## MARYLAND DEPARTMENT OF THE ENVIRONMENT 1800 Washington Boulevard • Baltimore MD 21230
410

- 537

- 3000 • 1

- 800

- 633

- 6101 • www.mde.state.md.us

Martin O'Malley Governor

Anthony G. Brown Lieutenant Governor Robert M. Summers, Ph. D. Secretary



# Balt imore Nonattainment Area PM 2.5 

# Redesignation Request

SIP Number: 13

- 10

May 28, 2013

Prepared for:

U.S. Environmental Protection Agency

Prepared by:

Maryland Department of the Environment

## This Page Left Intentionally BlankBaltimore, MD Redesignation Request 

### Table of Contents

1. Introduction

................................ ................................ ................................ .............................. 1

2. Background

................................ ................................ ................................ .............................. 1

2.1 Health Effects

................................ ................................ ................................ ..................... 1

2.2 Baltimore, MD Nonattainment Designation

................................ ................................ ...... 2

3. USEPA Requirements for Redesignation

................................ ................................ ................ 4

3.1 Attainment of the Standard

................................ ................................ ................................ 4

3.1.1 PM 2 .5 Monitoring Data Analysis Require m ents

................................ ....................... 5

3.1.2 Baltimore Ar ea PM 2 .5 Ambient Air Monitoring Network

................................ ........ 5

3.1.3 Baltimore Area PM 2 .5 Annual Concentration Data

................................ .................. 6

3.1.4 Missing Data under the 1997 Annual P M 2 .5 Standard

................................ .............. 9

3.1.5 Quality As s urance

................................ ................................ ................................ ..... 10

3.1.6 Continued Monitoring Com m i t m ent

................................ ................................ ......... 10

3.1.7 Clean Data Deter m ination

................................ ................................ ......................... 10

3.2 Implementation Plan Approval

................................ ................................ ........................ 11

3.3 Permanent and Enforceable Emission Reductions

................................ .......................... 11

3.3.1 On

- Road Emission Reduction Requirements

................................ ........................... 11

3.4 Maintenance Plan

................................ ................................ ................................ ............. 13

3.5 Section 110 and Part D Requirements

................................ ................................ ............. 14

3.5.1 Demonstration of Compliance

................................ ................................ .................. 14



### List of Figures
Figure 2

- 1: Baltimore, MD PM 2.5 NAAQS Nonatttainment Area

................................ .................. 3 Figure 3

- 1: Baltimore, MD Nonattainment Area PM 2.5 Monitoring Sites

................................ ..... 6 Figure 3

- 2: Baltimore Area Annual PM 2.5 Data Trends

................................ ................................ 9



### List of Tables

Table 2

- 1: Baltimore, MD Nonattai nment Area with FIPS Codes

................................ ................ 2 Table 3

- 1: Baltimore, MD Annual PM 2.5 Design Values

................................ .............................. 8 Table 3

- 2: On

- Road Emission Reductions for the Baltimore Area, 2002

- 2007

.......................... 1 3 Table 3

- 3: Infrastructure Submittals for Maryland

................................ ................................ ...... 15Baltimore, MD PM2.5 Redesignation R equest 

## This Page Left Intentionally BlankBaltimore, MD PM2.5 Redesignation Request Page 1 

## 1. Introduction

The State of M aryland request s that the United States Environmental Protection Agency (USEPA) redesignate the Baltimore, MD 1997 fine particulate ( PM 2.5 ) nonattainment area to attainment for this standard pursuant to the provisions under § 107 of the federal Clean Air A ct (CAA). Since the designations for the National Ambient Air Quality Standard s (NAAQS) for this pollutant were published (Federal Register, Vol. 70, No. 3, 1/5/2005), the area’s PM 2.5 air quality has improved due to permanent and enforceable emission red uctions. Air quality in the area is significantly better than required by this standard. Due to the improvement in PM 2.5 air quality

, the USEPA finalized a clean data determination for the Baltimore area on May 22, 2012 (Federal Register, Vol. 77 , No. 99

, 5/22/2012 ). The State of Maryland is also requesting that USEPA concurrently approve, as a revision to the state implementation plan (SIP) , the related § 175A maintenance plan. This plan ensures that good PM 2.5 air quality will be maintained through 2 025.


## 2. Background

2.1 Health Effects

PM 2.5 , also known as f ine particulate matter or fine particles, is defined as any airborne particle of solid or liquid matter that is less than or equal to 2.5 micrometers in diameter. PM 2.5 is not a single pollutant but a su m of all pollutants that have diameters less than 2.5 micrometers, which is 1/30 th the diameter of a human hair.

Sources of PM 2.5 and PM 2.5 precursors include, most significantly, coal

- fired power plants and other combustion sources, fires, emissions fro m motor vehicles, windblown dust, and natural emissions from trees and the oceans. These sources can be divided up into two types of sources, primary and secondary. Primary sources directly emit fine particulate matter into the atmosphere without any chemi cal change occurring to the pollutant. Secondary sources are sources from which precursor chemical species are released into the atmosphere and then react with other chemical species in the atmosphere to create fine particulate matter. Some species which c omprise fine particulate matter are sulfates, ammonium nitrate, soot, sea salt, organic carbon, and metals (crustal metals, transitional metals, and potassium).

Exposure to high levels of PM 2.5 adversely affects human health. The main impacts of PM 2.5 on human health are on the respiratory system and the cardiovascular system. Children, the elderly, and individuals with pre

- existing pulmonary or cardiac disease are the most susceptible to PM 2.5 pollution. Complications that can arise from exposure to ele vated levels of PM 2.5 include decreased lung function, chronic bronchitis, respiratory symptoms such as asthma attacks and difficulty breathing, nonfatal heart attacks, irregular heartbeat, and premature death in individuals with pulmonary or cardiac disea se

.Baltimore, MD PM2.5 Redesignation Request Page 2 

### 2.2 Baltimore, MD Nonattainment Designation

The CAA requires each state with areas failing to meet the 1997 PM 2.5 NAAQS to develop SIPs to expeditiously attain and maintain the standards. The USEPA revised the NAAQS for particulate matter in July 1997 (Fe deral Register, Vol. 62, No. 138, 7/18/1997). The USEPA issued a new primary ( health

- based ) PM 2.5 standard and retained the primary PM 10 standard

. The standards inclu de an annual standard set at 15.0 micrograms per cubic meter ( μg/m 3 ) , based on the 3

- year average of annual mean PM 2.5 concentrations, and a 24

- hour standard of 65 μg/m 3

, based on the 3

- year average of the 98 th percentile of 24

- hour concentrations.

On December 17, 2004, the USEPA administrator signed the final rule regarding the initial PM 2.5 nonattainment areas designations for the PM 2.5 standards across the country. The final rule became effective on April 5, 2005 ( Federal Register, Vol. 70, No. 3, 1/5/2005). The Baltimore, MD area was originally designated nonat tainment for the 1997 PM 2.5 NAAQS based on air quality data showing that the area did not meet the 15.0 μg/m 3 annual standard. Unlike Subpart 2 of the CAA that defined five ozone nonattainment classifications for the areas that exceed the NAAQS based on the severity of the ozone levels, PM 2.5 nonattainment designations are simply labeled “nonattainment”. T he CAA required states with PM 2.5 nonattainment areas to submit an attainment plan within three years of the effective date of the designations (April 5, 2008) detailing how the PM 2.5 standards will be attained by April 5, 2010. The atta inment plans were submitted in a timely manner.

The area designated nonattainment for the 1997 PM 2.5 NAAQS is defined in Table 2

- 1 and depicted in Figure 2

- 1.

Table 2

- 1 : Baltimore, MD Nonattainment Area with FIPS Codes

Baltimore, MD PM 2.5 Nonattainment Jurisdictions Anne Arundel County (24

- 003) Baltimore County (24

- 005) Carroll County (24

- 0 13 ) Harford County (24

- 0 25 ) Howard County (24

- 0 27 ) Baltimore City (24

- 510)Baltimore, MD PM2.5 Red esignation Request Page 3 

### F IGURE 

### 2

- 1: B ALTIMORE 

### , MD PM 2.5 

### NAAQS N ONATTTAINMENT 

### A REA ( PURPLE AREA ON MAP )

Baltimore, MD Hagerstown

- Martinsburg, MD

- WV Washington, DC

- MD

- VA Fine Particulate Matter (PM 2.5 ) Non

- Attainment Areas in Maryland and Surrounding Jurisdictions

FRM PM

- Fine Monitors in Maryland Baltimore, MD Hagerstown

- Martinsburg, MD

- WV Washington, DC

- MD

- VA Fine Particulate Matter (PM 2.5 ) Non

- Attainment Areas in Maryland and Surrounding Jurisdictions

FRM PM

- Fine Monitors in MarylandBaltimore, MD PM2.5 Redesignation Request` Page 4 Page 4 

## 3. USEPA Requirements for Redesignation

The CAA provides a process whereby a state may petition USEPA to redesignate a nonattainment area as attainment. The CAA lists five obligations that the USEPA m u st m eet during the redesignation process. Section 10 7 (d)(3)(E) st a t e s :

The Ad m inistrator may not pro m ulgate a re d esignation of a n o nattainment

area (or port i on thereof) to attai n m ent unless

–
(i) the Ad m i n istrator determines tha t the area h a s at t ained the national

a m bient air quality standard; (ii) the Ad m i nistrator has ful l y app r oved the applicable i m plementation plan for t h e area under section 110( k ); (iii) the Ad m i nistrator determines that the i m prove m e nt in air quality is due to per m ane nt and enforceable r eductions in e missions res u lting from i mple m entation of the applicable i m ple m entation plan a n d applicable Federal air p o llutant control r e gulations and other
per m a n ent and enforceable reductions; (iv) the Ad m i nistrator has ful l y app r oved a m a intenan c e plan for the

area a s m e et i ng the require m ents of section 1 7 5A; and (v) the State containing such area has met all requirements applicable
to the area under section 110 and part D.

This document addresses each of these requirements and provides addi tional information to support continued compliance with the 1997 PM 2.5 NAAQS. USEPA has published detailed guidance in a memorandum from John Calcagni, Director, Air Quality Management Division, entitled Procedures for Processing Requests to Redesignate A reas to Attainment (redesignation guidance), issued September 4, 1992, to Regional Air Directors. 2 40 CFR Part 51, Subpart Z, entitled Provisions for Implementation of PM 2.5 National Ambient Air Quality Standards (implementation rule) provides additional information. The State of Maryland ha s based this redesignation request and its associated maintenance plan on the redesignation guidance and the implementation rule, supplemented with additional guidance received from staff of USEPA Region III.



### 3.1 Attainmen t of the Standard

The Baltimore, MD federal reference monitors have demonstrated compliance with the 65 μg/m 3 daily standard since the inception of the PM 2.5 monitoring program and thus the focus of the attainment demonstration will be on the annual standard.

A state requesting redesignation m ust show that the area is attaining the a pplica b le N AAQS. The 1997 annual P M 2 .5 NAAQS is met when the annual design valu e is less than or equal to the 15.0 micrograms per cubic meter (μg/m 3 ). This section presents infor m ation that de m onstrates the Baltimore, MD nonattainment area has attained the NAAQS for P M 2

. 5
. This de m onstration is based on three years of quality assured m onitoring data as specified

2 See http://www.epa.gov/ttn/oarpg/t5/memoranda/redesignmem090492.pdf , accessed April 27, 2012.Baltimore, MD PM2.5 Redesignation Request` Page 5 Page 5 in 40 CFR Part 58

.

3.1.1 PM 2 .5 Monitoring Data Analysis Require m ents

In 1992 the USEPA published “Procedures for Processing Request to Redesignate Areas to Attain m ent”. This is a guidance doc u m ent that details require m ents nonattain m ent areas (NAA) must m eet to be redesignated to attai n m ent.

The following are the require m ents regarding a m bient air m onitoring data and attainment:

• Monitoring data m ust show that the non

- attain m ent area is attaining the NAAQS

• The data sh o uld be collected and quality ass u red in accorda n ce with 40 CFR 58 and recor d ed in the USEPA Air Quality Sys t em (AQS) database in order for it to be available to t he public for review.

The m onitoring data analysis below illu st rates how each of the require m ents has been addressed.

3.1.2 Baltimore Area PM 2 .5 Ambient Air Monitoring Network

There are c u rrently thirteen (13) s i tes that m onitor P M 2 .5 in the Baltimore Region. The P M 2 .5 m onitoring sites are shown in Figure 3

- 1. MDE uses both manual gravimetric and automated monitors to measure PM 2.5 mass concentrations in the Maryland network. A filter attached to the inlets of these monitors excludes particles having diameter s greater than 2.5 microns. The PM 2.5 Beta Attenuation Monitor (BAM) automatically measures and records dust concentrations with built

- in data logging. It uses the principal of beta ray attenuation to provide a simple determination of mass concentration. A n external pump pulls a measured amount of air through a filter tape for a one

- hour period. The filter tape, impregnated with ambient dust, is placed between the source and the detector thereby causing the attenuation of the measured beta

particle signal. The degree of attenuation of the beta

- particle signal is used to determine the mass concentration of particulate matter on the filter tape and hence the hourly volumetric concentration of particulate matter in the ambient air. MDE uses MetOne SuperSAAS sam plers and IMPROVE samplers for the collection of samples for the chemical speciation of PM 2.5 . The samplers collect 3 to 4 filter samples simultaneously every third or sixth day for a period of 24 hours. These samples are then sent to an USEPA contract lab oratory for chemical analyses. There are over 50 species consisting of ions, metals and carbon species quantified by the analyses.Baltimore, MD PM2.5 Redesignation Request` Page 6 Page 6 

### F IGURE 

### 3

- 1 : B ALTIMORE 

### , MD N ONATTAINMENT 

### A REA 

### P M 2.5 

### M ONITORING 

### S ITES

3.1.3 Ba ltimore Area PM 2 .5 Annual Concentration Data

To determine whether or not a site is in compliance with the 1997 annual PM 2.5 NAAQS, the three

- year average of annual average PM 2.5 concentrations must be calculated and compared to the standard of 15.0 μ g/m 3

. For an area to be in compliance with the 1997 PM 2.5 NAAQS, all sites within that area must be in compliance with the annual NAAQS. Even if there is only one station that is not in compliance, that one station makes the entire area a nonattainment area f or that standard.

The Baltimore, MD region’s federal reference monitors have demonstrated compliance with the 65 μg/m 3 daily standard since the inception of the PM 2.5 monitoring programs within the
state s . The federal reference monitors have demonstrated compliance with the 15.0 μg/m 3
annual standard since 2008 . The most recent design value for the annual standard, based on 20 10

- 201 2 data, is 11. 0 μ g/m 3

.

All PM 2.5 ambient monitoring data through 201 2 have been quality assured in accordance with 40 CFR 58.10, recorded in USEPA’s AQS, and made available for public review. The 2005

- 2007 design value has been chosen as the attainment year for this area, and therefore the Baltimore Nonattainment Area PM2.5 Monitor PM2.5 MonitorBaltimore, MD PM2.5 Redesignation Request` Page 7 Page 7 attainment year inventory used within this redesignation request and the Section 175A maintenance plan is based on the year 2007.

The state commit s to continuing the operation of an appropriate PM 2 .5 air quality monitoring network to verify the maintenance of the attainment status.

Table 3

- 1, presented below, shows the PM 2.5 design values for the monitoring sites in the Baltimore, MD nonattainment area. Note that o nly valid PM 2.5 concentrati ons were used to calculate design values and that a ll data used in the design value calculations was certified by the state and sent to the Director to US EPA, April , 201 3.Baltimore, MD PM2.5 Redesignation Request` Page 8 Page 8 Table 3

- 1 : Baltimore, MD Annual PM 2.5 Desi gn Values 3

AIRS ID Site Name Jurisdiction Date Site Started Sampling Ended 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012

24

- 003

- 0014 Davidsonville ANNE ARUNDEL 6/6/1980 12.9 12.1 12.1 11.9 12.2 12

24

- 003

- 0019 Fort Meade ANNE ARUND EL 2/1/1980 12/31/2004 13.9 13 12.8 12.7 13.2

24

- 003

- 1003 Glen Burnie ANNE ARUNDEL 1/1/1965 15.7 15.3 15.2 15.3 14.9 14.3 13.3 12.3 11.5 10.9 10.7

24

- 003

- 2002 Riviera Beach ANNE ARUNDEL 1/1/1968 12/31/2005 14.4 14.2 14.1 14.6 15.1 15.7

24

- 005

- 1007 Padonia BALTIMORE 1/1/1979 14.6 14.2 13.8 14 13.7 13.6 12.6 11.8 10.8 10.1 9.6

24

- 005

- 3001 Essex BALTIMORE 4/1/1967 15 15.2 14.9 15.1 14.8 14.5 13.6 12.6 11.7 11.1 11.0

24

- 025

- 1001 Edgewood HARFORD 1/1/1980 13.8 12.8 12. 5 12.9 12.6 12.4 11.7 11 10.1 9.8 10.3

24

- 510

- 0006 NE Police Station BALTIMORE 1/1/1970 14.9 14.1 14.1 14.4 14.2 13.8 12.8 11.8 10.8 10 10.0

24

- 510

- 0007 NW Police Station BALTIMORE 1/1/1970 15.4 15 14.7 15 14.3 13.9 12.9 12 11 10.2 9.9

24

- 510

- 0008 Fire Dept. 20 BALTIMORE 1/1/1970 17.4 16.5 15.3 15.9 15.9 15.6 14 12.9 11.6 10.9 10.4

24

- 510

- 0035 Fairfield FMC BALTIMORE 1/1/1980 8/18/2008 16.4 15.9 15.8 16.2 15.7 15.1 14.5**

24

- 510

- 0040 Old Town BALTIMORE 1/1/1981 16.9 16.6 16.3 16. 6 16 15.2 14 12.7 11.7 11.3 11.1

24

- 510

- 0049 Westport E S BALTIMORE 7/1/1990 12/31/2005 15.3 15.4 15.3 15.6 15.8 16.1

Baltimore NAA annual design value* 17.4 16.5 15.8 16.2 15.9 16.1 14 12.9 11.7 11.1 11.0
*The site, “Old Town ,” AIRS ID 24

- 510

- 0040, should not be used for planning attainment of the annual NAAQS, because it measures the ‘middle

- scale’ near a busy downtown intersection. **For 2008, the site "Fairfield FMC" AIRS ID 24

- 510

- 0035 was shut down in August a nd did not report enough data to calculate a valid design value. Therefore this value was not used in the Baltimore non

- attainment area design value designation.

3 Report of Maryland PM 2.5 Design Values, MDE Air Monitoring ProgramBaltimore, MD PM2.5 Redesignation Request` Page 9 Page 9 Figure 3

- 2 shows a decreasing trend in the annu al PM 2.5 design value as well. For each
year from 2002 to 201 2 , the annual PM 2.5 design value decreased for the Baltimore, MD 1 997 PM 2.5 NAAQS nonattainment area. Over this time period, the annual PM 2.5 design value improved dramatically.



### F IGURE 

### 3

- 2 : B ALTIMORE 

### A REA 

### A NNUAL PM 2.5 

### D ATA 

### T RENDS 4

3.1.4 Missing Data under the 1997 Annual P M 2 .5 Standard

Annual PM 2.5 attain m ent is deter m ined accor d i n g to federal procedures cited in Appendix N to Part 50

— Interpretation of the National A m bient Air Quality Standards for PM 2

. 5
. For a single site, 3 years of valid annual m eans are required to produce a valid annual standard design value.

A year m eets data co m pleteness req u ire m ents when at least 7 5 perce n t of the scheduled

sa m pling days for each quarter have valid data. Quarterly data ca p ture rates (ex p re s sed as a
p e r c entag e ) are specifically calculated as the nu m ber of creditable sa m ples for the quarter

4 PM 2.5 Design Values, MDE Air Monitoring ProgramBaltimore, MD PM2.5 Redesignation Request` Page 10 Page 10 divided by the nu m ber of scheduled sa mples for t h e quarter, t h e result t h en m ultiplied b y 100 and

r o unded to the ne a rest integer. Ye a rs with a t l e ast 11 sa m p les in each quarter can be considered valid, as long as the quarters m eet the capture require m e nts, if certain require m ents are m et. (See above m entioned CFR for further info r m ation.) If these criteria are not m et, then compliance with the an n ual PM 2 .5 s t andard cann o t be e s tabli s hed. To date, acce p table m onitoring has been

m aintained and exceeded in the State of Maryland for the annual P M 2 .5 standard.

3.1.5 Quality As s urance

The Maryland a m bient air m onitoring data used in the above analysis has been qualit y assured in accorda n ce with 40 CFR Part 58 a n d Maryland’s Quality Assurance P roje c t Plan (QAPP) for particulate matter. Maryland’s QAPP is a detailed description of the state’s actions
to assure the collection of ambient air monitoring measurements of su fficient quality and quantity . In addition, the ambient air monitoring network is reviewed annually through the Annual Ambient Air Monitoring Network Plans, in accordance with 40 CFR Pa r k 58.10. A site can be discontinued or r e located based on the annual review and with approval from the USEPA Regional A d m i nistrator. The Maryland quality assu r ed a m bient air monitoring data is submitted into the AQS database and is available to the public.

3.1.6 Continued Monitoring Com m i t m ent

The State of Maryland is com m itte d to continue monitoring P M 2 .5 concentrations in the Baltimore area and throughout the state in accordance with 40 CFR Part 58 and USEPA approved Annual Monitoring Plans. Maryland will co n tinue to quality ass u re t h e a m bient air

m onitoring data in accorda n ce with 40 CFR 58 and sub m it the data into the AQS in a ti m ely fashion.

The State of Maryland com m i ts to continue working with the USEPA to ensure t h at the PM 2 .5 monitoring network is sufficie n tly m eeting t h e monitoring require m ent of 40 CFR 58 and its m o nitoring objectives.

