DEVAL L PATRICK 

Governor 

TIMOTHY P MURRAY 

Lieutenant Governor 

DATED February 17, 2012 

Mr. Lamont W. Beaudette 

Dominion Energy Salem Harbor, LLC. 

Salem Harbor Station 

24 Fort Avenue 

Salem, MA 01970 

Dear Mr. Beaudette: 

RE: 

RICHARD K. SULLIVAN JF 

Secretary 

KENNETH L. KIMMELL 

Commissioner 

SALEM - Metropolitan Boston / 

Northeast Region 

310 CMR 7 .29 

Power Plant Emission Standards 

Application No. NE-12-003 

Transmittal No. X241756 

DRAFT AMENDED 

EMISSION CONTROL PLAN APPROVAL 

The Metropolitan Boston/Northeast Region of the Department of Environmental 

Protection, Bureau of Waste Prevention ("MassDEP"), has reviewed your proposal, received 

January 31, 2012, to amend the 310 CMR 7 .29 Emission Control Plan (ECP) included with the 

Administrative Consent Order (ACO-NE-03-7001) of June 19, 2003 . The ECP concerns 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 at the Dominion Energy Salem Harbor, LLC. - Salem Harbor Station 

(ORIS Code : 01626) facility ("the facility" or "the affected facility") located at 24 Fort Avenue 

in Salem, Massachusetts . Your proposal to amend the ECP was submitted as required per 310 

CMR 7.29(6)(a)4. for the incorporation of strategies to maintain compliance with 310 CMR 

7 .29 and in order for the Commonwealth to meet its obligation under Section 169A of the 

Clean Air Act to address regional haze, as described in MassDEP's Regional Haze State 

Implementation Plan. This submittal for amendment of the ECP bears the signature of Mr. 

Lamont W. Beaudette as the company contact responsible for compliance with 310 CMR 7 .29 . 

LEGAL AUTHORITY 

MassDEP has adopted 310 CMR 7 .29 - a regulation to lower emissions of sulfur 

dioxide (SOZ), carbon dioxide (COZ), nitrogen oxides (NOx), and mercury (Hg) from certain 

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

(CO) and fine particulate matter (PM2,5) - 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 NOx 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 

This information is available in alternate format. Call Michelle Waters-Ekanem, Diversity Director, at 617-292-6761 . TDD# 1-866-539-7622 or 1-617-574-6868 

MassDEP Website www mass gov/dep 

Commonwealth of Massachusetts 

Executive Office of Energy & Environmental Affairs 

Department of Environmental Protection 

Northeast Regional Off ice - 205B Lowell Street, Wilmington MA 01887 - 978-684-3200 

Printed on Recycled Paper 
Dominion Energy Salem Harbor, LLC - Salem Harbor Station Draft Amended Emission Control Plan Approval 

Application No. NE-12-003, Transmittal No. X241756 

Page 2 of 13 

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 . 

The purpose of 310 CMR 7.29 is to control emissions of NOx, SOz, Hg, CO, C02, and 

PM2,5 (together, "pollutants") from affected electric generating facilities in Massachusetts . 

310 CMR 7.29 accomplishes this by establishing maximum output-based emission rates for 

NOx, 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 COZ emissions standards do not apply to COZ emissions after December 31, 

2008 . The regulations do not impose CO and PMZ,5 emission standards at this time but 

indicate that development of emission standards is reserved. 

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 to include the ECP Approval . 

Based upon the above, MassDEP has determined that the referenced ECP Application is 

administratively and technically complete and that the proposed amendments are in 

conformance with current air pollution control engineering practices and hereby issues this 

Draft Amended ECP 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 

NOx = Nitrogen Oxides 

SOZ = Sulfur Dioxide 

Hg = Mercury 

CO = Carbon Monoxide 

COZ = Carbon Dioxide 

PMZ,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 

ACO = Administrative Consent Order 

GHG = Greenhouse Gas 

No. = Number 

< = Less than or equal to 

>_ = Greater than or equal to 
Dominion Energy Salem Harbor, LLC - Salem Harbor Station Draft Amended Emission Control Plan Approval 

Application No. NE-12-003, Transmittal No. X241756 

Page 3 of 13 

1. EQUIPMENT DESCRIPTION 

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

Approval : 

- - 

Table 1 * 

- 

' EU # DESCRIPTION OF EU DESIGN CAPACITY POLLUTION CONTROL MEASURES (PCM) 

EMISSION UNIT MMBTU HR MW NET 

EU 1 Babcock & Wilcox 954 84 Low NO Burners LNB 

Model No. RB103 

Water Tube Boiler 

Selective Non-Catalytic Reduction 

SNCR 

Combustion Tuning and Controls 

Electrostatic Precipitators 

Management of Lower Sulfur Fuels 

EU 2 Babcock & Wilcox 

Model No. RB103 

966 81 Selective Non-Catalytic Reduction 

(SNCR) 

