Document ID: EPA-HQ-OAR-2003-0090-0161
Agency: epa
Document Type: Supporting & Related Material
Title: 
Posted Date: 2004-04-06T04:00Z

Unifour
Early
Action
Plan
March
31,
2004
TABLE
OF
CONTENTS
Page
I.
INTRODUCTION          .            
1
1.1
Background                     ..
1
1.2
Modeling
Background                 ..
1
1.3
Stakeholder
Involvement                ..
2
II.
OVERVIEW
OF
AIR
QUALITY
IN
THE
UNIFOUR
AREA     
6
2­
1
Figure
Unifour
Area
Ozone
Monitor
Locations        
7
2­
1
Table
Ozone
Monitor
Design
Values
00­
02
and
01­
03     .
7
2­
2
Table
Historical
8­
hour
Ozone
Values
94­
03         
8
2­
3
Table
Air
Quality
Index
Color
Guide            
8
III.
OZONE
AND
ITS
HEALTH
EFFECTS
AND
SOURCES      .
9
3.1
Overview
of
Ozone                  
9
3.2
Ozone
Health
Effects                  
9
3.3
Ozone
Sources                    ..
10
3.3.1
Volatile
Organic
Compounds
(
VOC's)          
10
3.3.2
Nitrogen
Oxides
(
Nox)                
10
3.3.3
Sources
of
NOx
and
VOC's              
11
IV.
EMISSIONS
INVENTORIES               
12
V.
Introduction                      .
12
4.1
Current
Year
Inventories                 
12
4.2
Future
Year
Inventories                 
14
4.3­
1
Future
Year
Modeling
Emissions             
15
4.4
Comparison
of
2000
and
2007
Inventories          
15
4.4­
1
Estimated
NOx
and
VOC
Emission
in
tons
per
day     
16
4.4­
2
Estimated
Highway
NOx
Emissions
by
vehicle
type     
17
4.4­
3
Non­
road
Equipment
NOx
Sources           
18
4.5
Comparison
of
2000
and
2010
Inventories         
19
4.5­
1
Estimated
NOx
and
VOC
Emissions,
in
tons
per
day     .
20
4.6
Future
Year
Inventories                 
20
V.
CONTROL
MEASURES                    
21
5.1
State
Control
Measures                 
21
5.1.1
Clean
Air
Bill                    
21
5.1.2
NOx
SIP
Call
Rule                  
21
5.1.3
Clean
Smokestacks
Act                
21
5.1.4
Open
Burning
Ban                  
21
5.2
Federal
Control
Measures               
22
5.2.1
Tier
2
Vehicle
Standards               
22
Unifour
Early
Action
Plan
March
31,
2004
5.2.2
Heavy­
Duty
Gasoline
and
Diesel
Highway
Vehicle
Standards 
22
5.2.3
Large
Non­
road
Diesel
Engines
Proposed
Rule        
22
5.2.4
Non­
road
Spark­
Ignition
Engines
and
Recreational
Engine
Standards                ..
22
5.3
Local
EAC
Control
Measures               
23
VI.
ATTAINMENT
DEMONSTRATION            
29
6.1
Status
of
Current
Modeling                
29
6.2
Preliminary
Modeling
Results             
29
6.2­
1
2000
Current
year
8­
hour
Ozone
Episodic
Max
for
1996
Episode 
30
6.2­
2
2007
Future
year
8­
hour
Ozone
Episodic
Max
for
1996
Episode 
31
6.2­
3
Difference
plot
between
2007
future
year
and
2000
current
year 
31
6.2­
4
2000
Current
Year
8­
hour
Ozone
Episodic
Max
for
1997    
32
6.2­
5
2007
Future
Year
8­
hour
Ozone
Episodic
Max
for
1997    
32
6.2­
6
Difference
plot
between
2007
and
2000
current
year      
33
6.2­
7
2010
Future
year
8­
hour
Ozone
Episodic
Max
for
1996
Episode 
33
6.2­
8
Difference
plot
between
2010
future
year
and
2000
current
year 
34
6.2­
9
2010
future
year
8­
hour
Ozone
Episode
Max
for
1997
Episode .
34
6.2­
10
Difference
plot
between
2010
future
year
and
2000
current
year 
35
6.3
Geographic
Area
Needing
Further
Controls         
35
6.4
Anticipated
Resource
Constraints             
36
APPENDIX
A
Stationary
Point
Sources
Emissions
in
tons/
day
APPENDIX
B
June
30,
2003
EAC
Report
APPENDIX
C
Tool
Box
for
Local
Control
Measures
APPENDIX
D
Resolutions
Adopted
by
EAC
Local
Governments