Commonwealth of Massachusetts 

Executive Office of Energy & Environmental Affairs 

Department of Environmental Protection 

Southeast Regional Office " 20 Riverside Drive, Lakeville MA 02347 - 5os-946-2700 

DEVAL L PATRICK RICHARD K_ SULLIVAN JR, 

Governor 

TIMOTHY P MURRAY 

Lieutenant Governor 

February 16, 2012 

Peter Balkus, Director F&H Station III 

Dominion Energy Brayton Point, LLC 

5000 Dominion Boulevard 

Glen Allen, Virginia 03060-6711 

RE : AMENDED EMISSION CONTROL PLAN DRAFT APPROVAL 

Application for : BWP AQ 25 

Transmittal Number : X241755 

Application Number: SE-12-003 

Source Number: 1200061 

Secretary 

KENNETH L. KIMMELL 

Commissioner 

310 CMR 7.29 Power Plant Emission Standards 

AT : Dominion Energy Brayton Point, LLC 

Brayton Point Station 

1 Brayton Point Road 

Somerset, Massachusetts 02726-0440 

Dear Mr. Balkus : 

The Southeast Region of the Department of Environmental Protection (Department), 

Bureau of Waste Prevention, has reviewed your amended application for approval of the 

Emission Control Plan (ECP) application dated January 25, 2012 . This amended application 

has been submitted to describe how emission limitations and compliance schedules for the 

control of certain designated pollutants contained in 310 CMR 7 .29, "Emission Standards for 

Power Plants," will be implemented for equipment and processes located at the Dominion 

Energy Brayton Point, LLC - Brayton Point Station ("Dominion") at Brayton Point Road in 

Somerset, Massachusetts . This application for approval of the ECP bears the signature of Mr. 

Peter Balkus as the company contact responsible for compliance with 310 CMR 7.29. 

The amended ECP application proposes a Unit 1, 2, 3 and 4 permit restriction to 

disallow the use of 310 CMR 7 .29 Sulfur Dioxide (SOz) Early Reduction Credits (ERC's) or 

Federal Acid Rain allowances for compliance with 310 CMR 7.29 after June 1, 2014, in support 

of the Massachusetts Regional Haze State Implementation Plan (SIP). 

This information is available in alternate format. Call Michelle Waters-Ekanem, Diversity Director, at 617-292-6761 . TDD>Y 1-866-639-7622 or 1-617-674-6868 

MassDEP Website: www.mass.govldep 

Printed on Recycled Paper 
The Department has previously approved, pursuant to 310 CMR 7.29, the following 

air pollution controls all of which have been constructed and are in operation, other than the 

Unit 3 Dry Scrubber and Fabric Filter and the Powder Activated Carbon Injection system 

upstream of the Unit 3 DS/FF that are currently under construction and are anticipated to be 

in commercial operation in the 15t Quarter 2013 : 

" Units 1 and 3 Selective Catalytic Reduction (SCR) NO, emission control systems that 

uses aqueous ammonia for removal of Nitrogen Oxides (NOx) ; 

" Unit 1 and 2 Spray Dryer Absorbers (SDA) for removal of Sulfur Dioxide (SOZ) 

emissions followed by a Fabric Filter (FF) baghouses at the SDA outlets for control of 

particulate matter emissions ; 

" Unit 1 and 2 Powder Activated Carbon (PAC) injection systems upstream of the 

SDA/FF systems for the removal of mercury emissions; 

" Unit 3 Dry Scrubber (DS) for removal of Sulfur Dioxide (SOZ) emissions followed by 

a FF baghouse at the DS outlet for control of particulate matter emissions; 

" Unit 3 PAC injection system upstream of the DS/FF system for the removal of 

mercury emissions; 

" Unit 1, 2 and 3 PAC injection systems installed upstream of the Koppers ESPs with 

the Koppers ESPs taken out of service to provide additional residence time for the 

PAC for the removal of mercury (Hg) ; 

" Ash Reduction Process (ARP) for Unit 1, 2 and 3 . 