Water Tube Boiler Combustion Tuning and Controls 

Electrostatic Precipitators 

Management of Lower Sulfur Fuels 

EU 3 Babcock & Wilcox 1,696 150 Low NO Burners with Overfire Air 

Model No. RB284 

Water Tube Boiler 

Selective Non-Catalytic Reduction 

SNCR 

Reagent (Calcium Bromide) Injection 

System [application for proposal under 

review Transmittal No. X250364 

Combustion Tuning and Controls 

Electrostatic Preci pitators 

Management of Lower Sulfur Fuels 

EU 4 Riley Stoker 4,800 440 Low NOX Burners 

Model No . iSR 

Water Tube Boiler 

Selective Non-Catalytic Reduction 

(SNCR) [application for proposal under 

review, Application No . MBR-11-COM004 Transmittal No . X238706 

Combustion Tuning and Controls 

Electrostatic Preci pitators 

Management of Lower Sulfur Fuels 
Dominion Energy Salem Harbor, LLC - Salem Harbor Station Draft Amended Emission Control Plan Approval 

Application No. NE-12-003, Transmittal No. X241756 

Page 4 of 13 

2. APPLICABLE REQUIREMENTS 

A. EMISSIO N LIMITS AND RESTRICTIONS 

The facility owner/operator shall comply with the emission limits/restrictions as 

contained in Table 2 below . The schedule for compliance with these emission limitations is 

contained in Section 3 . Compliance Schedule of this ECP Approval . 

Table 2 * 

EU # OQI.LtJ'TANT . EMISSION LIMIT/STANDARD 4 APPLICABLE REGULATION` : 

s APFROVAL NUM$ER, 

AND/OR ADMINISTRATIVE 

CONSENT ORDER 

EU 1, NOx _< 1 .5 lbs/MWh calculated over any consecutive 12 month 310 CMR 7 .29(5)(a)i .a . 

EU 2, period, recalculated monthly' ACO-NE-03-7001 

EU 3, ACO-NE-03-7001-AMEND#1 

EU 4 < 3.0 lbs/MWh calculated over any individual calendar 310 CMR 7 .29(5)(a)1 .b. 

month 1 ACO-NE-03-7001 

ACO-NE-03-7001-AMEND#1 

SOZ _< 6.0 lbs/MWh calculated over any consecutive 12 month 310 CMR 7 .29(5)(a)2 .a. 

period, recalculated monthly 1,2 ACO-NE-03-7001 

ACO-N E-03-7001-AM EN D# 1 

< 3.0 lbs/MWh calculated over any consecutive 12 month 

- 

310 CMR 7 .29(5)(a)2.b.i . 

period, recalculated monthly 1,2, 3 ACO-NE-03-7001 

ACO-NE-03-7001-AMEND#1 

< 6.0 lbs/MWh calculated over any individual calendar 310 CMR 7 .29(5)(a)2 .b.ii . 

month 1,2,3 ACO-NE-03-7001 

ACO-NE-03-7001-AMEND#1 

EU 1, Hg < 21 .2 pounds per calendar ear 1,4 310 CMR 7.29 5 a 3 .c . 

EU 2, > 85% removal efficiency calculated on a rolling 12 month 310 CMR 7.29(5)(a)3 .e.i . or 

EU 3 basis; or, < 0 .0075 Ibs/GWh calculated on a rolling 12 310 CMR 7 .29(5)(a)3.e.ii . month basis 1,5,6 

Effective October 1, 2012, > 95% removal efficiency 310 CMR 7 .29(5)(a)3.f .i . or 

calculated on a rolling 12 month basis; or, < 0 .0025 310 CMR 7 .29(5)(a)3.f.ii . 

Ibs GWh calculated on a rollin g 12 month basis 1" s,s 

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

EU 2, C02 < 4 , 286, 053 tons in the calendar ear 17' 310 CMR 7.29 5 a 5.a. 

EU 3, < 1800 Ibs MWh in the calendar year.', l0 310 CMR 7 .29 5 a 5.b. 

~ EU 4 PM2, Reserved' 310 CMR 7 .29(5)(a)6 . 

Table 2 

1 . 

2. 

Notes. 

In accordance with 310 CMR 7.29(5)(b)1 ., compliance with the emission standards in 310 CMR 7.29(5)(a) 

may be demonstrated by dividing the total emissions of each pollutant by the total net electrical output 

from all electric generating units subject to 40 CFR Part 72 located at the affected facility as of May 11, 

2001 or repowered at the affected facility after May 11, 2001 . For demonstrating compliance with the Hg 

emissions standards in 310 CMR 7.29(5)(a)3., the person who owns, leases, operates or controls an 

affected facility shall Include in the calculation only units that fire solid fossil fuel or ash, or that repowered 

a unit that fired solid fossil fuel or ash. 

