D­
1
APPENDIX
D
1999
BASE
CASE
MODELING
EMISSIONS
INVENTORY
DEVELOPMENT
SAN
ANTONIO
EAC
REGION
ATTAINMENT
DEMONSTRATION
MARCH
2004
D­
2
Appendix
D
Table
of
Contents
Page
Introduction
                              ..
D­
5
General
Refinements
to
the
1999
Emission
Inventory
(
EI)
Inputs    .
D­
5
Adjustments
to
Temporal
Input
Data                ..
D­
6
Biogenic
Source
Emissions
for
1999
Base
Case
              ..
D­
6
Point
Source
Emissions
for
1999
Base
Case
                .
D­
6
Regional
                            ..
D­
6
San
Antonio
Region
                       ..
D­
7
Houston/
Galveston
&
Beaumont/
Port
Arthur
Regions
         .
D­
8
Victoria
Region
                         ...
D­
8
Other
Texas
Urban
Counties
and
Texas
Rural
Counties
        
D­
8
Area
Source
Emissions
for
1999
Base
Case
 .          ..    ..
D­
12
Regional
                            ..
D­
12
Texas
Rural
Counties
                       
D­
12
San
Antonio
Region
   ..                    
D­
12
Wastewater
                        
D­
12
Austin
Region
                          
D­
13
Houston/
Galveston
Region
                    
D­
13
Other
Urban
Regions
                       
D­
13
Non­
Road
Source
Emissions
for
1999
Base
Case .          ..  .
D­
16
Regional
                            ..
D­
16
Texas
Rural
Counties
                       
D­
16
San
Antonio
Region
   ..                    
D­
16
Diesel
Construction
Equipment
               
D­
16
Quarry
Equipment
                     
D­
17
Austin
Region
                          
D­
18
Houston/
Galveston
Region
                    
D­
18
Other
Urban
Regions
                       
D­
18
On­
Road
Source
Emissions
for
1999
Base
Case
              
D­
21
Regional
  ..
                         ..
D­
21
Texas
Counties
                         ..
D­
21
San
Antonio
Region
                       .
D­
22
Austin
Region
                          .
D­
22
Houston/
Galveston
Region
                    ..
D­
22
Other
Urban
Regions
                       
D­
23
Summary
of
the
1999
Base
Case
Development
               
D­
27
References
                              ..
D­
34
D­
3
Appendix
D
List
of
Tables
Page
Table
D­
1
NOx
Emissions
from
CPS
Power
Plant
Units
in
Bexar
County,
Tons
per
Day
September
13
­
20,
1999
Episode
        
D­
7
Table
D­
2
NOx
Emissions
from
CPS
Power
Plant
Units
in
Bexar
County,
Tons
per
Day
September
13
­
20,
1999
Episode
        
D­
8
Table
D­
3
Photochemical
Model
Jobs
&
Files
for
1999
EI
Development
of
Point
Sources
                       
D­
9
Table
D­
4
Photochemical
Model
Jobs
&
Files
for
1999
EI
Development
of
Area
Sources
                       
D­
14
Table
D­
5
Photochemical
Model
Jobs
&
Files
for
1999
EI
Development
of
Non­
Road
Sources
                    .
D­
19
Table
D­
6
Photochemical
Model
Jobs
&
Files
for
1999
EI
Development
of
On­
Road
Sources
                    .
D­
24
Table
D­
7
1999
Emissions
by
Source
Category
for
Texas
for
Sept.
13
(
Monday)
                         
D­
28
D­
4
Appendix
D
List
of
Figures
Page
Figure
D­
1
1999
Estimated
NOx
Emissions
in
Tons/
Day
for
the
San
Antonio
EAC
Region
during
the
September
1999
Episode
       .
D­
32
Figure
D­
2
1999
Estimated
VOC
Emissions
in
Tons/
Day
for
the
San
Antonio
EAC
Region
during
the
September
1999
Episode
       ..
D­
33
D­
5
INTRODUCTION
Four
South
Texas
near
nonattainment
areas1
(
NNA)
and
Texas
Commission
on
Environmental
Quality
(
TCEQ)
sponsored
the
development
of
a
computer
model
simulating
the
high­
ozone
episode
that
occurred
between
September
15th
and
20th,
1999.
The
intent
of
developing
the
1999
simulation
was
to
provide
a
means
of
projecting
air
quality
conditions
to
the
year
2007
so
that
pollution
control
measures
could
be
modeled
and
analyzed
for
their
effectiveness
in
that
future
time
period.

Environmental
Protection
Agency
(
EPA)
draft
guidance
provides
a
detailed
process
for
developing
and
analyzing
model
simulations
from
the
planning
stages
through
control
strategy
development
and
evaluation.
These
steps
were
followed
in
developing
an
air
quality
simulation
for
the
September
1999
episode.

The
following
is
a
list
of
county
regions
this
appendix,
as
well
as
Appendix
F,
will
refer
to
in
the
body
as
well
as
various
tables,
charts,
or
figures.

 
AACOG
12­
county
region:
Atascosa,
Bandera,
Bexar,
Comal,
Frio,
Gillespie,
Guadalupe,
Karnes,
Kendall,
Kerr,
Medina,
&
Wilson
counties.
 
4­
county
San
Antonio
Early
Action
Compact
Region
(
SAER):
Bexar,
Comal,
Guadalupe,
&
Wilson
counties.
 
AACOG
Rural
Counties:
Atascosa,
Bandera,
Frio,
Gillespie,
Karnes,
Kendall,
Kerr,
&
Medina
counties.
 
Austin
3­
county
region:
Hays,
Travis,
&
Williamson
counties.
 
Austin
5­
county
MSA:
Bastrop,
Caldwell,
Hays,
Travis,
&
Williamson
counties.
 
Capital
Area
Planning
Council
(
CAPCO)
10­
county
region:
Bastrop,
Blanco,
Burnet,
Caldwell,
Fayette,
Lee,
Llano,
Travis,
&
Williamson
counties.
 
CAPCO
non­
MSA
counties:
Burnet,
Blanco,
Fayette,
Lee,
&
Llano
counties.
 
Corpus
Christi
2­
county
Region:
Nueces
&
San
Pratricio
counties.
 
Houston/
Galveston
8­
county
(
non­
attainment)
region:
Brazonia,
Chambers,
Fort
Bend,
Galveston,
Harris
Liberty,
Montgomery,
&
Waller
counties.
 
Beaumont/
Port
Arthur
(
BPA)
3­
county
region:
Hardin,
Orange,
and
Jefferson
counties.
 
Tyler/
Longview
2­
county
region:
Smith
&
Gregg
counties.
 
Victoria
7­
county
region:
Calhoun,
De
Witt,
Goliad,
Jackson,
Lavaca,
Refugio,
&
Victoria
counties.

GENERAL
REFINEMENTS
TO
THE
1999
EMISSION
INVENTORY
(
EI)
INPUTS
During
the
March
6,
2003
Texas
Near
Nonattainment
Areas
meeting,
ENVIRON,
TCEQ
and
NNA
stakeholders
recommended
refining
the
following
list
of
input
categories
to
improve
the
1999
episode
base
case:
 
On­
road
data
for
urban
areas
of
Texas
 
refinements
to
be
calculated
using
MOBILE6
(
Replacing
MOBILE5
on­
road
files
with
MOBILE6
files
in
urban
areas
is
also
a
requirement
of
the
Early
Action
Compact)
 
Texas
stationary
point
source
data
 
Texas
area
and
non­
road
data
 
Louisiana
Emission
Inventory
data
Other
changes
1
The
regions
of
Austin,
Corpus
Christi,
San
Antonio,
and
Victoria.
D­
6
 
National
Emission
Trends
(
NET)
data
for
regional
inputs
to
the
model
 
New
Regional
Emission
Inventory
(
EI)
 
includes
Area,
Non­
road,
On­
road,
and
Point
sources.

The
air
quality
model
methodologies
are
based
on
a
nested
grid,
discussed
further
in
Appendix
E.
This
appendix
will
focus
on
the
development
or
origin
of
the
files
used
in
the
1999
Emissions
Inventory
photochemical
model
base
case
development.

Adjustments
to
Temporal
Input
Data
All
values
were
provided
by
ENVIRON,
TCEQ,
EPA,
or
were
local­
survey
based.
EPA
default
data
can
be
found
online.
2
Local
weekly
and
monthly
adjustment
values
were
based
on
survey
results
from
the
1999
NET
Emissions
Inventories
for
AACOG
and
CAPCO.
All
hourly
data
were
either
provided
by
ENVIRON
or
extracted
from
TCEQ
files;
survey
data
were
not
used
for
adjustment
of
the
hourly
data.
The
temporal
adjustments
for
tank
truck
unloading,
Source
Classification
Codes
(
SCC)
2501060053,
were
provided
by
the
EPA.
These
temporal
allocations
are
contained
in
the
following
files:


month_
prof_
042902.
db

temporal.
pdf

tprl_
xref_
030701.
dbf

tprl_
xref_
0307
01.
xls

week_
prof_
121400.
dbf

wkd_
diurnal_
prof_
121400.
dbf3
BIOGENIC
SOURCE
EMISSIONS
FOR
1999
BASE
CASE
Emission
rates
that
result
from
natural
processes
in
vegetation
and
soils
were
developed
for
the
year
1999
by
ENVIRON,
"
Final
Report
Emissions
Processing
for
the
Joint
Comprehensive
Air
Quality
Model
with
Extensions
(
CAMx)
Photochemical
Modeling
of
Four
Southern
Texas
Near
Non­
Attainment
Areas"
(
p.
10
&
p.
17).
The
emissions
were
calculated
for
all
regions
in
the
36­
km
grid.

POINT
SOURCE
EMISSSIONS
FOR
1999
BASE
CASE
An
additional
modeling
consideration
for
point
sources
is
spatially
allocating
emissions
to
the
correct
vertical
layer.
Plants
and
facilities
that
emit
pollutants
through
stacks
present
spatial
allocation
challenges
since
stacks
can
release
emissions
many
meters
above
the
surface.
Depending
on
wind
speed
and
other
climatic
conditions,
this
may
allow
the
plants
effluent
to
travel
much
greater
distances
than
pollutants
released
at
the
surface.
Point
sources
are
subdivided
between
electric
generating
units
(
EGUs)
and
non­
electric
generating
units
(
NEGUs).

Regional
Emissions
for
all
states,
within
the
36­
km
grid
except
Texas
and
Louisiana,
used
data
from
EPA's
National
Emission
Inventory
for
1999
(
NEI99)
version
2.
Louisiana
emissions
were
originally
from
the
Louisiana
EI
which
contained
updated
local
data
processed
by
ENVIRON
(
2002).
Texas
offshore
point
source
emissions
were
also
processed
by
ENVIRON.
Emissions
data
for
Texas
were
gathered
from
several
sources
are
explained
in
more
detail
by
region.