This Amended Emission Control Plan (ECP) Final Approval supersedes the 

Amended ECP Final Approval (Application No. 4B08050) dated December 29, 2008; the 

Amended ECP Final Approval (Application No. 4B05053), dated March 29, 2006 ; the Amended 

ECP Final Approval (Application No. 4B04021), dated October 20, 2004 ; and the ECP Final 

Approval (Application No. 4B01042), dated June 7, 2002. 

LEGAL AUTHORITY 

The Department has adopted 310 CMR 7.29 - a regulation to tower emissions of 

sulfur dioxide (SOz), carbon dioxide (COz), nitrogen oxides (NO,) and mercury (Hg) from 

certain power plants, and to establish a framework for reductions in emissions of carbon 

monoxide (CO) and fine particulate matter (PM 2.5) - pursuant to the Massachusetts General 

Laws, Chapter 111, Sections 142 A-M. 

Regulation 310 CMR 7.29 requires any person who owns, leases, operates or controls 

an affected facility to comply with 310 CMR 7 .29 in its entirety . An affected facility means a 

facility which emitted greater than 500 tons of SOZ and 500 tons of NO during any of the 

calendar years 1997, 1998, or 1999, and which includes a unit which is a fossil fuel fired 

boiler or indirect heat exchanger that : (1) is regulated by 40 CFR Part 72 (the Federal Acid 

Rain Program) ; (2) serves a generator with a nameplate capacity of 100 megawatts (MW) 

or more ; (3) was originally permitted prior to August 7, 1977 ; and (4) had not subsequently 

received a Plan Approval pursuant to 310 CMR 7 .00 : Appendix A or a Permit pursuant to the 

regulations for Prevention of Significant Deterioration, 40 CFR Part 52, prior to October 31, 

1998 . Dominion Energy Brayton Point, LLC is an affected facility . 

The purpose of 310 CMR 7.29 is to control emissions of NO,,, SOZ, Hg, CO, CO2, and 

PM 2 .5 (together, "pollutants") from affected electric generating facilities in Massachusetts . 

310 CMR 7 .29 accomplishes this by establishing maximum output-based emission rates for 

NO,, SOZ, and CO2, establishing maximum output-based emission rates or minimum 
removal efficiencies for Hg, and establishing a cap on COZ and Hg emissions from affected 

facilities . The maximum output-based emission rate and cap for COZ is applicable through 

December 31, 2008 and as of January 1, 2009 COZ emissions will be subject to the 

provisions of 310 CMR 7 .70 Massachusetts COz Budget Trading Program . Emission limits for 

CO and PM 2 .5 have not been addressed at this time. 

Applicable requirements and limitations contained in 310 CMR 7 .29 shall not supersede, 

relax or eliminate any more stringent conditions or requirements (e.g . emission limitation(s), 

testing, record keeping, reporting, or monitoring requirements) established by regulation or 

contained in a facility's previously issued source specific Plan Approval(s) or Emission Control 

Plan(s) . The facility must amend its Operating Permit application and revise their Operating 

Permit to include the Amended ECP Final Approval . 

Based upon the above, the Department has determined that the referenced Amended 

ECP Application is administratively and technically complete and that the proposed 

modifications are in conformance with current air pollution control engineering practices and 

hereby issues this Amended ECP FINAL Approval for the proposed modifications of your 

power plant unit(s), with the conditions listed below. 

* Legend to Abbreviated Terms within Tables 1 through 6 : 

EU # = Emission Unit Number 

NO, = Nitrogen Oxides 

SOZ = Sulfur Dioxide 

Hg = Mercury 

CO = Carbon Monoxide 

COZ = Carbon Dioxide 

PM 2 .5 = Fine Particulate Matter 

MMBTU/HR = fuel heat input in million British Thermal Units per hour 

MW (NET) = net electrical output in Megawatts 

Ibs/MWh = pounds per Megawatt-hour of net electrical output 

Ibs/GWh = pounds per Gigawatt-hour of net electrical output 

MFR = Manufacturer 

CEMS = Continuous Emission Monitors 

R-C = Research-Cottrell 
1 . EQUIPMENT DESCRIPTION 

The following emission units (Table 1) are subject to and regulated by this Amended 