In accordance with 310 CMR 7.29(5)(b)2 ., compliance with the S02 emission standards in 310 CMR 

7.29(5)(a)2 . may be demonstrated by using SOZ reductions at the affected facility below historical actual 

emissions which were made after May 11, 2001, and prior to the earliest applicable date set in 310 CMR 

7.29(6) . The total amount of tons produced through early reductions each year is calculated by multiplying the 

facility's net electrical output for that year times (the historical actual emission rate minus that year's actual 

emission rate in Ibs/MWh) divided by 2000. The amount of early reductions, with supporting information, shall 

be provided to MassDEP prior to use for compliance with 310 CMR 7.29(5)(a)2 .a . . Each ton of reduction may 
Dominion Energy Salem Harbor, LLC - Salem Harbor Station Draft Amended Emission Control Plan Approval 

Application No. NE-12-003, Transmittal No . X241756 

Page 5 of 13 

be used, once, to offset one ton of excess emissions from the facility . Excess emissions are any emissions 

above a level equal to the net electrical output of the facility times the applicable emission standard in 310 

CMR 7.29(5)(a)2 . . 

3. In accordance with 310 CMR 7.29(5)(b)3 ., compliance with the S02 emission standards in 310 CMR 

7.29(5)(a)2 .b . may be demonstrated by using S02 allowances created pursuant to 40 CFR Part 72 (the 

Federal Acid Rain Program) . Three allowances shall be used to offset each ton of excess emissions above the 

emission standard. Such S02 allowances shall be in addition to those allowances used by the facility to comply 

with the requirements of 40 CFR Part 72, and shall be transferred to MassDEP and retired for the benefit of the 

environment . 

4. In accordance with 310 CMR 7.29(5)(a)3 .c ., the Hg emission limit is based on the average annual 

emissions calculated using the results of the stack tests required in 330 CMR 7.29(5)(a)3 .d .ii . . Total 

annual Hg emissions equal the total emissions from combustion of solid fossil fuel and re-burn of ash, 

where such ash was produced by the combustion of fossil fuel or ash at the facility . In accordance with 

310 CMR 7.29(2), total Hg means the sum of particulate-bound and vapor-phase (elemental and oxidized) 

Hg in combustion gases or emitted to the atmosphere . 

5. In accordance with 310 CMR 7.29(5)(a)3 .e .i . and 310 CMR 7.29(5)(a)3 .f .i ., the Hg removal efficiency 

based on a Hg monitoring system shall be calculated based on the average historic Hg inlet emissions 

determined under 310 CMR 7.29(5)(a)3.d .ii . using the methodology approved by MassDEP in the 

monitoring plan required under 310 CMR 7.29(5)(a)3.g . . 

6. In accordance with 310 CMR 7.29(5)(a)3.e .ii . and 310 CMR 7 .29(5)(a)3 .f .ii ., the Hg emission rate based 

on a Hg monitoring system shall be calculated using the Hg mass emissions methodology approved by 

MassDEP in the monitoring plan required under 310 CMR 7.29(5)(a)3 .g . . 

7. MassDEP has reserved these areas in the regulations for further development . 

8. In accordance with 310 CMR 7.29(5)(a)5 .a ., the COZ emission limit is based on historical actual emissions as 

defined in 310 CMR 7.29(2) . 

9. In accordance with MassDEP's Administrative Consent Order (ACO-NE-03-7001), the date for compliance 

with the COZ requirements found at 310 CMR 7 .29(5)(a)5 .a . shall be October 1, 2006. In accordance with 

310 CMR 7.29(5)(a)5.c ., compliance with 310 CMR 7.29(5)(a)5 .a . may be demonstrated by using emission 

reductions, avoided emissions or sequestered emissions verified under 310 CMR 7 .00 : Appendix B(7) to 

offset emissions above the historical actual emissions, provided MassDEP determines such emission 

reductions, avoided emissions or sequestered emissions are real, additional, verifiable, permanent, and 

enforceable as defined in 310 CMR 7.00 : Appendix B(7) or by using the GHG Expendable Trust under the 

conditions specified in 310 CMR 7.00 : Appendix B(7)(d)5. The COZ emission standard under 310 CMR 

7.29(5)(a)5 .a . shall not apply to the emissions of C02 that occur after December 31, 2008. 