2
Available
at:
http://
www.
epa.
gov/
ttn/
chief/
emch/
temporal/
3
University
of
Texas
at
Austin
(
UT),
email
from
Gary
McGaughy
received
on
2/
9/
04,
"
Fwd:
latest
draft
2007
files."
D­
7
San
Antonio
Region
The
photochemical
model's
EGU
point
source
file
was
updated
for
the
local
San
Antonio
area
with
information
from
City
Public
Service
(
CPS),
the
utility
provider
for
the
City
of
San
Antonio
and
portions
of
surrounding
counties.
This
is
in
keeping
with
a
recommendation
from
the
EPA
that
"
use
of
local
speciation
information,
especially
for
major
emitters,
is
preferable
to
national
default
profiles."
[
EPA,
1991a]

CPS
provided
emission
rates
in
tons/
day
by
power
plant
stack
for
the
September
13
 
20,
1999
episode.
4
Table
D­
1
lists
the
refined
NOx
emission
rates
and
table
D­
2
lists
the
refined
VOC
emission
rates,
by
power
plant
stack,
for
each
of
the
ramp­
up
and
episode
days.
These
emissions
were
spatially
allocated
based
on
the
geographic
locations
of
the
plants.

Plant
acronyms
on
the
following
tables
are
defined
as:
JKS
­
JK
Spruce
VHB
­
VH
Brauning
JTD
­
JT
Deely
WBT
­
WB
Tuttle
AVR
­
A.
von
Rosenburg
LCP
­
Leon
Creek
Plant
OWS
­
OW
Sommers
Table
D­
1.
NOx
Emissions
from
CPS
Power
Plant
Units
in
Bexar
County,
Tons
per
Day
September
13
 
20,
1999
episode.

Unit
9/
13/
99
9/
14/
99
9/
15/
99
9/
16/
99
9/
17/
99
9/
18/
99
9/
19/
99
9/
20/
99
JKS1
13.1
13.5
13.4
14.4
17.8
13.7
14.0
16.7
JTD2
13.6
14.0
14.4
13.6
13.8
25.6
25.4
26.1
JTD1
13.6
14.0
14.4
13.6
13.8
25.6
25.4
26.1
AVR1
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
OWS1
5.8
5.0
4.7
4.8
5.2
4.4
3.6
4.6
OWS2
5.7
2.7
0.0
0.0
5.5
3.7
3.1
4.6
VHB3
17.1
14.7
14.9
15.9
18.8
15.6
11.7
14.0
VHB1
5.2
4.9
4.5
5.2
5.3
4.3
3.9
3.1
VHB2
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
WBT
6.3
4.7
4.2
3.8
4.1
2.3
2.6
2.6
LCP
4.1
1.5
1.2
1.0
1.1
0.0
0.0
0.0
Total
84.5
61.5
71.7
72.4
85.4
69.7
64.2
71.9
Source:
City
Public
Service
4
City
Public
Service
(
CPS),
email
from
Joe
Fulton
received
04/
14/
03,
"
AACOG
submittal
of
CPS
emissions.
xls
CONFIDENTIAL
DATA."
D­
8
Table
D­
2.
VOC
Emissions
from
CPS
Power
Plant
Units
in
Bexar
County,
Tons
per
Day
September
13
 
20,
1999
Episode.

Unit
9/
13/
99
9/
14/
99
9/
15/
99
9/
16/
99
9/
17/
99
9/
18/
99
9/
19/
99
9/
20/
99
JKS1
0.1
0.1
0.1
0.1
0.1
0.1
0.0
0.1
JTD2
0.3
0.3
0.3
0.3
0.3
0.2
0.2
0.2
JTD1
0.3
0.3
0.3
0.3
0.3
0.2
0.2
0.2
AVR1
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
OWS1
0.3
0.2
0.2
0.2
0.2
0.2
0.2
0.2
OWS2
0.2
0.1
0.0
0.0
0.2
0.1
0.1
0.2
VHB3
0.8
0.7
0.7
0.7
0.8
0.7
0.5
0.6
VHB1
0.2
0.2
0.2
0.2
0.2
0.2
0.1
0.1
VHB2
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
WBT
0.0
0.1
0.1
0.1
0.1
0.1
0.1
0.1
LCP
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
Total
2.1
1.9
1.8
1.8
2.2
1.8
1.5
1.7
Source:
City
Public
Service
Houston/
Galveston
&
Beaumont/
Port
Arthur
Regions
The
emissions
for
the
8­
county
and
3­
county
regions
were
obtained
from
the
TCEQ
point
source
database,
described
below
in
the
Other
Texas
Urban
Counties
and
Texas
Rural
Counties
section.
These
NEGU
and
EGU
emissions
were
not
backcast
from
2000
to
1999.
The
2000
emission
estimates
were
preserved
to
avoid
possible
adjustment
errors.
Use
of
the
2000
emission
rates
is
also
justified
due
to
the
small
change
in
these
emissions
from
one
year
to
the
next.
TCEQ
performed
extensive
quality
assurance
(
QA)
on
the
Houston
point
source
data
after
refinements
to
emissions
were
made.
The
data
are
considered
accurate
and
were
used
in
the
Houston
SIP.

Victoria
Region
Emissions
for
the
Victoria
7­
county
region
were
processed
using
local
data
by
UT
and
were
obtained
from
the
Texas
Near
Non­
Attainment
(
txnna)
server.
5
Other
Texas
Urban
Counties
and
Texas
Rural
Counties
TCEQ
maintains
a
point
source
database
(
PSDB)
for
the
State
of
Texas.
The
database,
which
contains
emission
rates
and
spatial
allocation
information
for
EGUs
and
NEGUs,
underwent
reevaluation
and
refinement
in
the
spring
of
2003
in
preparation
for
use
in
the
1999
Dallas­
Fort
Worth
(
DFW)
modeling
episode.
The
data
are
available
in
model­
ready
files
from
TCEQ's
file
ftp
web
site.
6
These
emission
rates
were
incorporated
into
the
refined
1999
photochemical
model
with
the
exception
of
the
Bexar
County
EGUs,
for
which
AACOG
had
received
data
from
the
source
and
the
Victoria
region's
point
sources,
as
described
previously.
This
is
the
same
data
used
in
the
DFW
State
Implementation
Plan
(
SIP).

5
Available
on
txnna
server:
air.
tamuk.
edu/
data/
VCT/
1999/
emiss/
VCT_
1999_
emiss_
02262004.
tar.
gz
6
Available:
ftp://
ftp.
tceq.
state.
tx.
us/
pub/
OEPAA/
TAD/
Modeling/
DFWAQSE/
Modeling/
EI
(
Accessed:
05/
22/
03.)
D­
9
Table
D­
3.
Photochemical
Model
Jobs
&
Files
for
1999
Development
of
Point
Sources.

Counties/
Regions
Job
Script
Input
Files
Description
nei99ver2_
point.
afs
Processing
the
hourly
egu
&
negu
point
sources
for
the
region.
7
Regional:
Outside
Texas
(
no
Louisiana)
pts.
regional.
net99.
a
ctl.
zero.
louisiana
Removes
Louisiana
emissions
(
In
another
script).

Regional:
Louisiana
emiss.
pt.
LA_
EI99.
negu.
xxx
elvems.
pt.
LA_
EI99.
negu.
xxx
emiss.
pt.
LA_
hourly_
egu.
9909xxx.
PO
elvems.
pt.
LA_
hourly_
egu.
9909xxx.
PO
emiss.
pt.
LA_
hourly_
egu.
yyyyyy.
noPO
elvems.
pt.
LA_
hourly_
egu.
yyyyyy.
noPO
Point
source
emissions
for
the
Regional
Grid
(
hourly
&
daily).
8
Texas
Offshore
pts.
TX_
offshore
afs.
offshore.
lcp.
93_
2.
srt
Processing
of
Texas
offshore
PO
point
sources
(
ENVIRON,
2002).

pts.
TX_
minor.
99po.
a
afs.
0813­
2299minorpts_
nna.
lcp.
srt
Processing
of
minor
PO
point
sources,
no
elevated
sources
(
ENVIRON,
2002).

pts.
TX_
negu.
99po.
b
TX_
noHGBPA_
negu.
afs.
txt
TCEQ
processing
of
non­
egu
point
sources.
9
pts.
TX_
hrly_
egu.
0913_
2099
TX_
noHGBPA_
hrly_
egu_
S_
afs.
txt
Processing
of
Texas
hourly
EGU
point
sources.
10
Texas
counties
(
without
Houston/

Galveston,
Beaumont/

Port
Arthur,
or
Victoria
regions)
Pt.
TX_
hrly_
egu.
9013_
2099.

PO
TX_
noHGBPA_
hrly_
egu_
PO_
afs.
txt
Processing
of
Texas
daily
EGU
point
sources.
11
pts.
houston_
hrly_
egu.
0913_

2099.
job
hourly_
Txegu_
0913_
2099.
afs_
Rev6b.
lcp.
srt_
v2.
noPO
TCEQ
processing
of
hourly
egu
point
sources,
no
PO.
12
ctl.
zero_
non.
houston.
bpa
Removes
counties
other
than
Houston/
Galveston
&
Beaumont/
Port
Arthur
counties
(
in
diff.
script).

Houston/
Galveston
8­
county
Region
&

Beaumont/
Port
Arthur
3­
county
Region
pts.
houston_
hrly_
egu.
PO.
09
13_
2099.
job
hourly_
Txegu_
0913_
2099.
afs_
Rev6b.
lcp.
srt_
v2.
PO
TCEQ
processing
of
PO
egu
point
sources.
13
7
UT;
email
from
Gary
McGaughey
received
11/
4/
03,
"
EGU
and
NEGU
NEI99
AFS
Data
files."
[
based
on
EPA's
NEI
ver.
2]

8
UT;
email
from
Alba
Webb
received
03/
11/
04,
"
1999
EI
Comparison."

9
UT;
email
from
Gary
McGaughey
received
03/
05/
03,
"
RE:
1999
EI."
[
TCEQ
based
data
(
Dallas
SIP)]

10
UT;
email
from
Gary
McGaughey
received
03/
05/
03,
"
RE:
1999
EI."
[
TCEQ
based
data
(
Dallas
SIP)]

11
Texas
Commission
on
Environmental
Quality
(
TCEQ),
email
from
Ron
Thomas
received
5/
22/
03,
"
RE:
DWF
1999
AFS
files."
[
TCEQ
based
data
(
Dallas
SIP)]

12
TCEQ;
email
from
Ron
Thomas
received
05/
22/
03,
"
RE:
DFW
1999
AFS
files."

13
TCEQ;
email
from
Ron
Thomas
received
05/
22/
03,
"
RE:
DFW
1999
AFS
files."
[
for
Houston
Sip]
D­
10
ctl.
zero_
non.
houston.
bpa
Removes
counties
other
than
Houston/
Galveston
&

Beaumont/
Port
Arthur
counties
(
in
diff.
Script).

pts.
houston_
negu.
99po.
job
afs.
tx_
negu.
agg_
re.
000818_
000906.
vlsp.
3pols.
lcp
TCEQ
processing
of
non­
egu
point
sources.
14
(
cont.)
Houston/
Galveston
8­
county
Region
&

