Document ID: EPA-HQ-OAR-2008-0006-0011
Agency: epa
Document Type: Supporting & Related Material
Title: 
Posted Date: 2008-02-06T05:00Z

Shreveport-Bossier City Metropolitan Statistical Area

Early Action Compact			

Progress Report

December 31, 2007

Prepared for 

U.S. Environmental Protection Agency

Region 6

Dallas, Texas

Contents

1. Introduction 	1

2. Progress Toward Completion of Control Measure Implementation  	1

3. Air Quality Improvements  	1

4. Emissions Reductions  	2

5. Additional Updates  	3

1. Introduction

The U.S. Environmental Protection Agency (EPA) requires signatories of
Early Action Compacts (EAC) to prepare a progress report every six
months that describes the progress made to date against the EAC
milestones.  This progress report will summarize activities related to
the Shreveport – Bossier City Metropolitan Statistical Area’s EAC
during the period from July 1, 2007 through December 31, 2007.

2. Progress Toward Completion of Control Measure Implementation 

All EAC milestones have been fully implemented as planned.  Attached is
a copy of a letter from James Orgeron, Environmental Scientist Manager,
Plan Development Section, Louisiana Department of Environmental Quality,
certifying that all specific EAC applicable control measures for the
Shreveport area have been fully implemented as planned and will remain
in place through December 2007.

3.  Air Quality Improvements

As shown in the attached letter from Surasak Supatanasinkasem, Engineer
Manager, Air Analysis Section, Louisiana Department of Environmental
Quality, the DEQ has certified that ambient monitoring data through 2007
demonstrates attainment with the 8 hour ozone standard.  

4.  Emissions Reductions

Preliminary information continues to substantiate that significant
emissions reductions are being achieved as a result of the implemented
control measures.   Initial reports received from Johnson Controls, Inc.
indicate that energy savings of approximately 20,951,279 kWh of
electrical energy and 203,703 ccf of natural gas have been realized
during the period from mid-2004 through September of 2007 resulting from
the installation of energy conserving equipment in City of Shreveport
buildings.   According to the estimates provided to the City by JCI, 
emissions reductions attributable to these energy savings are in the
vicinity of 40 million pounds of pollutants (largely consisting of
greenhouse gas emissions such as CO2), including approximately 70,000
pounds of NOx.  

As stated in the June 30, 2007 report,  NOx and VOC reductions resulting
from the Centerpoint Energy plant modification and VOC reductions
resulting from the GM plant modification remain ongoing.   As previously
reported, the Centerpoint Energy facility in Bossier Parish
(historically one of the highest stationary source emitters of NOx in
Caddo and Bossier Parishes) was permitted to emit 1034.26 tons per year
of NOx and 89.41 tons per year of VOC in 2003, prior to implementation
of the plant modification.  By 2005, the permit for the facility had
been modified to limit NOx emissions to 67.17 tons per year and VOC
emissions to 20.42 tons per year.  Actual emissions reported for the
facility for 2005 were 50.79 tons of NOx and 17.89 tons VOC, and for
2006, actual emissions reported were 46.12 tons of NOx and 17.71 tons of
VOC.  

According to GM plant representatives, VOC emissions reductions of over
250 TPY (short of the goal of 500 TPY) were achieved in 2005 as a result
of the GM plant modification.  An additional 17.8% reduction in VOC
emissions (representing 134 tons) was documented for 2006, which moves
this facility  closer to (although still somewhat less than) the initial
stated goal of a 500 TPY emissions reduction goal. 

5.  Additional Updates

Stakeholders continue to be kept abreast of any pertinent issues during
the period via as needed, and no meetings were necessary during the
period.  No updates or revisions to modeling, technical analyses, or
planning activities occurred during the period.

The City of Shreveport is the government agency responsible for
implementing the following control measures:  landfill gas recovery
project; energy conservation program; intelligent transportation systems
implementation; and obtaining of the hybrid bus.  The Louisiana
Department of Environmental Quality has oversight, via permit, of
emissions from the Centerpoint Energy natural gas processing plant and
the General Motors plant.

 Centerpoint has filed for a new air permit to expand the facility,
which will result in an increase in NOX and VOC emissions beginning
during 2007.  NOx permit limits are expected to increase to 156.62 tpy
and VOC permit limits are expected to increase to 44.74 tpy.  Despite
the increase, these new proposed limits remain substantially below the
pre-EAC permit limits.

Shreveport-Bossier City MSA Early Action Compact

Progress Report

				  PAGE  i 				

Shreveport-Bossier City MSA Early Action Compact

Progress Report

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