3.1.7 Clean Data Deter m ination

On November 23, 2011, USEPA published a proposed rule in the Federal Register stating
t h at the Baltimore, MD P M 2 .5 nonattain m ent area has attained the 1997 annual P M 2 .5 standard based on three y ears o f qualit y a ss ured a m bient a i r quality data (Federal Register Vol. 76, No. 226, 11/23/2011). T he USEPA finalized this clean data determination for the Baltimore area on May 22, 2012 (Federal Register, Vol. 77 , No. 99)

.Baltimore, MD PM2.5 Redesignation Request` Page 11 Page 11 

### 3.2 Implementation Plan Approval

The area m ust have a fully approved PM 2 .5 i m ple m entation plan. The State of Maryland Plan for PM 2 .5 and Attain m ent De m onstration for the Baltimore, MD Nonattainment Area was proposed for public hearing on April 30, 2008, and was sub m itted to USEPA in June 2008. Secti o n 110(k) of the CAA establis h ed criteria that any plan sub m ission m ust meet before USEPA is required to act on the su bmission. This P M 2 .5 SIP was dee m ed to be co m plete (except for the PM2.5 Nonattainment NSR) on December 8, 2008. In that plan, Maryland adopted several regulations and progra m s as needed to reduce P M 2 .5 and precurs o rs.


### 3.3 Permanent and Enforceable Emission Reductions

As noted in § 107(d)(3)(E)(iii) and in the redesignation guidance, a state must be able to reasonably attribute its air quality improvements to PM 2.5 precursor and direct PM 2.5 emission reductions that are both permanent and enforceable. Attainment resulting from temporary reductions in emission rates (such as reduced production or shutdown due to temporary adverse economic condi tions) or unusually favorable meteorological conditions does not qualify.

In making this showing, the state should estimate the percent reduction (from the year that was used to determine the design value for designation and classification) achieved from federal and state measures. Estimates should consider factors such as emission rates and production capacities in order to show that the improvements are the result of implemented controls. The analysis should assume that sources are operating at permitt ed levels (or historic peak levels), unless evidence is presented that such an assumption is unrealistic.

For this redesignation request and the associated maintenance plan, ammonia and volatile organic compounds (VOC) are precursors, however, they are no t considered significant overall contributors to PM 2.5 air quality issues, as noted in the PM 2.5 implementation rule at 40 CFR 51.1002(c)(3). Therefore, this maintenance demonstration focuses on SO 2 , direct PM 2.5 , and NO X
. Although the focus of the redes ignation request and maintenance plan is on the dominant P M 2 .5 precursors ( SO 2 , direct PM 2.5 , and NO X ), all P M 2 .5 precursors ( ammonia and volatile organic compounds included) are evaluated in Appendix G of the Maintenance Plan.

Permanent and enforceabl e reductions of PM 2.5 , NO X , and SO 2 from a variety of state and federal measures have contributed to the attainment of the standard for fine particles. Measures that have contributed to fine particulate air quality improvement include, but are not limited to, a variety of on

- road emissions control programs and the Healthy Air Act.

3.3.1 On
- Road Emission Reduction Requirements

A variety of federal vehicle control programs have contributed to reduced on

- road emissions of PM 2.5 , NO X , and SO 2 in the Baltimore, MD n onattainment area between 2002 and 2007. These programs include:Baltimore, MD PM2.5 Redesignation Request` Page 12 Page 12 • Federal Tier 1 New Vehicle Emission and New Federal Evaporative Emission Standards : Under § 202, USEPA established federal motor vehicle emission standards (Tier I standards), which were p hased in beginning with model year 1994. The benefits of this program are reflected in the 2002 base year inventory and the 2007 attainment year inventory. This federally implemented program affects light duty vehicles and light duty trucks. The regulat ions require more stringent exhaust emission standards as well as a uniform level of evaporative emission controls.

• National Low Emission Vehicle Program: Under the National Low Emission Vehicle program, automobile manufacturers agreed to comply with tai lpipe standards that were more stringent than USEPA could mandate prior to model year 2004. Once manufacturers committed to the program, the standards became enforceable in the same manner in which other federal motor vehicle emission control requirements were enforceable. The program was in place nationwide for model year 2001, and the benefits of this program are reflected in the 2002 base year inventory and the 2007 attainment year inventory.

• Tier 2 Motor Vehicle Emission Regulations : On February 10, 2000 (65 FR 6698), USEPA promulgated a rule requiring more stringent tailpipe emissions standards for all passenger vehicles, including sport utility vehicles, minivans, vans, and pick

- up trucks. These regulations also required lower levels of sulfur in g asoline, which ensured the effectiveness of low emission control technologies in vehicles and reduced harmful air pollution. The tailpipe and sulfur standards required passenger vehicles to be 77 to 95 percent cleaner than those built before the rule was promulgated and reduced the sulfur content of gasoline by up to 90 percent by 2006. The benefits of this program are reflected in the 2007 attainment year on

- road mobile inventory.

• Heavy Duty Diesel Engine Rule: This federal rule (66 FR 5002) required truck manufacturers to comply with more stringent tailpipe standards by 2004 and 2007. The rule also mandated use of ultra

- low sulfur diesel fuel to enable modern pollution control technology on trucks and buses. Refiners began producing the cleaner

- burn ing diesel fuel for use in highway vehicles beginning June 1, 2006. The benefits of this program are reflected in the 2007 attainment year inventory for on

- road mobile sources.

The reductions in emissions from the on

- road sector between 2002 and 2007 are presented in Table 3

- 2. . These emissions estimates are derived using the Motor Vehicle Emissions Simulator (MOVES2010a), Travel Demand Model Version 2.3, and the most recent planning assumptions as updated in the Baltimore Metropolitan Council Forecas t. To calculate incremental benefits from the implementation of the individual control measures listed above is very difficult. Therefore, the information presented su mmarizes the combined benefits of these rules. More information on the development of these emissions estimates may be found in the Technical Support Document (see the Baltimore Nonattainment Area PM2.5 Maintenance Plan

, “Appendix D: Emission Inventory Documentation)”.Baltimore, MD PM2.5 Redesignation Request` Page 13 Page 13 Table 3

- 2 : On

- Road Emi ssion Reductions for the Baltimore Area, 2002

- 2007

2002 On

- Road Emissions 2007 On

- Road Emissions 2002

- 2007 % On

- Road Reduction, Area

- Wide

SO 2 On

- Road Emissions, tpy

2,025.5 1 385.34 80.98%

NO X On

- Road Emissions, tpy

76,060.01 49,140.12 35.39%

PM 2.5 On

- Road Emissions, tpy

2,344.86 1,789. 28 23.69%



### 3.4 Maintenance Plan

Section 107(d)(3)(E) of the CAA stipulates that for an area to be redesignated, USEPA must fully approve a maintenance plan that meets the requirements of § 175(A). States may submit both the redesignation request and the maintenance plan at the same time, and rulemaking on both may proceed on a parallel track. All applicable nonattainment area requirements remain in place. The maintenance plan will constitute a SIP revision and must provide for maintenance of the relevant NAAQS in the area for at least 10 years after redesignation. Section 175(A) further states that the plan shall contain such additional measures, if any, as may be necessary to ensure such maintenance. States must also subm it a SIP revision eight years after the original redesignation request is approved to provide for maintenance of the NAAQS for an additional 10 years following the first 10

- year period.

US EPA requires the following provisions to ensure maintenance of the NAAQS:

• The state must develop an attainment emissions inventory to identify the level of emissions in the area which is sufficient to attain the NAAQS.

• A state may generally demonstrate maintenance by showing that future emissions of a pollutant or its p recursors will not exceed the level of the attainment inventory over the 10

- year period following redesignation.

• Once an area has been redesignated, the state must continue to operate an appropriate air quality mo nitoring network in order to verify the ar ea's attainment status.

• The state must ensure that it has the legal authority to implement and enforce all measures necessary to attain and maintain the NAAQS. Continued attainment must be verified by the state by indicating how maintenance plan progress will be tracked.

• Contingency measures must be available to promptly correct any NAAQS violation

. At a minimum, the contingency measures must include a requirement that the state will implement all measures contained in the nonattainment SIP prior to red esignation.Baltimore, MD PM2.5 Redesignation Request` Page 14 Page 14 An appropriate maintenance plan for the area meeting all federal requirements is being submitted along with this redesignation request . This maintenance plan relies upon programs such as the Healthy Air Act, New Source Review permitting, Ti er II vehicle emission standards, and other on

- road and nonroad engine standards, to demonstrate that air quality will be maintained at least 10 years into the future. The plan contains contingency measures to be implemented in case of worsening air quali ty and mobile vehicle emission budgets for transportation conformity purposes.

The State of Maryland’s PM 2.5 Maintenance Plan for the Baltimore, MD area is provided as a separate document, titled Baltimore Nonattainment Area PM2.5 Maintenance Plan

. 

### 3.5 Secti on 110 and Part D Requirements

States must provide assurances that the applicable implementation plan has been fully approved by US EPA under § 110(k) and must satisfy all requirements that apply to the area. Approval action on SIP elements and the redesig nation request may occur simultaneously. An area cannot be redesignated if a required element of its plan is the subject of a disapproval; a finding of failure to submit or to implement the SIP; or partial, conditional, or limited approval.

For purpose s of redesignation, states must meet all requirements of § 110 and Part D of the CAA that were applicable prior to submittal of the complete redesignation request. Subpart 1 of Part D consists of general requirements applicable to all areas which are desi gnated nonattainment based on a violation of the NAAQS. Subpart 4 of Part D consists of more specific requirements applicable to particulate matter (specifically to address PM 10 ). However, for the purpose of implementing the 1997 PM 2.5 standard, the USEP A’s implementation r ule stated Subpart 1, rather than Subpart 4, is appropriate for the purpose of implementing PM 2.5 ( Federal Register, Vol. 72 , No. 79, 4/25/2007 ).

3.5.1 Demonstration of Compliance

The Baltimore, MD area has had few SIP submittal requirements i n the past since the area has not been a persistent nonattainment area for PM 2.5 . Since the area’s air quality improved so that the area met the 1997 PM 2.5 NAAQS well prior to the 2010 compliance date, most requirements, other than those associated with m ajor new source review permitting and conformity, were limited.

Section 110(a) of the CAA contains the general requirements for a SIP. Section 110(a)(2) provides that the implementation plan submitted by a state must have been adopted by the state after reasonable public notice and hearing, and that, among other things, it must:

• Include e nforceable emission limitations and other control measures, means or techniques necessary to meet the requirements of the CAA;

• Provide for establishment and operation of appropriate devices, methods, systems and procedures necessary to monitor ambient air quality;Baltimore, MD PM2.5 Redesignation Request` Page 15 Page 15 • Provide for implementation of a source permit program to regulate the modification and construction of any stationary source within the areas covered by the plan;

• I nclude provisions for the implementation of Part C, prevention of significant deterioration (PSD) and Part D, NSR permit programs;

• Include criteria for stationary source emission control measures, monitoring, and reporting;

• I nclude provisions for air quality modeling; and

• Provide for public and local agency participation in planning and emission control rule development.

Section 172(c) contains general requirements for nonattainment plans. The requirements for reasonable further progress, identification of certa in emissions increases, and other measures needed for attainment do not apply for redesignations because they only have meaning for areas not attaining the standard. The requirements for an emissions inventory were satisfied by the information in Chapter 3 and Appendix A of the Baltimore Nonattainment Area PM 2.5 State Implementation Plan and Base Year Inventory (SIP Number: 08

- 04) , which was submitted to USEPA on June 6, 2008.

The SIP contains provisions that are consistent with the § 176(c)(4) conformity requirements. For Maryland’s SIP, both general conformity requirements and transportation conformity requirements are contained in COMAR 26.11.26.

## MARYLAND DEPARTMENT OF THE ENVIRONMENT 1800 Washington Boulevard • Baltimore MD 21230
410

- 537

- 3000 • 1

- 800

- 633

- 6101 • www.mde.state.md.us

Martin O'Malley Governor

Anthony G. Brown Lieutenant Governor Robert M. Summers, Ph. D. Secretary



# Bal timore Nonattainment Area PM 2.5 

# Maintenance Plan

SIP Number: 13

- 10

May 27 , 2013

Prepared for:

U.S. Environmental Protection Agency

Prepared by:

Maryland Department of the Environment

## This Page Left Intentionally BlankBalti more, MD PM 2.5 Maintenance Plan

– Table of Contents 

### Table of C ontents 1. Introduction
................................ ................................ ......................... 1

1.1 National Ambient Air Quality Standard (NAAQS) for Fine Particulate Matter

............ 1
2. Background
................................ ................................ .......................... 2

2.1 Health Effects from Elevated Concentrations of PM 2.5
................................ .................. 2

2.2 Geographical Description of the Baltimore, MD PM 2.5 Nonattainment Area

................ 3
3. U.S. EPA Redesignation and Maintenance Plan Requirements
............... 5

3.1 At tainment of the Standard

................................ ................................ ............................. 5

3.2 Implementation Plan Approval

................................ ................................ ....................... 6

3.3 Per m anent and Enforceable I m prove m ent

................................ ................................ ...... 6

3.4 Maintenance Plan

................................ ................................ ................................ ............ 6

3.5 Commitment to Revise Plan

................................ ................................ ........................... 8

3.6 Public Participation

................................ ................................ ................................ ......... 8

3.7 Legal Authority to Implement and Enforce

................................ ................................ .... 8
4. Maintenance Plan Development
................................ ............................ 9

4.1 Attainment Inventory

................................ ................................ ................................ ...... 9

4.1.1 Summary

................................ ................................ ................................ ............... 10

4.2 Projection Inventory

................................ ................................ ................................ ..... 10

4.2.1 Summary

................................ ................................ ................................ ............... 11

4.3 Demonstration of Maintenance

................................ ................................ ..................... 11

4.3.1 Projected	Emissions	below	Attainment	Year	Emissi ons

................................ ....... 12

4.3.2 Control	Measures	for	Maintenance	of	Good	Air	Quality

................................ ...... 12

4.3.2.1 Point Sector Controls

................................ ................................ ........................ 13

4.3.2.2 Nonroad Diesel Emission Reduction Programs

................................ ................ 15

4.3.2.3 On

- Road Emission Reduction Programs

................................ .......................... 15

4.4 Commitment to Operate Air Quality Monitoring Network

................................ .......... 16

4.5 Legal Authority

– Verify Continued Attainment

................................ .......................... 17

4.6 Transportation Conformity and Mobile Source Emissions Budgets

............................ 18

4.6.1 Budget	Level	for	On

- Road	Mobile	Source	Emissions

................................ ............ 21

4.7 C ontingency Measures

................................ ................................ ................................ .. 23

4.7.1 Exceedance	of	the	Attainment	Year	Emissions	Inventory

................................ .... 24

4.7.2 Near	Term	Contingency	Measures	for	A ir	Quality	Exceedances

.......................... 24

4.7.3 Long	Term	Contingency	Measures

................................ ................................ ....... 24

4.7.4 Contingency	Measure	Implementation	Schedule

................................ ................ 25 Appendices
................................ ................................ ............................... 26Baltimore, MD PM 2.5 Maintenance Plan List of Figures and Tables 

### List of Figures

Figure 2

- 1: Baltimore, MD 1997 PM 2.5 NAAQS Nonattainment Area (purple on ma p)

.............. 4 Figure 4

- 1: Large EGUs in the Baltimore, MD Area

................................ ................................ .. 14 Figure 4

- 2: Baltimore, MD PM2.5 Monitoring Sites

................................ ................................ .. 17 Figure 4

- 3: Baltimore, MD Annual PM 2.5 Trend

................................ ................................ ......... 21



### List of Tables

Table 2

- 1: Baltimore, MD Nonattainment Area with FIPS C odes

................................ ................. 3 Table 4

- 1: 2007 Baltimore, MD Attainment Year Inventory

................................ ...................... 10 Table 4

- 2: Growth Assumptions Used in Emission Inventory Pro jections

................................ . 11 Table 4

- 3: Baltimore, MD NO x , SO 2 , & Primary PM 2.5 Emissions, 2007 to 2025

..................... 12 Table 4

- 4: Comparison of SO 2 Emissio ns from On

- Road Sources to the Total SO 2 Inventory

.. 20 Table 4

- 5: Baltimore, MD Maintenance Plan On

- Road Mobile Source Emissions Budgets

...... 22 Table 4

- 6: Baltimore, MD NO x , SO 2 , & Primary PM 2.5 Emissions, 2007 to 2025 with Mobile Budgets

................................ ................................ ................................ ................................ ......... 22 Table 4

- 7: Contingency Control Measures

................................ ................................ .................. 24Baltimore, MD PM 2.5 Maintenance Plan Page 1 1. Int roduction

The State of Maryland is submitting this maintenance plan for the Baltimore, MD 1997 fine particulate (PM 2.5 ) nonattainment area to the United States Environmental Protection Agency (USEPA) in support of the Baltimore, MD redesignation request fo r that standard. This document demonstrates that PM 2.5 air quality in the Baltimore, MD area will remain compliant with the 1997 PM 2.5 NAAQS, as measured by a monitoring network that meets all federal requirements. This plan includes mobile vehicle emiss ions budgets for the interim year of 2017 and the out year of 2025. It also contains contingency measures that will be implemented in the unlikely event that the area experiences an exceedance of the 1997 PM 2.5 NAAQS.

1.1 National Ambient Air Quality Standar d (NAAQS) for Fine Particulate Matter

W hen USEPA esta b lish e s a NAAQS, this stan d ard applies to the concentration of a pollutant in a m bient outdoor air. A m bient air is considered to be the air that so m eone in the general public would breathe. If the air q uality in a geogr a phic area m eets o r is cleaner than the national standard, it is designated an att a in m ent area; areas that do not m eet the national standard or contribute to another area that v i olates the air q u ality stan d ard are designated as nonattain m e nt areas.

Fine particulate m atter
, or PM 2 .5
, is a m i xture of m i cro s copic solids and liquid droplets suspended in air. P M 2 .5 descri b es p a rticul a t e m atter that is 2.5 m i cro m eters in dia m eter and

s m aller

, 1/ 3 0th the d i ameter of a h u m an hair. Fine particles are gen e rally e m itted f rom activities such as indust r ial and residential co m b ustion and from vehicle exhaust. Fine particles are also for m ed in the at m osphere when gases such as sul f ur dioxide, nitrogen oxides, and volatile organic co m pounds are che m ical ly tra n s f or m ed into particl e s.

USEPA established the fine particle standards in July of 1997 after evaluating health studies and conducting an extensive peer review process. The 1997 annual standard was established at a level of 15 m i crogra m s per cubic m eter, bas e d on the 3

- year average of annual m ean PM 2 .5 concentrati o ns.Baltimore, MD PM 2.5 Maintenance Plan Page 2 2. Background

In 1997, USEPA established two new PM 2.5 standards: an annual standard of 15.0 μg/m 3 and a 24

- hour standard of 65 μg/m 3 . USEPA designated the Baltimore, MD area as nonattainment for the 1997 PM 2.5 NAAQS with an effective date of April 5, 2005 (Federal Register, Vol. 70, No. 3, 1/05/2005).

S ince this designation was made, PM 2.5 air quality in the Baltimore, MD area has improved such that the air quality is significantly better than required by the 1997 PM 2.5 NAAQS. The Baltimore, MD region’s federal reference monitors have demonstrated comp liance with the 65 μg/m 3 daily standard since the inception of the PM 2.5 monitoring programs within each state. The federal reference monitors have demonstrated compliance with the 15.0 μg/m 3
annual standard since 2008 . The most recent design value for t he 24

- hour standard, based on 2009

- 2011 data, is 29 μ g/m 3 , and the most recent design value for the annual standard, based

on 2009

- 2011 data, is 11.1 μ g/m 3

.
These improvements in air quality are due to permanent and enforceable emissions reductions of su lfur dioxide (SO 2 ) and nitrogen oxides (NO X ), the precursors to PM 2.5 , and also in reductions of primary PM 2.5 emissions. This document provides a maintenance plan, as required under Section 175A of the federal Clean Air Act (CAA), to ensure that the citi zens of the Baltimore, MD area enjoy the benefits of healthy air quality that complies with the 1997 PM 2.5 NAAQS for a minimum of 10 years, through 2025. This maintenance plan supports the redesignation request that the State of Maryland is submitt ing to USEPA concurrently with this document.

2.1 Health Effects from Elevated Concentrations of PM 2.5

Health studies have shown a significant association between exposure to fine particles and
pre m ature death from h e art or lung disease. F i ne particles can aggrav ate heart and lung diseases and have been linked to effects such as: cardiovascular sy m pto m s; cardiac arrhyth m ias; heart att a cks; res p ir a t ory sy m pto m s; asthma attacks; a n d bronchitis. These effects can res u lt in increased hospital ad m i ssions, e m ergency ro om v i sits, absences from school or work, and restricted activity days.

Roughly one out of every three people in the United States is at a higher risk of experiencing PM 2 .5 related health effects. One group at high risk is active children because they oft en spend a lot of ti m e playing outdoors at ti m es when con c entrations of fine par t icles are hig h er. In addition, children’s bodies are still deve l oping and they breathe m ore air per pound of body weight than adults do. T he elderly population is often at hi gh risk due to reduced lung capacity or preexisting m edical conditions. Pe ople of a ll ages who are acti v e outd o ors are at i n crea s ed risk because during physical activity, P M 2 .5 penetrates d eeper into t h e parts of the lungs that are more vulnerable to inju ry.Baltimore, MD PM 2.5 Maintenance Plan Page 3 2.2 Geographical Description of the Baltimore, MD PM 2.5 Nonattainment Area

USEPA designated the Baltimore, MD area as nonattainment for the 1997 PM 2.5 NAAQS with an effective date of April 5, 2005 (Federal Register, Vol. 70, No. 3, 1/05/2005). Table 2

- 1 provides the jurisdictions within the Baltimore, MD 1 997 PM 2.5 nonattainment area, and Figure 2

- 1 depicts the map of the area.

Table 2

- 1 : Baltimore, MD Nonattainment Area w ith FIPS Codes
County Name State/County FIPS Anne Arundel County 24003 Baltimore County 24005 Carroll County 24013 Harford County 24025 Howard County 24027 Baltimore City 24510Baltimore, MD PM 2.5 Maintenance Plan Page 4 Figure 2

- 1 : Baltimore, MD 1997 PM 2.5 NAAQS Nonattainment Area (purple on map)

Baltimore, MD Hagerstown

- Martinsburg, MD

- WV Washington, DC

- MD

- VA Fine Particulate Matter (PM 2.5 ) Non

- Attainment Areas in Maryland and Surrounding Jurisdictions

FRM PM

- Fine Monitors in Maryland Baltimore, MD Hagerstown

- Martinsburg, MD

- WV Washington, DC

- MD

- VA Fine Particulate Matter (PM 2.5 ) Non

- Attainment Areas in Maryland and Surrounding Jurisdictions

FRM PM

- Fine Monitors in MarylandBaltimore, MD PM 2.5 Maintenance Plan Page 5 3. U.S. EPA Red e s ignation and Maintenance Plan Requirements

An area designated as nonattain m ent for a pollutant can be redesignated to att a in m ent if speci f ic conditions are m et. Maryland follo w ed the USEPA published m e m orandum entitled

“ P rocedures for Processing Requests to Redesignate Areas to Attain m ent” ( S epte m ber 4, 1992) in preparing the redesignation de m onstration and the m aintenance plan. The

m e morandum provides guidance regarding the processing of requests for redesignation of nonattain m ent areas to attai n m ent f or ozone, carbon m onoxide, particulate m atter, sul f ur dioxide, nitrogen dioxide, and lead.