Beaumont/
Port
Arthur
3­
county
Region
ctl.
zero_
non.
houston.
bpa
Removes
counties
other
than
Houston/
Galveston
&

Beaumont/
Port
Arthur
counties
(
in
diff.
Script).

emiss.
pt.
vic_
egu.
99nopo.
yyyyyy
elvems.
pt.
vic_
egu.
99nopo.
yyyyyy
emiss.
pt.
vic_
egu.
99po.
xxx
elvems.
pt.
vic_
egu.
99po.
xxx
UT
processing
of
hourly
&
daily
egu
point
sources.
15
emiss.
pt.
vic_
negu.
99po.
xxx
elvems.
pt.
vic_
negu.
99po.
xxx
Processing
of
daily
non­
egu
point
sources.
16
Victoria
7­
county
region
emiss.
pt.
TX_
negu.
yyyyyy.
BP_
daily.
vic_
updates.
ph50
elvems.
pt.
TX_
negu.
yyyyyy.
BP_
daily.
vic_
updates.
ph50
emiss.
pt.
TX_
negu.
yyyyyy.
Dow­
UC_
upsets.
vic_
updates.
ph50
elvems.
pt.
TX_
negu.
yyyyyy.
Dow­
UC_
upsets.
vic_
updates.
ph50
emiss.
pt.
TX_
negu.
yyyyyy.
Dupont_
hourly.
vic_
updates.
ph50
elvems.
pt.
TX_
negu.
yyyyyy.
Dupont_
hourly.
vic_
updates.
ph50
emiss.
pt.
TX_
negu.
yyyyyy.
Dupont_
upsets.
vic_
updates.
ph50
elvems.
pt.
TX_
negu.
yyyyyy.
Dupont_
upsets.
vic_
updates.
ph50
emiss.
pt.
TX_
negu.
yyyyyy.
Koch_
daily.
vic_
updates.
ph50
elvems.
pt.
TX_
negu.
yyyyyy.
Koch_
daily.
vic_
updates.
ph50
Processing
of
hourly
non­
egu
point
sources.
17
14
TCEQ;
email
from
Ron
Thomas
received
05/
22/
03,
"
RE:
DFW
1999
AFS
files."
[
for
Houston
Sip]

15
UT;
email
from
Gary
McGaughey
received
03/
10/
04,
"
1999
VCT
Point
data."

16
UT;
email
from
Gary
McGaughey
received
03/
10/
04,
"
1999
VCT
Point
data."

17
UT;
email
from
Gary
McGaughey
received
03/
10/
04,
"
1999
VCT
Point
data."
D­
11
AREA
SOURCE
EMISSIONS
FOR
1999
BASE
CASE
Area
source
emissions
were
developed
using
a
variety
of
sources
from
national
EIs
to
the
use
of
local
data.
Local
data
were
used
to
calculate
emissions
where
available,
chiefly
in
urban
areas.
Minor
refinements
to
these
inventories
are
explained
further
under
the
county/
regional
sections
that
follow.

Regional
For
states
other
than
Texas
in
the
36­
km
grid,
emissions
were
based
on
the
NEI99
version
2,
emissions
inventory
database
maintained
by
the
EPA.
The
database
contains
point,
area,
and
mobile
1999
emission
rates
of
VOCs,
NOx,
and
CO
for
all
50
states.

Texas
Rural
Counties
Updated
area
source
emissions
files
were
downloaded
for
rural
counties
in
Texas
from
TCEQ's
ftp
web
site.
In
addition,
updated
area
emissions
were
obtained
from
EPA's
"
Clearinghouse
for
Inventories
&
Emission
Factors"
web
site.
18
Alamo
Area
Council
of
Governments
(
AACOG)
staff
used
the
Texas
Air
Quality
Study
(
TexAQS)
Emissions
Inventory
for
attainment
counties.
19
This
EI
was
later
updated
with
a
refined
temporal
allocation
methodology,
discussed
further
in
the
Temporal
Adjustments
section.
The
EI
matches
the
emissions
in
the
Houston
SIP;
Houston
also
used
the
TexAQS
EI.
The
EI
contains
new
emissions
data
for
Houston
that
were
not
available
previously;
the
data
are
more
accurate,
especially
in
upwind
sites
of
Houston.
The
TexAQS
EI
contains
improved
emissions
source
data,
as
well
as
calculations.

For
the
urban
regions
of
Texas,
emissions
data
were
gathered
from
several
organizations
and
government
agencies
or
developed
with
the
use
of
models,
local
surveys,
and/
or
local
data.

San
Antonio
Region
Surveys
and
local
inputs
were
used
to
determine
emission
rates
when
available.
In
the
absence
of
local
data,
surrogate
data
were
used
to
calculate
emission
rates.
Surrogate
data
may
include
gross
state
product,
employment,
national/
state
sales
estimates,
sales
tax
rates,
or
population
estimates.

The
data
collected
for
and
contained
within
the
1999
AACOG
EI
were
used
for
most
of
the
area
sources
in
AACOG's
12­
county
region.
Temporal
adjustments
were
incorporated
into
the
photochemical
model
to
account
for
the
1999
Sept.
13­
20th
dates.

Wastewater
The
San
Antonio
Water
System
(
SAWS)
provided
AACOG
with
updated
emission
estimates
and
methodologies
in
January
2004.
The
information
sent
contained
several
documents:
­
"
Permit
by
Rule
Submittal
for
San
Antonio
Water
System's
Dos
Rios
Water
Recycling
Center"
(
Ewen,
2003)
­
monitoring
samples
for
Dos
Rios
dating
back
to
September
1997,
Salado
Creek
dating
back
to
November
1997,
Medio
Creek
dating
back
to
September
1997,
and
Leon
Creek
dating
back
to
June
1998
18
Available:
ftp://
ftp.
epa.
gov/
EmisInventory/
finalnei99ver2/
criteria/
datafiles/
19
TCEQ;
email
received
03/
26/
03,
"
Modeling
EI
for
the
Houston."
Available
online
at:
ftp://
ftp.
tnrcc.
state.
tx.
us/
pub/
OEPAA/
TAD/
Modeling/
HGAQSE/
Modeling/
EI
D­
12
­
"
VOC
Emissions
from
Wastewater
Treatment
Plants."
(
Prakasam,
2003)
­
"
Predicting
VOC
Emissions
from
Wastewater
Processes
using
General
Fate
Models
(
GEMs),"
(
Curto,
1996).
­
Salado
Creek,
Dos
Rios,
and
Medio
Creek
flow
data
SAWS
estimated
their
VOC
Emissions
to
be:
Dos
Rios
WRC
8.51
tons/
yr.
Salado
Creek
WRC
1.36
tons/
yr.
Leon
Creek
WRC
1.70
tons/
yr.
Medio
Creek
WRC
0.07
tons/
yr.
WW
Total
11.6
tons/
yr.

Austin
Region
Surveys
and
local
inputs
were
used
to
determine
emission
rates
when
available.
In
the
absence
of
local
data,
surrogate
data
were
used
to
calculate
emission
rates.
Surrogate
data
may
include
gross
state
product,
employment,
national/
state
sales
estimates,
sales
tax
rates,
or
population
estimates.

This
data,
collected
for
and
contained
within
the
1999
CAPCO
EI,
were
used
for
most
of
the
area
sources
in
CAPCO's
10­
county
region.
Temporal
adjustments
were
incorporated
into
the
photochemical
model
to
account
for
the
1999
Sept.
13­
20th
dates.

Houston/
Galveston
Region
Area
source
emissions
developed
for
counties
in
the
Houston/
Galveston
region
were
downloaded
from
TCEQ's
web
site20
on
March
17,
2003.
These
emission
files
were
used
to
perform
the
photochemical
modeling
included
in
the
most
recent
SIP
revision
for
the
Houston
area.
The
emissions
were
calculated
for
August
2000.
To
estimate
1999
emissions
from
the
2000
data,
version
4.0
of
the
Economic
Growth
Analysis
System
(
EGAS)
was
used
to
backcast
the
emissions
to
September
1999
(
PECHAN,
2001).
EGAS
is
an
EPA­
recommended
model
used
to
project
emissions
(
backward
or
forward)
based
on
economic
forecasts.

Other
Urban
Regions
The
Corpus
Christi
and
Victoria
regions
were
processed
for
1999
by
UT
and
contain
local
data.

20
Available:
ftp://
ftp.
tceq.
state.
tx.
us/
pub/
OEPAA
D­
13
Table
D­
4.
Photochemical
Input
Files
Used
for
1999
EI
Development
of
Area
Sources
Counties/
Regions
Job
Scripts
Input
Files
Description
Regional
Outside
Texas
ar.
regional.
net99
nei99ver2_
area.
ams
Process
regional
ams
area
based
on
EPA's
NEI99
ver2.
21
Regional
mrguam.
ar.
all_
reg99po
emiss.
ar.
reg_
tx.
net99.
xxx
emiss.
ar.
houston.
net99.
xxx
emiss.
nr.
reg_
tx.
net99.
xxx
emiss.
ar.
reg.
net99.
xxx
emiss.
nr.
reg.
net99.
xxx
Merge
Area
and
Non­
road
emissions
for
the
Regional
Grid.

ar.
texas.
net99
ams.
TX_
00.
area_
base2
Process
ams
emissions.
22
Texas
Counties
(
excludes
San
Antonio,
Austin,

Houston/
Galveston,
Corpus
Christi,
and
Victoria
regions.)
ctl.
area.
00.
to.
99
Backcast
area
source
emissions
from
2000
to
1999
using
EGAS
(
Pechan,
2001)
factors.

ar.
sa.
99.
a0
ams.
aacog.
area.
b
Process
the
ams
area
sources
with
local
data
(
AACOG,
Aug.
2001).

AACOG
12­
county
region
afsar.
sa.
99.
a
afs.
capco.
aacog.
area
Process
the
afs
(
geo­
coded)
area
sources
for
AACOG
counties
with
local
data
(
AACOG,

Aug.
2001).

emiss.
artnr.
Aus99.
ams.
xxx
Process
the
ams
area
sources
with
local
data.
23
CAPCO
10­
county
region
emiss.
artnr.
Aus99.
afs.
xxx
Process
the
afs
(
geo­
coded)
area
sources
with
local
data.
24
ar.
houston.
net99*
ams.
TX_
00.
area_
base2
Process
ams
emissions.
25
Houston/
Galveston
8­
county
region
ctl.
houston.
00.
to.
99
Backcast
Houston
area
source
emissions
from
2000
to
1999
using
EGAS
(
Pechan,
2001)

factors.

