Technical Support Document (TSD) for the Redesignation Request and Maintenance Plan for the West Virginia Portion o f the Wheeling , WV

- OH

1997 PM 2.5 Nonattainment Area

Submitted March 2012 by the West Virginia Department of Environmental Prote ction TSD Prepared May 2012 by Jessica L . Fry Office of Air Monitoring and Anal ys is, 3AP40 U.S. Environmental Protection Agency , Region 3

1650 Arch Street Philadelphia, Pennsylvania 19103

/s/

____________________________________________ Reviewed b y Wa lter Wilkie, Associate Director Office of Air Monitoring and Anal ys is (3AP40)

May 18, 2012

_________________ Date Signed**I. Introduction** 

The purpose of this document is to provide a technical summary of the Office if Air Monitoring and Anal ys is (OAMA) review of the emissions inventories submitted with the Redesignation Request and Maintenance Plan for the West Virginia Portion of the Wheeling, WV

- OH 1997 PM 2.5 Nonattainment Area by the West Virginia Department of the Environment (WVDEP). This re view 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 ye ar the area was designated as a nonattainment area and the ye ar the area came into attainment. Ina maintenance plan, the emissions inventories are use to reflect the emissions during the time 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 Walter Wilkie , Associate Director, Office of Air Monitoring and Analy sis, at 215

- 814

- 2150 or via email at wilkie.walter@epa.gov

. **II. E**  **missions Inventories for Redesignation Request (Base Year Inventory)** In a redesignation 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 s hould estimate the percent reduction (from the ye ar that was used to determine the design value for designation and classification) achieved from federal and state control measures; this is usually termed as the “base year” inventory

. The base year invento ry contains primary

PM 2.5 emissions (including condensibles), SO 2 and NO x . WVDEP did not include VOC and NH 3 emissions having determined them to be in significant

. This section will discuss the 2005 Nonattainment Year Inventory that was used in the Wheeli ng Redesignation Request and Maintenance Plan submitted by WVDEP. WVDEP compiled emissions inventories for the West Virginia portion of the Wheeling Nonattainment Area. The West Virginia portion of the nonattainment area consists of Marshall County and O hio County. The 200 5 point source inventory contained emissions for electric generating units (EGUs) and Non

- EGU sources in Marshall County and Ohio County . EPA guidance for emissions inventory

development provides that actual emissions should be used for purposes of the base ye ar inventory . WVDEP used WV Department of Air Quality’s (DAQ) 200 5 annual emissions inventory

submitted to EPA’s National Emissions Inventory (NEI) database and EPA’s Clean Air Markets Division (CAMD) database to compile their inventory . Much of the work in developing the inventory involved realigning the EGUs and Non

- EGUs from the 200 5 dataset submitted to the NEI with the CAMD dataset. For the 200 5 Nonpoint emissions, WVDEP used 200 5 NEI v 2 data developed by the EPA.For 200 5 Nonroad mobile sources, WVDEP generated the emissions using EPA’s

NONROAD model. Since marine, air and rail/locomotive (MAR) emissions are not part of the NONROAD model, they

were calculated separately outside of the NONROAD model. The 200 5 Onroad Mo bile source inventory was developed using the most current version of EPA’s highway

mobile source emissions model MOVES2010a. The Ohio Department of Transportation (ODOT) and the Wood

- Washington

- Wirt Interstate Planning Commission (WWW) performed the anal ys is in coordination with the Ohio Environmental Protection Agency and WVDEP, with additional data provided b y Ohio EPA, West Virginia Department of Transportation (WVDOT), and WVDEP. OAMA staff reviewed the files and the emission results provided by WV DEP and found them to be acceptable.
**I I**  **I. Emissions Inventories for Maintenance Plan**  **2008 Attainment Year Inventory and Maintenance Plan Base Year Inventory** The inventory

used for the year of attainment is called the Attainment Year Inventory and also is referred to as the Maintenance Plan Base Year Inventory . This inventory is used as the basis for the projected inventories that are used to show the area will remain in attainment. The base ye ar inventory

contains primary

PM 2.5 emissions (including co ndensibles), SO 2 and NO x . WVDEP did not include VOC and NH 3 emissions having determined them to be in significant