ECP Final Approval: 

Table 1 * 

EU # DESCRIPTION OF EU DESIGN CAPACITY POLLUTION CONTROL MEASURES, 

EMISSION UNIT (MMBTU/HR) -MW (NET) (PCM), 

EU 1 Combustion 2,250 255 Selective Catalytic Reduction 

Engineering Ash Reduction Process 

MFR # 19407 Type R-C Electrostatic Precipitators 

CC, Low NO Burners with Overfire Air 

Water Tube Boiler Management of Lower Sulfur Fuels 

Spra y Dry er Absorber 

Fabric Filter Ba house 

Powder Activated Carbon 

EU 2 Combustion 2,250 255 Ash Reduction Process 

Engineering R-C Electrostatic Precipitators 

MFR # 19617 Type Low NO Burners with Overfire Air 

CC, Manag ement of Lower Sulfur Fuels 

Water Tube Boiler Spray Dryer Absorber 

Fabric Filter Ba house 

Powder Activated Carbon 

EU 3 Babcock & Wilcox 5,655 633 Selective Catalytic Reduction 

Model # UP - 52 Ash Reduction Process 

Water Tube Boiler R-C Electrostatic Precipitators 

Low NO Burners with Overfire Air 

Management of Lower Sulfur Fuels 

D Scrubber 

Fabric Filter Ba house 

Powder Activated Carbon 

EU 4 Riley Stoker 4,800 446 Electrostatic Precipitators 

Model # 1SR Low NO Burners 

Water Tube Boiler Management of Lower Sulfur Fuels 

Flue Gas Recirculation 

Table 1 Notes: 

1 . Details of the Proposed Pollution Control Measures including alternatives under 

consideration are described in Sections E, F, and G of the application . 
2. APPLICABLE REQUIREMENTS 

A. EMISSION LIMITS AND RESTRICTIONS 

Dominion shall comply with the emission limits/restrictions as contained in Table 2 

below . The schedule for compliance with these emission limitations is contained in Table 6 of 

this Amended ECP Final Approval. 

Table 2 ~w . 

EU # POLLUTANT EMISSION LIMI"I'/STAN0}~Ial~ . _ MPPLI1,CABLE REGULATION 

AND/OR' : 

. 

APPROVAL NUMBER 

EU 1, NO), Shall not exceed 1 .5 Ibs/MWh calculated over any 310 CMR 7.29(5)(a)l .a . 

EU 2, consecutive 12 month period, recalculated monthly. 

EU 3 , 

EU 4 hall not exceed 3.0 Ibs/MWh calculated over any 310 CMR 7 .29(5)(a)l .b . 

individual month. 

SOZ Shall not exceed 6.0 Ibs/MWh calculated over any 310 CMR 7.29(5)(a)2 .a . 

consecutive 12 month period, recalculated monthly. 

Shall not exceed 3.0 Ibs/MWh calculated over any 12 310 CMR 7.29(5)(a)2 .b .i . 

month period, recalculated monthly. 

Shall not exceed 6.0 Ibs/MWh calculated over any 310 CMR 7.29(5)(a)2 .b .ii . 

individual month. 

EU 1, Hg Total annual mercury emissions from combustion of 310 CMR 7 .29(5)(a)3 .c . 

EU 2, solid fuels in units subject to 40 CFR Part 72 located a 

EU 3 n affected facility or from re-burn of ash in 

Massachusetts shall not exceed the average annual 

missions of 146.6 pounds per calendar year, 

calculated using the results of the stack tests required 

in 310 CMR 7.29(5)(a)3.d .ii . . 

85% Removal Efficiency or 0.0075 Ibs/GWh 7.29(5)(a)3.e .i . or ii . 

95% Removal Efficiency or 0.0025 Ibs/GWh 7.29(5)(a)3.f.i . or ii . 

EU 1, CO Reserved .' 310 CMR 7 .29(5)(a)4 . 

EU 2 , 

EU 3, COz Emissions of carbon dioxide from the affected facility 310 CMR 7 .29(5)(a)5 .a . 