10. In accordance with MassDEP's Administrative Consent Order (ACO-NE-03-7001), the date for compliance 

with the COZ requirements found at 310 CMR 7.29(5)(a)5 .b . shall be October 1, 2008 . In accordance with 

310 CMR 7.29(5)(a)5.d ., compliance with 310 CMR 7 .29(5)(a)5 .b . may be demonstrated by using emission 

reductions, avoided emissions or sequestered emissions verified under 310 CMR 7.00 : Appendix B(7) to 

offset excess emissions, provided MassDEP determines such emission reductions, avoided emissions or 

sequestered emissions are real, additional, verifiable, permanent, and enforceable as defined in 310 CMR 

7.00 : Appendix B(7) or by using the GHG Expendable Trust under the conditions specified in 310 CMR 7 .00 : 

Appendix B(7)(d)5 . Excess emissions are any emissions above the net electrical output of the facility times 

1,800 Ibs/MWh . The COz emission standard under 310 CMR 7.29(5)(a)5 .b . shall not apply to the emissions of 

COZ that occur after December 31, 2008. 

B. COMPLIANCE DEMONSTRATION 
Dominion Energy Salem Harbor, LLC - Salem Harbor Station Draft Amended Emission Control Plan Approval 

Application No. NE-12-003, Transmittal No. X241756 

Page 6 of 13 

The facility owner/operator 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 : 

17, Table 3 * 

EU ~ ' 'MONITORING /TESTING REQUIREMENTS 

EU 1, EU 2, In accordance with 310 CMR 7.29(7)(b)1 ., monitor actual emissions, expressed in tons, for 

EU 3, EU 4 SO2, CO2, and NOx for each of the preceding 12 months. Actual emissions shall be 

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

demonstrating compliance. Actual emissions shall be monitored in accordance with 40 CF 

Part 75 for SOZ, CO2, and NOx. MassDEP shall detail the monitoring methodology for CO 

a nd PM at the time regulations are promulgated b MassDEP for those pollutants. 

In accordance with 310 CMR 7 .29(7)(b)2., monitor actual net electrical output for each o 

he preceding 12 months, expressed in megawatt-hours . Actual net electrical output shall 

be monitored for individual units and as a facility total for all units included in the 

calculation demonstrating compliance. 

Consistent with 310 CMR 7.29(7)(b)3., calculate the resulting output-based emission rates 

or each of the preceding 12 months, and each of the 12 consecutive rolling month time 

periods, expressed in pounds per megawatt-hour, for SOZ, COZ, and NOx. Output-based 

mission rates shall be calculated for individual units and as a facility total for all unit 

included in the calculation demonstrating comp liance . 

EU 1, EU 2, n accordance with 310 CMR 7 .29(5)(a)3 .c .i ., total annual Hg emissions shall be monitored 

EU 3 by conducting emissions testing at least every other calendar quarter from October 1, 200 

until a certified Hg monitoring system is used to demonstrate compliance with the 

standards in 310 CMR 7.29(5)(a)3 .e . or f., and using a certified Hg monitoring system 

hereafter . 

n accordance with 310 CMR 7.29(5)(a)3 .d.iii ., stack tests for Hg 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 MassDEP . Unless a Hg monitoring system that measure 

particulate-bound Hg, either combined with or separate from the measurement of vaporphase Hg, is installed at a unit for purposes of determining compliance with the standard 

in 310 CMR 7.29(5)(a)3.c., e. and f., stack tests for Hg, and certification tests and Relative 

Accuracy Test Audits for Hg monitoring systems, shall determine total and particulatebound H q . Relative accuracy shall be calculated as specified by MassIDEP. 

n 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 a Hg monitoring system to measure Hg stack emissions from, 

each solid fossil fuel- or ash-fired unit at a facility subject to 310 CMR 7 .29. Any person' 

required to install a Hg monitoring system shall meet the requirements of 310 CM 

7 .29 5 a 3. .i . and iii . . 

In accordance with 310 CMR 7.29(5)(a)3 .c .ii ., when ash is re-burned at an affected facility, 

he associated mercury emissions shall be attributable to the affected facility at which the 

sh is re-burned . 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 

Hg : 

(a) the Hg content of the utilized ash shall be measured weekly using a method acceptable t 

MassDEP; 

(b) all of the Hg in the utilized ash shall be assumed to be emitted, unless it can b 

demonstrated with data acceptable to MassDEP that a lesser amount of Hg is emitted ; 

(c) the associated Hg emissions shall be attributed to the affected facility from which the ash 

is shipped to the cement kiln, asphalt batching plant or other high temperature processing 

location . 
Dominion Energy Salem Harbor, LLC - Salem Harbor Station Draft Amended Emission Control Plan Approval 