21
TCEQ;
"
TCEQ
Modeling
EI
August
27,
2003
based
on
EPA's
NIF
version
2."
(
ftp://
ftp.
tnrcc.
state.
tx.
us/
pub/
OEPAA/
TAD/
Modeling/
)

22
TCEQ;
3/
26/
03.
"
TCEQ
Modeling
EI
for
Houston
SIP"
(
ftp://
ftp.
tceq.
state.
tx.
us/
pub/
OEPAA/
TAD/
Modeling/
DFWAQSE/
Modeling/
EI
)

23
UT;
email:
from
Gary
McGaughey
received
03/
08/
04,
"
RE:
San
Antonio
ar+
nr
emiss
files?"

24
UT;
email:
from
Gary
McGaughey
received
03/
08/
04,
"
RE:
San
Antonio
ar+
nr
emiss
files?"

25
TCEQ;
3/
26/
03.
"
TCEQ
Modeling
EI
for
Houston
SIP"
(
ftp://
ftp.
tceq.
state.
tx.
us/
pub/
OEPAA/
TAD/
Modeling/
DFWAQSE/
Modeling/
EI
)
D­
14
Corpus
Christi
2­
county
region
ar.
cc.
99
ams­
area­
nsp.
prn
Process
the
ams
area
sources
with
local
data
(
ENVIRON,
2002).

emiss.
artnr.
vic.
99ams_
nomil.
a0.
xxx
Victoria
7­
county
region
emiss.
vic.
Fire.
yyyyyy
Process
the
area
emissions
with
local
data.
26
26
UT;
email:
from
Gary
McGaughey
received
03/
08/
04,
"
RE:
San
Antonio
ar+
nr
emiss
files?"
D­
15
NON­
ROAD
SOURCE
EMISSIONS
FOR
1999
BASE
CASE
Non­
road
source
emissions
were
developed
using
a
variety
of
sources,
from
national
EIs
to
the
use
of
local
data.
Local
data
were
used
to
calculate
emissions
where
available,
chiefly
in
urban
areas.
Minor
refinements
to
these
inventories
are
explained
further
under
the
county/
regional
sections.

Regional
Non­
road
data
from
the
EPA
SCRAM
site
(
NEI99
version
2
data),
downloaded
in
March
2003,
were
used
to
update
the
off­
road
emissions
for
the
states
other
than
Texas,
within
the
36­
km
grid.

Texas
Rural
Counties
The
off­
road
equipment
files
contained
on
TCEQ's
web
site
were
used
to
update
the
1999
base
case
for
the
rural
counties
of
Texas.

San
Antonio
Region
The
data
collected
for
and
contained
within
the
EPA­
approved
1999
AACOG
EI
(
AACOG,
2001)
were
used
for
most
of
the
non­
road
sources
in
the
12­
county
AACOG
region.
The
information
included
in
the
AACOG
EI
has
been
gathered
through
the
use
of
a
local
survey,
available
employment
data,
and
application
of
EPA's
NONROAD
model.
In
addition,
adjustments
were
made
to
the
temporal
allocation
of
non­
road
data
in
the
photochemical
model
for
the
1999
EI
Sept.
13­
20th
dates.

Diesel
Construction
Equipment
The
EI
for
diesel
construction
equipment
in
the
AACOG
region
was
updated
using
surrogate
factors
obtained
by
the
same
means
as
in
a
Houston­
Galveston
area
study
conducted
by
Eastern
Research
Group
(
ERG),
(
Eastern,
2000).
This
methodology
was
also
used
in
two
other
studies
conducted
by
ERG
for
the
CAPCO
and
DFW
regions.
Where
data
were
not
obtainable,
the
NONROAD
Model
was
used
instead.

The
surrogate
factors
for
various
categories
of
diesel
construction
equipment
were
calculated
as
folloows:
 
Highway:
AACOG
obtained
highway
construction
lettings
in
the
1999
District
and
County
Statistics
(
DISCOS)
from
the
Texas
Department
of
Transportation.
Surrogate
Factor
=
SA
Hwy
Construction
Lettings
/
Houston
Hwy
Construction
Lettings
=
$
171,059,013.76
/
$
629,586,701.01
=
0.2717
 
Municipal
&
Utility:
MSA
populations
were
used
to
calculate
the
surrogate
factors.
MSA
populations
for
1999
were
obtained
from
the
AACOG
1999
Emissions
Inventory
(
AACOG,
Aug.
2001).
Surrogate
Factor
=
1,637,460
(
San
Antonio
MSA
Pop.)
/
4,490,310
(
Houston
MSA
Pop.)
=
0.3647
 
Commercial:
Construction
employee
populations
(
NAICS
23),
were
used
for
the
calculation
of
commercial
construction
equipment.
Employee
populations
for
the
San
Antonio
and
Houston
MSAs
were
collected
from
the
US
Census
Bureau
1999
County
Business
Patterns
(
US
Census,
2001).
Surrogate
Factor
=
40,909
SA
MSA
commercial
construction
employees
/
153,981
Houston
MSA
commercial
construction
employees
=
0.2657
D­
16
 
Residential:
The
number
of
single
family
dwelling
permits
for
metropolitan
areas
were
used
as
a
comparison
to
calculate
the
factor
for
this
category.
The
data
were
collected
from
the
Texas
A&
M
Real
Estate
Center
(
Texas
A&
M,
2003)
Surrogate
Factor
=
8,678
(
San
Antonio
MSA
single­
family
housing
building
permits)
/
22,248
(
Houston
MSA
single­
family
housing
building
permits)
=
0.3901
 
Rental:
In
the
creation
of
a
surrogate
factor
for
rental
equipment,
the
employee
populations,
NAICS
42181
and
53249
were
obtained
for
the
San
Antonio
and
Houston
metro
areas
from
the
US
Census
Bureau's
1999
County
Business
Patterns
(
US
Census,
2001)
Surrogate
Factor
=
1335
(
San
Antonio
Employees)
/
5013
(
Houston
Employees)
=
0.2663
 
>
25
horsepower:
To
maintain
consistency
in
a
comparison
between
construction
equipment
inventories,
it
was
necessary
for
AACOG
to
add
back
in
the
12,615
engines
under
25
horsepower
in
Texas
thus
allocating
1,015
to
the
San
Antonio
MSA
or
8.05%
of
the
Texas
equipment
population
 
Landfill
Equipment:
To
adjust
for
local
landfill
equipment
data,
AACOG
applied
the
same
equipment
configuration
used
in
the
CAPCO
study
(
Eastern,
2001).
 
Quarry
Equipment:
This
category
was
calculated
separately.
Data
for
horsepower,
hours
of
use,
and
equipment
population
were
obtained
from
local
survey
results
and
applied
to
the
study.
In
the
absence
of
local
survey
data,
default
values
from
the
NONROAD
Model
were
used.
Although
the
survey
data
were
obtained
from
a
2002
survey,
it
was
assumed
that
operations
have
not
changed
drastically
in
the
3
years
in
between
the
studies.
There
were
investigations
on
quarries
to
see
if
they
were
still
in
operation
in
1999.
Three
quarries
were
shown
not
to
be
in
operation
and
were
discarded
from
the
study.
The
emissions
were
calculated
by
using
the
following
formula:

EP*
HRS*
HP*
LF*
EF
=
Tons
per
year
Where,
EP
=
Equipment
population
HRS
=
Annual
hours
of
use
HP
=
Average
rated
horsepower
LF
=
Typical
load
factor
EF
=
Average
emission
of
pollutant
per
unit
of
use
Quarry
equipment
was
geocoded
according
to
each
site
location
so
emissions
could
be
calculated
with
site
specific
accuracy
in
the
photochemical
model.
The
resulting
emissions
from
quarry
equipment
for
the
region
was
0.3483
tons
per
day
of
VOC
and
2.8909
tons
per
day
of
NOx.
The
resulting
emissions
are
the
combination
of
all
points
discussed
in
this
section.

Quarry
Equipment
This
category
consists
of
emissions
produced
from
equipment
used
in
quarry
and
mining
activities.
The
methodology
used
in
estimating
quarry
equipment
emissions
for
the
AACOG
region
is
based
on
the
local
data
extracted
from
aerial
photographs
and
surveys,
and
EPA's
NONROAD
model.
The
NONROAD
model
was
used
in
the
absence
of
reliable
local
data.
The
methodology
involved:
D­
17
1.
Conducted
a
survey
of
local
quarry
equipment
activity
and
determined
local
equipment
population,
usage
rates,
and
equipment
characteristics.
2.
Analysis
of
aerial
photography
was
conducted
as
a
result
of
a
low
response
to
surveys.
Quarry
equipment
was
identified
and
quantified
using
available
imagery
of
quarry
sites.
3.
County
equipment
populations
for
quarry
sites
without
local
data
were
calculated
by
applying
an
average
employee
to
equipment
ratio
of
those
quarry
sites
with
available
equipment
population
data
to
those
quarry
sites
without
data.
4.
Estimated
VOC,
NOx,
and
CO
annual
emissions
by
multiplying
the
county
equipment
populations
by
the
average
annual
hours
of
use,
average
rated
horsepower,
typical
load
factor,
and
the
EF
for
each
type
of
equipment.
The
EPA's
NONROAD
Emission
Model
(
EPA,
2000)
was
used
to
provide
the
average
hours
of
use
and
load
factor
for
the
seven
quarry
equipment
categories.
5.
Converted
the
tons/
year
estimate
into
an
estimate
for
a
typical
weekday
(
tons/
day),
and
a
typical
weekend
day
(
tons/
day).

Austin
Region
CAPCO
developed
the
non­
road
emissions
for
the
Austin
10­
county
region
which
were
based
on
data
collected
for
and
contained
within
the
EPA­
approved
1999
CAPCO
EI
(
AACOG,
2001).
The
information
included
in
the
CAPCO
EI
was
gathered
through
the
use
of
local
survey,
available
employment
data,
and
application
of
the
NONROAD
model.
In
addition,
temporal
adjustments
were
incorporated
within
the
photochemical
model
to
account
for
the
1999
EI
Sept.
13­
20th
episode.

Houston/
Galveston
Region
Non­
road
emissions
for
the
counties
in
the
Houston­
Galveston
region
were
downloaded
from
TCEQ's
web
site27
on
March
17,
2003.
The
Houston­
Galveston
non­
road
emissions
were
for
the
year
2000;
therefore,
the
EPA's
NONROAD
model
was
used
to
estimate
the
emissions
for
September
1999.
This
model
can
be
used
to
estimate
past,
current,
and
future
inventories
for
most
off­
road
equipment
categories.
The
model
produces
emission
estimates
for
all
criteria
pollutants,
as
well
as
carbon
dioxide,
down
to
the
county
level.

The
NONROAD
runs
were
conducted
for
a
typical
summer
day
(
weekday
and
weekend
day)
in
1999
and
in
2000
(
EPA,
2000).
The
percent
differences
between
1999
and
2000
statewide
emissions
on
a
typical
summer
day,
by
SCC
code,
were
used
to
develop
weekday
and
weekend
adjustment
factors
for
each
equipment
type.
These
factors
were
applied
to
the
2000
Houston
data
to
estimate
1999
non­
road
emissions.

Other
Urban
Regions
The
non­
road
emissions
for
the
Corpus
Christi
2­
county
region
were
developed
by
ENVIRON
and
processed
in
three
files:
geocoded
military,
geocoded
commercial
airport,
and
the
remaining
sources,
non­
geocoded.
The
Victoria
region's
emissions
were
developed
and
supplied
by
UT
and
were
made
available
in
one
file
containing
all
non­
road
emissions.

