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I n September 2004 at East-West Gateway, the Missouri Department of Natural Resources
(MoDNR) and the Illinois Environmental Protection Agency (IEPA) hosted a kickoff meeting with local stakeholders to discuss the steps
involved in the preparation of the Missouri and Illinois St. Louis Area State Implementation Plans (SIPs) for both the eight-hour ozone and
PM 2.5 standards. The 8-hour ozone SIPs are to be submitted to the U.S. Environmental Protection Agency (USEPA) by June 15, 2007. The
St. Louis region is to be in attainment of the eight-hour ozone standard by June 2010 which means the controls have to be in place in 2009,
before the start of the ozone season in April 2010. The PM 2.5 SIPs are due to USEPA in April 2008 and the attainment date is 2010.
Two technical work groups, the Control Strategy Work Group and the Modeling and Data Analysis (Technical) Work Group, were established.  They will assist the states in identifying and evaluating emission control strategies and in the
preparation of modeling protocol, selection of a photochemical model and performing model runs.
The Air Quality Advisory Committee (AQAC) of East-West Gateway has traditionally focused on
transportation planning, identification of Transportation Control Measures (TCMs) and transportation air quality conformity determination. However in the 8-hour ozone SIP
development process, the AQAC will also have a role in the identification of control strategies and information sharing. Both work groups will report and inform the AQAC on their respective
activities and progress to date. The AQAC will act as a public forum and sounding board for the various control strategies developed by the two work groups.
Draft Illinois and Missouri 8-Hour Ozone State Implementation Plans
The Illinois Environmental Protection Agency (Illinois EPA) held a public hearing on May 3, 2007 for the purpose of gathering public comment on the draft ozone Attainment Demonstration and the
draft motor vehicle emissions budgets. The Attainment Demonstration contains the State's plan for attaining the 8-hour ozone National Ambient Air Quality Standard (NAAQS) in Jersey, Madison,
Monroe, and St. Clair counties. Illinois EPA is proposing to submit the Attainment Demonstration and the draft motor vehicle emissions budgets to the U.S. EPA as State Implementation Plan (SIP)
revisions to meet the requirements of the federal Clean Air Act (CAA) to achieve the NAAQS for 8-hour ozone.
The Missouri Air Conservation Commission held a public hearing during their meeting on April 26, 2007 for the purpose of gathering public comment on the proposed 2007 Revision of the SIP for
the St. Louis 8-Hour Ozone Non-attainment Area. This area includes the City of St. Louis, St. Louis, St. Charles, Jefferson and Franklin counties.
Technical Work Group
The Technical Work Group is composed of representatives from the state air agencies, U.S. Environmental Protection Agency, affected businesses, business groups, East-West Gateway and
other interested organizations and individuals. The group has been working since last fall on preparing model protocol, assembling meteorological information, finalizing the 2002 base year
emissions inventory and selecting (and validating) photochemical grid model to be used in SIP development. Modeling centers at MoDNR, IEPA, Ameren and USEPA Region 7 are evaluating
meteorological and photochemical models and will perform model runs. The model domain encompasses all of the U.S. east of the Rocky Mountains. Four 10-day episodes in 2002 have
been selected, three in summer and one in winter which will be used to quality assure of the various model preprocessors/components. MoDNR has hired a consultant to help resolved v arious emissions inventory issues and to assist the work group in merging emissions
inventories from the Midwest Regional Planning Organization (MRPO) and the Central States Regional Air Partnership (CENRAP). MRPO and CENRAP are multi-state organizations working on
regional haze and related air quality issues.
When all of the model preprocessors and model have been validated, the group will begin to run the photochemical model with control strategies which are on the books and see if it shows that the area
can reach attainment. The next run would include control strategies which will likely happen before 2009 such as the Clean Air Interstate Rule, the
oxides of nitrogen (NO x) SIP call and low sulfur fuels. If these model runs which will incorporate these control strategies do not show the area in attainment, then the states will have to consider
additional control strategies.