Application No. NE-12-003, Transmittal No. X241756 

Page 7of13 

Table 3 * 

- _ - 

2 EU # ,- MONITORING /TESTING REQUIREMENTS , 

1, EU 2, In accordance with 310 CMR 7 .29(7)(b)1 . And MassDEP's Amended Administrative Consent 

EU 3 Order (ACO-NE-03-7001-AMEND#1), monitor actual emissions expressed in thousands o 

ounces for Hg, for each of the preceding four calendar quarters beginning October 1, 2005 

and preceding 12 months beginning January 1, 2008 . Actual emissions shall be monitored 

or individual units and 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 H g . 

n accordance with 310 CMR 7 .29(7)(b)3 ., monitor output-based emission rates, expressed 

in pounds per gigawatt-hour, for Hg . Output-based emission rates shall be monitored for 

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

com pliance . 

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

injection for Hg control, monitor the parameters stated in 310 CMR 7 .29(7)(e)1 ., 2., 3., 4 ., 

5 . and 6 . until such time as a H monitoring system is installed at that unit. 

n accordance with 310 CMR 7 .29(7)(f), for units that apply technology other than carbon 

r other sorbent for Hg control, monitor the operating parameters proposed to and 

approved by MassDEP in the ECP application required under 310 CMR 7 .29(6)(a)3. until 

such time as a H monitoring system is installed at that unit. 

. Table 4 * 

EU # RECORD KEEPING REQUIREMENTS, 

EU 1, EU 2, In accordance with 310 CMR 7 .29(7)(b)1 ., maintain a record of actual emissions, 

EU 3, EU 4 xpressed in tons for SO2, CO2, and NOx, for each of the preceding 12 months . Actual 

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

he calculation demonstrating compliance. Actual emissions provided under 310 CMR 7.29 

hall be recorded in accordance with 40 CFR Part 75 for SO2, COZ, and NOx. MassDEP shall 

detail the record keeping methodology for CO and PMZ,5 at the time regulations are 

romul ated b MassDEP for those pollutants . 

In accordance with 310 CMR 7 .29(7)(b)2., maintain a record of actual net electrical output 

or each of the preceding 12 months, expressed in megawatt-hours. Records of actual net 

electrical output shall be maintained for individual units and as a facility total for all unit 

included in the calculation demonstrating compliance . 

In accordance with 310 CMR 7 .29(7)(b)3., maintain a record of the resulting output-based 

mission rates for each of the preceding 12 months, and each of the 12 consecutive rolling' 

month time periods, expressed in pounds per megawatt-hour for S02, C02, and NOx. 

Output-based emission rates shall be recorded for individual emission units and as a facility 

t otal for all units included in the calculation demonstrating comp liance, 

In accordance with 310 CMR 7.29(7)(d), keep all measurements, data, reports and other 

information required by 310 CMR 7.29 on-site for a minimum of five years, or any other 

period consistent with the affected facility's Operatin g Permit . 

EU 1, EU 2, Consistent with the requirements of 310 CMR 7 .29(7), record any occurrences when 

EU 3 mission rates of H are in excess of the emission limits standards contained in Table 3 . 

Consistent with the requirements of 310 CMR 7.29(5)(a)3 .c . and d., maintain a record o 

all H stack testin g performed at the facility. 

Consistent with the requirements of 310 CMR 7 .29(5)(a)3 .c .ii ., 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 Hg, maintain records of the Hg content of the 

utilized ash . 
Dominion Energy Salem Harbor, LLC - Salem Harbor Station Draft Amended Emission Control Plan Approval 

Application No. NE-12-003, Transmittal No. X241756 

Page 8 of 13 

Table 4 ~ 

EiE k ~ RECORD KEEPING REQUIREMENTS 

EU 1, EU 2, n accordance with 310 CMR 7.29(7)(b)1. and MassDEP's Amended Administrative Consent 

EU 3 Order (ACO-NE-03-7001-AMEND#1), maintain a record of actual emissions, expressed in 

thousandths of ounces for Hg, for each of the preceding four calendar quarters beginning 

October 1, 2005 and preceding 12 months beginning January 1, 2008. Actual emission 

hall 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 l .b . c. and d. for Hg . 

n accordance with 310 CMR 7.29(7)(b)3 ., maintain a record of output-based emission 

rates, expressed in pounds per gigawatt-hour for Hg, for each of the preceding 12 month 

and each of the 12 consecutive rolling month time periods. Output-based emission rate 

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

calculation demonstrating compliance . 

In accordance with 310 CMR 7 .29(7)(e), for units that apply carbon or other sorben 

injection for Hg control, maintain records of the parameters stated in 310 CM 

7 .29(7)(e)1 ., 2 ., 3 ., 4., 5 ., and 6. until such time as a Hg monitoring system is installed a 

hat unit. 

n accordance with 310 CMR 7 .29(7)(f), for units that apply technology other than carbon 

r other sorbent for Hg control, maintain records of the operating parameters proposed t 

and approved by MassDEP in the ECP application required under 310 CMR 7.29(6)(a)3 . 

until such time as a H monitoring system is installed at that unit . 