27
Available
at:
ftp://
ftp.
tceq.
state.
tx.
us/
pub/
OEPAA/
TAD/
Modeling/
HGAQSE/
Modeling/
EI/
D­
18
Table
D­
5.
Photochemical
Model
Jobs
&
Files
for
1999
EI
Development
of
Non­
road
Sources.

Counties/
Regions
Job
Scripts
Input
Files
Description
Regional
nr.
regional.
net99
nei99ver2_
nonroad.
ams
Process
of
emissions
based
on
EPA's
NEI99
version
2.
28
ams.
TX_
00.
NR_
base2
Process
of
2000
non­
road
source
file
for
Texas.

Texas
(
Rural
Counties)
nr.
texas.
net99
ctl.
nr.
tx.
00.
to.
99
Backcast
them
to
1999
29
using
NONROAD
Model.

afs.
quarry.
99
afs.
quarry.
aacog
Process
of
geo
coded
quarry
emissions
including
local
data
(
AACOG,
2001)
and
NONROAD
Model.

afs.
nonroad.
capco.
aacog.
a
Process
of
afs
file
for
non­
road
emissions
including
local
data
for
all
the
AACOG
counties.

afs_
nr.
sa.
a.
99
ctl.
construction
Adjusts
construction
diesel
engines
emissions
to
demonstrate
the
re­
calculation
of
equipment
population
for
4­
county
SAER.

afs_
tractors.
combine.
sa.
99
afs.
tractors_
combines.
sa
Geo­
coded
tractor
/
combine
emissions
including
local
data
for
Bexar,
Wilson,
Comal,
Atascosa,
Medina,

Guadeloupe,
and
Fayette
counties
tractors_
combines.
sa.
au
ams.
tractors_
combines.
sa.
au
Process
of
ams
tractor
&
combine
emissions
(

nongeocoded
includes
local
data.

airport.
sa.
99
ams.
airport.
sa
Process
of
civilian
airport
emissions
with
local
data
for
all
the
AACOG
counties
(
geo
coded
to
its
location
using
the
grdsrg
file
in
grdem).

military.
sa.
99
ams.
military.
sa
Process
of
military
airport
emissions
including
local
data
(
geo
coded
to
location
using
the
grdsrg
file
in
grdem).

San
Antonio
(
AACOG)

12­
county
region
nr.
sa.
99.
a0
ams.
aacog.
nonroad.
b
Process
of
ams
file
for
non­
road
sources
including
local
data.

emiss.
nr.
Aus99.
ams.
xxx
emiss.
nr.
Aus99.
afs.
xxx
(
geo­
coded)
Process
of
afs
file
non­
road
emissions
including
local
data
(
includes
temporal
adjustment
for
day
of
the
week).
30
Austin
(
CAPCO)

10­
county
region
ma.
austin.
99
airport­
military.
austin
Process
of
ams
file
for
civilian
&
military
airport
emissions
geo
coded
to
its
location
using
the
grdsrg
file
in
grdem
(
AACOG,
Jun.
2001)

ma.
cc.
99
afs­
ma­
nsp.
txt.
a0
Process
of
military
emissions
including
local
data
(
ENVIRON,
2002).

Corpus
Christi
2­
county
region
ca.
cc.
99
afs­
ca­
nsp.
txt.
a0
Process
of
commercial
airport
emissions
including
local
data
(
ENVIRON,
2002).

28
TCEQ,
"
Modeling
EI,"
Aug.
27,
2003.
Available
online
at:
ftp://
ftp.
tnrcc.
state.
tx.
us/
pub/
OEPAA/
TAD/
Modeling/
HGAQSE/
Modeling/
EI
29
TCEQ,
March
26,
2003
"
Modeling
EI
for
the
Houston
SIP,"
ftp://
ftp.
tnrcc.
state.
tx.
us/
pub/
OEPAA/
TAD/
Modeling/
HGAQSE/
Modeling/
EI
30
UT;
email:
from
Gary
McGaughey
received
03/
08/
04,
"
RE:
San
Antonio
ar+
nr
emiss
files?"
D­
19
Corpus
Christi
2­
county
region
nr.
cc.
99
ams­
nonroad­
nsp.
prn
Process
of
ams
file
non­
road
sources
including
local
data
(
ENVIRON,
2002).

Victoria
7­
county
region
emiss.
vic.
nonroad.
yyyyyy
Process
emissions.
31
31
UT;
email:
from
Gary
McGaughey
received
02/
26/
04,
"
1999
vct
emiss
files"
D­
20
ON­
ROAD
SOURCE
EMISSIONS
FOR
1999
BASE
CASE
Emissions
from
on­
road
sources
are
calculated
using
the
EPA's
MOBILE
model.
AACOG
staff
integrated
MOBILE6
on­
road
files
into
the
photochemical
model
for
all
major
urban
areas
of
Texas,
when
available.

Regional
Outside
of
Texas,
emissions
data
were
developed
by
TCEQ
based
on
the
EPA's
NIF
version
2.0,
and
is
available
on
the
ftp
web
site.
32
Texas
Counties
MOBILE6
input
files
have
only
been
completed
for
certain
counties
within
nonattainment
and
near­
nonattainment
areas.
Therefore,
on­
road
inputs
were
updated
using
the
gridded
MOBILE6
files
when
available;
otherwise
MOBILE5
emission
inventories
were
used.
The
methodology
is
the
same
as
in
the
Houston
SIP
which
used
MOBILE5
for
counties
outside
of
the
Houston
area33.

The
TCEQ
directory,
MOBILE6
On­
Road
Emission
Data
for
Texas
Near
Nonattainment
Area
Ozone
Episodes
Emissions
for
1999
Base
Case
&
2007
Future
Case
(
Updated
on
December
5,
10,
and
13,
2002.
Originally
posted
on
October
2,
2002.),
contains
MOBILE6­
based
on­
road
mobile
source
emissions
data
that
are
being
used
to
support
photochemical
modeling
efforts
for
the
Texas
near
nonattainment
areas
of:
­
Austin
3­
county
Region
­
Corpus
Christi
­
San
Antonio
(
Bexar
County
only)
­
Tyler­
Longview
­
Victoria
The
ozone
episode
for
the
Austin,
Corpus
Christi,
San
Antonio,
and
Victoria
areas
extends
from
Monday
September
13,
1999
through
Monday
September
20,
1999.
The
ozone
episode
for
the
Tyler­
Longview
area
extends
from
Friday
August
13,
1999
through
Sunday
August
22,
1999.
Inventory
data
exist
for
both
the
1999
"
base
cases"
and
2007
"
future
cases"
of
these
episodes.
Four
"
day
type"
inventories
are
provided
for
each
area
and
calendar
year:
­
Weekday
(
Monday­
Thursday)
­
Friday
­
Saturday
­
Sunday
The
inventories
were
developed
under
contract
to
the
TCEQ
by
the
Texas
Transportation
Institute
(
TTI)
and
converted
into
a
photochemical
model­
ready
format
by
TCEQ
staff
using
the
2X
version
of
the
Emissions
Preprocessor
System
(
EPS2X).

MOBILE6
was
not
used
for
rural
counties
because
the
1999
MOBILE6
estimates,
as
well
as,
2007
MOBILE6
emissions
estimates
were
not
available
in
time.
In
addition,
emissions
from
32
Available
at:
ftp://
ftp.
tceq.
state.
tx.
us/
pub/
OEPAA/
TAD/
Modeling/
DFWAQSE/
Modeling/
EI
33
Houston
SIP
used
adjusted
MOBILE5a­
h
data
in
Houston's
Mid­
Course
Review
Phase
I:
Attachment
3
­
Emissions
Inventory
Development
and
Modeling
for
the
August
25
­
September
1,
2000,
p.
A3
 
79.
Episode.
Available
http://
www.
tnrcc.
state.
tx.
us/
air/
aqp/
airquality_
photomod.
html#
tsd2
D­
21
on­
road
sources
in
these
counties
are
not
significant
and
would
have
minimal
impact
on
the
San
Antonio
ozone
level.

San
Antonio
Region
In
August
2003,
TTI
completed
the
MOBILE6
version
2
gridded
on­
road
input
files
for
Bexar
County.
The
files
were
made
available
by
the
TCEQ
and
provided
in
model­
ready
format
on
that
agency's
file
transfer
protocol
(
ftp)
web
site.
34
Before
entering
the
on­
road
network
data
file
in
the
photochemical
model,
TTI's
Bexar
County
MOBILE6
file
was
updated
in
one
primary
way.
The
TTI
files
provided
on­
road
emissions
for
an
average
September
weekday,
Friday,
Saturday,
and
Sunday.
These
files
were
adjusted
by
the
University
of
Texas
at
Austin
(
UT)
to
calculate
emissions
for
the
individual
episode
days
of
September
13­
16,
1999
and
September
20,
1999.
Temperature
and
humidity
differences
between
weekdays,
as
well
as,
differences
in
VMT
were
used
for
these.

The
SAER
MOBILE5
emissions
estimates
were
converted
to
MOBILE6
v.
2
values
with
dayspecific
pollutant­
specific
factors.

Austin
Region
On­
road
data
for
the
Austin
region
was
also
developed
by
TTI
and
made
available
by
TCEQ
in
model­
ready
format
on
that
agency's
file
transfer
protocol
(
ftp)
web
site.
35
This
data
includes
the
MoPac/
IH­
35
adjustment.
An
estimated
45%
of
the
MoPac
NOx
emissions
were
moved
to
IH­
35
to
account
for
the
lesser
emissions
on
MoPac
freeway
as
compared
to
the
greater
emissions
on
the
IH­
35
expressway.
This
adjustment
was
made
because
the
two
roads
were
both
categorized
as
freeways,
exaggerating
the
NOx
emissions
on
MoPac.

Houston/
Galveston
Region
MOBILE6
on­
road
files
were
also
obtained
for
the
Houston
area.
36
However,
the
Houston
on­
road
emission
rates
were
estimated
for
an
August
2000
timeframe.
Therefore,
several
adjustments
were
necessary
to
make
the
files
suitable
for
use
in
the
September
1999
episode.

The
2000
Houston
episode
spanned
8
days,
from
Wednesday,
August
23,
2000
through
Wednesday,
August
30,
2000,
so
an
initial
step
in
the
adjustment
process
involved
selecting
appropriate
2000
episode
days
to
backcast
to
1999.
Since
the
number
of
vehicle­
milestraveled
(
VMT)
and
vehicle
mix
vary
by
day
of
the
week,
the
Friday
(
August
25th),
Saturday
(
August
26th)
and
Sunday
(
August
27th)
2000
Houston
on­
road
files
were
used
to
determine
the
Friday
(
September
17th),
Saturday
(
September
18th)
and
Sunday
(
September
19th)
1999
on­
road
inputs,
respectively.
Ron
Thomas
of
TCEQ
recommended
using
Wednesday,
August
30,
2000
as
a
typical
weekday
(
September
13th
through
16th
and
20th)
for
purposes
of
the
1999
episode.