. This section will discuss the 2008 Attainment Year Inventory that was used in the Wheeling Redesignation Request and Maintenance Plan submitt ed by WVDEP. The 2008 point source inventory contained emissions for EGUs and Non

- EGU sources in Marshall County

and Ohio County

. EPA guidance for emissions inventory development provides that actual emissions should be used for purposes of the bas e ye ar inventory . WVDEP used WVDAQ 2008 annual emissions inventory submitted to EPA’s N EI database and EPA’s CAMD database to compile their inventory

. Much of the work in developing the inventory involved realigning the EGUs and Non

- EGUs from the 2008 dataset submitted to the NEI with the CAMD dataset. For the 2008 Nonpoint emissions, WVDEP used 2008 NEI v1.5 data developed by the EPA. Commercial marine vessels and l ocomotive emissions contained in the 2008 NEI v1.5 were moved to the nonroad data category

. Fo r 2008 Nonroad mobile sources, WVDEP generated the emissions using EPA’s NONROAD model. Since marine, M AR emissions are not part of the NONROAD model, they were calculated separately outside of the NONROAD model. The 2008 Onroad Mobile source inventory was developed using the most current version of EPA’s highway

mobile source emissions model MOVES2010 a
. The ODOT and the WWW performed the anal ys is in coordination with the Ohio Environmental Protection Agency and WVDEP , with additional data provided b y Ohio EPA, WVDOT , and WVDEP.OAMA staff reviewed the files and the emission results provided by WVDEP and found

them to be acceptable. **2015 and 2022 Projection Emission Inventories** Projection inventories are used to show that the area will remain in attainment. WVDEP used 2015 and 2022 emission projections for the interim and maintenance plan end y ear, respectivel y. WVDEP used EPA’s Integrated Planning Model (IPM) projections to support the Cross State Air Pollution Rule (CSAPR). IP M projections of 2014 (released as 2014 , the projected future ye ar data provided with this platform is generall y representative of several ye ars around 2012 and 2014 such as 2015 1 ) , 2020 and 2030 were used. WVDEP compiled Point source EGUs from EPA’s CSAPR inventories of 2015 and 2022 was interpolated between 2020 and 2030 inventories

. For Non

- EGU emissions, inventories for 2015 and 2022 were grown from the 2008 inventory using Workforce West Virginia economic forecasts. Nonpoint source emissions for 2015 and 2022 w ere based on the 2008 inventory using Workforce West V ir ginia economic forecasts. The Workforce WV projections were selected because their projections were based more on local data, provided more coverage of various categories and a wider range of years, based on 2008. WVDEP compiled and associated Workforce WV’s growth factors with North American Industrial Classification Sy stem (NAICS) codes with WVDEP’s Source Classification Codes (SCCs). Calculations were made and final estimates reflected both positi ve and negative growth. Nonroad source emissions for 2015 and 2022 were developed using monthly NOROAD model runs and summing the monthly data to obtain annual data. MAR emissions for 2015 and 2022 were based on the 2008 inventory using Workforce WV econ omic forecasts. The same methodology

was used to project MAR emissions as was discussed for Nonpoint sources. Onroad mobile projection emissions for 2015 and 2022 were calculated from MOVES2010a produced emission factors as performed by the Ohio Departme nt of Transportation. OAMA staff reviewed the methodologies provided by WVDEP and found them to be acceptable

.

1 Posted June 29, 2011, 2014 Emissions Data Files, f tp://ftp.epa.gov/EmisInventory/2005v4_2/2014emis/readme_2005v4_2_CAP_BAFM_HAPs_inventories_2 014_inp uts.txt