EU 4 in the calendar year, expressed in tons, from Part 72 

units located at the affected facility shall not exceed 

historical actual emissions of 8,585,152 tons.z, 3 

Shall not exceed 1800 Ibs/MWh in the calendar year.3 310 CMR 7 .29(5)(a)5 .b . 

PM 2 .5 Reserved .' 310 CMR 7.29(5)(a)6 . 
Table 2 Notes: 

1 . The Department has reserved these areas in the regulations for further development. 

2. If the Department has received a technically complete Plan Approval application 

under 310 CMR 7.02 for a new or re-powered electric generating unit subject to 40 

CFR Part 72 at an affected facility prior to May 11, 2001, then the emissions from the 

new or re-powered unit may be included in the calculation of historical actual 

emissions. The calculation of historical actual emissions which includes emissions 

from a new or re-powered unit shall not include emissions from any unit shutdown or 

removed from operation at the affected facility that is included in the technically 

complete Plan Approval application pursuant to 310 CMR 7.02 . Provisions for the 

quantification and certification of Greenhouse Gas (GHG) emission reductions, 

avoided emissions, or sequestered emissions for use in demonstrating compliance 

with the COZ emission limitations contained in 310 CMR 7 .29 are contained in 310 

CMR 7 .00 : Appendix B(7) Greenhouse Gas Credit Banking and Trading . 

3 . The COz emission standards shall not apply to the emissions of COZ that occur after 

December 31, 2008. 
B. COMPLIANCE DEMO_ NSTRATION 

The facility is subject to the monitoring/testing, record keeping, and reporting 

requirements as contained in Tables 3, 4 and 5 below and 310 CMR 7.29, as well as the 

applicable requirements contained in Table 2 : 

-- --, , 

Table 3 '~ 

MONTI"`C}IRING/"fESTING REQUIREMENTS 

I EU 1, 

~ 

Actual emissions shall be monitored for individual units and monitored as a facility total for all unit 

~EU 2, included in the calculation demonstrating compliance . Actual emissions shall be monitored in 

EU 3, accordance with 40 CFR Part 75 for SO2, COZ and NO, and 310 CMR 7.29 for Hg . The Department 

EU 4 hall detail the monitoring methodology for CO and PM 2 .5 at the time regulations are promulgated 

by the Department for those parameters . 

Monitor actual net electrical output, expressed in megawatt-hours . Actual net electrical output shall b 

provided for individual units and as a facility total for all units included in the calculation demonstrating 

compliance . 

EU 1, 

EU 2 

~ 

In accordance with 310 CMR 7.29(5)(a)3 .c .i . and 310 CMR 7 .29(5)(a)3 .d .iii ., the portion of total 

EU 3 annual mercury emissions from combustion of solid fossil fuel in units subject to 40 CFR 72 located at 

or from re-burn of ash at an affected facility, determined using emissions testing at least every other 

calendar quarter from October 1, 2006 until mercury CEMS are used to demonstrate compliance with 

he standards contained in 310 CMR 7.29(5)(a)3 .e . or f. and using mercury CEMS thereafter. Stack 

tests for mercury shall consist at a minimum of three runs at full load on each unit firing solid fossil fuel 

or ash according to a testing protocol acceptable to the Department . Stack tests for mercury, and 

certification and annual Relative Accuracy Test Audits for mercury CEMS, shall determine total and 

particulate-bound mercury. 

In accordance with 310 CMR 7.29(5)(a)3 .c .ii .(i), when ash produced by an affected facility is used in 

Massachusetts as a cement kiln fuel, as an asphalt filler, or in other high temperature processes that 

volatilize mercury, the mercury content of the utilized ash shall be measured weekly using a method I 

acceptable to the Department. 

In accordance with 310 CMR 7 .29(5)(a)3 .e . and f., any person who owns, leases, operates or controls 

an affected facility which combusts solid fossil fuel or ash shall monitor a facility's average total 

mercury removal efficiency or emissions rate for those units combusting solid fossil fuel or ash . This 

will be based on a mercury CEMS using the methodology approved by the Department in the 

monitoring plan required under 310 CMR 7.29(5)(a)3 .g . and shall be calculated on a rolling 12 month 

basis. 