The
August
2000
vehicle
emission
rates
were
adjusted
to
reflect
the
correct
month
and
year.
This
was
accomplished
using
the
MOBILE6
model.
Two
runs
were
conducted
for
Houston
34
Available:
ftp://
ftp.
tceq.
state.
tx.
us
(
April
4,
2003)
35
Available:
ftp://
ftp.
tceq.
state.
tx.
us
(
April
4,
2003)
36
TCEQ,
email:
from
Chris
Kite
received
12/
10/
02
(
NNA
areas)
and
02/
28/
03
(
Houston
area).
D­
22
using
MOBILE6:
one
with
appropriate
settings
(
such
as
hourly
temperature)
for
the
August
2000
episode
and
one
with
appropriate
settings
for
a
September
1999
timeframe.
The
percent
difference
between
the
two
was
applied,
in
concert
with
a
Vehicle
Miles
Traveled
(
VMT)
adjustment
to
account
for
the
difference
between
total
VMT
for
the
two
runs,
to
the
2000
Houston
link­
based
on­
road
emission
file.

The
1999
MOBILE6
LBASE
input
files
aggregate
the
28
vehicle­
types
(
EPA,
2001)
into
9
(
LDG,
HDGV,
LDD
V
and
T1­
4,
HDDV2­
7,
HDDV8a­
b,
MC,
HDGB,
HDDBT,
and
HDDBS)
categories;
the
13
roadway­
types
are
aggregated
into
3
(
freeway,
arterial,
&
local)
categories.
37
Other
Urban
Regions
The
MOBILE5
on­
road
files
for
Corpus
Christi,
Tyler­
Longview,
and
Victoria
areas
that
were
used
in
the
development
of
the
original
September
1999
base
case
were
replaced
with
the
MOBILE6
files
developed
by
the
Texas
Transportation
Institute
(
TTI)
and
provided
in
modelready
format
on
TCEQ's
ftp
web
site.
38
MOBILE6
ver.
1
was
used
for
Gregg,
Smith,
San
Patricio,
Nueces,
and
Victoria
counties.

The
on­
road
emissions
files,
photochemical
model
job
scripts,
counties
they
affect,
and
a
brief
description
of
what
the
job
scripts/
files
accomplish
are
listed
in
Table
D­
6.

37
TCEQ,
email:
from
Chris
Kite
received
02/
28/
03,
"
MOBILE6
LBASE
Input
Files
for
Houston."
38
Available
ftp://
ftp.
tceq.
state.
tx.
us
(
April
4,
2003)
D­
23
Table
D­
6.
Photochemical
Model
Jobs
&
Files
for
1999
EI
Development
of
On­
Road
Sources.

Counties/
Regions
Job
Scripts
Input
Files
Description
Regional
(
outside
of
Texas)
mv.
regional.
net99
nei99ver2_
mobile.
ams
Process
the
regional
on­
road
source
file.
39
Other
Texas
Counties
(
where
MOBILE6
was
not
available)
pream.
txnna.
12km.
HPMS
chmspl.
txnna.
12km.
HPMS
grdem.
txnna.
12km.
HPMS
cntlem.
daily.
txnna.
12km.
mobile5.
HPMS.
j
ob
AMS.
mv.
HPMS.
hourly.
xxx.
yyyyyy.
a0
Process
MOBILE5
emissions,
NIF
(
ENVIRON,

2002).

Bexar
County
lbase.
mobile6.4km.
v2
chmspl.
mobile6.4km.
v2.
job
grdem.
mobile6.4km.
v2.
job
Cntlem.
mobile6.4km.
v2.
job
m6.1999.
bexar,.
xxx.
0920.
lbase_
in
(
Weekdays:
Sep.
13­
16
and
20
th)

m6.1999.$
county,
xxx.
yyyyyy.
lbase_
in
(
Weekend
days:
Fri.
Sep.
17,
Sat.
Sep.
18,
&

Sun.
Sep.
19)

cntlem.
mobile6.4km.
v2
Process
on­
road
EI
w/

MOBILE6
ver
2
for
Bexar
county.
40
Applied
to
MOBILE6
on­
road
emissions
to
adjust
for
each
weekday
based
on
day­
specific
temperature
&
humidity.
41
CAPCO
3­
county
region
emiss.
m6.
limks.
4km.
Austin_
3county.
roadnox.

yyyyyy
MOBILE6
ver.
2
w/
MOPAC/

IH35NOx
decrease
of
45%

for
HDDV
42
and
day
specific
emissions.

CAPCO
Counties:

Bastrop
Caldwell
AACOG
Counties:

Comal
Guadalupe
Wilson
cntlem.
daily.
txnna.
4km.
mobile5.
HPMS
mvfactors.
aus.
sa.
yyyyyy
Converts
MOBILE5
emissions
estimates
to
MOBILE6
ver.
2
values
with
day­
specific,

pollutantspecific
factors.
43
Houston
8­
county
Region
lbase.
mobile6.12km.
houston
chmspl.
mobile6.12km.
houston
grdem.
mobile6.12km.
houston
mobile6.2000.
HGA_
8county.
0830.
lbase_
in
mobile6.2000.
HGA_
8county.
0825.
lbase_
in
mobile6.2000.
HGA_
8county.
0826.
lbase_
in
mobile6.2000.
HGA_
8county.
0827.
lbase_
in
Process
MOBILE6
EI
for
Houston
counties.

39
TCEQ,
Modeling
EI
based
on
EPA's
NIF
version
2.0.

40
UT;
email:
from
Gary
McGaughey
received
08/
27/
03,
"
1999
M6
files
for
SA/
AUS."

41
UT;
email
from
Alba
Webb
received
03/
11/
04,
"
RE:
Gifs
attached."
[
TTI,
June
2003:
Appendix
C].

42
UT;
email:
from
Alba
Webb
received
01/
16/
04,
"
Revised
Mobile
Files,"
[
TTI,
June
2003:
Appendix
C].

43
UT;
email:
from
Alba
Webb
received
09/
05/
03;
"
RE:
Victoria
area/
nonroad/
point
1999
EI
data"
D­
24
cntlem.
mobile6.12km.
houston
ctl.
onroad.
LINKS.
daily.
yyyyyy
Backcast
Houston
emissions
from
Aug.
2000
to
Sep.

1999.
44
Gregg
&
Smith
counties*
lbase.
mobile6.12km.
LINKS
chmspl.
mobile6.12km.
LINKS
grdem.
mobile6.12km.
LINKS
m6.1999.
Tyler_
2county.
weekday.
0816.
lbase_
in
m6.1999.
Tyler_
2county.
weekday.
0813.
lbase_
in
m6.1999.
Tyler_
2county.
weekday.
0814.
lbase_
in
m6.1999.
Tyler_
2county.
weekday.
0815.
lbase_
in
Process
MOBILE6
EI
for
Gregg
&
Smith
counties.
45
cntlem.
mobile6.12km.
LINKS
ctl.
onroad.
Links.
daily.
yyyyyy
Project
emissions
from
Aug.

1999
to
Sept.
1999.
46
Houston
8­
county
Region
emiss.
mv.
mobile6.12km.
houston.
xxx.
yyyyyy.
a0
Gregg
County
emiss.
mv.
mobile6.12km.
gregg.
xxx.
yyyyyy.
a0
Other
counties
mrguam.
mobile6.12km.
mv
emiss.
mv.
mobile5.
HPMS.$
hpms_.
xxx.
yyyyyy.
a0
Running
of
MRGUAM
module
for
the
Mobile
EI
12km
level
in
1999.

Nueces
San
Patricio
lbase.
mobile6.4km.
corpus
chmspl.
mobile6.4km.
v2.
job
grdem.
mobile6.4km.
v2.
job
m6.1999.
corpus.
xxx.
yyyyyy.
lbase_
in
Process
MOBILE6
Emissions.
47
Victoria
7­
county
region
emiss.
m6.
links.
4km.
vic.
yyyyyy
Day
specific
7­
county
emissions
48
with
MOBILE6
for
Victoria
County
and
MOBILE5
for
other
6
counties.

Bexar
Austin
3­
county
region**

Nueces
San
Patricio
Victoria
Fort
Bend
Harris
Waller
Other
mrguam.
txnna.
4km.
mobile6.
v2
emiss.
mv.
mobile6.
v2.4km.
bexar.
xxx.
yyyyyy.
a0
emiss.
m6.
links.
4km.
Austin_
3county.
roadnox.
yyyyyy
emiss.
mv.
mobile6.4km.
nueces.
weekday.
yyyyyy.
a0
emiss.
mv.
mobile6.4km.
sanpatricio.
weekday.
yyyyyy.
a0
emiss.
mv.
mobile6.4km.
victoria.
weekday.
yyyyyy.
a0
emiss.
mv.
mobile6.4km.
fortbend.
weekday.
yyyyyy.
a0
emiss.
mv.
mobile6.4km.
harris.
weekday.
yyyyyy.
a0
emiss.
mv.
mobile6.4km.
waller.
weekday.
yyyyyy.
a0
emiss.
mobile5.
HPMS.$
hpms_
day.
yyyyyy.
ao
MRGUAM
module
for
the
Mobile
EI
(
4km)
weekdays
Mon.
Sep
13
 
Thurs.
Sep.

16
and
Mon.
Sep
20.

44
TCEQ,
email:
from
Chris
Kite
received
02/
28/
03,
"
MOBILE6
LBASE
Input
Files
for
Houston."

45
TCEQ;
email:
from
Chris
Kite
received
08/
29/
03,
"
1999
Gridded
Onroad
Mobile
CAMx
Files
for
NNA
Subdomain."

46
TCEQ;
email:
from
Chris
Kite
received
08/
29/
03,
"
1999
Gridded
Onroad
Mobile
CAMx
Files
for
NNA
Subdomain."

47
TCEQ;
email:
from
Chris
Kite
received
08/
29/
03,
"
1999
Gridded
Onroad
Mobile
CAMx
Files
for
NNA
Subdomain."

48
UT;
email
from
Alba
Webb
received
03/
11/
04,
"
RE:
Gifs
attached."
[
TTI,
June
2003:
Appendix
C].
D­
25
Bexar
Austin
3­
county
region**

Nueces
San
Patricio
Victoria
Fort
Bend
Harris
Waller
Other
mrguam.
txnna.
4km.
mobile6.
v2
emiss.
mv.
mobile6.
v2.4km.
bexar.
xxx.
yyyyyy.
a0
emiss.
m6.
links.
4km.
Austin_
3county.
roadnox.
yyyyyy
emiss.
mv.
mobile6.4km.
nueces.
xxx.
yyyyyy.
a0
emiss.
mv.
mobile6.4km.
sanpatricio.
xxx.
yyyyyy.
a0
emiss.
mv.
mobile6.4km.
victoria.
xxx.
yyyyyy.
a0
emiss.
mv.
mobile6.4km.
fortbend.
xxx.
yyyyyy.
a0
emiss.
mv.
mobile6.4km.
harris.
xxx.
yyyyyy.
a0
emiss.
mv.
mobile6.4km.
waller.
xxx.
yyyyyy.
a0
e3miss.
mobile5.
HPMS.$
hpms_
day.
yyyyyy.
ao
MRGUAM
module
for
the
Mobile
EI
(
4km)
to
allocate
for
weekdays
and
weekend
days.