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Participants
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Meeting Agendas and Notes
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Presentations:
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- June 4, 2007 Joint Meeting of Technical Work
Group and Control Strategy Work Group
- Summary of St. Louis PM2.5 Base4 Modeling using CAMx and CMAQ
models, Environ International Corporarion
- 2002 Base5 PM-2.5 Emissions and Preliminary PM-2.5 CMAQ Base4
Vs. Base5 Model Performance Evaluation and PM-2.5 Control Rulemaking Schedule, Missouri Department of Natural Resources
- Observational Data Analysis to Support PM2.5 SIP Development
- October 2004:
- December 2004:
- January 2005:
- November 2005:
- 2002 Basecase Ozone Modeling
- PM2.5 PMF Analysis
- 2002 Annual 8-Hour Ozone/Episodic PM2.5 Modeling
- PM2.5 PMF Analysis
- Ozone Source Apportionment
- USEPA Final Modeling Guidance
- Missouri Department of Natural Resources Presentations
- March 20, 2006 - Joint Meeting of Technical Work Group and Control Strategy Work
Group:
- 2002 Basecase Modeling Emissions Update - Jeff
Sprague, I-EPA; Adel Alsharif, MoDNR; Wendy Vit, MoDNR
- Diagnostic Ozone Sensitivity Tests for the St. Louis 8-Hour Ozone
and PM2.5 Study - Ralph Morris, Environ International Corp.
- St. Louis 8-Hour Ozone/PM2.5 Air Quality Model Performance Update - Jeff Bennett, MoDNR; Steve King, I-EPA
- Draft 2009 On-the-Book (Control Strategies) Emissions Inventory - Adel Alsharif, MoDNR; Wendy Vit, MoDNR
- Interim 2009 8-Hour Ozone Design Value Projections and Ozone/PM2.5 Source
Apportionment for St. Louis - Ralph Morris, Environ International Corporation
- Reasonable Available Control Technology Element and Reasonable Further Progress
Element of Phase II Ozone Implementation Rule - John Rustige, MoDNR
- A Summary of St. Louis PM2.5 Source Apportionment - Brett Anderson, USEPA
Region 7; Terry Rowles, MoDNR
- September 26, 2006 - Joint Meeting of Technical Work Group and Control Strategy
Work Group:
- Final Ozone Modeling Emissions Inventory, MoDNR and IEPA
- Preliminary 2002 PM Modeling Performance Evaluation, Environ International Corporation
- PM2.5 Synoptic Climatology St. Louis MO, USEPA Region 7
- Observational Data Analysis to Support PM2.5 SIP Development, Washington University
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Control Strategy Work Group
The Control Strategy Work Group is composed of representatives from the state air agencies, USEPA, health organizations, environmental groups, East-West Gateway, business groups, state
transportation agency and other interested organizations and individuals. The mission of the work group is to develop a set of emissions control strategies which will help the area reach attainment
of the eight-hour ozone and the PM 2.5 standards. Controls currently on the books, potential federal actions and possible alternatives will all be considered. The work group and the
consultant are researching potential control strategies and associated emissions reductions and cost effectiveness. In addition, how the public is affected by a control strategy, the political
feasibility and the time needed to implement will also be considered. All of this information is to
be placed in a decision matrix. A special subcommittee is examining voluntary control measures
that could be taken in the short term to reduce emissions. These voluntary controls typically do not require special rule-making or lengthy regulatory process.
MoDNR has a web site with additional information on the eight-hour ozone and PM 2.5 SIP development process. The site's address is:
www.dnr.state.mo.us/ALPD/APCP/SIPWORKGRP/SIPGRPMAIN.HTM
Inspection and Maintenance (I/M) Work Group
Because of St. Louis' classification as a moderate eight-hour ozone standard non-attainment area, Federal rules will region that the St. Louis area have an I/M program post 2007. In Missouri, the
current I/M contract expires in August 2007. The purpose of this Work Group is to explore options
for a post 2007 I/M program in Missouri. Therefore, this effort is not focused on redesigning the current program but directed at developing a new and improved I/M program. The Missouri
Department of Natural Resources wants the new I/M program to reflect the needs of the stakeholders and balance environmental gains with customer convenience. Throughout the I/M
Work Group process, both the majority and minority (non-majority) views will be noted and documented. At the first meeting there were a number of federal and state presentations which
provided a foundation/background and introduced the stakeholders to the I/M design concepts, so that all have a common understanding and a starting point for future discussions and meetings.
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