In accordance with 310 CMR 7.29(5)(a)3 .g .i ., by January 1, 2008, any person who owns, leases, 

operates or controls an affected facility which combusts solid fossil fuel or ash shall install, certify, and 

operate CEMS to measure mercury stack emissions from each solid fossil fuel- or ash-fired unit at a 

facility subject to 310 CMR 7.29. 

Actual emissions shall be monitored for individual units and monitored as a facility total for all units 

included in the calculation demonstrating compliance . Actual emissions shall be monitored in 

accordance with 310 CMR 7 .29(7)(b)l .b ., c., and d. for Hg. 

In accordance with 310 CMR 7.29(7)(g), operate each continuous emission monitoring system at all 

times that the emissions unit(s) is operating except for periods of CEMS calibrations checks, zero span 

adjustment, and preventive maintenance as described in the monitoring plan approved by the 

Department and as determined during certification . Notwithstanding such exceptions, in all cases 

obtain valid data for at least 75% of the hours per day, 75% of the days per month, and 90% of the 

hours per quarter during which the emission unit is combusting solid fossil fuel or ash . 
Table 4 ~ 

EU# RECORD KEEPING REQUIREMENTS 

EU 1 Maintain a record of actual emissions for each regulated pollutant for each of the preceding 1 

EU 2 months. Actual emissions shall be recorded for individual units and as a facility total for al 

EU 3 units included in the calculation demonstrating compliance . Actual emissions provided under 

EU 4 this section shall be recorded in accordance with 40 CFR Part 75 for SOz, COZ and NO,, and 310 

CMR 7.29 for Hg . The Department shall detail the monitoring methodology for CO, and PM 2 .5 

at the time regulations are promulgated by the Department for those parameters . 

Maintain a record of actual net electrical output for each of the preceding 12 months, expressed i 

megawatt-hours . Records of actual net electrical output shall be maintained for individual units 

and as a facility total for all units included in the calculation demonstrating compliance. 

Maintain a record of the resulting output-based emission rates for each of the preceding 1 

months, and each of the 12 consecutive rolling month time periods, expressed in pounds per 

megawatt-hour . Output based emission rates shall be provided for individual emission units an 

as a facili ty total for all units included in the calculation demonstrating com pliance . 

Keep all measurements, data, reports and other information required by 310 CMR 7.29 on-sit 

for a minimum of five years, or any other period consistent with the affected facility's Operating 

Permit. 

EU 1 In accordance with 310 CMR 7.29(5)(a)3 ., keep records of required mercury stack testing and 

EU 2 ash testing . 

EU 3 In accordance with 310 CMR 7.29(5)(a)3 .g ., maintain a record of all measurements, 

performance evaluations, calibration checks, and maintenance or adjustments for each mercury 

continuous emission monitor. 

In accordance with 310 CMR 7.29(7)(e), for units that apply carbon or other sorbent injection for 

mercury control, the records shall be kept until such time as mercury CEMS are installed at that 

unit . 

In accordance with 310 CMR 7.29(7)(i), any person subject to 310 CMR 7.29(5)(a)3 . shall submit 

the results of all mercury emissions, monitor, and optimization test reports, along with 

supporting calculations, to the Department with-in 45 days after completion of such testing. 

Maintain a record of actual emissions for Hg for each of the preceding 12 months . Actual 

emissions shall be recorded for individual units and as a facility total for all units included in the 

calculation demonstrating compliance. Actual emissions shall be recorded in accordance with 310 

CMR 7.29 7 b i.b . c. and d. for Hg. 