. Table 5 

EI1 # - REPORTING REQUIREMENTS 

EU 1, EU 2, n accordance with 310 CMR 7.29(7)(a), the company representative responsible for 

EU 3, EU 4 compliance shall submit a compliance report to MassDEP by January 30 of each year and 

pursuant to the schedule stated in MassDEP's Amended Administrative Consent Order (ACONE-03-7001-AMEND#1) demonstrating the facility's compliance status with the emission 

standards contained in 310 CMR 7.29(5)(a) and in an approved ECP. The report shall 

demonstrate compliance with any applicable monthly emission rate for each month of the 

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

previous consecutive 12-month periods. The compliance report shall contain all of the 

applicable SO CO and NOx elements listed in 310 CMR 7.29 ( 7)( b) . 

n accordance with 310 CMR 7.29(5)(a)5 .a ., by September 1, 2009, any person who owns, 

leases, operates or controls an affected facility shall demonstrate to MassDEP that emission 

f COZ from the affected facility in calendar years 2006, 2007, and 2008, expressed in tons , 

from Part 72 units located at the affected facility did not exceed historical actual emission 

s defined in 310 CMR 7.29 ( 2) . 

n accordance with 310 CMR 7.29(5)(a)5 .b., by September 1, 2009, any person who owns,' 

leases, operates or controls an affected facility shall demonstrate to MassDEP that the 

average emission rate of COZ from Part 72 units located at the affected facility did no 

exceed an emission rate of 1,800 Ibs/MWh in calendar year 2008 . The average emission 

rate is calculated by dividing the total number of pounds of COZ emitted by the affected 

facility in the calendar year by the net electrical output for the affected facility for the same 

calendar ear. 

EU 1, EU 2, n accordance with 310 CMR 7 .29(5)(a)3 .d .iii ., the results of each stack test for Hg shall be l 

EU 3 reported to MassDEP within 45 days after conductin each stack test. 
Dominion Energy Salem Harbor, LLC - Salem Harbor Station Draft Amended Emission Control Plan Approval 

Application No. NE-12-003, Transmittal No. X241756 

Page 9 of 13 

EU # REPORTING REQUIREMENTS 

EU 1, EU 2, In accordance with 310 CMR 7 .29(5)(a)3 .g.i ., any person required to install a Hg monitoring 

EU 3 system shall submit a monitoring plan for MassDEP approval and shall propose to amend the 

approved ECP in accordance with 310 CMR 7.29(6)(n)1 . to incorporate the Hg monitoring 

approach at least 45 days prior to commencement of initial certification testing . In 

accordance with 310 CMR 7 .29(5)(a)3 .g.ii ., affected facilities must include in their 

monitoring plan a proposed methodology to demonstrate compliance with the emission 

standards in 310 CMR 7.29 5 a 3 .e. and f . . 

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 Hg emissions, monitoring, and optimization test reports, along with 

supporting calculations to MassDEP within 45 days after com pletion of such testin g. 

In accordance with 310 CMR 7.29(5)(a)3 .c .ii .(iv), 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, a proposal shall be submitted for MassDE 

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

whichever is later, detailing the proposed measurement methods to be used to comply with 

310 CMR 7 .29 5 a 3 .c .ii . i and ( ii ) . 

In accordance with 310 CMR 7 .29(7)(a) and pursuant to the schedule stated in MassDEP' 

Amended Administrative Consent Order (ACO-NE-03-7001-AMEND#1), for the Hg standard 

t 310 CMR 7 .29(5)(a)3 .c ., the compliance reports due by January 30 of 2007 and 20081 

hall include the quarterly emissions for each quarter beginning October 1, 2005 . In, 

accordance with 310 CMR 7 .29(7)(a), for the Hg 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 yea 

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

month periods . The compliance report shall contain all of the applicable Hg elements listed 

in 310 CMR 7.29( 7)( b) . 

n accordance with 310 CMR 7 .29(6)(a)3 ., any person who owns, leases, operates, o 

controls an affected facility which installs Hg control equipment that is not already contained 

in an ECP approval under 310 CMR 7 .29 shall submit a Hg ECP amendment application 

under 310 CMR 7 .29(6)(h) at least 90 days before intended installation and may not install 

uch equipment until receiving approval of the revision . 

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 owner/operator of the affected facility shall ensure that it shall be in full 

compliance with the applicable requirements contained in Table 2 in accordance with the 

schedule as specified in the Administrative Consent Order (ACO-NE-03-7001) signed on June 

19, 2003, and as amended on May 23, 2005, and as stated within 310 CMR 7 .29. 

