be

constructed in the interim.

The Department will revise the regulations, if needed,

based on PJM’s reevaluation and the Department’s findings.

PROPOSED ACTION ON REGULATIONS 677

MARYLAND REGISTER, VOL. 36, ISSUE 9 FRIDAY, APRIL 24, 2009
Sources Affected.

The R. Paul Smith facility is the only source affected by

the amendments. R. Paul Smith Electric Power Generation

Station is a 62-year-old power plant owned and operated by

the Allegheny Energy Supply Company, L.L.C. The facility

is located in Washington County, Maryland and operates

two coal-fired boilers. Unit 3 is a wall-fired, dry bottom

boiler which produces steam for a turbine rated at 40 megawatts (MW), but is limited to 28 MW. Unit 3’s particulate

emissions are controlled by a single cold side, electrostatic

precipitator (ESP) and NOx emission are controlled by low

NOx burner technology. Unit 4 is a tangentially-fired, dry

bottom boiler and the turbine is rated at 88 MW. Particulate

emissions are controlled by a primary cold side ESP and an

electrostatically enhanced bag-house, and has low NOx

burners and a separate over-fire air system for NOx controls.

Requirements.

The proposed action:

(1) Establishes an emissions cap of 1,390 tons of NOx

beginning with the 12-month period January 1, 2009 to December 31, 2009;

(2) Establishes an emissions cap of 545 tons of NOx beginning with the ozone season May 1, 2009 to September 30,

2009; and

(3) Establishes an emissions cap of 4,590 tons of SO2

beginning with the period January 1, 2010 to December 31,

2010.

These requirements are based on the R. Paul Smith facility’s highest annual emissions reported to the Department

for the years 2000 — 2004.

Expected Emissions Reductions.

The proposed action provides no emission reductions.

Rather, it implements an exception provision for R. Paul

Smith which establishes standards based on the highest

emissions from the facility during the years 2000 — 2004.

Economic Impact on Affected Source.

There are no additional control costs at this time.

Comparison to Federal Standards

There is no corresponding federal standard to this proposed action.

Estimate of Economic Impact

The proposed action has no economic impact.

Economic Impact on Small Businesses

The proposed action has minimal or no economic impact

on small businesses.

Impact on Individuals with Disabilities

The proposed action has no impact on individuals with

disabilities.

Opportunity for Public Comment

The Department of the Environment will hold a public

hearing on the proposed action on May 28, 2009 at 10 a.m.

at the Department of the Environment, 1800 Washington

Boulevard, 1st Floor Aeris Conference Room, Baltimore,

Maryland 21230-1720. Interested persons are invited to attend and express their views. Comments may be sent to

Deborah Rabin, Regulations Coordinator, Air and Radiation

Management Administration, Department of the Environment, 1800 Washington Boulevard, Suite 730, Baltimore,

Maryland 21230-1720, or emailed to drabinmde.state.md.us. Comments must be received not later than May 28,

2009, or be submitted at the hearing. For more information,

call Deborah Rabin at (410) 537-3240.

Copies of the proposed action and supporting documents

are available for review at the following locations: The Air

and Radiation Management Administration; regional offices

of the Department in Cumberland and Salisbury; all local

air quality control offices; and local health departments in

those counties not having separate air quality control offices.

Anyone needing special accommodations at the public

hearing should contact the Department’s Fair Practices Office at (410) 537-3964. TTY users may contact the Department through the Maryland Relay Service at 1-800-735-

2258.

.02 Applicability and Exemptions.

A. — B. (text unchanged)

C. The R. Paul Smith facility is subject to the NOx limitation in Regulation .03B(8) and the SO2 limitation in Regulation .03C(3) of this chapter.

.03 General Requirements.

A. (text unchanged)

B. NOx Emission Limitations.

(1) (text unchanged)

(2) Annual Tonnage Limitations.

Affected Unit

Annual NOx Tonnage

Limitations Beginning

January 1, 2009 January 1, 2012

Brandon Shores Unit 1 — Morgantown

Unit 2 (text unchanged)

[R. Paul Smith Unit 3 67 tons 55 tons

R. Paul Smith Unit 4 349 tons 288 tons]

Total [20,216]

19,800 tons

[16,667]

16,324 tons

(3) (text unchanged)

(4) Ozone Season Tonnage Limitations.

Affected Unit

Ozone Season NOx Tonnage

Limitations Beginning

May 1, 2009

Brandon Shores Unit 1 — Morgantown Unit 2

(text unchanged)

[R. Paul Smith Unit 3 27 tons

R. Paul Smith Unit 4 143 tons]

Total [8,900] 8,730 tons

(5) (text unchanged)

(6) Ozone Season Tonnage Limitations.

Affected Unit

Ozone Season NOx Tonnage

Limitations Beginning

May 1, 2012

Brandon Shores Unit 1 — Morgantown Unit 2

(text unchanged)

[R. Paul Smith Unit 3 22 tons

R. Paul Smith Unit 4 118 tons]

Total [7,337] 7,197 tons

(7) (text unchanged)

(8) Emissions from the R. Paul Smith facility may not

exceed:

(a) An annual tonnage limitation of 1,390 tons of NOx

beginning with the period January 1, 2009 through December 31, 2009; and

(b) An ozone season tonnage limitation of 545 tons of

NOx beginning with the ozone season May 1, 2009 through

September 30, 2009.

678 PROPOSED ACTION ON REGULATIONS

MARYLAND REGISTER, VOL. 36, ISSUE 9 FRIDAY, APRIL 24, 2009
C. SO2 Emission Limitations.

(1) (text unchanged)

(2) Annual Tonnage Limitations.

Affected Unit

Annual SO2 Tonnage

Limitations Beginning

January 1, 2010 January 1, 2013

Brandon Shores Unit 1 — Morgantown

Unit 2 (text unchanged)

[R. Paul Smith Unit 3 161 tons 124 tons

R. Paul Smith Unit 4 841 tons 644 tons]

Total [48,618 tons]

47,616 tons

[37,235 tons]

36,467 tons

(3) Emissions from the R. Paul Smith facility may not

exceed an annual tonnage limitation of 4,590 tons of SO2 beginning with the period January 1, 2010 through December

31, 2010.

D. Mercury Emission Limitations.

(1) — (3) (text unchanged)

(4) The R. P. Smith facility shall meet the mercury requirements in §D(1) — (3) of this regulation.

E. (text unchanged)

SHARI T. WILSON

Secretary of the Environment

PROPOSED ACTION ON REGULATIONS 679

MARYLAND REGISTER, VOL. 36, ISSUE 9 FRIDAY, APRIL 24, 2009