Further m ore, the CAA lists five obligation s that the USEPA m u st m eet during the redesignation process. Section 10 7 (d)(3)(E) st a t e s :

The Ad m inistrator may not pro m ulgate a re d esignation of a n o nattainment area (or port i on thereof) to attai n m ent unless

–
(i) the Ad m i n istrator determines that the area h a s at t ained the national

a m bient air quality standard; (ii) the Ad m i nistrator has ful l y app r oved the applicable i m plementation plan for t h e area under section 110( k ); (iii) the Ad m i nistrator determines that the i m prove m e nt in air quality is due to per m anent and enf orceable r eductions in e missions res u lting from i mple m entation of the applicable i m ple m entation plan a n d applicable Federal air p o llutant control r e gulations and other per m a n ent and enforceable reductions; (iv) the Ad m i nistrator has ful l y app r oved a m a intenan c e plan for the

area a s m e et i ng the require m ents of section 1 7 5A; and (v) the State containing such area has met all requirements applicable to the area under section 110 and part D.

These 5 obligations m ust be m et before redesign a tion to attai n m ent status; how ever, a state

m ay sub m it both the redesignation request and the m a intena n ce plan at t h e s a m e ti m e so that rule m aking on both m ay proceed on a parallel t r ack. This d o cu m ent outlines Maryland’s redesignation request a n d de m onstrates how the state suppo r ts E PA’s promulgation obligations towards the redesig n ation of the Baltimore nonattainment area under the 1997 PM 2 .5 NAAQS.

3.1 Attainment of the Standard

A state requesting redesignation m ust show that the area is attaining the a pplica b le N AAQS. EPA, in turn, m us t deter m ine that the annual P M 2 .5 NAAQS in a m bient air is de m onstrated if the design value based on the last three (3)

- year ann u al m ean is less than the 15.0 m i crogram per cubic m eter level of the NAAQS. In Maryland’s redesignation request, Maryland p re s en ts in f or m ation t h at demonstrates that the Baltimore, MD region has att a ined t h e NAAQS f or P M 2

. 5
. This de m onstration is based on three years of quality assured monitoring data as specified in 40 CFR 58. On November 23, 2011

, USEPA published a proposed rul e in the Federal Register stating that the Baltimore, MD PM 2 .5 nonattain m ent area ha d attained theBaltimore, MD PM 2.5 Maintenance Plan Page 6 1997 annual PM 2 .5 s t a n dard based o n three y ears of quality assured a m bient air quality data (76 F R 72374

, November 23, 2011 )

. On May 22, 2012 , EPA published a final rule in the Federal Register stating t h at the Baltimore, Maryland fine particulate (PM2.5) nonattain m ent area has attained the 1997 annual P M 2 .5 standard based on three y ears o f quality a ss ured

a m bient a i r quality data (7 7 FR 30208 ). Due to th is improvement in PM 2.5 air quality, the Baltimore, MD nonattainment area is currently operating under a clean data determination ( Federal Register, Vol. 77, No. 99

, Tuesday, May 22 , 2012 )

.

3.2 Implementation Plan Approval

The area m ust have a fully approved PM 2 .5 i m ple m entation plan. The State of M aryland State Implementation Plan and Attain m ent De m onstration for PM 2 .5 for the Baltimore, MD Nonattainment Area was presented for public hearing on April 30 , 20 08 and was sub m itted to USEPA in June 2 00 8 . Secti o n 1 10(k) of the CAA estab lis h ed criteria that any plan sub m ission m ust meet before USEPA is required to act on the submission. This P M 2 .5 SIP was dee m ed to be co m plete on December 8, 2008 . In that plan, M aryland adopted several regulations and progra m s as n eeded to reduce P M 2 .5 and precurs o rs.

3.3 Per m anent and Enforceable I m prove m ent

The USEPA must show that the i m prove m ent in air quality bet w een the year when violations occurred and the attain m ent year is attributed to per m a n ent and enforceable e m ission reduct ion s . Section 4 of this docu m ent presents the reduction that was achieved fr o m federal

a n d state m easures. The e m ission reduction is not based on temporary shutdowns or adverse

econo m ic conditions, but due to per m anent and e n forceable c o ntrol m easu r es. Section 4.3.2 of this docu m ent incl u des an outli n e of the contr o l m e asures that h ave brought the area into attain m ent of the P M 2 .5 standard. T his plan includes a state com m i t m e nt to continue to enforce all applicable require m ents of past revisions to the S IP after the P M 2 .5 nonattain m e nt area is redesignated to attain m ent.

3.4 Maintenance Plan

The redesignation process provides that a state may petition USEPA to redesignate a nonattainment area as attainment and that USEPA may approve the redesignation subject to certain criteria being met. Section 107(d)(3)(D) states:

(D) The Governor of any State may, on the Governor’s own motion, submit to the Administrator a revised designation of any area or portion thereof within the State. Within 18 months of receipt o f a complete State redesignation submittal, the Administrator shall approve or deny such redesignation. The submission of a redesignation by a Governor shall not affect the effectiveness or enforceability of the applicable implementation plan for the State

. Section 107(d)(3)(E) stipulates one of these criteria, that US EPA must fully approve a maintenance plan that meets the requirements of § 175A. A state may submit both the redesignation request and the maintenance plan at the same time, and rulemaking on both may proceed on a parallel track. All applicable nonattainment area requirements must remain inBaltimore, MD PM 2.5 Maintenance Plan Page 7 place. The maintenance plan constitutes a SIP revision and must provide for maintenance of the relevant NAAQS in the area for at least 10 years after r edesignation, including additional measures to ensure prompt correction of any violation of the NAAQS. The state must also submit a SIP revision 8 years after the original redesignation request is approved to provide for maintenance of the NAAQS for an ad ditional 10 years following the first 10

- year period. USEPA provided guidance dated September 4, 1992 on the redesignation request and maintenance plan process in the memorandum from John Calcagni, Director, Air Quality Management Division to Regional Air Directions entitled Procedures for Processing Requests to Redesignate Areas to Attainment (redesignation guidance). 1 Other requirements are provided in 40 CFR 51 Subpart Z, entitled Provisions for Implementation of PM 2.5 National Ambient Air Quality Stan dards (implementation rule). Additional guidance was received in the development of this maintenance plan from USEPA regional staff.

The Maintenance Plan m ust contain the following ele m ents:

• A co m prehensive “attai n m ent year” e m issions inventory of pri m ary P M 2 .5 and the precursors of secondary P M 2

. 5 : oxides of nitrogen (NOx) and sulfur dioxide (SO 2 ). In the Clean Air Fine Particle Imple m entation Rule (72 FR 20586, April 25, 2007), EPA did not m ake a find i ng that all pr ecursors sh o uld be eval u ated in eac h nonattain m e nt

area. Fi n e particul a t e m atter, S O 2 , and NOx were required to be evaluated, however ammonia and volatile organic co m pounds were not;

• A projection of the e m issions inventory forward to a year a t l e ast ten years after redesignation and a de m o nstr a tion t h at the p roj ec t ed le v el of e m issions is su ff i cient to

m aintain attain m ent of the P M 2 .5 NAAQS;

• A demonstration of maintenance by showing that future emissions of a pollutant or its precursors will not exceed the level of the attainment inventor y over the 10

- year period following redesignation;

• A com m itment th a t , on c e rede s i gnated, the s t a t e will co n tin u e to ope r ate an approp r i a te monitoring network to verify m aint e nance of the attain m ent status;

• A de m onstration of leg a l auth o rity to i m ple m ent and en f orce all co n t r o l m easures contained in the SIP;

• Provisions f or future updates of the inventory to enable tracking of e m is si ons levels, including an annual e m issions state m ent from m a jor sources;

• Motor vehicle e m issions budgets for trans p ortation c onfo r m ity for the ten

- year

m aintenance period;

• A com m i t ment to sub m it a revised Mainten a nce Plan eig h t years after redesignation;

1 See http://www.epa.gov/ttn/oarpg/t5/memoranda/redesignmem090492 .pdf , accessed April 27, 2012.Baltimore, MD PM 2.5 Maintenance Plan Page 8 • A com m i t ment to enact and i m pl e m ent additional contingency m easures expeditiously in the event that future violations of the NAAQS o c cur; and

• A list of potential contingency m easures that would be i m ple m ented in such an event.

On January 4, 2013, in Natural Resources Defense Council v. EPA, the D.C. Circuit Court remanded to EPA the PM2.5 implementation rule. Appendix G: Inf ormation Addressing NRDC v. EPA, Case No. 08

- 1250 includes the 2007, 2017, and 2025 VOC and NH 3 inventories and an assessment of their roles in demonstrating continued maintenance in this area.

T his Mai n tenance Plan h as been pre p ared in acc o rdance with the req u ire m ents specified in EPA’s guidance docu m e nt and additional guidance received f rom USEPA staff. The following subsections of this docu m ent describe how EPA ’ s require m ents for a m aintenance plan have been m et.

3.5 Commitment to Revise Plan

Under Secti on 175A of t he Clean Air Act, an area designated as m aintenance for a NAAQS is required to sub m it a second m aintenance plan eight (8) y e ars after re d esi g nation of any area as an attain m ent area under Section 107(d). This second m aintenance plan is intende d to

m aintain the NAAQS for ten (10) years after the expir a tion of the initial ten year period. The Depart m ent recogn i zes the importance of an up

- to

- date, current m aintenance plan, and

c o mmits to updating it as necessary.

3.6 Public Participation

In acc o rda n c e with Section 110(a)( 2 ) of the CAA, the M aryland is req u ired to h o ld a public hearing p ri o r to ado p tion of this m aintenance p l an and the su b sequent su b m ittal to t h e EPA. The Depart m ent will notify the public a n d other interested parties of an upco m ing pub lic hearing and comment period thirty (30) days prior to hold i ng such hearing for this

m aintenance plan

.

3.7 Legal Authority to Implement and Enforce

The M aryland Department of the Environment has t h e legal authority to develop, i m ple m ent and enforce reg u lat ions re g arding air pollution i n clud i ng the req u ire m ents of this SIP sub m ittal

.Baltimore, MD PM 2.5 Maintenance Plan Page 9 4. Maintenance Plan De velopment

The State of Maryland ha s developed a maintenance plan that meets all USEPA requirements and demonstrates that because of permanent and enforcea ble measures, emissions over the 10 years following redesignation approval will remain below the 2007 attainment year levels while allowing for growth in population and vehicle miles traveled. The period covered by this maintenance plan is 2007 through 20 25.

The State of Maryland ha s developed an emissions inventory

, in accordance with USEPA guidance

, that identifies the level of emissions sufficient to achieve the 1997 PM 2.5 NAAQS. This attainment inventory consists of the actual emissions for a year

, d uring the three

- year period associated with the monitoring data

, showing attainment of the 1997 PM 2.5 NAAQS

. The year is 2007. The plan includes a demonstration that emissions will remain beneath the 2007 levels for a 10

- year period by keeping in place k ey elements of the current federal and state regulatory programs and putting in place additional controls. The state ha s the legal authority to implement and enforce specified measures necessary to attain and maintain the NAAQS.

In addition to maintainin g key elements of regulatory programs, the State of Maryland will acquire air quality and source emissions data to track attainment and maintenance. The State of Maryland will continue to operate and maintain its air quality monitoring network.

The mai ntenance plan includes contingency measures, as necessary, to promptly correct any NAAQS violation that occurs after redesignation of the area.

The following sections pro vide detail on each of the requirements, and the State of Maryland’s approach to me eting each requirement.

4.1 Attainment Inventory

The State of Maryland must develop an attainment year emissions inventory to identify the level of emissions sufficient to achieve the 1997 PM 2.5 NAAQS

. The attainment inventory consists of the actual emission s for the year during the three

- year period associated with the monitoring data showing attainment of the 1997 PM 2.5 NAAQS. In this case, the year is 2007. The 2007 inventory is appropriate to use because it represents the typical inventory for the three

- year period demonstrating attainment of the standard.

The 2007 inventory is consistent with USEPA guidance; is based on annual emissions of SO 2 , NO X , and primary PM 2.5 during 2007; and contains a list of sources and emissions in tons per year. Volatil e Organic Compounds (VOC) and ammonia (NH 3 ) were determined to be insignificant for the PM 2.5 NAAQS for the Baltimore, MD PM 2.5 nonattainment area and for this reason they are not included in the attainment inventory. 2 This determination was based on USEPA ’s policy regarding VOC and NH 3 as they relate to fine particle formation in the

2 See Appendix G.Baltimore, MD PM 2.5 Maintenance Plan Page 10 atmosphere as noted in the implementation rule (FR Vol.72, No. 79, 4/25/2007, section IIA (precursors and pollutants contributing to fine particle formation), pp.20591

- 20593).

4.1.1 Summary

A summary of the 2007 Attainment Year Inventory is presented in Table 4

- 1 : 2007 Baltimo re, MD Attainment Year Inventory

.

A more detailed accounting of the inventory is contained in Appendix A. A d es cription of the procedures and methods used to develop the attainment year inventory is contained in Appendix D

. A detailed emission inventory spreadsheet is presented in Appendix E

.

Table 4

- 1 : 2007 Baltimo re, MD Attainment Year Inventory

Category Pollutant NO X (tpy) SO 2 (tpy) PM 2.5 - PRI 3 (tpy)
Point 35,553.82 98,424.42 8,973.22 Area 4,732.44 2,315.81 6,701.79 Non

- Road Mobile 27,168.92 2,383.98 1,540.88 On

- Road Mobile 49,140.10 385.30 1,789.30 TOTAL 4 116,595.28 103,509.5 0 19,005.19

4.2 Projection Inventory

A Maintenance Plan m u st contain a de m onstration that the levels of e m issions projected for the ten

- year period following redesig n ation are sufficient to m aintain the NAAQS. Accordingly, the MDE has proj ected PM 2

. 5 , NOx, and SO 2 e m issions for the Baltimo r e, MD PM 2.5 nonattainment area for 2025, as well as an interim year, 2017. E m issions for these projection years are co m pared to e m issions levels in 2007 to deter m ine if e m issions are sufficient to m ai n tai n the NAAQS during this period.

The projected inventories are derived by applying the appropriate growth factors to the 2007 Attainment Year Emissions Inventory. USEPA guidance describes four typical indicators of growth. In order of priority, these are as follows: (1) product output, (2) value added, (3) earnings, and (4) employment. Surrogate indicators of activity ; for example

, population growth, are also acceptable methods.

Projected emissions for electric generating unit (EGU) point sources were developed based on electricity generation projections that are delineated by region and fuel. Growth factors are based on AEO2011 Table 96

- Electricity Generation by Electricity Market Module Region

3 PRI refers to primary particulate matter, which is directly released into the environment from human activities and natural sources, as compared with secondary particulate matter, which forms via chemical reactions in the environment.
4 Sums in the “Total” column may reflect rounding errors.Baltimore, MD PM 2.5 Maintenance Plan Page 11 and Fuel Source.

Projected emissions for non

- EGU unit point sources were developed using state

- level employment projections by NAICS code (unless employment growth rate is negative, in which case use “ no growth ” ) and other state

- specific emission projection data.

Project ed emissions for on

- road m obile sour ce s were developed using USEPA’s MOVES2010a mobile source inventory model. These estimates are based on vehicle

- specific registration data obtained from each jurisdiction. Mobile source emission projections included the National Low Emission Vehicle Prog ram (NLEV); the 2004 Tier 2 and Low Sulfur Gasoline Rule; the 2004 and 2007 Heavy

- Duty Diesel Vehicle (HDDV) Rules; and the 2006 Low Sulfur Diesel Rule. All jurisdictions were modeled with Phase II Reformulated Gasoline (RFG) and an enhanced I/M program f or all analysis years.

Project ed emiss ions for non

- road vehicles and equipment except for marine, air , and railway locomotives were developed using NMIM2008 (version NMIM20090504), which used NONROAD2008a model (version July 2009). This version of NONR OAD2008a is USEPA’s most recently approved emissions estimation tool for the above

- mentioned nonroad sources.

Projected emissions for non

- point (area), marine, air, and railway locomotive sources were calculated using the most updated practices and input s, such as the demographic forecasts (population, household, and employment projections), endorsed by the Baltimore Regional Transportation Board (BRTB) . BRTB is the federally designated Metropolitan Planning Organization ( MPO) for the Baltimore region

.
A more detailed accounting of the 2017 and 2025 projection inventories are contained in Appendix B and Appendix C , respectively. A description of the procedures and methods used to develop the attainment year inventory is contained in Appendix D . A detai led emission inventory spreadsheet is presented in Appendix E

.

4.2.1 Summary

Table 4

- 2 : Growth Assumptions Used in Emission Inventory Projections

Category Level of Detail Source

Stationary/Industrial Source Growth Source/Unit/Process Specific AEO State/Federal Requirements

Area and Non

- Road Mobile Source Growth Category Specific Cooperative Forecast

Vehicle Miles Traveled Growth Jurisdiction

- specific Baltimore Metropolitan Council and MDE

4.3 Demonstration of Maint enance

States may demonstrate maintenance of the NAAQS by showing that future emissions of a pollutant or its precursors will not exceed the level of the attainment inventory. The demonstration should be for a period of 10 years following the redesignatio n. The projectedBaltimore, MD PM 2.5 Maintenance Plan Page 12 inventory should consider future growth, including population and industry. It should also be consistent with the attainment inventory, and it should document data inputs and assumptions. All elements of the demonstration should be cons istent with current USEPA guidance. Enforceability through regulations must also be demonstrated.

Any assumptions concerning emission rates must reflect permanent, enforceable measures. States generally cannot take credit for reductions unless there are regulations in place requiring those reductions or the reductions are otherwise shown to be permanent. Therefore, states are expected to maintain the implemented control strategy despite redesignation to attainment unless such measures are shown to be un necessary for maintenance or are replaced with measures that achieve equivalent reductions. Emission reductions from source shutdowns can be considered permanent and enforceable to the extent that those shutdowns have been reflected in the SIP and all app licable permits have been modified accordingly.

4.3.1 Projected Emissions b elow Attainment Year Emissions

Table 4

- 3 demonstrates how future emissions of SO 2 , NO X , and primary PM 2.5 will not exceed the levels of the Balti more, MD attainment inventory for a minimum of 10 years following redesignation. The projected emissions reflect the expected annual emissions based on the best available growth rates and projections, as noted in Table 4

- 3

.

Table 4

- 3 : Baltimore, MD NO x , S O 2 , & Primary PM 2.5 Emissions , 2007 to 2025

S OURCE CATEGORY BNAA BNAA BNAA

NO X SO 2 PM 2.5 - PRI

2007 2017 2025 2007 2017 2025 2007 2017 2025

Point 35,553.82 22,1 70.09 22,300.20 98,424.42 23,818.42 23,788.38 8,973.22 9,286.94 9,500.15

Area 4,732.44 4,964.77 5,167.45 2,315.81 305.16 315.02 6,701.79 5,116.71 5,197.30

Non

- Road Mobile 27,168.92 17,213.18 12,785.60 2,383.98 353.69 283.18 1,540.88 959.79 720.31

On

- Roa d Mobile 49,140.10 2 4

, 910

. 01 1 7
, 995 .80 385.300 236.87 233.06 1789. 28 1010.31 786.75

TOTAL 116,595.28 6 9

, 258

. 05 5 8

, 249 .06 103,509.50 24, 714.15 24, 619

. 64 19,005.19 16, 373.75 16, 204.50

∆ (20 17

- 20 0 7)

- 47 , 3 37. 25

- 78, 795

. 39

- 2, 631

. 42

∆ ( 2025

- 2007 )

- 58,346.24

- 78, 889.90

- 2,8 00

. 67

4.3.2 Control Measures for Maintenance of Good Air Quality

Point, non

- road, and on

- road emission projections for 2017 and 2025 include a variety of control strategies that will reduce emissions of PM 2.5 , NO X , and SO 2 in the future years. The sections below describe the major control programs in each category. Many of these programs are federal programs that are enforced on a regional or national level. In cases where the programs are delegated programs or state pro grams, the State of Maryland commit s to the continuation of each program, to include compliance and enforcement mechanisms as appropriate to ensure that reductions assumed in 2017 and 2025 will be achieved.Baltimore, MD PM 2.5 Maintenance Plan Page 13 4.3.2.1 Point Sector Controls

Point source emissions of PM 2.5 , SO 2 , and NO X are dominated in the Baltimore, MD region by the emissions from electrical generating units (EGU). The EGUs located in the Baltimore, MD nonattainment area are the Herbert A. Wagner Station in Anne Arundel County (ORIS 1554) ; the Bran don Shores Station in Anne Arundel County (ORIS (602) ; Riverside in Baltimo re County (ORIS 1559), C.P. Crane Station in Baltimore County (ORIS 1552); the Perryman Power Plant in Harford County (ORIS 1556), and the Westport Station in Baltimore City (ORIS 1 560). These facilities are subject to a variety of federal and state

- enforceable mechanisms that have reduced emissions at these units since 2007 and will continue to reduce emissions into the future.

