Technical Support Document (TSD) for the Redesignation Request and Maintenance Plan

For the West Virginia Portion of the Martinsburg

- Hagerstown

, WV

- MD

1997 PM 2.5 Nonattainment Area

Submitted August 2013 by the West Virginia Department of Environmental Protection

TSD Prepared December 2013 by

Jessica L. Fry Office of Air Monitoring and Analysis, 3AP40 U.S. Environmental Protection Agency, Region 3

1650 Arch Street Philadelphia, Pennsylvania 19103

/s/

____________________________________________ Reviewed by Alice H. Chow

, Associate Director Office of Air Monitoring and Analysis (3AP40)

January 14, 2014

_________________ Date SignedI. Introduction

The purpose of this document is to provide a technical summary of the Office o f Air Monitoring and Analysis (OAMA) review of the emissions inventories submitted with the Redesignation Request and Maintenance Plan for the Martinsburg

- Hagerstown, WV

- MD 1997 PM 2.5 Nonattainment Area by the West Virginia Department of Environment al Protection (WVDEP). This review does not determine the approvability of the redesignatio n request or maintenance plan. Emissions inventories in a redesignation request are used to show permanent and enforceable emission reductions between the year the area was designated as a nonattainment area and the year the area came into attainment. In a maintenance plan, the emissions inventories

are use d to reflect the emissions during the t ime the area came into attainment and are then projected to show that the area will remain in attainment. Any questions pertaining to this technical summary should be directed to Alice H. Chow

, Associate Director, Office of Air Monitoring and Analysis, at 215

- 814

- 21 44 or via email at chow.alice@epa.gov

.

II. Emissions Inventories for Redesignation Request

2005 Nona ttainment Year Inventory

In a redesignat ion request, emissions inventories are used to support the States claim that the area has permanent and enforceable emissions reductions. In order to do this, the state should estimate the percent reduction (from the year that was used to determine the de sign value for designation and classification) achieved from federal and state control measures; this is usually termed as the nonattainment year inventory. For the purpose of this plan the year 2005

was used the nonattainment year inventory. The 2005 nona ttainment year inventory contains primary PM 2.5 emissions (including condensibles), SO 2, NO
x , VOC, and NH 3 . This section will discuss the 2005 nonattainment year i nventory that was used in the Martinsburg

- Hagerstown,

WV

- MD Redesignation Request and Maintenance Plan submitted by WVDEP.

WVDEP compiled emissions inventories for the West Virginia portion of the

nonattainment area which consists of Berkeley County, WV

.

The 200 5 point source inventory contained emissions for Non

- electric generating uni ts (EGUs) sources in Berkeley County

. There are no EGU sources located in Berkeley County. EPA guidance for emissions inventory development provides that actual emissions should be used for purposes of the base year inventory. WVDEP used WV Department of Air Quality’s (DAQ) 2005 annual emissions inventory submitted to EPA’s National Emissio ns Inventory (NEI) database to compile their inventory.

For the 2005 n onpoint emissions, WVDEP used 2005 NEI v2 data developed by the

EPA.

For 2005 n onroad mobile sources, WVDEP generated the emissions using EPA’s

NONROAD model

. NH 3 emissions are not calculated in the NONROAD model and were pulledfrom the 2005 NEI v2. Since marine, air and rail/locomotive (MAR) emissions are not part of

the NONROAD model, they we re calculated separately outside of the NONROAD model.

The 2005 o nroad m obile source inventory was developed using EPA’s highway mobile

source emissions model MOVES2010a. The analysis was performed by Michael Baker Jr. Inc.,

under contract to the WV De partment of Transportation (WVDOT) and the responsible Metropolitan Organization (MPO), the Regional Intergovernmental Council (RIC). In order to develop local data inputs t he latest planning assumptions and regional planning t ools were used.

Data used to develop inputs was obtained from WVDOT, DEP, RIC and other national/local

sources.

OAMA staff reviewed the files and the emission results provided by WVDEP and found them to be acceptable.

I I I. Emissions Inventories for Maintenance Plan

200 7 Attainment Year Inventory and Maintenance Plan Base Year Inventory

Under section 172(c)(3) states are required to submit a comprehensive, accurate, current accounting of actual emissions from all sources (point, nonpoint, nonroad, and onroad) in the

nona ttainment area. Th is inventory contains primary PM 2.5 emissions (including condensibles),

SO 2 , NO
x , VOC, and NH 3. In a Maintenance Plan, states are required to submit an inventory used for the ye ar of attainment, which is called the attainment year i nven tory and can also be referred to as the maintenance plan base year i nventory. This inventory is used as the basis for the projected inventories that are used to show the area will remain in attainment. The base year inventory submitted by WVDEP contains primary PM 2.5 emissions (including condensibles),

SO 2 , NO
x , VOC, and NH 3. This section will discuss the 2007 emissions i nventory that was used

in the Martinsburg

- Hagerstown, WV

- MD Redesignation Request and Maintenance Plan in order to fulfill the 172(c)(3 ) and attainment year emissions inventory requirements.

The 200 7 point source inventory contained emissions for Non

- EGU sources in Berkeley County. There are no EGU sources located in Berkeley County. EPA guidance for emissions inventory development pro vides that actual emissions should be used for purposes of the base year inventory. WVDEP used a 2007 point source inventory that was developed by contractors working for the Southeastern Modeling, Analysis, and Planning (SEMAP) project. WV Department of Air Quality (DAQ) provided the contractor with 2007 point source data, which was used in the development of the inventory.

For the 2007 n onpoint emissions, WVDEP used the 2007 SEMAP Area (Nonpoint) Source inventory.

For 2007 n onroad mobile sources, WVDE P generated the emissions using EPA’s

NONROAD model

. NH 3 emissions are not calculated in the NONROAD model and were pulled from the 2007 SEMAP inventory. Since MAR emissions are not part of the NONROAD model, they were calculated separately outside of the NONROAD model.The 200 7 onroad m obile source inventory was developed using EPA’s highway mobile

source emissions model MOVES2010a. The analysis was perform ed by Michael Baker Jr. Inc., under contract to the WVDOT and the responsible RIC. In order to develop local data inputs the latest planning assumptions and regional planning tools were used. Data used to develop inputs was obtained from WVDOT, DEP, RIC and other national/local sources.

OAMA staff reviewed the files and the emission results provided by WVDEP and found

them to be acceptable.

201 7 and 2025 Projection Emission Inventories

Projection inventories are used to show that the area will remain in attainment. WVDEP

used 201 7 and 2025 emission projections for the interim and maintenance plan end year, respectively.

Non

- EGU p oint source emissions, inventories for 2017 and 2025 w ere grown from the SEMAP inventory using growth and control factors prepared by SEMAP’s contractor. There are no EGU point sources in Berkeley County.

Nonpoint source emissions for 2017 and 2025 were prepared by WVDAQ by applying growth and control factors developed by SEMAP’s contractor.

Nonroad source emissions for 2017 and 2025 were developed using monthly NO N ROAD

model runs and summarizations of monthly data to obtain annual data values

. WVDAQ created growth factors for NH 3 emissions by using SEMAP’s 2007 and 2018 NONROAD inventories to develop a growth factor and applied these to the 2007 NONROAD emission data. MAR

emissions for 2017 and 2025 were prepared by WVDAQ by applying growth and control factors developed by SEMAP’s contractor.

Onroa d mobile projection emissions for 2017 and 2025 were calculated from MOVES2010a produced emission factors as performed by Michael Baker Jr. Inc., under contract

to the WVDOT and RIC.

OAMA staff reviewed the methodologies provided by WVDEP and found them to be acceptable

.