In accordance with 310 CMR 7.29(7), by January 30 of the year following the earliest applicable 

compliance date and January 30 of each calendar year thereafter, the facility shall submit a 

report to the Department demonstrating compliance with the emission standards contained in 

310 CMR 7.29(5)(a) and in an approved emission control plan . For the mercury standards at 

310 CMR 7.29(5)(a)3 .c ., the compliance reports due January 30, 2007 and 2008 shall include the 

quarterly emissions for each quarter beginning October 1, 2006 . For the mercury standards at 

310 CMR 7.29(5)(a)3 .c ., e., and f., the compliance report due January 30, 2009 and each report 

thereafter shall demonstrate compliance with any applicable annual standard for the previous 

calendar year and with any applicable 12-month standard for each of the 12 previous consecutive 

12-month periods. 
table 5 * -- 

EU# REPORTING REQUIREMENTS 

EU 1 By January 30 of the year following the earliest applicable compliance date for the affected 

EU 2 facility under 310 CMR 7.29(6)(c), and January 30 of each calendar year thereafter, the 

EU 3 company representative responsible for compliance shall submit a compliance report to the 

EU 4 Department demonstrating the facility's compliance status with the emission standard 

contained in 310 CMR 7.29(5)(a) and in an approved Emission Control Plan . The report shall 

demonstrate the facility's compliance status with applicable monthly emission rates for each 

month of the previous calendar year, and each of the twelve previous consecutive 12-month 

periods. The compliance report shall include all statements listed in 310 CMR 7 .29(7)(b)4 .1 

he Department may verify the facility's compliance status by whatever means necessary, 

including but not limited to requiring the affected facility to submit information on actual 

electrical output of company generating units provided by the New England Independent 

I 

System O erator ISO or an successor thereto . 

EU 1 In accordance with 310 CMR 7.29(5)(a)3.d .iii ., the results of each stack test for mercury shall 

EU 2 be reported to the Department within 45 days after conducting each stack test . 

EU 3 In accordance with 310 CMR 7.29(5)(a)3.c .ii .(iv), when ash produced by an affected facility i 

used in Massachusetts as a cement kiln fuel, as an asphalt filler, or in other high temperature 

processes that volatilize mercury, a proposal shall be submitted for Department approval a 

least 45 days prior to such use, or at least 45 days prior to October 1, 2006, whichever i ' 

later, detailing the proposed measurement methods to be used to comply wit 

7.29 5 a 3.c .ii . i and (ii ) . 

In accordance with 310 CMR 7.29(5)(a)3.g ., submit a CEMS monitoring plan for Department 

approval at least 45 days prior to equipment installation including, but not limited to, a 

sample calculation demonstrating compliance with the emission limits using conversion 

factors from 40 CFR Part 60 or Part 75 or other pro posed factors . 

In accordance with 310 CMR 7.29(5)(a)3 .g ., submit for Department approval a CEM 

certification protocol at least 21 days prior to certification testing for the CEMS, and an 

pro posed adjustment to the certification testin g at least seven days in advance . 

In accordance with 310 CMR 7.29(5)(a)3.g ., submit a certification report within 45 days o 

the completion of the certification test for Department approval . 

Certify and operate each CEMS in accordance with 310 CMR 7 .29(5)(a)3 .g . 

Submit to the appropriate Department regional office a compliance report in accordance wit 

310 CMR 7 .29(7)(b). 

EU 1 In accordance with 310 CMR 7.29(7)(a), for the mercury standards at 310 CM 

EU 2 7 .29(5)(a)3 .c ., the compliance reports due January 30, 2007 and 2008 shall include the 

EU 3 quarterly emissions for each quarter beginning October 1, 2006. For the mercury standard 

at 310 CMR 7.29(5)(a)3 .c ., e ., and f., the compliance report due January 30, 2009 and each 

report thereafter shall demonstrate compliance with any applicable annual standard for the 

previous calendar year and with any applicable 12-month standard for each of the 1 

previous consecutive 12-month periods. The compliance report shall contain items listed i 

310 CMR 7 .29 ( 7)( b) . 

In accordance with 310 CMR 7.29(7)(g), any person subject to 310 CMR 7 .29(5)(a)3 . shall 

submit the results of all mercury emissions, monitor, and optimization test reports, along with 

supporting calculations, to the Department within 45 days after completion of such testing . 

FACIL Submit by January 15, April 15, July 15 and October 15 for the previous three month 

ITY respectively, a 7.29 construction status report which identifies the construction activities 

which have occurred during the past three months, and those activities anticipated for the 

following three months, and progress toward achieving compliance with the implementatio 

dates identified in Table 6 below . 