4.3.2.1.1 Maryland Healthy Air Act

The Maryland Health y Air Act (HAA) regulations became effective on July 16, 2007 and required reductions in NO X , SO 2 , and mercury emissions from large coal burning power plants in Maryland. Specifically, this program limits emissions from the Brandon Shores Generating Plant, the Her bert A. Wagner Generating Plant, and the C.P. Crane Generating Plant, all of which are coal

- fired power plants located within the Baltimore, MD nonattainment area. Emission reductions from the HAA are phased. The first phase required reductions in the 20 09/2010 timeframe. The second phase of emission controls will occur in the 2012/2013 time frame. At full implementation, the HAA will reduce NO X emissions for the affected units by approximately 65 percent from 2002 levels and SO 2 emissions by approximat ely 8 0 percent from 2002 levels resulting in the removal of approximately 15,000 and 75,000 tons per year of NO X and SO 2 , respectively . The first phase of the HAA was successfully implemented, and the second phase of the program is expected to be implemen ted in a timely manner.Baltimore, MD PM 2.5 Maintenance Plan Page 14 Figure 4

- 1 : Large EGUs in the Baltimore, MD Area

4.3.2.1.2 Future Point Source Emission Reduction Programs

Three federal regulations may reduce emissions of SO 2 even further than is alre ady estimated by the 2017 and 2025 inventory shown in Table 4

- 3 for the Baltimore, MD area. These rules

were not yet finalized as of the time of the development of the pr ojection inventory and therefore were not c onsidered in the 2017 and 2025 estimates included in this document. If these regulations are finalized, each should prompt significant further reductions, both within and outside the Baltimore, MD area.

• Mercury and Air Toxics Rule: On February 16, 2012, USEPA published the final Mercury and Air Toxics Rule to reduce emissions of toxic air pollutants from new and existing coal and oil

- fired EGUs (Federal Register, Vol. 77, No. 32, 2/16/2012) . The rule establish es numerical emission limits for hydrogen ch loride (HCl) as a surrogate for toxic acid gases or alternative standards for SO 2 . USEPA has estimate d that this rule will affect approximately 1,200 coal

- fired units nationwide and w ill reduce SO 2 emissions from power plants by 55 percent. E xisting sour ces may be required to demonstrate compliance with applicable standards by 2015.

• 2010 SO 2 NAAQS: On June 2, 2010, USEPA strengthened the primary NAAQS for SO 2 by revising the primary SO 2 standard to 75 ppb averaged over one hour. This short term standard is significantly more stringent than the revoked standards of 140 ppb averagedBaltimore, MD PM 2.5 Maintenance Plan Page 15 over 24 hours and 30 ppb averaged annually. Under the new standard’s proposed guidance, facilities emitting more than 100 tpy of SO 2 , many of which are EGUs, will be required to demonstrate compliance with the standard no later than 2017.

• Industrial/Commercial/Institutional (ICI) Boiler Maximum Achievable Control Technology (MACT) Standard: USEPA finalized the revised ICI Boiler MACT on February 21, 2011, although portions of the rule are under reconsideration. US EPA estimates that implementation of the revised rulemaking will reduce emissions nationwide from major source boilers and process heaters by 47,000 tpy of PM, 440,000 tpy of SO 2 , and 7,000 tpy of VOCs.

4.3.2.2 Nonroad D iesel Emission Reduction Programs

Under 40 CFR Part 89, U.S. EPA adopted standards for emissions of NO X , hydrocarbons, and carbon monoxide (CO) from several groups of nonroad engines, including industrial spark

ignition engines and recreational nonroad ve hicles. Industrial spark

- ignition engines power commercial and industrial applications and include forklifts, electric generators, airport baggage transport vehicles, and a variety of farm and construction applications. Nonroad recreational vehicles incl ude snowmobiles, off

- highway motorcycles, and all

- terrain vehicles. These rules were initially effective in 2004 and will be fully phased in by 2012.

The nonroad diesel rule sets standards that reduced emissions by more than 90 percent from nonroad diesel equipment and, beginning in 2007, the rule reduced fuel sulfur levels by 99 percent from previous levels. The reduction in fuel sulfur levels applied to most nonroad diesel fuel in 2010 and will apply to fuel used in locomotives and marine vessels in 201 2.

This program will continue to provide emission reductions of NO X as new equipment is purchased and older equipment is scrapped. Additionally, SO 2 emissions from the combustion of nonroad diesel fuel and locomotive and marine diesel fuel will continu e to be reduced through 2012.

4.3.2.3 On

- Road Emission Reduction Programs

In the 2007 heavy

- duty highway rule, which is codified in 40 CFR Part 86, Subpart P, USEPA set a PM emission standard of 0.01 grams per brake horsepower

- hour (g/bhp

- hr) for new heavy

- duty e ngines. This standard took full effect for diesel engines in the 2007 model year. This rule included the following standards for NO X and non

- methane hydrocarbons (NMHC) : 0.20 g/bhp

- hr and 0.14 g/bhp

- hr, respectively. These diesel engine NO X and NMHC sta ndards were successfully phased in together between 2007 and 2010. The rule also required that sulfur in diesel fuel be reduced to facilitate the use of modern pollution control technology on these trucks and buses. USEPA required a 97 percent reduction in the sulfur content of highway diesel fuel

-- from levels of 500 parts per million (ppm) for low sulfur diesel to 15 ppm for ultra

- low sulfur diesel. The reductions in sulfur content engendered similar reductions in SO 2 emissions. These requirements we re successfully implemented on the timeline in the regulation.Baltimore, MD PM 2.5 Maintenance Plan Page 16 The Tier 2 vehicle and gasoline sulfur program, as codified in Subpart H of 40 CFR Part 80, 40 CFR Part 85, and 40 CFR Part 86, became effective in the 2005 model year. This program for flee t averaging of on

- road vehicles is modeled after the California LEV II standards. The Tier 2 program allows manufacturers to produce vehicles with emissions ranging from relatively dirty to very clean, but the mix of vehicles that a manufacturer sells eac h year must have average NO X emissions below a specified value

. Mobile emissions continue to show reductions from this program as motorists replace older, more polluting vehicles with cleaner vehicles.

In additional to the federal Tier 2 program and the federal 2007 heavy duty highway rule, the State of Maryland ha s instituted enhanced vehicle emissions inspection and maintenance (enhanced I/M) requirements. The requirements involve mandating regional vehicle emission I/M programs that are stricter tha n basic programs, as required under Sections 182 and 202 of the CAA. Before 1994, basic automobile emissions testing checked only tailpipe emissions while idling and sometimes at 2,500 rpm. Enhanced I/M procedures include the use of On Board Diagnostic ( OBD) system evaluations, a wider range of vehicles tested, and may include a dynamometer (treadmill) test that checks the car’s emissions under driving conditions. The OBD evaluations provide a more complete inspection, checking for excess evaporative emi ssions and other issues that might affect emissions from the vehicle.

4.4 Commitment to Operate Air Quality Monitoring Network

Once an area has been redesignated, the states must continue to operate an appropriate air quality monitoring network in accordance with 40 CFR Part 58, to verify the area's attainment status. In cases where measured mobile source parameters (for example, vehicle miles traveled) have changed over time, the state may also need to perform a saturation monitoring study to determine the n eed for and location of additional permanent monitors.

The State of Maryland operate s a monitoring network that is significantly more robust than required by federal regulation. Figure 4

- 2 Error! Reference source not found. provides a map showing the locations of the various PM 2.5 monitoring sites in the current network.

The State of Maryland commit s to operating and maintaining an air quality network for PM 2.5 monitoring t hat meets all federal requirements. Should measured mobile source parameters change significantly over time, the State of Maryland will perform a saturation monitoring study to determine the need for and location of PM 2.5 monitors.Baltimore, MD PM 2.5 Maintenance Plan Page 17 Figure 4

- 2 : Baltimore, MD PM2.5 Monitoring Sites

4.5 Legal Authority

– Verify Continued Attainment

States must ensure that they have the legal authority to implement and enforce all measures necessary to attain and maintain the NAAQS. Sections 110(a)(2)(B) and (F) of the CAA, and regulations promulgated in 40 CFR 51.110(k) suggest that one such measure is the acquisition of air quality and source emission data to demonstrate attainment and maintenance. The submittal must indica te how the states will track the progress of the maintenance plan. This is necessary due to the fact that the emission projections made for the maintenance demonstration depend on assumptions of point, area, and mobile source growth.

One option for track ing the progress of the maintenance demonstration would be for the states to periodically update the emissions inventory. In this case, the maintenance plan should specify the frequency of any planned inventory updates. Such an update could be based, in part, on the annual update of the USEPA Aerometric Information Retrieval System (AIRS) and could indicate new source growth and other changes from the attainment inventory (such as changes in vehicle miles traveled or in traffic patterns). As an alternati ve to a complete update of the inventory, states may choose to do a comprehensive review of the factors thatBaltimore, MD PM 2.5 Maintenance Plan Page 18 were used in developing the attainment inventory to show no significant change. If this review does show a significant change, states should then perform an update of the inventory.

The State of Maryland ha s the legal authority to implement and enforce specified measures necessary to attain and maintain the NAAQS. Key regulatory elements that the S tate will keep in place to maintain attainment are as follows:

• Shutdown requirements, permitting requirements, and regulatory requirements

• I/M program requirements.

In addition to maintaining key elements of its regulatory program, the state will acquire ambient and source emission data to track attainm ent and maintenance. The state will track the progress of the maintenance demonstration by periodically updating the emissions inventory. This tracking will consist of annual and periodic evaluations. The annual evaluation will consist of checks on key emissions trend indicators such as the annual emissions update of stationary sources, the Highway Performance Monitoring System (HPMS) vehicle miles traveled data reported to the Federal Highway Administration, and other growth indicators. These indicator s will be compared to the growth assumptions used in the plan to determine if the predicted versus the observed growth remains relatively constant. The state will also develop and submit to the USEPA comprehensive tracking inventories every three years or as required by federal regulation during the maintenance plan period.

4.6 Transportation Conformity and Mobile Source Emissions Budgets

Transportation conformity is a way to ensure that federal funding and approval are given to those transportation activiti es that are consistent with air quality goals. Transportation activities should not worsen air quality or interfere with an area’s continued compliance in regards to the 1997 PM 2.5 NAAQS. The federal transportation conformity rule is codified in 40 CFR P art 93, subpart A, entitled Determining Conformity of Federal Actions to State or Federal Implementation Plans (transportation conformity rule). This rule applies to areas designated as nonattainment for one or more NAAQS or that have been redesignated to attainment with federally approved air quality maintenance plans.

Transportation confo r m ity is required under CAA S ection 176(c) (42 U. S .C. 7506(c)) to ensure that transportation plans, transportation i m p r ove m ent progra m s (TIPs) and federally supported highway tr a nsit pr o j e c t acti v ities a re consistent with (“conform to”) the purpose of the state air quality i m ple m entation plan (SI P ). “ Confo r m to the purpose of t h e SIP ” means that transportation acti v ities will not cause new air quality violations, worse n exi s ting violations, or delay ti m ely attain m ent of the relevant NAAQS or any interim m ilestones. These require m ents are found in Clean Air Act S ection 176(c)(B)(i), (ii), and (iii ) , which
states : “ Conformity to an implementation plan means

— ... That such a cti v it i es will not cause or contribute to any new violation of any standard in any area; increa s e the f requency or severity of any existing violation of any stand a rd in any area; or delay ti m ely attain m ent of any standard or any required interim e m i ssions reductions or other m ilestones in any area.” The federal transportation conformity rule is codified in 40 CFR Part 93, subpart A, entitled Determining Conformity of Federal Actions to State or Federal Implementation PlansBaltimore, MD PM 2.5 Maintenance Plan Page 19 (transportation conformity rule). Transportation confo r m ity applies to areas t h at are designated non a ttain m ent, and those areas redesignated to attain m ent after 1990 (“ m aintenance areas”) for transportation

- related criteria pollutants: Carbon monoxide (CO), ozone, nitrogen dioxide (N O 2 ) a nd particul at e m atter ( PM 2 .5 and P M 10 ).

As stated in 40 CFR 93.102, for P M 2 .5 areas, transportation confo r m ity appli e s to directly

e m itted P M 2. 5
. In additi o n, it ap p lies to NO x in these areas, unless both the USEPA Regional Ad m i nistrator and the di rect o r of the state air agency have m a de a finding that transportation

related e m issions of N O x within the nonattain m e nt area are n o t a significant c ontributor to the PM 2 .5 nonattain m ent proble m . Such a finding has not been m ade for the Baltimore, MD annual PM 2 .5 nonattain m e nt area. Therefore, m obile source emission budgets for both PM 2 .5 and NO x are proposed in this m aintenance plan.

40 CFR 93.102 further s p ecifies that in P M 2 .5 areas, transportation confor m ity applies to VOC, SO 2 , and/or ammonia as P M 2 .5 pre cursors, as well as re

- entrained road dust, if the USEPA Regional Ad m i nistrator or the director of the state air agency has m ade a finding that transportation

- related e m issions of any of these precursors or re

- entrai n ed road dust within t h e

n onatt a in m ent a r e a are a significant contr i b u tor to the PM 2 .5 nonattain m ent area. Such a finding has not been m ade for any of these precursors or for re

- entr a ined road dust for the Baltimore, MD PM 2 .5 nonattainment area. For these pollutants and precursors, the highway contribution to those emissions may be insignificant. In that case, the transportation conformity rule allows such pollutants and precursors to be exempt from conformity analysis under certain circumstances:

40 CFR93.109 (k) Areas with insignificant mot or vehicle emissions. Notwithstanding the other paragraphs in this section, an area is not required to satisfy a regional emissions analysis for §93.118 and/or §93.119 for a given pollutant/precursor and NAAQS, if EPA finds through the adequacy or approval process that a SIP demonstrates that regional motor vehicle emissions are an insignificant contributor to the air quality problem for that pollutant/precursor and NAAQS. The SIP would have to demonstrate that it would be unreasonable to expect that such a n area would experience enough motor vehicle emissions growth in that pollutant/precursor for a NAAQS violation to occur. Such a finding would be based on a number of factors, including the percentage of motor vehicle emissions in the context of the total SIP inventory, the current state of air quality as determined by monitoring data for that NAAQS, the absence of SIP motor vehicle control measures, and historical trends and future projections of the growth of motor vehicle emissions. . .

For this reason , VOC, SO 2 , ammon i a and re

- entrained road dust are not addressed in this

m aintenance plan for transportation confo r m ity purposes. In fact the State of Maryland is herein making a finding that regional highway emissions of SO 2 are insignificant contributor s to the PM 2.5 air quality of the Baltimore, MD area. The finding will become final if USEPA concurs and approves this maintenance plan. This finding is due to the fact that the regional highway SO 2 emissions inventory constitutes a very small fraction o f the overall emissionsBaltimore, MD PM 2.5 Maintenance Plan Page 20 inventory in the Baltimore, MD area as shown in Table 4

- 4

.

Table 4

- 4 : Comparison of SO 2 Emissions from On

- Road Sources to the Total SO 2 Inven tory

Year BNAA Total SO2 Emissions tpy On

- Road SO2 Emissions tpy % On

- Road SO2 Emissions
2007 103,509.5 4 385.3 4 0.37%

2017 24, 714

. 15 236.87 0.96 %

2025 24, 619

. 64 233.06 0.95 %

Additionally, PM 2.5 air quality in the region is good and getting better. Figure 4

- 3 provide s the regional trends in PM 2.5 air quality for the federal reference method monitoring sites. The design value for the 1997 PM 2.5 annual standard for the Baltimore, MD region is 11.0 μg/m 3 for years 2010

- 2012

. The contribution of on

- road mobile SO 2 emissions remains proportionally small in both the interim year and projection year. Therefore, it is highly unlikely that any increase in growth a ssumptions or activity data, beyond those already included in the on

- road SO 2 emissions estimation methodology, could account for an exceedance or violation of the 1997 PM 2.5 NAAQS annual standard. For these same reasons, the likelihood of on

- road emissio ns of SO 2 contributing to an exceedance of the 1997 PM 2.5 24

- hour standard is even smaller.Baltimore, MD PM 2.5 Maintenance Plan Page 21 Figure 4

- 3 : Baltimore, MD Annual PM 2.5 Trend 5

4.6.1 Budget Level for On

- Road Mobile Source Emissions

As part of th e development of this SIP revision, the MDE formally establishes annual mobile source emissions budget for NO X and PM 2.5 . The mobile emissions budgets are based on the projected mobile source emissions accounting for all mobile control measures. This budge t will be the benchmark used to determine if the region's twenty

- year long

- range transportation plan ( L RTP) and three

- year transportation improvements program (TIP) conform to the SIP. These budgets represent the level of mobile source emissions that can b e emitted in the area while supporting the air quality plan

For NO x and PM 2.5 , initial, interim and final mobile source budgets have been developed to accommodate the fluctuation in mobile source emissions estimates over time. In the near term, mobile so ur ce emissions are rapidly decreasing due to the implementation of the NLEV, Tier 2, and Heavy

- Duty Diesel Vehicle ( HDDV ) rules, even as vehicle miles travelled (VMT) continues to grow. Once these rules have sufficiently penetrated the fleet, growth in VM T becomes more pronounced and eventually pushes mobile emissions back on an upward trend.

5 PM2.5 Design Values, MDE Ambient Air Quality Monitoring ProgramBaltimore, MD PM 2.5 Maintenance Plan Page 22 Table 4

- 5 contains the motor vehicle emissions budgets for the Baltimore area.

Table 4

- 5 : Baltimore, MD Maintenanc e Plan On

- Road Mobile Source Emissions Budgets

Year NO X On

- Road Emissions Budget (tpy) PM 2.5 On

- Road Emissions Budget (tpy)
2007 Attainment Year 49,140.10 1,789. 28
2017 Interim Budget 29,892.01 1,218.60
2025 Final Budget 21,594.96 1,051.39

The abo ve budgets for the Baltimore area, agreed upon as part of the interagency consultation process, include the emission estimates calculated for 2017 and 2025 with an additional margin of safety allocated to PM 2.5 and NO X in 2017 and 2025. Safety margins are explicitly defined and provided for in EPA’s Conformity Regulations, and the use of such safety margins is common practice in maintenance plans approved by EPA. Because of significant declines projected in both precursor NO X and primary PM 2.5 emissions f rom motor vehicles over the 2007 through 2025 period of the maintenance plan, these recommended safety margins can be included in the plan while still ensuring maintenance of the PM 2.5 standard for the region.

Table 4

- 6 shows the maintenance of the PM2. 5 standard with the margin of safety included in the on

- road mobile emissions.

Table 4

- 6 : Baltimore, MD NO x , SO 2 , & Primary PM 2.5 Emissions , 2007 to 202 5 with Mobile Budgets

S OURCE CATEGORY BNAA BNAA BNAA

NO X SO 2 PM 2.5 - PRI

2007 2017 2025 2007 2017 2025 2007 2017 2025

Point 35,553.82 22,170.09 22,300.20 98,424.42 23,818.42 23,788.38 8,973.22 9,286.94 9,500.15

Area 4,732.44 4,964.77 5,167.45 2,315.81 305.16 315.02 6,701.79 5,116.71 5,197.30

Non

- Road Mo bile 27,168.92 17,213.18 12,785.60 2,383.98 353.69 283.18 1,540.88 959.79 720.31

On

- Road Mobile 49,140.10 29,892.01 21,594.96 385.300 236.87 233.06 1789. 28 1 218.60 1,051.39

TOTAL 116,595.28 74

, 240

. 05 61

, 848

. 22 103,509.50 24, 714.15 24, 619

. 64 19,005.19 16, 582

. 04 16, 469

. 14

∆ (2017

- 2007)

- 4 2 , 3 55

. 25

- 78, 795

. 39

- 2, 423

. 13

∆ (2025

- 2007)

- 5 4,747.08

- 78, 889.90

- 2, 536.03Baltimore, MD PM 2.5 Maintenance Plan Page 23 4.7 Contingency Measures

Section 17 5 (A) of the Clean Air Act specifies the require m ents for m aintenance plans. In addition to providing a plan for the maintenance of the NAAQS for at least ten (10) years after the redesignation, the plan shall also include a list of cont i ngency m easures to correct any violation of the fine particulate m atter NAAQS a f ter redesignation to attai n m ent. The plan should also provide a commi t m ent to sub m it a revised m aintenance plan eight years after redesignation to ensure cont i nued m aintenance for the next ten year m aintenance period.

Contingency m easures are to be used to furth e r reduce e m ission s if a violation of the fine particulate m atter NAAQS occurs after redesignation to attain m e nt. W hile these m easures do not need to be fully adopted by the Maryland Department of the Environment prior to the occurrence of a NAAQS violation, the contingenc y m easures are expected to be i m ple m ented as expeditiously as possible once a t r iggering event occurs. The m aintenance plan m ust identify the trig g ers that deter m ine when contin g ency m easures will b e a d opted, and the

m easures that the state will c o nsider.

The maintenance plan must include contingency measures, as necessary, to promptly correct two future situations. The first situation is an inventory estimate that indicates the Baltimore, MD area had actual emissions of either SO 2 , NO X , or PM 2.5 in any future year that were greater than that of the attainment year inventories listed in Table 4

- 1 . The second situation is any NAAQS violation that occurs after redesignation of an area. The plan should include

mea s ures to be adopted, a schedule and procedures for adoption and implementation, and a specific time limit for action. Specific triggers that would put the plan into motion must be identified. This plan is considered to be an enforceable part of the SIP a nd should ensure that the contingency measures are adopted explicitly once they are triggered.

The ability of the Baltimore, MD n onattainment area to stay in compliance with the 1997 PM 2.5 NAAQS depends at least partially on the level of NO X , SO 2 , and pri mary PM 2.5 emissions in the region. Emissions are projected to stay well below the 2007 attainment year levels, through 2025. However, if emissions increase, the area may experience a PM 2.5 violation. To address this unlikely situation, the State of Mary land ha s developed a contingency plan. The situations described below would trigger the implementation of the contingency measures as described in Section 4.7.1 , Section 4.7.2 , or Section 4.7.3

.

• Annual actual emissions of SO 2 , NO X , or PM 2.5 exceeding the attainment year inventories in Table 4

- 1

.

• Any annual exceedance (annual avera ge for one year at any federal reference method monitor in the Baltimore, MD no nattainme nt area) of 15.0 μg/m 3 or greater.

• Any violation (three year average of the annual average at any federal reference method monitor in the Baltimore, MD nonattainment area) of 15.0 μg/m 3 or greater.Baltimore, MD PM 2.5 Maintenance Plan Page 24 4.7.1 Exceedance of the Attainment Year Emissions Inventory

Sh ould any future year emissions inventory data indicate that the Baltimore, MD area’s total emissions of SO 2 , NO X , or PM 2.5 exceeded the levels in Table 4

- 1 , the State of Maryland, would first undertake an audit to determine whether inventory refinements were needed. This audit may include, but would not be limited to, a determination that appropriate models, control strategies, monitoring strategies, planning assumptions, industrial throughput, and production data were used in the attainment year and future year estimates. If this audit does not reconcile the originally estimated emissions exceedances, then the State of Maryland commit s to implementing one or more of the programs listed in Table 4

- 7 so that future total emission estimates for the Baltimore, MD area will not exceed those listed in Table 4

- 1

.