Regional
mrguam.
mv.
all_
reg.
mobile6.0999
emiss.
mv.
all_
counties.
12km.
yyyyyy.
a0
emiss.
mv.
reg.
net99.
xxx
Merges
Mobile
emissions
for
the
Regional
Grid,
1999.

*
Input
days
used
are
Aug.
13th
for
Friday,
Aug.
14th
for
Saturday,
Aug.
15th
for
Sunday,
and
Aug.
16
for
a
"
representative"
weekday.

Each
day
was
backcast
to
Sept.
1999
using
day­
specific
temperatures
in
MOBILE6
to
produce
a
Gregg
and
Smith
county
on­
road
EI
for
modeling
episode
Sept.
13­
20,
1999.
This
is
similar
to
the
methodology
used
for
Houston
on­
road
emissions
and
approved
by
TCEQ.
It
was
also
found
to
be
more
accurate
than
"
default"
non­
gridded
on­
road
emissions.

**
Austin
emission
files
were
provided
by
UT
and
were
based
on
TTI
emissions
data.
These
files
contain
the
I35/
MOPAC
adjustment
in
Travis
County.
D­
26
SUMMARY
OF
THE
1999
BASE
CASE
DEVELOPMENT
Development
and
refinement
of
the
September
1999
photochemical
modeling
episode
was
an
extensive
project
that
required
the
assistance
of
consultants
and
the
cooperation
of
several
agencies.
In
addition,
it
required
review
and
analysis
of
data
from
a
variety
of
sources.
Meteorological
refinements
were
developed
by
consultants
from
ENVIRON
International
Corporation
and
the
University
of
Texas
at
Austin.
Their
efforts
produced
three
meteorological
schemes
(
labeled
5d,
5g,
and
6f)
that
replicated
climatic
and
atmospheric
conditions
during
the
September
1999
episode.
The
new
meteorological
schemes
were
run
through
the
photochemical
model
to
determine
their
affect
on
the
formation,
transport,
and
deposition
of
ozone.