Furthermore, the affected facility owner/operator has proposed additional compliance 

strategies to comply with 310 CMR 7 .29 and to provide the necessary NOx and SOZ emissions 

reductions in order for the Commonwealth to meet its obligation under Section 169A of the 

Clean Air Act to address regional haze, as described in MassDEP's Regional Haze State 

Implementation Plan . 
Dominion Energy Salem Harbor, LLC - Salem Harbor Station Draft Amended Emission Control Plan Approval 

Application No . NE-12-003, Transmittal No . X241756 

Page 10 of 13 

Compliance with 310 CMR 7.29 will continue to be met by utilizing a combination of 

existing and new control strategies identified in Table 1, above. In order to meet the 

regulatory Hg limits which are effective on October 1, 2012, the facility owner/operator has 

proposed using a combination strategy involving fuel mix optimization (for SOZ compliance but 

this action will benefit Hg compliance as well) and installation of a Calcium Bromide injection 

system. In order to meet the 310 CMR 7.29 COZ emission targets, the Dominion Energy 

Salem Harbor, LLC facility owner/operator procured offset credits from both its Dominion 

Energy Brayton Point facility and third party contacts and paid into the Greenhouse Gas 

Expendable Trust. In addition, EU 4 NOx compliance options will be burner 

tuning/maintenance, which may include new atomizer nozzles and flame stabilizers, water 

injection technology (into fuel, flame zone, or furnace), or staged combustion and SNCR. 

These technologies or measures will be used singly or in combination as necessary to achieve 

compliance. 

With respect to the obligations necessary to address regional haze, the facility 

owner/operator shall utilize a combination of NOx and/or SOZ emission caps on EU 1 and EU 2 

and shall permanently shutdown EU 3 and EU 4 by June 1, 2014 (For the purposes of this ECP 

Approval "shutdown" means ceasing to operate these units as coal fired units. It does not 

preclude repowering of the units after receipt of the appropriate Approvals and/or permits from 

MassDEP (and other agencies as applicable) .) . Furthermore, the facility owner/operator shall 

not use S02 Early Reduction Credits or Federal Acid Rain Allowances for SOZ compliance 

effective June 1, 2014 . The emission unit specific requirements are contained in Section 4 of 

this ECP Approval . 

4. SPECIAL CONDITIONS FOR ECP 

1 . In accordance with 310 CMR 7.29(7)(c), MassDEP may verify compliance by 

whatever means necessary, including but not limited to : inspection of a unit's 

operating records; requiring the person who owns, leases, operates or controls an 

affected facility to submit information on actual electrical output of company 

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

Operator (ISO) ; testing emission monitoring devices; and, requiring the person who 

owns, leases, operates or controls an affected facility to conduct emissions testing 

under the supervision of MassDEP. 

2 . In accordance with 310 CMR 7 .29(4)(c), in case of imminent threat to the reliability of 

New England's electricity system, MassDEP may promulgate an emergency regulation 

as per M.G.L. c. 30A, §§ 2 and 3, to mitigate the emergency situation . 

3 . In accordance with 310 CMR 7.29(4)(b), any person subject to 310 CMR 7 .29 shall 

comply with all other applicable regulations . 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 MassDEP. 

Regardless of MassDEP's determination, any person subject to 310 CMR 7.29 shall 

comply with all applicable federal requirements . 

4. The facility owner/operator shall maintain continuous compliance at all times with 

the terms of the Administrative Consent Order (ACO-NE-03-7001) signed on June 19, 

2003, including the amended Consent Order (ACO-NE-03-7001-AMEND#1) dated 

May 23, 2005, and this ECP Approval, consistent with the applicable emission rates 

in 310 CMR 7.29 . 

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

then the facility owner/operator shall immediately take appropriate steps to abate 
Dominion Energy Salem Harbor, LLC - Salem Harbor Station Draft Amended Emission Control Plan Approval 

Application No . NE-12-003, Transmittal No. X241756 

Page 11 of 13 

said condition even though the facility is otherwise in compliance with the 

Administrative Consent Order (ACO-NE-03-7001) and its amendment (ACO-NE-03-

7001-AMEND#1), this ECP Approval, and 310 CMR 7 .29. 

6 . Effective immediately, the facility owner/operator shall ensure that NOx emissions 

from EU 1 shall not exceed 276 tons per rolling 12 month period the calculation of 

which commences on 1/1/2012 and the first full 12 month demonstration shall be 

1/1/2013 . 