Table _5- Notes: 
1 . If the ISO final settlement of actual electrical output is not available, the facility shall 

submit a compliance report based on provisional values of actual electrical output. 

Upon receiving certified ISO values of actual electrical output for all provisional 

months within the calendar year, the facility shall submit a revised compliance report 

within 30 days thereafter. 

3. COMPLIANCE SCHEDULE 

The affected facility shall be in full compliance with the applicable requirements in 

accordance with the dates below : 

TABLE 6 

COMPLIANCE PATH 

POLLUTANT STANDAI`t,D DATE 

NO 

SOZ 

310 CMR 7.29(5)(a)i .a . 

310 CMR 7.29(5)(a)2 .a . 

October 1, 2006 

NO, 

SOZ 

310 CMR 7.29(5)(a)l .b . 

310 CMR 7.29(5)(a)2 .b . 

October 1, 2008 

COZ 310 CMR 7.29(5)(a)5 .a . Calendar Year , 

2006 I 

COZ 310 CMR 7.29(5)(a)S .b . Calendar Year 

2008 

Hg 310 CMR 7.29(5)(a)3.c. October 1, 2006 

Hg 7.29(5)(a)3 .e .i . or ii . January 1, 2008 

Hg 7.29(5)(a)3 .f .i . or ii . October 1, 2012 

Details of the compliance schedule/milestones are described in Section H of the 

amended ECP application . 
4. SPECIAL CONDITIONS FOR ECP 

1 . The Department may verify compliance with 310 CMR 7.29(5) by whatever means 

necessary, including but not limited to: inspection of a unit's operating records ; 

requiring the facility to submit information on actual electrical output of company 

generating units provided to that person by the New England Independent System 

Operator, or any successor thereto; testing emission monitoring devices; and, 

requiring the facility to conduct emissions testing under the supervision of the 

Department. 

2 . The Department is not approving or denying any off-site or non-contemporaneous 

proposed COZ reduction measures at this time . 310 CMR 7 .29(5)(a)5 .c . and d . 

provide that compliance with the COZ emission limitations may be demonstrated by 

using offsite reductions or sequestration in addition to onsite reductions, as long as 

certain established conditions are met. However, while there is a provision for using 

early reductions of SOZ to meet the SOZ emissions limit in 310 CMR 7.29(5)(a)2 .a., 

there is no similar regulatory provision for use of early reductions of COz for 

compliance with 310 CMR7.29(5)(a)5 . Provisions for the quantification and 

certification of Greenhouse Gas (GHG) emission reductions, avoided emissions, or 

sequestered emissions for use in demonstrating compliance with the COZ emission 

limitations contained in 310 CMR 7.29 are contained in 310 CMR 7 .00 : Appendix B(7) 

Greenhouse Gas Credit Banking and Trading . 

3 . Dominion shall not use 310 CMR 7 .29 SOZ Early Reduction Credits (ERC's) or Federal 

Acid Rain allowances for compliance with 310 CMR 7 .29 after June 1, 2014 . 

5. GENERAL CONDITIONS FOR ECP 

1 . The facility shall maintain continuous compliance at all times with the terms of this 

Amended ECP Final Approval and the applicable emission rates in 310 CMR 7 .29. 

2. This Amended ECP Final Approval may be suspended, modified, or revoked by the 

Department, if at any time the facility is violating any applicable Regulation(s) or 

condition(s) of this Amended ECP Final Approval letter . 

3 . This Amended ECP Final Approval consists of Dominion's application materials and 

this Amended ECP Final Approval letter . If conflicting information is found between 

these two documents, then the requirements of the Amended ECP Final Approval 

letter shall take precedence over the documentation in the application materials . 

4 . Should a condition of air pollution occur as a result of the operation of these units, 

then the facility shall immediately take appropriate steps to abate said condition 

even though the facility is otherwise in compliance with this Amended ECP Final 

Approval . 

5 . This Amended ECP Final Approval does not negate the responsibility of the facility to 

comply with this or any other applicable federal, state, or local regulations now or in 

the future . Nor does this Amended ECP Final Approval imply compliance with any 

other applicable federal, state, or local regulations now or in the future . 