4.7.2 Near Term Contingency Measures for Air Quality Exceedances

T he Maryland Healt hy Air Act’s second phase

, began in January 2013

, will provide significant emissions reductions of precursors to PM 2.5 . This regulation, included in COMAR 26.11.27, requires additional SO 2 reductions beginning January 1, 2013, for applicable coal

fired powe r plants in Maryland. These applicable units include coal

- fired boilers located at the C.P. Crane Power Plant, the Herbert A. Wagner Power Plant, and the Brandon Shores Power Plant in the Baltimore, MD nonattainment area. In 2013 the allowable tonnage ca p for th e units at these facilities was reduced from 2 3

, 407 tpy of SO 2 to 1 7
, 926 tpy of SO 2 , a reduction of over 23 percent. This regulation has the added benefit of already being codified; these reductions began in January of 2013 without f urther action by the State of Maryland.

4.7.3 Long Term Contingency Measures

I f an annual exceedance of 15.0 μg/m 3 occurs after January 1, 2013, the State of Maryland commit s to implementing one of the programs listed in Table 4

- 7 to garner additional emission reductions for air quality impro vement.

If an annual violation occurs after January 1, 2013, the State of Maryland commit s to implementing two or more of the programs listed in Table 4

- 7 to garner additional emission reductions for air quality i mprovement.

Table 4

- 7 : Contingency Control Measures

PM 2.5 Reasonable Available Control Measure (RACM) Determination

NO X RACM Determination
Non Road Diesel Emission Reduction Strategies

Low Sulfur Home Hea ting Oil Requirements
Alternative Fuel and Diesel Retrofit Programs for Fleet Vehicle Operations
Concrete Manufacturing

– Wet Suppression Upgrade RequirementsBaltimore, MD PM 2.5 Maintenance Plan Page 25 4.7.4 Contingency Measure Implementation Schedule

The State of Maryland commit s to the implementatio n of any long term contingency measure on the following schedule:

• Schedule onset: notification received from USEPA that a contingency measure must be implemented, or three months after quality assured data determine that an exceedance or violation occurred within the previous year.

• Applicable regulation or program to be adopted six months after this date.

• Applicable regul ation to be implemented six months after adoption.

• Compliance with regulation, or full program implementation, to be achieved within 12 months of adoption.Baltimore, MD PM 2.5 Maintenance Plan Page 26 Appendices

Appendix A

– 2007 Attainment Year Inventory Appendix A

- 1

– 2007 Point Source Emissions Appendix A

- 2

– 2007 Area Source Emissions Appendix A

- 3

– 2007 On

- Road Mobile Source Emissions Appendix A

- 4

– 2007 Off

- Road Mobile Source Emissions

Appendix B

– 2017 Interim Year Projection Year Inventory Appendix B

- 1

– 2017 Point Source Emissions Appendi x B

- 2

– 2017 Area Source Emissions Appendix B

- 3

– 2017 On

- Road Mobile Source Emissions Appendix B

- 4

– 2017 Off

- Road Mobile Source Emissions

Appendix C

– 20 25 Projection Year Inventory Appendix C

- 1

– 20 25 Point Source Emissions Appendix C

- 2

– 20 25 Area Sou rce Emissions Appendix C

- 3

– 20 25 On

- Road Mobile Source Emissions Appendix C

- 4

– 20 25 Off

- Road Mobile Source Emissions

Appendix D

– Emission Inventory Documentation

Appendix E

– Emission Inventory Detail Spreadsheet

Appendix F

– Onroad Mobile MOVES Docu mentation, Conformity Data and Budgets

Appendix G

– Information Addressing NRDC v. EPA, Case No. 08

- 12150

## MARYLAND DEPARTMENT OF THE ENVIRONMENT 1800 Washington Boulevar d • 

### Baltimore MD 21230 410

- 537

- 3000 • 

### 1

- 800

- 633

- 6101 • 

### www.mde.state.md.us

Recycled Paper www. mde.state.md.us TTY Users 1

- 800

- 735

- 2258 Via Maryland Relay Service Robert M. Summers, Ph.D. Secretary Martin O’Malley Governor
Anthony G. Brown Lieutenant Governor Notice of Public Hearing on Air Quality Plan

The Maryland Department of the Environment (MDE) gives notice of a public hearing concerning the Baltimore Nonattainment Area PM 2.5 Redesignation Request and Maintenance Plan.

A public hearing will be hel d o n Monday , October 7, 2013, at the Maryland Department of the Environment, 1800 Washington Boulevard, Baltimore, Maryland 21230

– First Floor Conference Room

– 1 :00 P.M.

The State of Maryland requests that the United States Environmental Protection Agen cy (USEPA) redesignate the Baltimore, MD 1997 fine particulate (PM 2.5 ) nonattainment area to attainment for this standard pursuant to the provisions under § 107 of the federal Clean Air Act (CAA). Since the designations for the National Ambient Air Quality Standards (NAAQS) for this pollutant were published (Federal Register, Vol. 70, No. 3, 1/5/2005), the area’s PM 2.5 air quality has improved due to permanent and enforceable emission reductions. Air quality in the area is significantly better than required by this standard. Due to the improvement in PM 2.5 air quality, the USEPA finalized a clean data determination for the Baltimore area on May 22, 2012 (Federal Register, Vol. 77, No. 99, 5/22/2012). The State of Maryland is also requesting that USEPA concur rently approve, as a revision to the state implementation plan (SIP) for each state, the related § 175A maintenance plan. This plan ensures that good PM 2.5 air quality will be maintained through 2025.

The public hearing will be held as required by federal law (Clean Air Act at 42 U.S.C. 7410 (a) and 40 CFR 51.102). After consideration of comments received, the plan will be finalized and submitted to the United States Environmental Protection Agency (EPA) for approval.

The proposed plan document has been m ade available on the Maryland Department of the Environment's website at http://www.mde.state.md.us/programs/Air/AirQualityPlanning/Pages/programs/airprograms/air_planning/index.aspx Note : the public library systems in the region can be used for Internet access to view the document.

Copies of the document can be viewed at the offices of the Maryland Department of the Environment, Air and Radiation Management Administration, 1800 Washington Boulevard, Suite 730, Baltimore, Maryland. For more information, contact Mary Jane Rutkowski at (410) 537

- 3240.

Comments may be sent to M ary Jane Rutkowski , Maryland Department of the Environment, Air and Radiation Management Administration, 1800 Washington Boulevard, Suite 730, Baltimore, MD, 21230; emailed to MaryJa ne.Rutkowski@Maryland.gov ; or faxed to (410) 537

- 3203, attn: Mary Jane Rutkowski . Comments must be received by 5:00 P.M. on October 7 , 2013, or be submitted at the hearing.

Persons in need of special accommodations should contact the Department's Office of Fair Practices at (410) 537

- 3964 at least five (5) business days in advance of the hearing. TTY users should contact the Department through the Maryland Relay Service at 1

- (800) 735

- 2258.

For more information, contact Mary Jane Rutkowski at (410) 537

- 3240 (Toll free in Maryland call 1

- (800) 633

- 6101 ext. 3240)

, or via email at MaryJane.Rutkowski@Maryland.gov

.

## MARYLAND DEPARTMENT OF THE ENVIRONMENT 1800 Washington Boulevard  Baltimore MD 21230 410-537-3000  1-800-633-6101

Robert M. Summers, Ph.D

. Secretary

Recycled Paper www.mde.state.md.us TTY Users 1-800-735-2258 Via Maryland Re lay Service Martin O’Malley Governor

Anthony G. Brown Lieutenant Governor

September 6, 2013

CERTIFICATE OF PUBLICATION

This is to certify that public hearing notices concerning "PM2.5 Re designation Requests & Maintenance Plans" for the Baltimore and Washington County Nonatta inment Areas were published on MDE’s web site on September 6, 2013. They will remain posted on the at least site until October 9, 2013. The notices in full with links to supporting docu ments may be found in the following web address:

http://www.mde.state.md.us/program s/Air/AirQualityPlanning/Pages/ programs/airprograms/air_planning/index.aspx

Web publication of the notices was at the request of Mary Jane Rut kowski of the Air and Radiation Management Administration of MDE.

By:

DIANA ALEGRE MDE Webmaster

Attachments:

Copy of web page as published.Air Quality Planning

http://www.mde.state.md.us/programs/Air/AirQualityPlanning/Pages/programs/airprograms/air_planning/index.aspx [9/6/2013 2:21:20 PM] Sign In

Air and Radiation

Air Quality

Planning Air Quality Planning Program

Maryland's Air Quality Planning Program (AQPP) writes state implementation plans and regulations to reduce emissions and achieve the National Ambient Air Quality Standards (NAAQS) for six "criteria" air pollutants : ground-level ozone, particulate matter, lead, carbon monoxide, nitrogen dioxide, and sulfur dioxide. The AQPP also implements federal, regional, local, and state greenhouse gas emissions reduction programs, including implementing the requirements of the Maryland Greenhouse Gas Emissions Reduction Act of 2009 and managing Maryland's involvement in the Regional Greenhouse Gas Initiative (RGGI).

The AQPP consists of three divisions covering its different program areas:

(1) Planning and Policy (2) Regulation Development (3) Climate Change

Planning and Policy: State Implementation Plans

The Planning and Policy Division develops air quality plans, also called state implementation plans, which are designed to attain and maintain the National Ambient Air Quality Standards, and to prevent significant deterioration of air quality in areas cleaner than the standards.

The state implementation plans are listed below in chronological order with the latest documents first. Some SIPs have many appendices, but each distinct SIP on the list is identified with the word “Document” followed by the individual SIP’s name below that and any appendices subsequently.

Note: Maryland's State Implementation Plans are viewable in Adobe Acrobat Reader (pdf) format. To view the documents, you will have to download the Adobe Acrobat Reader

.

New! Public Hearing concerning the Baltimore Nonattainment Area PM2.5 Redesignation Request and Maintenance Plan

Redesignation Request

Maintenance Plan Appendices

A public hearinig will be held on Monday, October 7, 2013 at the Maryland Department of the Environment, 1800 Washington Boulevard, Baltimore, Maryland 21230 -- First Floor Conference Room -- 1:00 P.M.

The State of Maryland requests that the United States Environmental Protection Agency (USEPA) redesignate the Baltimore, MD 1997 fine particulate (PM2.5) nonattainment area to attainment for this standard pursuant to the provisions under § 107 of the federal Clean Air Act (CAA). Since the designations for the National Ambient Air Quality Standards (NAAQS) for this pollutant were published (Federal Register, Vol. 70, No. 3, 1/5/2005), the area’s PM2.5 air quality has improved due to permanent and enforceable emission reductions. Air quality in the area is significantly better than required by this standard. Due to the improvement in PM2.5 air quality, the USEPA finalized a clean data determination for the Baltimore area on May 22, 2012 (Federal Register, Vol. 77, No. 99, 5/22/2012). The State of Maryland is also requesting that USEPA concurrently approve, as a revision to the state implementation plan (SIP) for each state, the related § 175A maintenance plan. This plan ensures that good PM2.5 air quality will be maintained through 2025.

The public hearing will be held as required by federal law (Clean Air Act at 42 U.S.C. 7410 (a) and 40 CFR 51.102). After consideration of comments received, the plan will be finalized and submitted to the United States Environmental Protection Agency (EPA) for approval. Note : the public library systems in the region can be used for Internet access to view the document.

Copies of the document can be viewed at the offices of the Maryland Department of the Environment, Air and Radiation Management Administration, 1800 Washington Boulevard, Suite 730, Baltimore, Maryland. For more information, contact Mary Jane Rutkowski at (410) 537-3240.

Comments may be sent to Mary Jane Rutkowski, Maryland Department of the Environment, Air and Radiation Management Administration, 1800 Washington Boulevard, Suite 730, Baltimore, MD, 21230; emailed to MaryJane.Rutkowski@Maryland.gov ; or faxed to (410) 537-3203, attn: Mary Jane Rutkowski. Comments must be received by 5:00 P.M. on October 7, 2013, or be submitted at the hearing.

Persons in need of special accommodations should contact the Department's Office of Fair Practices at (410) 537-3964 at least five (5) business days in advance of the hearing. TTY users should contact the Department through the Maryland Relay Service at 1-(800) 735- 2258.

For more information, contact Mary Jane Rutkowski at (410) 537-3240 (Toll free in Maryland call 1-(800) 633-6101 ext. 3240), or via email at MaryJane.Rutkowski@Maryland.gov

New! Public hearing concerning the Washington County, MD Nonattainment Area PM2.5 Redesignation Request and Maintenance Plan

Redesignation Request

Maintenance Plan Appendices

A public hearing will be held on Tuesday, October 8, 2013, at the Washington County Planning Department, Washington County Administrative Annex, 80 West Baltimore Street, Hagerstown, Maryland 21740 – 1:30 P.M

The State of Maryland requests that the United States Environmental Protection Agency (USEPA) redesignate the Washington County, MD 1997 fine particulate (PM2.5) nonattainment area to attainment for this standard pursuant to the provisions under § 107 of the Maryland.gov | Phone Directory | State Agencies | Online Services

email friend print page HOME MARYLANDER BUSINESS RESEARCH CENTER NEWSROOMAir Quality Planning

http://www.mde.state.md.us/programs/Air/AirQualityPlanning/Pages/programs/airprograms/air_planning/index.aspx [9/6/2013 2:21:20 PM] federal Clean Air Act (CAA). Since the designations for the National Ambient Air Quality Standards (NAAQS) for this pollutant were published (Federal Register, Vol. 70, No. 3, 1/5/2005), the area’s PM2.5 air quality has improved due to permanent and enforceable emission reductions. Air quality in the area is significantly better than required by this standard. Due to the improvement in PM2.5 air quality, the Washington County, MD nonattainment area is currently operating under a clean data determination (Federal Register, Vol. 77, No. 6, January 10, 2012). The State of Maryland is also requesting that USEPA concurrently approve, as a revision to the state implementation plan (SIP) for each state, the related § 175A maintenance plan. This plan ensures that good PM2.5 air quality will be maintained through 2025.

The public hearing will be held as required by federal law (Clean Air Act at 42 U.S.C. 7410 (a) and 40 CFR 51.102). After consideration of comments received, the plan will be finalized and submitted to the United States Environmental Protection Agency (EPA) for approval. Note : the public library systems in the region can be used for Internet access to view the document.

Copies of the document can be viewed at the offices of the Maryland Department of the Environment, Air and Radiation Management Administration, 1800 Washington Boulevard, Suite 730, Baltimore, Maryland. For more information, contact Mary Jane Rutkowski at (410) 537-3240.

Comments may be sent to Mary Jane Rutkowski, Maryland Department of the Environment, Air and Radiation Management Administration, 1800 Washington Boulevard, Suite 730, Baltimore, MD, 21230; emailed to MaryJane.Rutkowski@Maryland.gov ; or faxed to (410) 537-3203, attn: Mary Jane Rutkowski. Comments must be received by 5:00 P.M. on October 8, 2013, or be submitted at the hearing.

Persons in need of special accommodations should contact the Department's Office of Fair Practices at (410) 537-3964 at least five (5) business days in advance of the hearing. TTY users should contact the Department through the Maryland Relay Service at 1-(800) 735- 2258.

For more information, contact Mary Jane Rutkowski at (410) 537-3240 (Toll free in Maryland call 1-(800) 633-6101 ext. 3240), or via email at MaryJane.Rutkowski@Maryland.gov

P ublic hearing concerning the Baltimore Serious Nonattainment Area 0.08 ppm 8-Hour Ozone State Implementation Plan Demonstrating Rate of Progress for 2008, 2011 and 2012 Revision to 2002 Base Year Emissions; and Serious Area Attainment Demonstration

Draft for Public Comment Appendices A-E

Appendices A Projection Year Emissions Inventories Appendix C Regulatory Support Information Appendix D RACM Measures List Appendix E Mobile Budget Documentation Appendix F Attainment Demonstration F1-F11 F13-14 Appendix B - Reasonable Further Progress Calculations - Not available for download -- Please contact Mary Jane Rutkowski at (410) 537-3240. Appendix F12 - CMAQ Model Performance Performance Data and Documentation Not available for download -- Please contact Mary Jane Rutkowski at (410) 537-3240. Date: June 18, 2013

A public hearing was held on Friday, July 19, 2013, at the Maryland Department of the Environment, 1800 Washington Boulevard, Baltimore, Maryland 21230 – First Floor Conference Room – 2:00 P.M.

On February 1, 2012 (effective March 2, 2012) EPA reclassified the Baltimore, Maryland Nonattainment Area as a "serious" nonattainment area. As a serious nonattainment area for 8-hour ozone National Ambient Air Quality Standard (NAAQS), the Baltimore region is required to meet the requirements defined in the Clean Air Act, Section 182 (d) and to submit a revised serious area SIP by September 30, 2012.

The Serious Area Attainment Plan describes the progress being made to improve air quality in the Baltimore Nonattainment Area and the efforts underway to assure that all necessary steps are taken to reach the federal health standard for ground-level ozone by 2012. The plan has been prepared by the Maryland Department of the Environment Air and Radiation Management Administration to comply with the Clean Air Act Amendments of 1990 (CAAA) and with EPA requirements for the Baltimore region as stated in EPA’s reclassification of the Baltimore region (77 Fed. Reg. 4901, February 1, 2012).

The public hearing will be held as required by federal law (Clean Air Act at 42 U.S.C. 7410 (a) and 40 CFR 51.102). After consideration of comments received, the plan will be finalized and submitted to the United States Environmental Protection Agency (EPA) for approval. Note : the public library systems in the region can be used for Internet access to view the document.

Copies of the document can be viewed at the offices of the Maryland Department of the Environment, Air and Radiation Management Administration, 1800 Washington Boulevard, Suite 730, Baltimore, Maryland. For more information, contact Mary Jane Rutkowski at (410) 537-3240.

Comments may be sent to Mary Jane Rutkowski, Maryland Department of the Environment, Air and Radiation Management Administration, 1800 Washington Boulevard, Suite 730, Baltimore, MD, 21230; emailed to MaryJane.Rutkowski@Maryland.gov; or faxed to (410) 537-3203, attn: Mary Jane Rutkowski. Comments must be received by 5:00 P.M. on July 19, 2013, or be submitted at the hearing.

Persons in need of special accommodations should contact the Department's Office of Fair Practices at (410) 537-3964 at least five (5) business days in advance of the hearing. TTY users should contact the Department through the Maryland Relay Service at 1-(800) 735- 2258.

For more information, contact Mary Jane Rutkowski at (410) 537-3240 (Toll free in Maryland call

1-(800) 633-6101 ext. 3240), or via email at MaryJane.Rutkowski@Maryland.gov

.

New! Public Hearing on Maryland State Implementation Plan for Clean Air Act Section 110(a)(2) for Nitrogen Dioxide (NO2) and Section 128 for all National Ambient Air Quality Standards

Draft for Public Comment Date: May 6, 2013

The Maryland Department of the Environment (MDE) will hold a public hearing on a State Implementation Plan (SIP) addressing implementation, maintenance, and enforcement measures for the 2010, 100 ppb 1-hour nitrogen dioxide (NO2) National Ambient Air Quality Standard (NAAQS). This SIP also addresses the requirements for all criteria pollutants’ NAAQS in relation to state boards and agency heads, and disclosure of potential conflicts of interest.

The public hearing will be held on Wednesday, June 12, 2013, at 2:00 P.M. at the Maryland Department of the Environment headquarters located at 1800 Washington Boulevard, First Floor Conference Room, Baltimore, Maryland, 21230.Air Quality Planning

http://www.mde.state.md.us/programs/Air/AirQualityPlanning/Pages/programs/airprograms/air_planning/index.aspx [9/6/2013 2:21:20 PM] The public hearing will be held as required by federal law (Clean Air Act at 42 U.S.C. 7410 (a) and 40 CFR 51.102). After consideration of comments received, the plan will be finalized and submitted to the United States Environmental Protection Agency for approval.

Note: the public library systems in the region can be used for Internet access to view the document.

Copies of the document can be viewed at the offices of the Maryland Department of the Environment, Air and Radiation Management Administration, 1800 Washington Boulevard, Suite 730, Baltimore, Maryland. For more information, contact Molla Sarros at (410) 537- 3240.

C omments may be sent to Molla Sarros, Maryland Department of the Environment, Air and Radiation Management Administration, 1800 Washington Boulevard, Suite 730, Baltimore, MD, 21230; emailed to Molla Sarros ; or faxed to (410) 537-3203, attn: Molla Sarros.

Comments must be received by 5:00 P.M. on June 12, 2013, or be submitted at the hearing

. Persons in need of special accommodations should contact the Department's Office of Fair Practices at (410) 537-3964 at least five (5) business days in advance of the hearing. TTY users should contact the Department through the Maryland Relay Service at 1-(800) 735- 2258.

For more information, contact Molla Sarros at (410) 537-3240 (Toll free in Maryland call 1-(800) 633-6101 ext. 3240) or via email to Molla Sarros ;

New! Public Hearing on Maryland State Implementation Plan for Clean Air Act Section 110(a)(2) for Lead (Pb)

Draft for Public Comment Date: May 6, 2013

The Maryland Department of the Environment (MDE) will hold a public hearing on a State Implementation Plan (SIP) addressing implementation, maintenance, and enforcement measures for the 2008, 0.15 μg/m3, lead (Pb) National Ambient Air Quality Standard (NAAQS). This SIP is an addendum to SIP 12-09, dated December 12, 2012, which MDE submitted to EPA on January 3, 2013.

The public hearing will be held on Wednesday, June 12, 2013, at 2:00 P.M. at the Maryland Department of the Environment headquarters located at 1800 Washington Boulevard, First Floor Conference Room, Baltimore, Maryland, 21230.

The public hearing will be held as required by federal law (Clean Air Act at 42 U.S.C. 7410 (a) and 40 CFR 51.102). After consideration of comments received, the plan will be finalized and submitted to the United States Environmental Protection Agency for approval.

Note: the public library systems in the region can be used for Internet access to view the document.

Copies of the document can be viewed at the offices of the Maryland Department of the Environment, Air and Radiation Management Administration, 1800 Washington Boulevard, Suite 730, Baltimore, Maryland. For more information, contact Molla Sarros at (410) 537- 3240.