Another
major
step
in
the
development
and
refinement
process
entailed
developing/
obtaining
improved
emission
data
for
model
input
and,
when
necessary,
adjusting
the
rates
to
the
correct
time
period
and
converting
the
data
to
model­
readable
files.
Sources
of
refined
emissions
data
included
EPA's
National
Emissions
Trend
database
and
State
Implementation
Plan
data
developed
for
other
urban
areas
of
Texas.
Emissions
databases
were
also
reviewed
for
accuracy
as
recommended
by
the
EPA
in
their
draft
modeling
guidance
(
EPA,
1999a).
During
this
quality
assurance/
quality
control
process,
several
problems
were
identified
that
required
corrections,
such
as
adjustments
to
the
temporal
and
spatial
allocation
of
emission
rates
The
most
significant
refinement
to
the
emission
inputs
for
the
San
Antonio
region
was
development
of
gridded
MOBILE6
and
MOBILE6
version
2
based
on­
road
emission
estimations.
The
Texas
Transportation
Institute
created
average
weekday
on­
road
emissions
for
Bexar
County
and
spatially
allocated
the
emissions
to
the
4­
km
grid
system.
AACOG
staff
modified
the
average
weekday
on­
road
data
to
account
for
variances
in
temperatures
during
the
modeling
episode
weekdays
The
revised
1999
emissions
rates
used
for
input
to
the
photochemical
model
for
Bexar
County
are
summarized
in
figures
D­
1
and
D­
2.
These
figures
provide
NOx
and
VOC
emission
totals
by
source
category.
Prior
to
incorporating
these
values
in
the
model,
all
emission
rates
were
spatially
allocated
to
the
4­
km
grid
using
EPA­
approved
methodologies.
D­
27
Table
D­
7.
1999
Emissions
by
Source
Category
for
Texas
for
Sept.
13
(
Monday)
Non­
Road
Emissions
Area
Emissions
Mobile
Emissions
Point
Emissions
County
FIPS
Code
NOx
VOC
NOx
VOC
NOx
VOC
NOx
VOC
48001
4.9
0.8
0.6
7.2
3.2
1.8
0.5
0.1
48005
2.7
8.3
0.3
6.2
7.9
3.4
4.6
4.2
48007
1.8
4.2
0.4
1.9
1.1
0.6
0.7
7.2
48009
0.8
0.6
0.2
20.1
0.9
0.5
0.0
0.0
48011
0.3
0.0
0.0
0.1
0.2
0.1
0.0
0.0
48015
7.2
0.6
1.3
3.7
4.6
1.7
0.0
0.0
48023
1.1
0.7
0.2
2.5
0.5
0.3
0.0
0.0
48025
1.3
0.3
1.6
8.0
1.9
1.1
0.5
0.0
48027
10.4
3.0
0.7
14.6
17.3
7.5
0.0
0.0
48033
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
48035
4.4
1.0
0.1
1.9
1.2
0.6
1.7
0.0
48037
7.1
3.5
0.3
7.6
10.4
3.8
0.7
0.6
48039
14.1
4.5
4.7
15.6
12.6
7.9
65.9
5.9
48041
3.8
2.9
1.1
11.9
11.7
5.4
4.2
0.1
48045
0.2
0.0
0.0
0.6
0.1
0.0
0.0
0.0
48047
0.5
0.2
1.8
2.8
1.3
0.7
1.3
0.1
48049
1.7
0.8
3.4
11.3
2.4
1.3
0.2
0.2
48051
4.8
0.6
0.9
7.9
2.2
1.0
0.0
0.0
48059
4.9
0.4
0.7
6.8
4.6
1.6
0.0
0.0
48061
8.9
10.1
0.7
16.6
15.7
10.5
9.5
0.3
48063
2.8
0.4
0.0
1.3
0.9
0.4
0.0
0.0
48065
2.1
0.2
0.8
3.3
0.7
0.3
0.8
0.0
48067
7.0
1.9
0.4
4.2
3.2
1.4
4.8
0.8
48071
1.7
1.2
5.3
4.5
6.0
3.2
36.7
2.4
48073
4.8
1.7
0.7
5.7
3.5
1.9
5.8
0.3
48075
2.2
0.3
0.1
1.5
1.3
0.5
0.0
0.0
48077
1.0
0.6
0.4
8.0
2.0
1.0
0.1
0.0
48081
0.1
0.6
0.2
2.2
0.4
0.2
1.5
0.0
48083
1.5
0.4
2.1
7.4
0.9
0.6
0.0
0.0
48085
19.8
10.9
2.0
11.7
21.9
11.1
2.9
0.4
48087
1.2
0.2
1.9
3.2
0.3
0.2
0.0
0.0
48089
3.4
0.7
1.4
4.0
6.3
2.6
1.9
0.0
48093
1.5
0.5
0.9
3.2
1.3
0.7
0.0
0.0
48095
0.9
0.3
0.3
2.3
0.6
0.3
0.0
0.0
48097
3.4
1.0
0.3
12.9
4.0
1.7
0.0
0.0
48099
1.1
0.5
0.2
3.5
2.3
1.3
0.0
0.0
48101
0.5
0.1
0.3
1.1
0.3
0.1
0.0
0.0
48105
3.8
0.3
21.5
29.3
1.5
0.6
0.0
0.0
48107
0.4
0.1
0.0
1.1
0.2
0.1
0.0
0.0
48113
67.5
60.1
15.5
64.0
218.8
91.6
25.4
2.4
48119
0.4
0.1
0.0
0.8
0.5
0.2
0.0
0.0
48121
8.7
8.8
2.6
15.8
24.0
11.3
1.7
1.2
48125
0.5
0.1
0.0
1.4
0.3
0.1
0.0
0.0
48127
0.2
0.1
0.8
3.3
1.0
0.5
0.4
0.1
48129
2.0
0.4
0.0
0.9
1.7
0.8
0.0
0.0
48131
1.2
0.3
2.7
7.8
1.3
0.6
0.7
0.0
D­
28
48133
5.8
0.7
4.9
10.6
3.4
1.5
0.9
0.1
48137
0.4
0.0
1.9
2.2
0.2
0.1
0.0
0.0
48139
12.2
2.2
0.3
9.3
10.6
4.3
28.8
1.6
48143
1.5
0.5
1.4
4.8
2.4
1.3
0.0
0.0
48145
5.6
0.6
0.1
2.6
1.9
1.0
0.0
0.0
48147
1.7
0.5
0.3
3.9
1.9
0.9
12.7
0.4
48151
3.1
0.3
0.1
3.6
0.6
0.3
0.0
0.0
48153
0.6
0.1
0.0
0.5
0.2
0.1
0.0
0.0
48155
0.7
0.1
0.3
1.4
0.3
0.1
0.0
0.0
48157
13.1
6.9
1.8
12.2
14.7
8.9
117.0
1.0
48159
0.7
0.3
0.2
1.8
1.3
0.5
0.1
0.0
48161
3.8
0.4
4.8
9.3
4.6
1.7
39.0
0.3
48167
7.1
6.0
3.6
10.7
13.6
9.0
73.4
5.7
48169
0.6
0.1
0.0
2.4
0.3
0.1
0.0
0.0
48177
3.7
0.5
0.1
3.0
4.2
1.5
0.0
0.0
48179
3.7
0.7
5.5
19.0
3.0
1.2
11.4
4.4
48181
9.4
3.0
0.8
13.1
9.4
3.8
1.2
0.0
48183
6.5
2.8
3.1
17.3
10.0
6.0
3.9
1.4
48185
8.0
0.9
1.4
3.3
2.5
1.2
20.2
0.2
48191
1.6
0.2
0.0
1.3
0.7
0.4
0.0
0.0
48193
0.7
0.2
0.1
1.5
0.8
0.4
0.0
0.0
48195
0.8
0.1
1.3
2.2
0.1
0.1
8.7
0.4
48197
2.5
0.3
0.2
2.4
1.2
0.5
0.0
0.0
48199
3.6
1.9
0.6
5.6
4.6
2.4
0.7
0.3
48201
93.0
78.6
19.2
102.1
188.0
117.1
186.0
25.6
48203
5.8
1.0
3.3
11.2
10.5
3.9
37.0
1.2
48207
2.2
0.5
0.2
3.8
0.9
0.5
1.2
0.0
48211
2.6
0.2
6.5
7.3
0.4
0.2
1.0
0.1
48213
6.0
2.1
1.4
8.1
4.1
2.3
1.0
0.1
48215
15.3
7.2
7.2
30.0
27.7
19.4
6.1
0.7
48217
6.8
1.2
0.2
4.7
6.0
2.4
0.0
0.0
48221
1.0
0.6
1.3
3.3
1.9
1.0
28.3
0.4
48223
2.7
0.6
0.1
4.3
4.8
1.7
0.0
0.0
48225
2.9
0.8
0.3
3.2
2.1
0.9
0.0
0.0
48227
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
48231
3.0
1.4
0.3
8.4
7.7
3.2
0.2
0.0
48233
0.2
0.1
1.0
4.7
0.2
0.1
0.0
0.0
48235
0.3
0.1
1.1
7.0
0.2
0.1
0.3
0.1
48237
1.2
0.3
5.9
14.6
0.8
0.4
0.2
0.0
48241
8.4
2.7
0.4
3.1
4.1
2.1
2.4
0.4
48245
21.8
6.3
7.8
17.2
25.1
12.6
69.4
6.6
48247
0.2
0.1
0.9
1.8
0.3
0.2
0.1
0.0
48249
2.2
0.6
1.7
5.4
3.6
2.0
3.6
0.7
48251
8.1
2.1
0.3
7.9
7.3
3.7
5.9
0.4
48253
2.0
0.5
0.1
5.9
2.2
1.1
5.6
0.2
48257
4.6
0.8
0.2
5.8
8.7
4.1
0.0
0.0
48261
2.6
7.8
0.5
1.5
1.1
0.5
0.5
0.0
48263
0.2
0.1
0.0
2.2
0.2
0.1
1.9
0.2
48267
0.1
0.2
0.1
1.1
1.8
0.8
0.1
0.0
D­
29
48269
0.1
0.0
0.2
2.4
0.2
0.2
0.0
0.0
48271
4.4
0.2
0.0
0.4
0.5
0.3
0.0
0.0
48273
2.3
3.9
1.4
4.4
2.4
1.5
7.5
0.0
48275
1.5
0.3
0.3
3.1
0.5
0.2
0.0
0.0
48277
6.2
1.4
0.2
6.4
3.4
1.8
0.6
0.2
48281
0.5
0.3
0.0
1.4
1.2
0.6
0.0
0.0
48283
0.8
0.3
1.2
2.9
2.2
0.9
0.0
0.0
48289
5.5
0.5
1.5
4.5
4.4
1.5
0.0
0.0
48291
6.4
2.1
0.6
6.0
4.9
3.2
6.3
0.4
48293
5.3
0.8
1.7
5.4
1.6
0.8
85.5
0.7
48295
2.2
0.2
4.7
6.8
0.3
0.2
3.2
0.0
48297
6.7
1.0
1.7
4.2
3.8
1.6
2.5
0.5
48307
1.7
0.3
0.2
2.4
0.9
0.5
0.0
0.0
48309
8.4
4.9
0.5
15.3
18.9
8.2
56.6
0.6
48311
2.2
0.6
3.1
6.0
0.3
0.2
0.1
0.2
48313
0.4
0.2
0.2
1.9
3.0
1.1
0.3
0.0
48315
1.9
1.1
0.3
1.9
1.1
0.5
6.0
0.5
48319
0.2
0.1
0.0
0.8
0.4
0.2
0.0
0.0
48321
13.2
7.6
1.5
6.6
3.0
1.4
3.7
0.2
48323
0.6
0.5
0.5
4.2
2.4
1.5
0.0
0.0
48327
0.1
0.1
0.1
0.9
0.4
0.2
0.0
0.0
48331
7.9
0.8
0.1
8.6
2.8
1.4
77.6
4.0
48333
0.6
0.1
0.0
1.0
0.7
0.3
0.0
0.0
48335
1.3
0.4
0.0
10.3
2.3
0.7
5.4
0.1
48337
4.6
0.7
0.3
11.8
1.8
0.8
0.0
0.0
48339
7.3
5.3
2.0
11.0
16.8
10.0
15.3
0.5
48343
1.9
0.5
0.0
1.6
1.8
0.7
0.5
0.0
48345
0.5
0.1
0.0
0.9
0.2
0.1
0.0
0.0
48347
1.9
3.8
1.1
7.4
6.0
2.6
0.4
3.3
48349
7.4
1.4
0.2
9.5
5.4
2.4
3.9
0.5
48351
1.0
2.7
0.3
2.1
1.5
0.9
0.2
0.3
48353
3.9
0.7
0.4
5.2
4.4
1.4
4.8
0.1
48355
43.3
28.8
0.9
43.3
20.8
15.1
54.4
5.8
48357
3.4
0.5
4.7
9.4
0.9
0.5
2.3
0.1
48361
7.3
1.5
0.5
4.0
11.2
4.9
34.3
3.3
48363
6.4
1.4
7.3
11.3
2.6
1.3
2.9
0.1
48365
4.2
1.0
10.1
16.4
3.2
1.3
6.4
0.7
48367
6.9
1.4
4.8
9.6
7.5
3.5
2.0
0.2
48373
1.3
2.9
0.6
4.0
5.0
2.1
1.1
2.5
48379
0.3
0.5
0.1
0.8
0.8
0.4
0.0
0.0
48383
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
48385
0.1
0.1
0.0
0.3
0.2
0.1
0.0
0.0
48387
0.9
0.4
0.0
2.2
1.1
0.5
0.0
0.0
48393
1.6
0.1
3.0
4.0
0.2
0.1
0.0
0.0
48395
10.5
0.8
0.5
2.9
2.2
1.0
4.8
0.0
48397
1.3
1.0
0.1
2.1
3.5
1.4
0.0
0.0
48399
1.9
0.4
0.3
4.3
1.0
0.5
0.0
0.0
48401
6.3
2.9
6.0
9.6
3.5
2.0
78.9
1.2
48403
2.4
1.5
0.0
1.1
1.1
0.5
0.2
0.1
D­
30
48405
2.2
2.5
0.0
0.9
1.0
0.4
0.0
0.0
48407
0.4
0.9
0.2
1.6
2.6
1.3
0.0
0.0
48409
19.6
20.6
0.2
15.4
4.7
3.6
7.5
0.5
48411
0.5
0.2
0.0
1.1
0.4
0.3
0.0
0.0
48413
0.7
0.1
3.2
4.9
0.4
0.2
0.2
0.0
48415
4.8
0.6
0.1
13.0
2.3
0.7
1.0
0.0
48417
0.5
0.2
1.2
11.4
0.8
0.4
0.0
0.0
48419
4.2
5.2
1.1
3.9
2.5
1.0
0.0
0.0
48423
8.7
3.6
1.1
13.5
15.1
10.1
2.6
2.1
48425
0.2
0.3
0.0
0.5
0.5
0.3
0.0
0.0
48427
2.0
0.5
5.3
8.3
2.8
2.0
0.8
0.2
48429
1.6
0.7
3.7
10.1
0.7
0.4
0.0
0.0
48431
0.7
0.1
3.0
8.4
0.5
0.2
0.0
0.0
48433
0.5
0.1
0.0
3.6
0.5
0.2
0.0
0.0
48435
2.6
0.2
16.3
16.1
1.7
0.6
2.8
0.2
48439
50.2
32.6
7.9
47.9
141.2
57.6
13.1
1.4
48441
7.1
3.2
0.5
14.3
14.6
5.8
0.0
0.0
48447
0.8
0.2
0.4
5.7
0.2
0.1
0.0
0.0
48449
2.6
0.9
0.1
3.3
3.8
1.4
141.2
1.2
48451
3.2
2.6
0.6
11.9
6.0
3.0
2.3
0.1
48455
1.4
1.1
0.0
1.2
1.2
0.5
0.0
0.0
48457
0.5
1.6
0.1
2.3
1.9
0.9
0.0
0.0
48459
6.0
0.7
3.9
11.8
2.9
1.3
0.0
0.0
48463
7.5
1.0
0.1
1.4
2.4
1.6
0.0
0.0
48465
3.1
1.9
0.8
3.6
2.0
1.1
0.0
0.0
48467
4.2
0.6
0.3
4.6
5.8
2.7
0.1
0.0
48471
2.6
1.9
0.2
3.5
7.9
3.1
0.2
0.0
48473
5.0
0.6
0.4
1.9
4.5
3.0
4.9
0.2
48477
2.4
0.9
0.9
4.5
3.7
1.6
0.0
0.0
48479
5.8
2.7
15.9
24.4
10.5
5.8
3.8
0.2
48481
4.7
1.2
2.5
9.3
5.2
2.3
1.4
0.1
48483
1.6
0.2
4.2
7.0
2.4
0.7
0.3
0.0
48485
3.2
2.5
0.6
38.9
8.4
4.6
16.7
0.0
48487
3.0
0.6
0.4
7.2
1.9
1.0
23.4
0.0
48489
3.3
3.4
0.3
3.1
1.2
0.9
0.0
0.0
48497
8.6
1.2
16.5
22.2
4.8
2.4
2.9
0.2
48499
3.8
1.5
0.5
6.1
1.9
1.1
2.9
0.1
48503
1.3
0.7
1.6
17.1
1.1
0.6
20.2
0.3
48505
1.8
1.3
10.4
10.5
1.0
0.6
0.8
0.1
48507
0.7
0.2
0.7
2.3
1.0
0.6
0.0
0.0
D­
31
Figure
D­
1.
1999
Estimated
NOx
Emissions
in
Tons/
Day
for
the
San
Antonio
EAC
Region
during
the
September
1999
episode.

Modeling
Day
Mobile
Point
Area
Non­
Road
Total
Day
1
141.1
114.0
4.5
43.6
303.3
Day
2
142.2
104.6
4.5
43.6
298.2
Day
3
143.6
101.3
4.5
43.6
296.3
Day
4
147.9
101.9
4.5
43.6
301.2
Day
5
135.8
114.9
4.5
43.6
302.2
Day
6
83.4
99.2
3.9
22.7
209.2
Day
7
59.5
93.7
3.4
21.9
178.5
Day
8
145.8
101.4
4.5
43.6
298.7
141
142
144
148
136
83
59
146
114
105
101
102
115
99
94
101
44
44
44
44
44
23
22
44
4
3
4
4
4
4
4
4
0
80
160
240
320
9/
13
9/
14
9/
15
9/
16
9/
17
9/
18
9/
19
9/
20
Modeling
Day
Tons/
Day
Non­
Road
Area
Point
Mobile
D­
32
Figure
D­
2.
1999
Estimated
VOC
Emissions
in
Tons/
Day
for
the
San
Antonio
EAC
Region
during
the
September
1999
episode.

Modeling
Day
Mobile
Point
Area
Non­
Road
Total
Day
1
88.4
7.5
87.3
43.4
226.5
Day
2
88.1
7.3
87.3
43.4
226.1
Day
3
88.8
7.2
87.3
43.4
226.7
Day
4
89.4
7.2
87.3
43.4
227.4
Day
5
93.1
7.6
87.3
43.4
231.4
Day
6
60.2
6.9
66.1
52.9
186.1
Day
7
48.5
6.9
35.4
52.7
143.5
Day
8
95.3
7.1
87.3
43.4
233.2
88
88
89
89
93
60
48
95
87
87
87
87
87
66
35
87
43
43
43
43
43
53
53
43
7
7
7
8
7
7
7
7
0
80
160
240
320
9/
13
9/
14
9/
15
9/
16
9/
17
9/
18
9/
19
9/
20
Modeling
Day
Tons/
Day
Non­
Road
Area
Point
Mobile
D­
33
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