7. Effective immediately, the facility owner/operator shall ensure that NOx emissions 

from EU 2 shall not exceed 50 tons per rolling 12 month period the calculation of 

which commences on 1/1/2012 and the first full 12 month demonstration shall be 

1/1/2013 . 

8 . Effective immediately, the facility owner/operator shall ensure that SOZ emissions 

from EU 2 shall not exceed 300 tons per rolling 12 month period the calculation of 

which commences on 1/1/2012 and the first full 12 month demonstration shall be 

1/1/2013 . 

9. The facility owner/operator shall maintain adequate records onsite to document 

compliance with the requirements contained in Special Conditions 6 ., 7. and 8. 

above; and shall make said records available to MassDEP or USEPA personnel upon 

request . 

10 . Effective June 1, 2014, the facility owner/operator shall ensure that EU 3 and EU 4 

shall cease operation, and shall be permanently shutdown, and rendered inoperable . 

11 . Effective June 1, 2014, the facility owner/operator is prohibited from utilizing SOZ 

Early Reduction Credits or Federal Acid Rain Allowances for compliance with the S02 

requirements of 310 CMR 7.29. 

5. GENERAL CONDITIONS FOR ECP 

1 . This ECP Approval may be suspended, modified, or revoked by MassDEP, if at any 

time the facility is violating any applicable Regulation(s) or condition(s) of this ECP 

Approval letter . 

2 . This ECP Approval letter consists of the facility owner/operator's Application 

materials, the Administrative Consent Order (ACO-NE-03-7001), and the Amended 

Consent Order (ACO-NE-03-7001-AMEND#1) . If conflicting information is found 

between these documents, then the requirements of this ECP Approval letter shall 

take precedence over the documentation in the Application materials . 

3. This ECP Approval does not negate the responsibility of the facility owner/operator to 

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

the future . Nor does this ECP Approval imply compliance with any other applicable 

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

4. 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 MassDEP in the affected facility owner/operator's Operating 

Permit . 

5 . Failure to comply with any of the above conditions will constitute a violation of the 
Dominion Energy Salem Harbor, LLC - Salem Harbor Station Draft Amended Emission Control Plan Approval 

Application No. NE-12-003, Transmittal No. X241756 

Page 12 of 13 

"Regulations", and can result in the revocation of the ECP Approval granted herein . 

6 . MODIFICATION TO THE ECP 

In accordance with 310 CMR 7 .29(h)1 ., amendments may be proposed to this 

approved Emission Control Plan. If MassDEP proposes to approve such amendments, or 

approve such amendments with conditions, then MassDEP will publish a notice of public 

comment on an Amended ECP Approval, in accordance with M .G.L. c . 30A . MassDEP will 

allow a 30-day public comment period following publication of the notice, and may hold a 

public hearing . All terms and conditions of the Amended ECP Approval shall remain in effect 

until otherwise modified by MassDEP in a subsequent ECP Approval . 

7 . MASSACHUSETTS ENVIRONMENTAL POLICY ACT 

MassDEP has determined that the filing of an Environmental Notification Form (ENF) 

with the Secretary of Energy & Environmental Affairs, for air quality control purposes, was not 

required prior to this action by MassDEP. Notwithstanding this determination, the 

Massachusetts Environmental Policy Act (MEPA) and Regulation 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. 

S. APPEAL OF APPROVAL 

This ECP Approval is an action of MassDEP. 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 ECP 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 ECP 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. 

MassDEP 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. 
Dominion Energy Salem Harbor, LLC - Salem Harbor Station Draft Amended Emission Control Plan Approval 

Application No. NE-12-003, Transmittal No. X241756 

Page 13 of 13 

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

of this ECP Approval, please contact Edward J . Braczyk at (978) 694-3289 or Cosmo Buttaro at 

(978) 694-3281 . 

Sincerely, 

Edward J . Braczyk 

Environmental Engineer 

Cosmo Buttaro 

Environmental Engineer 

cc : 

James E . Belsky 

Regional Permit Chief 

Bureau of Waste Prevention 

City Hall, 93 Washington Street, Salem, MA 01970 

Fire Headquarters, 48 Lafayette Street, Salem, MA 01970 

Board of Health, 120 Washington Street, 4th Floor, Salem, MA 01970 

Metropolitan Area Planning Council, 60 Temple Place, Boston, MA 02111 

United States Environmental Protection Agency (USEPA) - New England Regional 

Office, 5 Post Office Square, Suite 100, Mail Code OEP05-2, Boston, Massachusetts 

02109-3912, Attention : Manager - Air Permits Program 

MassDEP/Boston (E-Copies) : Yi Tian, Marc Wolman, Glenn Keith 

MassDEP/NERO: Marc Altobelli (E-Copy & Hard Copy), Mary Persky (Hard Copy), 

Cosmo Buttaro