Comments may be sent to Molla Sarros, Maryland Department of the Environment, Air and Radiation Management Administration, 1800 Washington Boulevard, Suite 730, Baltimore, MD, 21230; emailed to Molla Sarros ; or faxed to (410) 537-3203, attn: Molla Sarros.

Comments must be received by 5:00 P.M. on June 12, 2013, or be submitted at the hearing.

Persons in need of special accommodations should contact the Department's Office of Fair Practices at (410) 537-3964 at least five (5) business days in advance of the hearing. TTY users should contact the Department through the Maryland Relay Service at 1-(800) 735- 2258.

For more information, contact Molla Sarros at (410) 537-3240 (Toll free in Maryland call 1-(800) 633-6101 ext. 3240) or via email at Molla.Sarros@maryland.gov

.

Document:

Maryland's Redesignation Request & Maintenance Plan for Fine Particulate (PM2.5) Matter

SIP Document

Document:

Maryland's Implementation, Maintenance, and Enforcement Measures for the 8-Hour Ozone National Ambient Air Quality Standard State Implementation Plan

Date: December 21, 2012

SIP Document

Document:

Maryland's Lead (Pb) Infrastructure State Implementation Plan

Date: December 12, 2012

SIP Document

Document:

Maryland's Regional Haze State Implementation Plan

Date: February 9, 2012

SIP Document (4,137 KB)

Appendix A - MANE-VU Class I Area Contribution Assessment

Appendix A-1 Trajectory Analysis

Appendix A-1a: Trajectory Analysis Results at Acadia National Park

Appendix A-1b: Trajectory Analysis Results at Brigantine National Park

Appendix A-1c: Trajectory Analysis Results at Dolly Sods Wilderness AreaAir Quality Planning

http://www.mde.state.md.us/programs/Air/AirQualityPlanning/Pages/programs/airprograms/air_planning/index.aspx [9/6/2013 2:21:20 PM] Appendix A-1d: Trajectory Analysis Results at Great Gulf Wilderness Area

Appendix A-1e: Trajectory Analysis Results at Great Smokey Mountains National Park

Appendix A-1f: Trajectory Analysis Results at James River Face Wilderness Area

Appendix A-1g: Trajectory Analysis Results at Lye Brook Wilderness Area

Appendix A-1h: Trajectory Analysis Results at Mohawk Mountain

Appendix A-1i: Trajectory Analysis Results at Moosehorn National Wildlife Area

Appendix A-1j: Trajectory Analysis Results at Multiple Sites

Appendix A-1k: Trajectory Analysis Results at Queens College, New York City

Appendix A-1l: Trajectory Analysis Results at Pittsburgh, PA

Appendix A-1m: Trajectory Analysis Results at Shenandoah National Park

Appendix A-1n: Trajectory Analysis Results at Washington, D.C.

Appendix A-2: Source Attribution by Receptor-Based Methods

Appendix A-3: Chemical Transport Model Results

Appendix A-4: CALPUFF Dispersion Modeling Platforms

Appendix A-5: Summary of Stakeholder Comments

Appendix A-6: MANE-VU Responses to Comments

Appendix A-7: Lake Michigan Air Directors Consortium (LADCO) Contribution Assessment

Appendix B

- Final Interim Principals for Regional Planning

Appendix C- Federal Land Managers (FLM) Comments (Placeholder)

Appendix D- Base Year Emissions Inventory (EI)

Appendix D-1- Technical Support Documentation for the MANE-VU 2002 Inventory

Appendix D-2: Technical Support Documentation for the MDE 2002 Base Year Inventory

Appendix D-2.1: Base Year Haze SIP Inventory Methodologies

Appendix D-2.2: Point Source Base Year Inventory Database

Appendix D-2.3: Area/NonRoad/Quasi-Point Source Base Year Inventory Database

Appendix D-2.4: Mobile Source Base Year Inventory Database

Appendix E- Future Year Emissions Inventory

Appendix E-1: MANE-VU Future Year Modeling Inventories

Appendix E-1-1: 2009 Data

Appendix E-1-2: 2012 Data

Appendix E-1-3: 2018 Data

Appendix E-2- Development of Emissions Projections for 2009, 2012, and 2018

Appendix F- SMOKE Modeling Configuration

Appendix G-Best Available Retrofit Technology (BART)

Appendix G-1- BART Source List- MANE-VU

Appendix G-2- Maryland BART Analysis:

Appendix G-2a- Constellation Power Source Generation BART Assessment

Crane Generating Station
, Wagner Generating Station

Appendix G-2b- Eastalco Aluminum BART Assessment

Appendix G-2c- Independent/ St. Lawrence Cement Assessment:

Holcim 2010, St. Lawrence Cement 2007

Appendix G-2d- Mettiki Coal, LLC BART Assessment:

Applicability Qualifiers Letter

Appendix G-2e- New Page/ Westvaco/ Luke Paper BART Assessment:

New Page 2007
, New Page 2010

Appendix G-2f- Mirant Mid Atlantic, LLC BART Assessment Documentation:

Mirant

Appendix G-3: BART CAIR (Clean Air Interstate Rule) Exemption

Appendix G-4: Five Factor Analysis of BART Eligible Sources

Appendix G-5: Assessment of Control Technology Options for BART Eligible Sources

Appendix H- Baseline and Natural Background Visibility ConditionsAir Quality Planning

http://www.mde.state.md.us/programs/Air/AirQualityPlanning/Pages/programs/airprograms/air_planning/index.aspx [9/6/2013 2:21:20 PM] Appendix I- The Nature of Fine Particle and Regional Haze Air Quality Problems in the MANE-VU Region

Appendix J- Comparison of CAIR and CAIRPlus Proposal Using the Integrated Planning Model Future Year Emissions Inventory

Appendix K- Assessment of Reasonable Progress for Regional Haze in MANE-VU Class I Areas

Appendix L- MANE-VU Modeling for Reasonable Progress Goals

Appendix M- 2018 Visibility Projections

Appendix N- Table of Top EGU Emission Points

Appendix O- Technical Support Document on Measures to Mitigate Visibility Impacts on Construction Activities in the MANE-VU Region

Appendix P- Technical Support Document on Agricultural and Forestry Smoke Management in the MANE-VU Region

Appendix Q- Inter-RPO State Tribal & FLM Consultation Framework

Appendix R- Documentation of 2018 Emissions from EGU's

Document: Maryland’s 8-hour Ozone Reasonably Available Control Technology (RACT) State Implementation Plan, DRAFT 2011 Revision to SIP Number 06-07 Date: August 24, 2011

SIP Document (1,007 KB)

Document: Letter to U.S. EPA certifying that MDE has the authority to implement, maintain and enforce the federal PM2.5 National Ambient Air Quality Standards NAAQS

Document: Baltimore Nonattainment Area PM2.5 State Implementation Plan and Base Year Inventory March 24, 2008

SIP Document (2377 KB)

Appendix A – Base Year Emission Inventory
Appendix A-1: Base Year Emission Inventory Methodologies (2679 KB)
Appendix A-2: Point Source Base Year Inventory (884 KB)
Appendix A-3: Quasi-Point Source Base Year Inventory (30 KB)
Appendix A-4: Area Source Base Year Inventory (148 KB)
Appendix A-5: Mobile Source Base Year Inventory (362 KB)
Appendix A-6: Nonroad Source Base Year Inventory (235 KB)
Appendix B – Projection Year Methodologies (194 KB)
Appendix C – Reasonably Available Control Measures (RACM) Analysis
Appendix C-1: List of Potential RACM Control Measures & Analysis (998 KB)
Appendix C-2: BMC Reduction Measures List & Analysis (85 KB)
Appendix D – Mobile Budget Documentation
Appendix D-1: PM2.5 Precursor Significance Determination for the Baltimore, MD Nonattainment Area (123 KB)
Appendix D-2: Baltimore Area Mobile Source Emissions Technical Support Document for the PM2.5 Attainment Plan (271 KB)
Appendix D-3: MOBILE6.2 Input Parameter Summary (96 KB)
Appendix D-4: MOBILE6.2 Sample Input Files (128 KB)
Appendix D-5-1: Baltimore Area VMT and Emission Summary By Vehicle Type (22 KB)
Appendix D-5-2: Baltimore Area VMT and Emission Summary By Functional Class (18 KB)
Appendix D-5-3: Baltimore Area 2009 Annual PM2.5 Summary (21 KB)
Appendix E – Ozone Transport Commission MOU (113 KB)
Appendix F – Contingency Synopsis of the ASIP Sensitivity Study
Appendix F-1: Synopsis of the ASIP PM2.5 Sensitivity Study and SO2/NOX Equivalency Ratios (83 KB)
Appendix F-2: Data from the BOTW/VA CAIR Modeling Run for PM2.5 (34 KB)
Appendix G – Attainment Modeling and Weight of Evidence
Appendix G-1: Conceptual Model (5094 KB)
Appendix G-2: Modeling Domain Boundary (42 KB)
Appendix G-3: Horizontal Grid Definitions for MM5 and CMAQ Modeling Domain (36 KB)
Appendix G-4: Vertical Layer Definitions for MM5 and CMAQ Modeling Domain (179 KB)
Appendix G-5: MM5 Model Configuration (61 KB)
Appendix G-6: MM5 Model Performance Evaluation (7615 KB)
Appendix G-7: SMOKE Processing Description and Configuration (1124 KB)
Appendix G-8: CMAQ Configuration (78 KB)
Appendix G-9: CMAQ Model Performance (20 KB)
Appendix G-10: Additional Information on Design value Calculations (53 KB)
Appendix G-11: Weight of Evidence ReportAir Quality Planning

http://www.mde.state.md.us/programs/Air/AirQualityPlanning/Pages/programs/airprograms/air_planning/index.aspx [9/6/2013 2:21:20 PM] Appendix G-11-1: Report (7956 KB)
Appendix G-11-2: Report Appendices (67827 KB)

Document:State Implementation Plan (SIP) for Annual Fine Particle (PM2.5) Standard and 2002 Base Year Inventory for the Washington DC-MDVA Nonattainment Area Date: March 7, 2008 Click here to download

Document: Washington County, MD PM2.5 State Implementation Plan and Base Year Inventory February 29, 2008

SIP Document (2067 KB)

Appendix A – Base Year Emission Inventory
Appendix A-1: Base Year Emission Inventory Methodologies (2679 KB)
Appendix A-2: Point Source Base Year Inventory (73 KB)
Appendix A-3: Quasi-Point Source Base Year Inventory (11 KB)
Appendix A-4: Area Source Base Year Inventory (32 KB)
Appendix A-5: Mobile Source Base Year Inventory (75 KB)
Appendix A-6: Nonroad Source Base Year Inventory
Appendix A-6-1 (33 KB)
Appendix A-6-2 (15 KB)
Appendix B – Projection Year Methodologies (194 KB)
Appendix C – Reasonably Available Control Measures (RACM) Analysis (894 KB)
Appendix D – Mobile Budget Documentation
Appendix D-1: 2008 RFP and 2009 Attainment Year Mobile Budget Methodology and Documentation (64 KB)
Appendix D-2: Washington County Area: Mobile Source Emissions Technical Support Document February 2007 (256 KB)
Appendix D-3: MOBILE6.2 Input Parameter Summary (94 KB)
Appendix D-4: MOBILE6.2 Sample Input Files (127 KB)
Appendix D-5-1: Washington County VMT and Emission Summary By Vehicle Type (39 KB)
Appendix D-5-2: Washington County VMT and Emission Summary By Functional Class (26 KB)
Appendix D-5-3: Washington County 2009 Annual PM2.5 Summary (15 KB)
Appendix E – Ozone Transport Commission MOU (113 KB)
Appendix F – Contingency Synopsis of the ASIP Sensitivity Study
Appendix F-1: Synopsis of the ASIP PM2.5 Sensitivity Study and SO2/NOX Equivalency Ratios (83 KB)
Appendix F-2: Data from the BOTW/VA CAIR Modeling Run for PM2.5 (34 KB)
Appendix G – Attainment Modeling and Weight of Evidence
Appendix G-1: Conceptual Model (4056 KB)
Appendix G-2: Modeling Domain Boundary (42 KB)
Appendix G-3: Horizontal Grid Definitions for MM5 and CMAQ Modeling Domain (36 KB)
Appendix G-4: Vertical Layer Definitions for MM5 and CMAQ Modeling Domain (179 KB)
Appendix G-5: MM5 Model Configuration (61 KB)
Appendix G-6: MM5 Model Performance Evaluation (7615 KB)
Appendix G-7: SMOKE Processing Description and Configuration (1124 KB)
Appendix G-8: CMAQ Configuration (74 KB)
Appendix G-9: CMAQ Model Performance (20 KB)
Appendix G-10: Additional Information on Design value Calculations (41 KB)
Appendix G-11: Weight of Evidence Report
Appendix G-11-1: Report ( KB)
Appendix G-11-2: Report Appendices (67827 KB)

Document: Proposed Implementation, Maintenance, and Enforcement of the PM2.5 National Ambient Air Quality Standard State Implementation Plan Date: February 15, 2008 Click here to download.

Document: Implementation, Maintenance, and Enforcement Measures for the 8-Hour Ozone National Ambient Air Quality Standard State Implementation Plan (SIP) Date: June 15, 2007 Click here to download.

Document: Baltimore Nonattainment Area 8-hour Ozone State Implementation Plan and Base Year Inventory June 15, 2007

SIP Document (6.7 MB) Appendix A

Appendix A2 (1.2 MB)Air Quality Planning

http://www.mde.state.md.us/programs/Air/AirQualityPlanning/Pages/programs/airprograms/air_planning/index.aspx [9/6/2013 2:21:20 PM] Appendix A3 (429 KB) Appendix A4 (280 KB) Appendix A5 (710 KB) Appendix A6 (878 KB) Appendix B (194 KB) Appendix C (823 KB) Appendix D (92 KB) Appendix E

Appendix E1 (330 KB) Appendix E2 (59 KB) Appendix F

Appendix F - Mobile Source Emission Technical Support Document (232 KB) Appendix F - Input Parameter Summary (57 KB) Appendix F - Input Files Sample (27 KB) Appendix F - Summary Table (40 KB) Appendix F - Emissions Summary (28 KB) Appendix G

Appendix G1 (514 KB) Appendix G2 (15 KB) Appendix G3 (15 KB) Appendix G4 (2.4 MB) Appendix G5 (1.1 MB) Appendix G6 (827 KB) Appendix G7 (1.0 MB) Appendix G8 (1.7 MB) Appendix G9 (378 KB) Appendix G10 (802 KB) Appendix G11 (342 KB) Appendix G12 (367 KB) Appendix G13 (188 KB) Appendix G14 (67 KB) Appendix G15 (49 KB) Appendix H Appendix I (69 KB)

Document: Cecil County, Maryland 8-hour Ozone State Implementation Plan and Base Year Inventory June 15, 2007

SIP Document (5.4 MB) Appendix A

Appendix A2 (118 KB) Appendix A3 (35 KB) Appendix A4 (112 KB) Appendix A5 (129 KB) Appendix A6 (382 KB) Appendix B (194 KB) Appendix C (220 KB) Appendix D (83 KB) Appendix E

Appendix E1 (328 KB) Appendix E2 (59 KB) Appendix F

Appendix F - Mobile Source Emission Technical Support Document (232 KB) Appendix F - Input Parameter Summary (57 KB) Appendix F - Input Files Sample (27 KB) Appendix F - Summary Table (40 KB) Appendix F - Emissions Summary (15 KB) Appendix G

Appendix G1 (514 KB) Appendix G2 (15 KB) Appendix G3 (15 KB) Appendix G4 (2.4 MB) Appendix G5 (1.1 MB) Appendix G6 (827 KB) Appendix G7 (1.0 MB) Appendix G8 (1.7 MB) Appendix G9 (378 KB) Appendix G10 (802 KB) Appendix G11 (342 KB) Appendix G12 (367 KB) Appendix G13 (188 KB) Appendix G14 (67 KB) Appendix G15 (86 KB) Appendix H Appendix I (79 KB)

Document: State Implementation Plan (SIP) for 8-Hour Ozone Standard and 2002 Base Year Inventory for the Washington DC-MD-VA Nonattainment Area May 23, 2007 Click here

Document: Revision to Maryland’s Transportation Conformity State Implementation Plan November 9, 2006

SIP Document (71 KB) Regulation (1,087 KB) Regulation - Full Text (110 KB)

Document: Maryland’s 8-hour Ozone Reasonably Available Control Technology (RACT) State Implementation Plan July 31, 2006

SIP Document (510 KB)Air Quality Planning

http://www.mde.state.md.us/programs/Air/AirQualityPlanning/Pages/programs/airprograms/air_planning/index.aspx [9/6/2013 2:21:20 PM] Appendix A (102 KB) Appendix B (15 KB) RACT SIP Survey Appendix C (333 KB) RACT and Major Sources

Document: Redesignation Request for Kent and Queen Anne’s Counties 8-hour Ozone Nonattainment Area Date: March 15, 2006 Click here to download.

Document: Maintenance Plan and 2002 Base Year Emission Inventory for the Kent and Queen Anne's Counties 8-hour Ozone Nonattainment Area Date: March 15, 2006 Click here to download.

Document: Revisions to Kent and Queen Anne’s Counties 1-hour Ozone Maintenance Plan Date: March 15, 2006 Click here to download.

Document: Washington County 8-Hour Ozone Early Action Compact (EAC) State Implementation Plan: Air Quality Modeling Addendum SIP Revision 04-10 - Addendum Date: February 16, 2005 Click here to download.

Document: Washington County 8-Hour Ozone Early Action Compact (EAC) State Implementation Plan SIP Document : Executive Summary/Table of Contents/Chapters 1-8 (2.1 MB PDF file)

Appendix A (574 KB) Early Action Compact Agreement With Washington County Appendix B (622 KB) EAC Guidance and Protocol Documents Appendix C (526 KB) EAC Memorandums Appendix D (36 KB) Control Measures Selected for Action Plan Appendix E (7,135 KB) Comprehensive Analysis of Transportation Emission Reduction Measures Appendix F (547 KB) Health and Ozone Appendix G (249 KB) History of the Early Action Plan Appendix H (1,866 KB) Regional Transport and 8-Hour Ozone Appendix I (3,471 KB) Documentation of Public Process

Document: SIP Revision 04-06 (Proposed) - Revision to the Washington Severe SIP: Implementation of Section 185 Fee Structure Date: March 26, 2004 Click here to download.

Document: SIP Revision 04-04 (Proposed) - Memorandum of Agreement (MOA) to Allow EPA to Grant the Separation of the Kent and Queen Anne’s Counties 8-Hour Ozone Nonattainment Area from the Baltimore Region 8-Hour Ozone Nonattainment Area between U.S. EPA Region III and MDE Date: February 25, 2004 Click here to download.

Document: Modification to the Rate of Progress Plan for Cecil County: Revising Mobile Emission Estimates with Mobile6 Date: January 8, 2004 Click here to download.

Document: Redesignation Request for Kent and Queen Anne’s Counties Ozone Nonattainment Area Date: December 18, 2003 Click here to download.

Document: Maintenance Plan for the Baltimore Carbon Monoxide Attainment Area Date: December 15, 2003 Click here to download.

Document: Demonstrating Rate of Progress for 2002 and 2005; Revision to 1990 Base Year Emissions; and Severe Area Attainment Demonstration for the WASHINGTON DC-MD-VA Nonattainment Area Date: December 17, 2003 Click here to download.

Document:Revised Carbon Monoxide Maintenance Plan and Revised 1990 Carbon Monoxide Base Year Emissions Inventory for the Washington DCMD-VA Nonattainment Area Date: December 17, 2003 Click here to download.

Document: 2002 Maryland Air Quality Report - Status Report and Long-Term Trends Date: December 3, 2003 Click here to download the report. Click here for historical air quality data.

Document: Modification to the Rate of Progress Plan for the Baltimore Region: Revising Mobile Emission Estimates with Mobile6 Date: October 27, 2003 Click here to download.

Appendix A - Mobile6 Documentation

Document: Proposed State Implementation Plan (SIP) - “Severe Area SIP” - Demonstrating Rate of Progress for 2002 and 2005, Revision to 1990 Base Year Emissions, and Severe Area Attainment Demonstration for the WASHINGTON DC-MD-VA NONATTAINMENT Date: June 2, 2003 SIP Document : Executive Summary/Table of Contents/Chapters 1-12 (1.2 MB PDF file)Air Quality Planning

http://www.mde.state.md.us/programs/Air/AirQualityPlanning/Pages/programs/airprograms/air_planning/index.aspx [9/6/2013 2:21:20 PM] Appendix A (72 KB PDF file) - Membership Rosters for the Metropolitan Washington Air Quality Committee (MWAQC) and its Technical Advisory Committee and Air Quality Public Advisory Committee

Appendix B (3.7 MB PDF file) - MOBILE6 Inventories and Documentation

Appendices C-F (1.2 MB PDF file)

Appendix C - Round 6.2 Cooperative Forecast Projections: Area and Nonroad Inventories and Projections

Appendix D - Draft Round 6.3 Cooperative Forecast Projections: Area and Nonroad Inventories and Projections

Appendix E - Point Source Inventories and Projections

Appendix F - Use of NOx Substitution in Rate of Progress; RACT Fix-Up Documentation

Appendices G-K (3.1 MB PDF file)

Appendix G - Emission Reduction from Transportation Control Measures

Appendix H - Severe Area Plan Commitments

Appendix I - Contingency Plan Commitments; Emissions Reductions from Phase II RFG Controls; Emissions Reductions from Selected Contingency Measures

Appendix J - EPA Voluntary Measures Guidance; Allowable Tonnage from Voluntary Measures; Voluntary Measure Documentation

Appendix K - Information Related to Public Hearings, Hearing Notices, Comments Received and Response to Comments

Appendix L (11 KB PDF file) - Analysis of Potential Stationary Source RACM Measures for the Metropolitan Washington Region's Severe Area SIP

Appendix M (40 KB PDF file) - Analysis of Potential Area Source RACM Measures for the Metropolitan Washington Region's Severe Area SIP

Appendix N (138 KB PDF file) - Analysis of Potential Non-Road Source RACM Measures for the Metropolitan Washington Region's Severe Area SIP

Appendix O (285 KB PDF file) - Analysis of Potential Mobile Source RACM Measures for the Metropolitan Washington Region's Severe Area SIP

Document: Modification to the Phase II Attainment Plan for the Baltimore and Cecil County Nonattainment Areas: Revising the Mobile Source Emission Budgets using Mobile 6 Date: May 21, 2003 Click here to download.