6. If provisions or requirements from any other regulation or permit conflict with a 

provision of 310 CMR 7.29, the more stringent of the provisions will apply unless 
otherwise determined by the Department in the affected facility's Operating Permit. 

7. Failure to comply with any of the above stated provisions will constitute a violation of 

the "Regulations", and can result in the revocation of the Amended ECP Final 

Approval granted herein . 

6. MODIFICATION TO THE ECP 

Amendments may be proposed to this approved Emission Control Plan . If the 

Department proposes to approve such amendments, or approve such amendments with 

conditions, then the Department will publish a notice of public comment on an Amended 

ECP Draft Approval, in accordance with M .G .L. c. 30A. The Department will allow a 30-day 

public comment period following publication of the notice, and may hold a public hearing. 

Modifications to an affected facility's monitoring systems approved pursuant to the 

requirements of 40 CFR Part 72 are not subject to such public comment prior to approval. 

All terms and conditions of this Amended ECP Final Approval shall remain in effect until 

otherwise modified by the Department in a subsequent Amended ECP Final Approval . 

7. MASSACHUSETTS ENVIRONMENTAL POLICY ACT 

The Department has determined that the filing of an Environmental Notification Form 

(ENF) with the Secretary of the Executive Office of Energy and Environmental Affairs, for air 

quality control purpose, was not required prior to this action by the Department. 

Notwithstanding this determination, the Massachusetts Environmental Policy Act (MEPA) and 

301 CMR 11 .00 Section 11.04, provide certain "Fail Safe Provisions" which allow the 

Secretary to require the filing of an ENF and/or Environmental Impact Report at a later 

time. 

8. APPEAL OF APPROVAL 

This Amended ECP Final Approval is an action of the Department. If you are 

aggrieved by this action, you may request an adjudicatory hearing. A request for a hearing 

must be made in writing and postmarked within twenty-one (21) days of the date of issuance 

of this Amended ECP Final Approval . 

Under 310 CMR 1 .01(6)(b), the request must state clearly and concisely the facts 

which are the grounds for the request, and the relief sought. Additionally, the request must 

state why the Amended ECP Final Approval is not consistent with applicable laws and 

regulations . 

The hearing request along with a valid check payable to The Commonwealth of 

Massachusetts in the amount of one hundred dollars ($100 .00) must be mailed to : The 

Commonwealth of Massachusetts, Department of Environmental Protection, P.O . Box 4062, 

Boston, MA 02211 . 

The request will be dismissed if the filing fee is not paid, unless the appellant is 

exempt or granted a waiver as described below . The filing fee is not required if the appellant 

is a city or town (or municipal agency) county, or district of the Commonwealth of 

Massachusetts, or a municipal housing authority. 

The Department may waive the adjudicatory hearing filing fee for a person who shows 

that paying the fee will create an undue financial hardship. A person seeking a waiver must 

file, together with the hearing request as provided above, an affidavit setting forth the facts 
believed to support the claim of undue financial hardship . 

Enclosed is a stamped approved copy of the Amended ECP application . 

Should you have questions concerning this matter or regarding the terms or conditions 

of this Amended ECP Final Approval, please do not hesitate to contact the undersigned at 

the Southeast Region at (508) 946-2779 . 

Very truly yours, 

John K . Winkler, Chief 

Permit Section 

Bureau of Waste Prevention 

Enclosure 

ecc : Pamela Faggert, Dominion Resources Services, Inc. 

Cathy Taylor, Dominion Resources Services, Inc. 

Elizabeth Willoughby, Dominion Resources Services, Inc. 

Meredith Simas, Dominion Resources Services, Inc. 

Somerset Board of Selectmen 

Marilyn Levenson, MassDEP-Boston 

Nancy Seidman, MassDEP-Boston 

Glenn Keith, MassDEP-Boston 

Eileen Hiney, MassDEP-Boston 

Yi Tian, MassDEP-Boston 

William Lamkin, MassDEP-NERO 

David Johnston, MassDEP-SERO 

Laurel Carlson, MassDEP-SERO 

Charlie Kitson, MassDEP-SERO 

Laura Black, MassDEP-SERO