Document: Reasonably Available Control Measure (RACM) Analysis for Cecil County Date: July 18, 2001 Click here to download.

Document: Reasonably Available Control Measure (RACM) Analysis for the Baltimore Region Date: July 6, 2001 Click here to download.

Document: Modification to the Phase II Attainment Plan for the Baltimore Region: Revising the Mobile Source Emission Budgets, Adding Tier 2 Standards Date: November 6, 2000 Click here to download.

Document: Modification to the Phase II Attainment Plan for Cecil County: Revising the Mobile Source Emission Budgets, Adding Tier 2 Standards Date: November 9, 2000 Click here to download.

Document: Maryland Commitment letter to EPA for Baltimore region Date: December 17, 1999 Click here to download.

Document: Maryland Commitment letter to EPA for Cecil County Date: February 2, 2000 Click here to download.

Document: Modification to the Phase II Attainment Plan for the Baltimore Nonattainment Area and Cecil County: Revising the Mobile Source Emission Budgets Date: November 9, 1999 Click here to download.

Document: Phase II Attainment Plan for the Baltimore Nonattainment Area and Cecil County Date: April 24, 1998 Click here to download.

Document: Technical Support Document for the Phase II Attainment Plan for the Baltimore Region Date: June 29, 2001 Click here to download.

Document: Phase I Attainment Plan for the Baltimore Nonattainment Area and Cecil County Date: April 24, 1998 SIP Document : Executive Summary, Chapters 1-9, and References

Appendix A : EPA Policy MemorandumAir Quality Planning

http://www.mde.state.md.us/programs/Air/AirQualityPlanning/Pages/programs/airprograms/air_planning/index.aspx [9/6/2013 2:21:20 PM] Appendix B : Modifications and Projections to the 1990 Base Year

Appendix C : Post-1996 Target Level Calculation Following EPA Guidance

Appendix D: Nonroad Emission Reductions

Appendix E : Emission Reductions from Control Measures Included in the 15% RPP

Appendix F : The OTC NOx Emission Reduction MOU and Calculation of NOx Emission Reductions from Stationary Sources

Appendix G : Nitrogen Oxides Substitution

Appendix H: Revisions to the 15% Rate of Progress Plan

Document: 1990 Greenhouse Gas Inventory Date:April, 2001 Click here to download.

Additional Links Proposed Action for Distributed Generation National Ambient Air Quality Standards Emission Reduction Credits WILMAPCO Transportation Plan MWCOG Transportation Plan Baltimore Regional Transportation Plan Transportation Conformity- MDE Presentation

Contact the Office | Accessibility | Privacy Notice
1800 Washington Boulevard, Baltimore, MD 21230 | (410) 537-3000

# M a r y l a n d R e g i s t e r

I s s u e D a t e : S e p t e m b e r 2 0 , 2 0 1 3 V o l u m e 4 0 • I s s u e 1 9 • P a g e s 1 5 2 9

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, w h e t h e r b y a d o p ti o n , a m e n d m e n t
, r e p e a l

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. T h e f o l l o w i n g i n f o r m a ti o n i s a l s o p u b l i s h e d r e g u l a r l

y i n t h e R e g i s t e r :

• G o v e r n o r ’ s E x e c u ti v e O r d e r s

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• O p e n M e e t i n g s C o m p l i a n c e B o a r d O p i n i o n s i n f u l l t e x t

• S t a t e E t h i c s C o m m i s s i o n O p i n i o n s i n f u l l t e x t

• C o u r t R u l e s

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t i v e M e m o r a n d a

• C o u r t s o f A p p e a l H e a r i n g C a l e n d a r s

• A g e n c y H e a r i n g a n d M e e t i n g N o t i c e s

• S y n o p s e s o f B i l l s I n t r o d u c e d a n d E n a c t e d b y t h e G e n e r a l A s s e m b l

y

• O t h e r d o c u m e n t s c o n s i d e r e d t o b e i n t h e p u b l i c i n t e r e s t

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. C O D E O F M A R Y L A N D R E G U L A T I O N S ( C O M A R )

C O M A R i s t h e o f f i c i a l c o m p i l a ti o n o f a l l r e g u l a t i o n s i s s u e d b y a g e n c i e s o f t h e S t a t e o f M a r y l a n d

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. A t l e a s t o n c e a n n u a l l y , t h e c h a n g e s t o r e g u l a ti o n s p r i n t e d i n t h e M a r y l a n dGENERAL NOTICES 1601

MARYLAND REGISTER, VOLUME 40, ISSUE 19, FRIDAY, SEPTEMBER 20, 2013 STATE BOARD OF STATIONARY

ENGINEERS
Subject: Public Meeting Date and Time: November 19, 2013, 10

a.m.

— 12 p.m. Place: 500 N. Calvert St., Rm. 302, Baltimore, MD Contact: Gae He rzberger (410) 230

- 6163

[13

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- 17]

DEPARTMENT OF THE ENVIRONMENT/

AIR AND RADIATION MANAGEMENT ADMINISTRATION
Subject: Notice of Public Hearing on Air Quality Plan Date and Time: October 7, 2013, 1 p.m. Place: Dept

. of the Environment, 1800 Washington Blvd., Baltimore, MD Add ’ l. Info: The Maryland Department of the Environment (MDE) gives notice of a Public Hearing concerning Baltimore Nonattainment Area PM2.5 Redesignation Request and Maintenance Plan. A publ ic hearing will be held on: October 7, 2013, at the Department of the Environment, 1800 Washington Boulevard, Baltimore, Maryland 21230

— Firs t Floor Conference Room

— 1 :00 P.M. The Public Hearing will be held as required by federal law (Clean Air Act at 42 U.S.C. 7410(a) and 40 CFR 51.102). Interested persons are invited to attend and express their views. After the Department considers the

comm ents received, and revises the proposal if necessary, all related items will be submitted to the U.S. Environmental Protection Agency. An electronic copy of the proposed revision will be available on the Maryland Department of the Environment ’ s website at http://www.mde.state.md.us/programs/Air/ AirQualityPlanning/Pages/programs/airpro grams/air_planning/index.aspx. Note: the public library systems in Maryland can be used for Internet access to view the document. An electronic copy of the document can also be obtained via email by writing to Mary Jane Rutkowski at MaryJane.Rutkowski@Maryland.gov. Copies of the document can also be viewed at the Maryland Department of the Environment Main Office, Air and Radiation Management Administration, 1800 Washington B oulevard, Baltimore, Maryland. Hard Copy Contact: Mary Jane Rutkowski. Written comments may be presented at the hearing, faxed to 410

- 537

- 3203, emailed to MaryJane.Rutkowski@Maryland.gov, or mailed to Mary Jane Rutkowski, MDE ARMA, 1800 Washington Boulevar d, Suite 730, Baltimore, MD, 21230. Comments must

be received before 5 p.m. on July 19, 2013. Anyone needing special accommodations at a public hearing should contact the Department’s Fair Practices Office at (410) 537

- 3964. TTY users may contact the Depar tment through the Maryland Relay Service at 1

- 800

- 735

- 2258. For more information, contact Mary Jane Rutkowski, Natural Resources Planner, at (410) 537

- 3240. Toll free in Maryland call 1

- (800) 633

- 6101, ext. 3240, Maryland Department of the Environment, Air and Radiation Management Administration, 1800 Washington Boulevard, Ste. 730, Baltimore, Maryland 21230

. Contact: Mary Jane Rutkowski (410) 537

- 3240 [13

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- 52]

DEPARTMENT OF THE ENVIRONMENT/AIR AND RADIATION MANAGEMENT ADMINISTRATION
Subject: Notice of Public Hearing on Air Quality Plan Date and Time: October 8, 2013, 1:3 0
p.m. Place: Washington Co

. Planning Dept

. , Washington Co

. Administrative Annex, 80 W

. Baltimore St

. , Hagerstown, Maryla nd 21740 Add ’ l. Info: The Maryland Department of the Environment (MDE) gives notice of a Public Hearing concerning Washington County, MD Nonattainment Area PM 2.5 Redesignation Request and Maintenance Plan. The Public Hearing will be held as required by fed eral law (Clean Air Act at 42 U.S.C. 7410(a) and 40 CFR 51.102). Interested persons are invited to attend and express their views. After the Department considers the comments received, and revises the proposal if necessary, all related items will be submit ted to the U.S. Environmental Protection Agency. An electronic copy of the proposed revision will be available on the Maryland Department of the Environment ’ s website at http://www.mde.state.md.us/programs/Air/ AirQualityPlanning/Pages/programs/airpro
gra ms/air_planning/index.aspx. Note: the public library systems in Maryland can be used for Internet access to view the document. An electronic copy of the document can also be obtained via email by writing to Mary Jane Rutkowski at MaryJane.Rutkowski@Maryla nd.gov. Copies of the document can also be viewed at the 1. The Maryland Department of the Environment, Air and Radiation Management Administration, 1800 Washington Boulevard, Suite 730, Baltimore, Maryland. 2. Washington County Planning Department, Wash ington County Administrative Annex, 80 West Baltimore Street, Hagerstown, Maryland Hard Copy Contact: Mary Jane Rutkowski. Written comments may be presented at the hearing, faxed to 410

- 537

- 3203, emailed to MaryJane.Rutkowski@Maryland.gov, or mailed to Mar

y Jane Rutkowski, MDE ARMA, 1800 Washington Boulevard, Suite 730, Baltimore, MD, 21230. Comments must be received before 5 p.m. on July 19, 2013. Anyone needing special accommodations at a public hearing should contact the Department’s Fair Practices Offic e at (410) 537

- 3964. TTY users may contact the Department through the Maryland Relay Service at 1

- 800

- 735

- 2258. For more information, contact Mary Jane Rutkowski, Natural Resources Planner, at (410) 537

- 3240. Toll free in Maryland call 1

- (800) 633

- 6101, ex t. 3240, Maryland Department of the Environment, Air and Radiation Management Administration, 1800 Washington Boulevard, Ste. 730, Baltimore, Maryland 21230 Contact: Mary Jane Rutkowski (410) 537

- 3240 [13

- 19

- 53]

BOARD OF ENVIRONMENTAL HEALTH SPECIALISTS
Subject: Public Meeting Date and Time: October 2, 2013, 10 a.m.

— 3 p.m. Place: Howard Co. Bureau of Utilities, 8720 Old Montgomery Rd., Baltimore, MD Add’l. Info: The Board may discuss/vote on proposed regulations. A portion of the meeting may be held in closed session. Contact: James T. Merrow (410) 764

- 4722

[13

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- 24]

FIRE PREVENTION COMMISSION
Subject: Public Meeting Date and Time: October 17, 2013, 9:30

a.m. Place: Laurel Municipal Bldg., 8103 Sandy Spring Rd., Council Chambers, Laurel, MD Add’l. Info: If public schools in Prince George’s County are CLOSED due to inclemen t weather, the meeting and any appeals will be rescheduled. Contact: Heidi Ritchie (877) 890

- 0199

[13

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### 1 Opening Remarks Public Hearing on Baltimore Nonattainment Area PM2.5 Redesignation Request
and Maintenance Plan

Date: October 7 , 2013 Mary Jane Rutkowski , Hearing Officer Maryland Department of the Environment

If the court reporter would turn on the e quipment, we will begin. Good Afternoon

.
On behalf of the Maryland Department of the Environment, Air and Radiation

Management Administration, I would like to welcome everyone present to this

public hearing. This public hearing is being held pursuant to federal law found at

42 U. S. C. § 7410(a) and 40 CFR Parts 51.102 and 251. It is also being held in

conformance with the State Administrative Procedure Act, under the State

Government Article, beginning at Section 10

- 101.

Notice was also posted on the M aryland Department of the Environment web site

starting on September 6, 2013

.

### 2 My name is Mary Jane Rutkowski . I am a Natural Resources P lanner with

the Air and Radiation Management Administration’s Air Quality Planning

Program. I will serve as hearing o fficer this morning

.

First, I would like to ask all in attendance to please sign

- in at the back, if you

haven't already done so. This will help us to keep an accurate record of the people

who participate in our proceedings here today. Also, a full copy of the proposed

SIP is available on the back table for your information.

The hearing will proceed in the followin g order. First, ______ , a

_____ with

the

_____ Program of the Air and Radiation Management Administration will read

the Departme nt’s stateme nt into the record.

After

______ is finished reading the Department’s statement, I will first call

on any elected official or government official who wants to make a statement.

Then, I will call upon anyone else who indicated on the sign

- in sheet that he or she

would like to make a statement.

### 3 When giving your statement, please come up to the table, identify yourself

and your affiliation, and give your statement loudly and clearly so the court

reporter is sure to catch your words. Hearing procedure does not call for question

and answer sessions. Statements recorded at this hearing event will be answered in

writing and published with the final State Implementation Plan document. Are

there any procedural questions?

Once all questions have been taken

-- i f there are any

-- you are ready to

begin.

If the court reporter would begin we will go on record to receive comment.

-

_______ will proceed with the Department’s statement. Again, there are copies on

the back table you may use to read along.

(While

____ _ re ads her statement you get up and walk to the back and pick

up the sign in sheets. You are looking to see who said they would like to make

a comment. When he is finished his presentation, you thank him and look to

call on any elected officials who want ed to make a statement first. If there are

no elected officials, you call on the first person that wanted to comment. )

### 4 I will now call on

.
After calling on all those who wanted to make a statement say the following:

Now is there anyone who would like to make a statement, but did not

indicate so on the sign

- in sheet?

(If no one wants to make statement , say: )

No one has indicated that they wish to make a statement, is there anyone

who would now like to make a statement, even if they did not indicate so on the

sign

- in sheets.

(After all statements have been presented, say )

Let the record reflect that a statement has been taken from all who wish to

make one. This will conclude this public hearing. Let the record reflect tha t it is

now (The correct time) o'clock and this hearing on the State Implementation Plan

stands closed at the end of th ese proceedings on October 7 , 2013 . Also, at 5:00 pm

today, the official comment period for the document of record will completely

clos e.

### 5 

## PUBLIC HEARING



## WHAT TO SAY IF NOBODY SHOWS FOR THE HEARING

§ WAIT AT LEAST 30 MINUTES BEFORE YOU DO ANYTHING !!!



## IF THE COURT REPORTER WOULD PLEASE TURN ON THE

NECESSARY EQUIPMENT : LET THE RECORD SHOW THAT the time is

now XXX o’clock on October 7 , 2013 . This hearing was scheduled for a 1 :00

p m start time. There are currently no persons in the audience wishing to make
any statements on the record so we request that the court reporter please enter
the hearing statement into the record at this time . This public hearing is now

closed. Also, at 5:00 pm today, t he official comment period for the document of

r ecord will close

.1 Statement of the Air and Radiation Management Administration Maryland Department of the Environment For the Public Hearing concerning the Baltimore Nonattainment Area PM2.5 Redesignation Request and Maintenance Plan

October 7 , 2013

Good Afternoon. My name is Molly Berger . I am a Natural Resources Planner in the SIP Development & Emissions Inventory Division, Air Quality Planning Program of the Air & Radiation Management Administration, Maryland Department of the Environment.

This public hearing is related to the air quality plan en titled the Baltimore Nonattainment Area PM2.5 Redesignation Request and Maintenance Plan

This public hearing is being held pursuant to federal law found at 42 U. S. C. § 7410(a) and 40 CFR Parts 51.102 and 251. It is also being held in conformance with the State Administrative Procedure Act, under the State Government Artic le, beginning at Section 10

- 101.

Notice of this public hearing appeared on t he Maryland Department of the Environment's website on September 6

, 2013

, a nd remained on the website to the date of today's hearing.

Copies of each of the public hearing notices and the proposed SIP revision will be part of the formal hearing record. Access to the proposed document was made available via the website of the Mary land Department of the Environment. Hard copies were also available at the Maryland Department of the Environment

.
The purpose of this hearing is to provide the public with an opportunity to formally comment on the proposed document.

-----------------
The Clean Air Act was passed in 1970 to protect public health and welfare. Congress amended the Act in 1990 to establish requirements for areas not meeting the National Ambient Air Qua lity Standards (NAAQS). The Clean Air Act Amendments established a proce ss for evaluating air quality in each region and identifying nonattainment areas according to the severity of its air pollution problem. The Clean Air Act sets health standards for six ambient pollutants: carbon monoxide, sulfur dioxide, nitrogen oxides,

o zone, lead and particulate matter. The Environmental Protection Agency establishes rules and regulations to implement the Clean Air Act.

The State of Maryland requests that the United States Environmental Protection Agency (USEPA) redesignate the Baltimor e, MD 1997 fine particulate (PM2.5) nonattainment area to attainment for this standard pursuant to the provisions under § 107 of the federal Clean Air Act (CAA). Since the designations for the National Ambient Air Quality Standards (NAAQS) for this polluta nt were published (Federal Register, Vol. 70, No. 3, 1/5/2005), the area’s PM2.5 air quality has improved due to permanent2 and enforceable emission reductions. Air quality in the area is significantly better than required by this standard. Due to the impro vement in PM2.5 air quality, the USEPA finalized a clean data determination for the Baltimore area on May 22, 2012 (Federal Register, Vol. 77, No. 99, 5/22/2012). The State of Maryland is also requesting that USEPA concurrently approve, as a revision to th e state implementation plan (SIP) for each state, the related § 175A maintenance plan. This plan ensures that good PM2.5 air quality will be maintained through 2025.

CONSIDERATION OF COMMENTS The Department will consider all pertinent comments, and revis e the proposed plan if necessary, before making a final decision to adopt the plan and submit it to the U.S. Environmental Protection Agency for approval as a Maryland State Implementation Plan

. Oral and w ritten comments m ay be presented at this hearing

. The 30

- day public comment period that began on September 6 , 2013

, for receipt of all comments to the plan will close at 5:00 PM today.

# In the Matter of:



# Maryland Department of the Environment

October 7, 2013 Public Hearing

Condensed Transcript with Word Index



## For The Record, Inc. (301) 870-8025 - www.ftrinc.net - (800) 921-5555

### Public Hearing Maryland Department of the Environment 10/7/2013

(301) 870-8025 - www.ftrinc.net - (800) 921-5555 For The Record, Inc. 1 (Pages 1 to 4) 1

1 MARYLAND DEPARTMENT OF THE ENVIRONMENT

2 AIR AND RADIATION MANAGEMENT ADMINISTRATION

3

4

5 PUBLIC HEARING

6 BALTIMORE NONATTAINMENT AREA PM2.5

7 REDESIGNATION REQUEST AND MAINTENANCE PLAN

8 BALTIMORE, MARYLAND

9

10

11

12 OCTOBER 7, 2013

13 1:00 p.m.

14

15

16 MARYLAND DEPARTMENT OF THE ENVIRONMENT

17 1800 WASHINGTON BOULEVARD

18 BALTIMORE, MARYLAND 21230

19

20

21 Reported by: Kathleen Vetters

22

2

1 A T T E N D E E S

2

3 Ms. Mary Jane Rutkowski, MDE

4 Ms. Molly Berger, MDE

5 Ms. Sara Tomlinson, Baltimore Metropolitan Council

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22 3

1 P R O C E E D I N G S

2 - - - - -

3 MS. RUTKOWSKI: If the court reporter would

4 turn on the equipment we will begin. Good afternoon. On

5 behalf of the Maryland Department of the Environment, Air

6 and Radiation Management Administration, I would like to

7 welcome everyone present to this public hearing.

8 This public hearing is being held pursuant to

9 federal law found at 42 U.S.C. Section 7410(a) and

10 40 CFR Parts 51.102 and 251. It is also being held in

11 conformance with the State Administrative Procedure Act

12 under the State Government Article, beginning at Section

13 10-101. Notice was also posted on the Maryland Department

14 of the Environment's website starting on September 6,

15 2013.

16 My name is Mary Jane Rutkowski. I am a Natural

17 Resources Planner with the Air and Radiation Management

18 Administration's Air Quality Planning Program. I will

19 serve as hearing officer this afternoon. A full copy of

20 the proposed SIP is available on the back table.

21 This hearing will proceed in the following

22 order. First, Molly Berger, a Natural Resources Planner

4

1 with the Air Quality Planning Program of the Air and

2 Radiation Management Administration, will read the

3 Department's statement into the record.

4 After Molly is finished reading the

5 Department's statement I will call on any elected

6 officials. Then, I will call upon anyone else who

7 indicated on the sign-in sheet that he or she would like

8 to make a statement. The hearing procedure does not call

9 for question and answer sessions. Statements recorded at

10 this hearing event will be answered in writing and

11 published with the final State Implementation Plan

12 document. Are there any procedural questions?

13 MS. TOMLINSON: No.

14 MS. RUTKOWSKI: Okay. If the court reporter

15 would begin, we will go on record to receive comments.

16 Molly will proceed with the Department's statement.

17 MS. BERGER: Good afternoon. My name is Molly

18 Berger. I am a Natural Resources Planner in the SIP

19 Development and Emissions Inventory Division, Air Quality

20 Planning Program of the Air and Radiation Management

21 Administration, Maryland Department of the Environment.

22 This public hearing is related to the air

### Public Hearing Maryland Department of the Environment 10/7/2013

(301) 870-8025 - www.ftrinc.net - (800) 921-5555 For The Record, Inc. 2 (Pages 5 to 8) 5
1 quality plan entitled the Baltimore Nonattainment Area 2 PM2.5 Redesignation Request and Maintenance Plan. 3 This public hearing is being held pursuant to 4 federal law found at 42 U.S.C. Section 7410(a) and 5 40 CFR Parts 51.102 and 251. It is also being held in
6 conformance with the State Administrative Procedure Act 7 under the State Government Article, beginning at Section
8 10-101. 9 Notice of this public hearing appeared on the 10 Maryland Department of the Environment's website on 11 September 6, 2013, and remained on the website to the 12 date of today's hearing. 13 Copies of each of the public hearing notices 14 and the proposed SIP revision will be part of the formal 15 hearing record. Access to the proposed document was made 16 available via the website of the Maryland Department of 17 the Environment. Hard copies were also available at the 18 Maryland Department of the Environment. 19 The purpose of this hearing is to provide the 20 public with an opportunity to formally comment on the 21 proposed document. 22 The Clean Air Act was passed in 1970 to protect

6

1 public health and welfare. Congress amended the Act in 2 1990 to establish requirements for areas not meeting the 3 National Ambient Air Quality Standards. The Clean Air Act 4 Amendments established a process for evaluating air 5 quality in each region and identifying nonattainment 6 areas according to the severity of its air pollution 7 problem.
8 The Clean Air Act sets health standards for six 9 ambient pollutants: carbon monoxide, sulfur dioxide, 10 nitrogen oxides, ozone, lead, and particulate matter. The 11 Environmental Protection Agency establishes rules and 12 regulations to implement the Clean Air Act. 13 The State of Maryland requests that the United 14 States Environmental Protection Agency redesignate the 15 Baltimore, Maryland 1997 fine particulate nonattainment 16 area to attainment for this standard pursuant to the 17 provisions under Section 107 of the federal Clean Air
18 Act. 19 Since the designations for the National Ambient 20 Air Quality Standards for this pollutant were published, 21 the area's PM2.5 air quality has improved due to permanent 22 and enforceable emission reductions. Air quality in the 7
1 area is significantly better than required by this
2 standard. 3 Due to the improvement in PM2.5 air quality, the 4 United States Environmental Protection Agency finalized a 5 clean data determination for the Baltimore area on May 22, 6 2012. The State of Maryland is also requesting that 7 United States EPA concurrently approve, as a revision to 8 the state implementation plan for each state, the related 9 Section 175A maintenance plan. This plan ensures that good 10 PM2.5 air quality will be maintained through 2025. 11 The Department will consider all pertinent 12 comments and revise the proposed plan, if necessary, 13 before making a final decision to adopt the plan and 14 submit it to the U.S. Environmental Protection Agency for 15 approval as a Maryland State Implementation Plan. Oral 16 and written comments may be presented at this hearing. 17 The 30-day public comment period that began on September 18 6, 2013 for receipt of all comments to the plan will 19 close at 5:00 p.m. today. 20 MS. RUTKOWSKI: Maybe we want to go off the
21 record now for a little while. 22 (Off the record.)

8

1 MS. RUTKOWSKI: Okay. Back on the record. 2 No one has indicated that they wish to make a statement. 3 Is there anyone who would now like to make a statement, 4 even if they did not indicate so on the sign-in sheets?
5 Let the record reflect that a statement has
6 been taken from all who wish to make one. This will 7 conclude this public hearing. Let the record reflect 8 that it is now 1:31 p.m. and this hearing on the State 9 Implementation Plan stands closed at the end of these 10 proceedings on October 7, 2013. Also, at 5:00 p.m. today 11 the official comment period for the document of record 12 will completely close. 13 (Whereupon, the public 14 hearing was concluded.)
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22

### Public Hearing Maryland Department of the Environment 10/7/2013

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1 CERTIFICATE OF COURT REPORTER
2 3 I, Kathleen Vetters, a Notary Public of the 4 State of Maryland, County of Baltimore, do hereby certify 5 the foregoing proceeding was recorded verbatim by me and 6 this transcript is a true record of the proceedings. 7 I further certify that I am not of counsel to 8 any of the parties, nor in any way interested in the
9 outcome of this action. 10 As witness my hand and notarial seal this 11 21st day of October, 2013.
12 13 ___________________________________ 14 KATHLEEN VETTERS, Court Reporter
15 NOTARY PUBLIC
16 17 My Commission Expires: November 19, 2015
18
19
20
21
22

### Public Hearing Maryland Department of the Environment 10/7/2013

(301) 870-8025 - www.ftrinc.net - (800) 921-5555 For The Record, Inc. [10]

A Access 5:15 Act 3:11 5:6,22 6:1

6:3,8,12,18 action 9:9 Administration 1:2

3:6 4:2,21 Administration's

3:18 Administrative 3:11

5:6 adopt 7:13 afternoon 3:4,19

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7:14 air 1:2 3:5,17,18 4:1

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answer 4:9 answered 4:10 appeared 5:9 approval 7:15
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5:17

B back 3:20 8:1 Baltimore 1:6,8,18

2:5 5:1 6:15 7:5 9:4 began 7:17 beginning 3:12 5:7 behalf 3:5 Berger 2:4 3:22 4:17

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6:17 7:5 close 7:19 8:12 closed 8:9 comment 5:20 7:17

8:11 comments 4:15 7:12

7:16,18 Commission 9:17 completely 8:12 conclude 8:7 concluded 8:14 concurrently 7:7 conformance 3:11

5:6 Congress 6:1 consider 7:11 copies 5:13,17
copy 3:19 Council 2:5 counsel 9:7 County 9:4 court 3:3 4:14 9:1

9:14

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3:5,13 4:21 5:10 5:16,18 7:11 Department's 4:3,5

4:16 designations 6:19 determination 7:5 Development 4:19 dioxide 6:9 Division 4:19 document 4:12 5:15

5:21 8:11 due 6:21 7:3

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3:5 4:21 5:17,18 Environment's 3:14

5:10 Environmental 6:11

6:14 7:4,14 EPA 7:7 equipment 3:4 establish 6:2 established 6:4 establishes 6:11 evaluating 6:4 event 4:10 Expires 9:17

F federal 3:9 5:4 6:17 final 4:11 7:13 finalized 7:4 fine 6:15 finished 4:4 First 3:22 following 3:21 foregoing 9:5 formal 5:14 formally 5:20 found 3:9 5:4 full 3:19 further 9:7

G G 3:1
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3:21 4:8,10,22 5:3 5:9,12,13,15,19 7:16 8:7,8,14 held 3:8,10 5:3,5

I identifying 6:5 implement 6:12 implementation

4:11 7:8,15 8:9 improved 6:21 improvement 7:3 indicate 8:4 indicated 4:7 8:2 interested 9:8 Inventory 4:19

J Jane 2:3 3:16

K Kathleen 1:21 9:3

9:14

L law 3:9 5:4 lead 6:10 little 7:21

M maintained 7:10 maintenance 1:7 5:2

7:9 making 7:13 Management 1:2

3:6,17 4:2,20 Mary 2:3 3:16 Maryland 1:1,8,16 1:18 3:5,13 4:21 5:10,16,18 6:13,15 7:6,15 9:4 matter 6:10 MDE 2:3,4 meeting 6:2 Metropolitan 2:5 Molly 2:4 3:22 4:4

4:16,17 monoxide 6:9

N N 2:1 3:1

name 3:16 4:17 National 6:3,19 Natural 3:16,22

4:18
necessary 7:12 nitrogen 6:10 nonattainment 1:6

5:1 6:5,15 notarial 9:10 Notary 9:3,15 Notice 3:13 5:9 notices 5:13 November 9:17

O O 3:1 October 1:12 8:10

9:11 officer 3:19 official 8:11 officials 4:6 Okay 4:14 8:1 opportunity 5:20 Oral 7:15 order 3:22 outcome 9:9 oxides 6:10

ozone 6:10

P P 3:1
p.m 1:13 7:19 8:8,10 part 5:14

### Public Hearing Maryland Department of the Environment 10/7/2013

(301) 870-8025 - www.ftrinc.net - (800) 921-5555 For The Record, Inc. [11]

particulate 6:10,15 parties 9:8 Parts 3:10 5:5 passed 5:22 period 7:17 8:11 permanent 6:21 pertinent 7:11 plan 1:7 4:11 5:1,2

7:8,9,9,12,13,15 7:18 8:9 Planner 3:17,22

4:18 Planning 3:18 4:1

4:20 PM2.5 1:6 5:2 6:21

7:3,10 pollutant 6:20 pollutants 6:9 pollution 6:6 posted 3:13 present 3:7 presented 7:16 problem 6:7 procedural 4:12 procedure 3:11 4:8

5:6 proceed 3:21 4:16 proceeding 9:5 proceedings 8:10

9:6
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4:20 proposed 3:20 5:14

5:15,21 7:12 protect 5:22 Protection 6:11,14

7:4,14 provide 5:19 provisions 6:17 public 1:5 3:7,8 4:22

5:3,9,13,20 6:1 7:17 8:7,13 9:3,15 published 4:11 6:20
purpose 5:19 pursuant 3:8 5:3

6:16 Q quality 3:18 4:1,19

5:1 6:3,5,20,21,22 7:3,10 question 4:9 questions 4:12

R R 3:1 Radiation 1:2 3:6,17

4:2,20 read 4:2 reading 4:4 receipt 7:18 receive 4:15 record 4:3,15 5:15

7:21,22 8:1,5,7,11 9:6 recorded 4:9 9:5 redesignate 6:14 Redesignation 1:7

5:2 reductions 6:22 reflect 8:5,7 region 6:5 regulations 6:12 related 4:22 7:8 remained 5:11 Reported 1:21 reporter 3:3 4:14

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4:18 revise 7:12 revision 5:14 7:7 rules 6:11 Rutkowski 2:3 3:3

3:16 4:14 7:20 8:1

S S 2:1 3:1 Sara 2:5 seal 9:10 Section 3:9,12 5:4,7

6:17 7:9 September 3:14

5:11 7:17

serve 3:19 sessions 4:9 sets 6:8 severity 6:6 sheet 4:7 sheets 8:4 sign-in 4:7 8:4 significantly 7:1 SIP 3:20 4:18 5:14 six 6:8 standard 6:16 7:2 standards 6:3,8,20 stands 8:9 starting 3:14 state 3:11,12 4:11

5:6,7 6:13 7:6,8,8 7:15 8:8 9:4 statement 4:3,5,8,16

8:2,3,5 Statements 4:9 States 6:14 7:4,7 submit 7:14 sulfur 6:9

T T 2:1,1 table 3:20 taken 8:6 today 7:19 8:10 today's 5:12 Tomlinson 2:5 4:13 transcript 9:6 true 9:6 turn 3:4

U U.S 7:14 U.S.C 3:9 5:4 United 6:13 7:4,7

V verbatim 9:5 Vetters 1:21 9:3,14

W
want 7:20 WASHINGTON 1:17
way 9:8 website 3:14 5:10,11

5:16 welcome 3:7 welfare 6:1 wish 8:2,6 witness 9:10 writing 4:10 written 7:16

X

Y

Z

0

1 1:00 1:13 1:31 8:8 10-101 3:13 5:8 107 6:17 175A 7:9 1800 1:17 19 9:17 1970 5:22 1990 6:2 1997 6:15

2 2012 7:6 2013 1:12 3:15 5:11

7:18 8:10 9:11 2015 9:17 2025 7:10 21230 1:18 21st 9:11 22 7:5 251 3:10 5:5

3 30-day 7:17

4 40 3:10 5:5 42 3:9 5:4

5 5:00 7:19 8:10 51.102 3:10 5:5

6 6 3:14 5:11 7:18

7 7 1:12 8:10 7410(a) 3:9 5:4MARYLAND DEPARTMENT OF THE ENVIRONMENT AIR AND RADIATION MANAGEMENT ADMINISTRATION

PUBLIC HEARING CONCERNING: 

# Baltimore Nonattainment Area PM2.5 Redesignation Request and Maintenance Plan

October 7 , 2013

Name (please print) Signature Organization or Affiliation Address Do You Wish To Testify? How did you find out about this he aring ? 

## No persons attended this hearing.UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION Ill 1650 Arch Street Philadelphia, Pennsylvania 19103-2029

Mr. George S. A bum, Director Air & Radiation Management Administration Maryland Department of the Environment 1800 Washington Boulevard Baltimore, Maryland**21230~** 1720

Dear Mr. Abum: 

### SEP 3 0 2013

Thank you for giving the U.S. Environmental Protections Agency (EPA) the opportunity

to review the proposed "Baltimore Nonattainment Area PM 2 .s Redesignation Request," dated May 28, 2013, and "Baltimore Nonattainment Area PM 2

. 5 Maintenance Plan," dated May 27, 2013. EPA has reviewed the proposed**re~esignation** request and maintenance plan. Our
comments are enclosed.

Please enter these comments into the public record. We look forward to working with
you to resolve these comments. Should you have any questions pertaining to EPA's review of Maryland's proposed redesignation request and maintenance plan for the Baltimore 1997 PM 2

. 5 nonattainment area, please do not hesitate to contact me. If members of your staff have questions, they may direct them to Ms. Maria A. Pino at (215)**814~2181.**


### Sincerely,**~**

# 12;~ Director Air Protection Division

Enclosure



### !j Printed on 100% recycled/recyclable paper with I 00% post-consumer fiber and process chlorine free. Customer Service Hotline: 1-800-438-2474EPA comments on Maryland's proposed "Baltimore Nonattainment Area PM2.s Redesignation Request," dated May 27, 2013 and "Baltimore Nonattainment Area PM2.s Maintenance Plan," dated May 28, 2013

Redesignation Request

Introduction This section contains an ambiguous statement. "The State of Maryland is also requesting that USEP A concurrently approve, as a revision to the state implementation plan (SIP) (or each state, the related § 175A maintenance plan."

Section 2.2 Baltimore, MD N onattainment Designation There is an erroneous statement regarding the course particulate matter (PM10) standard. "U.S. EPA replaced the existing PM1 0 standard with a health-based PM2.5 standard and retained the PM 1 0 standard as a particulate standard protecting welfare." While EPA did issue new primary (health-based) fine particulate (PM2_ 5 ) standards in 1997, it did not eliminate the primary standard for PM 10

.

Section 3.1 Attainment of the Standard This section references determining attainment based on the average annual number of expected exceedances being less than or equal to one. The 1997 annual PM 2

. 5 NAAQS is met when the annual design value is less than or equal to 15.0 micrograms per cubic meter {!.tg!m\ and is not based on expected exceedances.

Sections 3.1.3 2012 monitoring data has been quality assured and is available in EPA's Air Quality System (AQS). 2012 data and 2010-2012 design values should be included in the redesignation request.

3.5.1 Demonstration of Compliance While a requirement for redesignation is that the area has a fully approved SIP under 11 0 and Part D, EPA has done numerous rulemakings where we state that for redesignations, only elements linked to the area's nonattainment status are relevant for redesignation. In other words, if the requirement is still applicable regardless of an areas nonattainment or attainment designation, approval of that element should not be a prerequisite for redesignation. The requirements of section 11 0( a )(2) are statewide requirements that are not linked to the PM2.s nonattainment status. Therefore, these SIP elements are not applicable requirements for
purposes of review of the state's PM 2

. 5 redesignation request. Please see EPA's proposed approval ofthe Ohio1997 PM 2

_ 5 redesignation request for the Huntington-Ashland Area (76 FR 79593) http:/ /www.gpo.gov/fdsys/pkg/FR-20 11-12-22/pdf/20 11-32819 .pdf (3rd page, #79595).Maintenance Plan

General Comment: EPA's Final Clean Air Fine Particle Implementation Rule (72 FR 20586, April25, 2007) contained rebuttable presumptions concerning certain PM 2

. 5 precursors applicable to attainment plans and control measures related to those plans. The proposed redesignation request and maintenance plan reference this rebuttable presumption regarding volatile organic compounds (VOCs) and ammonia (NH3) and state that these precursors were determined to be insignificant for the PM 2

. 5 NAAQS in the nonattainment area. However, on January 4, 2013, in Natural Resources Defense Council v. EPA, the D.C. Circuit Court remanded to EPA the PM2.s implementation rule. In light of this remand, the maintenance plan should assess the potential role ofVOC and ammonia in demonstrating continued maintenance in this area. Therefore, at a minimum, the maintenance plan should include the 2007,2017, and 2025 VOC and NH3
I inventories contained in Appendix G: Information Addressing NRDC v. EPA, Case No. 08-1250.

Emissions Inventories:

• Page 10: There is a missing link for the detailed accounting ofthe emissions inventory.

• Page 11: There is a missing link for the detailed accounting of their projection year inventory.

• Appendix D is labeled as Emission Inventory documentation however; it only contains documentation for the 2025 projection inventory. Documentation for the 2007 attainment
year inventory and the 2017 interim year inventory must be included.

• When submitting the final documentation, please submit the emission inventories in Excel format.

4.6.1 Budget Level for On-Road Mobile Source Emissions Please include a table that enumerates the safety margins so that the reader can follow the difference between the modeled motor vehicle emissions and the added safety margins.

4.7.2 Near Term Contingency Measures for Air Quality Exceedances Have the emission reductions discussed in this section, which were supposed to occur in January 2013, taken place? If so, this section should be updated to reflect that.

2MARYLAND DEPARTMENT OF THE ENVIRONMENT RESPONSE TO COMMENTS for the PUBLIC HEARING and SUBMISSION

Hearing held on October 7, 2013 in Baltimore , Maryland in relation to:

Baltimore , MD Nonattainment Area PM2.5 Redesignation Request and Maintenance Plan

N O COMMENTS WERE RECEIVED AT THE HEARING.

The following comments were received from the Unites States Environmental Protection Agency, Region III in a letter dated September 30, 2013. The Department of the Environment’s responses follow each comment.



## Redes ignation	Request
Introduction Comment: This section contains an ambiguous statement. "The State of Maryland is also requesting that US EPA concurrently approve, as a revision to the state implementation plan (SIP) for each state , the related§175A maintenan ce plan."

Response: The Department agrees with the comment. The phrase, “for each state”, has been deleted from the text.

Section 2.2 Baltimore , MD Nonattainment Designation Comment: There is an erroneous statement regarding the course particulate matter (PM10) standard. "U.S. EPA replaced the existing PM10 standard with, a health

- based PM 2.5 standard and retained the PM1 0 standard as a particulate standard protecting welfare." While EPA did issue new primary (health

- based) fine particulate (PM 2.5 ) stand ards in 1997, it did not eliminat e the primary standard for PM10.

Response: The Department agrees with the comment. The text has been corrected to read, “U

. S

. EPA issued a new primary (health

- based) PM2.5 standard and retained the primary PM10 standard.”

Section 3.1 Attainment of the Standard Comment: This section references determining attainment based on the average annual number of expected exceedances being less than or equal to one. The 1997 annual PM 2.5 NAAQS is met when the annual design va lue is l ess than or equal to 15 .0 micrograms per cubic meter ( μ g/m 3 ) and is not based on expected exceedances.Response: The Department agrees with the comment. The text has been replaced with the statement, “The 1997 annual PM 2.5 NAAQS is met when the annual design value is less than or equal to 15.0 micrograms per cubic meter ( μ g/m 3 ).”

Sections 3.1 Attainment of the Standard Comment: This section references determining attainment based on the average annual number of expected exceedances being less than or equal to one. The 1997 annual PM2.5 NAAQS is met when the annual design value is less than or equal to 15.0 micrograms per cubic meter ( μ g/m 3 ) , and is not based on expected exceedances.

Response : The Department agrees with this comment

. The text has been revised to read. “ The 1997 annual PM2.5 NAAQS is met when the annual design value is less than or equal to the 15.0 micro grams per cubic meter (μg/m3).”

Sections 3.1.3 Comment: 2012 monitoring data has been quality assured and is available in EPA’s Air Quality System (AQS). 2012 data and 2010

- 2012 design values should be included in the redesignation request.

Response: The Department agrees with this comment. 2012 data and 2010

- 2012 design values are included in the redesignation request

. 3.5.1 Demonstration of Compliance Comment: While a requirement for redesi gnation is that the area has a fully approved SIP under 1 10 and Part D, EPA has done numerous rulemakings where we state that for redesignations, only elements linked to the area's nonattainment status are relevant for redesignation. In other words, if the requirement is still applicable regardless of an areas nonattainment or attainment designation, approval of that element should not be a prerequisite for redesignation. The requirements of section 110 (a)(2) are stat e wide requirements that are not linked t o the PM 2.5 nonattainment status. Therefore, these SIP elements are not applicable requirements for purposes of review of the state's PM 2.5 redesignation request. Please see EPA's proposed approval of the Ohio 1997 PM 2.5 redesignation request for the Hunti ngton

- Ashland Area (76 FR79593) http://www.gpo.gov/fdsys/pkg/FR

- 20 11

- 12

- 22/pdf/2011

- 32819.pdf (3rd page, #79595).

Response: The Department agrees with the comment. The table that references section 110(a)(2) has been deleted from the text.

## Maintenance	Pl an

General Comment: EPA's Final Clean Air Fine Particle Implementation Rule (72 FR 20586, April25, 2007) contained rebuttable presumptions concerning certain PM2.5 precursors applicable to attainment plans and control measures related to those plans. The proposed redesignation request and maintenance plan reference this rebuttable presumption regarding volatile organic compounds (VOCs) and ammonia (NH3) and state that these precursors were determined to be insignificant for the PM2.s NAAQS in the nonattain ment area. However, on January 4, 2013, in Natural Resources Defense Council v. EPA, the D.C. Circuit Court remanded to EPA the PM2.5 implementation rule. In light of this remand, the maintenance plan should assess the potential role of VOC and ammonia in demonstrating continued maintenance in this area. Therefore, at a minimum, the maintenance plan should include the 2007, 2017, and 2025 VOC and NH3 inventories contained in Appendix G: Information Addressing NRDC v. EPA, Case No. 08

- 1250.

Response: The De partment agrees with this comment. The document has been modified on page 8 to incorporate this comment and a f ootnote has been added to page 9

.

Emissions Inventories Comment: Page 10: There is a missing link for the detailed accounting of the emissions i nventory. Page 11: There is a missing link for the detailed accounting of their projection year inventory.

Response: The Department agrees with this comment. The links have been corrected.

Comment: Appendix D is labeled as Emission Inventory documentatio n however; it only contains documentation for the 2025 projection inventory. Documentation for the 2007 attainment year inventory and the 2017 interim year inventory must be included.

Response: Documentation for the 2007 and 2017 inventories may be found in Appendix D beginning on page 81.

Comment: When submitting the final documentation, please submit the emission inventories in Excel format.

Reply: The Department will submit the emi ssions inventories in Excel format.4.6.1 Budget Level for On

- Road Mobile Source Emissions Comment: Please include a table that enumerates the safety margins so that the reader can follow the difference between the modeled motor vehicle emissions and the added safety margins.

Response: The reader may enumerate the safety margins by calculating the percent difference between the mobile source emissions budgets presented in Tables 4

- 3 (without Mobile budget) and 4

- 6 (with Mobile budget)

.

4.7.2 Near Term C ontingency Measures for Air Quality Exceedances Comment: Have the emission reductions discussed in this section, which were supposed to occur in January 2013, taken place? If so, this section should be updated to reflect that.

Response: The Department agr ees with this comment. The text has been revised to account for emissions reductions that took place in January, 2013.