Document ID: EPA-HQ-OAR-2003-0090-0248
Agency: epa
Document Type: Supporting & Related Material
Title: 
Posted Date: 2004-04-07T04:00Z

Appendix
A.
Differences
in
Maximum
Predicted
Daily
8­
hour
Averaged
Ozone
Concentrations
Between
the
2007
Future
Case
with
No
Local
Controls
Applied
and
with
Emission
Control
Scenarios
Under
Evaluation
by
the
Austin
MSA
2
Appendix
A
includes
ozone
isopleth
maps
showing
differences
in
maximum
predicted
daily
8­
hour
averaged
ozone
concentrations
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
emission
control
scenarios
under
evaluation
by
the
Austin
MSA.
The
following
figures/
scenarios
have
been
included:

Figure
No.
Emission
Control
Scenario
A.
1­
A.
6
I&
M
programs
in
Travis
and
Williamson
Counties
only
A.
7­
A12
Voluntary
point
source
reductions
in
the
Austin
area
A.
13­
A.
18
TERP
implementation
in
the
Austin
area
A.
19­
A.
24
Area
source
VOC
reductions
in
the
Austin
area
A.
25­
A.
30
All
controls
excluding
low
RVP
gasoline
and
I&
M
in
Hays
County
A.
31­
A.
36
All
controls
excluding
low
RVP
gasoline
and
I&
M
in
Hays
County
and
with
Alcoa
emissions
reduced
from
26.7
tpd
to
4.44
tpd
A.
37­
A.
42
All
controls
excluding
low
RVP
gasoline,
I&
M
in
Hays
County,
and
commute
program
reductions
A.
43­
A.
48
All
controls
excluding
low
RVP
gasoline
and
I&
M
in
all
counties
A.
49­
A54
Doubling
VOC
emissions
form
point
sources
in
the
Austin
area
The
final
package
of
emission
controls
adopted
for
Austin's
EAC
is
underlined
above.
3
Figure
A.
1.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
15
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
I&
M
programs
in
Travis
and
Williamson
Counties.
4
Figure
A.
2.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
16
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
I&
M
programs
in
Travis
and
Williamson
Counties.
5
Figure
A.
3.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
17
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
I&
M
programs
in
Travis
and
Williamson
Counties.
6
Figure
A.
4.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
18
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
I&
M
programs
in
Travis
and
Williamson
Counties.
7
Figure
A.
5.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
19
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
I&
M
programs
in
Travis
and
Williamson
Counties.
8
Figure
A.
6.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
20
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
I&
M
programs
in
Travis
and
Williamson
Counties.
9
Figure
A.
7.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
15
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
voluntary
point
source
reductions
in
the
Austin
area.
10
Figure
A.
8.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
16
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
voluntary
point
source
reductions
in
the
Austin
area.
11
Figure
A.
9.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
17
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
voluntary
point
source
reductions
in
the
Austin
area.
12
Figure
A.
10.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
18
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
voluntary
point
source
reductions
in
the
Austin
area.
13
Figure
A.
11.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
19
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
voluntary
point
source
reductions
in
the
Austin
area.
14
Figure
A.
12.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
20
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
voluntary
point
source
reductions
in
the
Austin
area.
15
Figure
A.
13.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
15
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
the
TERP
program
in
the
Austin
area.
16
Figure
A.
14.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
16
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
the
TERP
program
in
the
Austin
area.
17
Figure
A.
15.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
17
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
the
TERP
program
in
the
Austin
area.
18
Figure
A.
16.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
18
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
the
TERP
program
in
the
Austin
area.
19
Figure
A.
17.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
19
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
the
TERP
program
in
the
Austin
area.
20
Figure
A.
18.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
20
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
the
TERP
program
in
the
Austin
area.
21
Figure
A.
19.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
15
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
area
source
VOC
reductions
in
the
Austin
area.
22
Figure
A.
20.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
16
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
area
source
VOC
reductions
in
the
Austin
area.
23
Figure
A.
21.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
17
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
area
source
VOC
reductions
in
the
Austin
area.
24
Figure
A.
22.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
18
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
area
source
VOC
reductions
in
the
Austin
area.
25
Figure
A.
23.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
19
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
area
source
VOC
reductions
in
the
Austin
area.
26
Figure
A.
24.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
20
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
area
source
VOC
reductions
in
the
Austin
area.
27
Figure
A.
25.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
15
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
all
controls
in
the
CAAP
for
the
Austin
area
excluding
low
RVP
gasoline
and
I&
M
in
Hays
County.
28
Figure
A.
26.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
16
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
all
controls
in
the
CAAP
for
the
Austin
area
excluding
low
RVP
gasoline
and
I&
M
in
Hays
County.
29
Figure
A.
27.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
17
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
all
controls
in
the
CAAP
for
the
Austin
area
excluding
low
RVP
gasoline
and
I&
M
in
Hays
County.
30
Figure
A.
28.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
18
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
all
controls
in
the
CAAP
for
the
Austin
area
excluding
low
RVP
gasoline
and
I&
M
in
Hays
County.
31
Figure
A.
29.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
19
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
all
controls
in
the
CAAP
for
the
Austin
area
excluding
low
RVP
gasoline
and
I&
M
in
Hays
County.
32
Figure
A.
30.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
20
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
all
controls
in
the
CAAP
for
the
Austin
area
excluding
low
RVP
gasoline
and
I&
M
in
Hays
County.
33
Figure
A.
31.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
15
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
all
controls
in
the
CAAP
for
the
Austin
area
excluding
low
RVP
gasoline
and
I&
M
in
Hays
County,
and
with
Alcoa
emissions
reduced
from
26.7
tpd
to
4.44
tpd.
34
Figure
A.
32.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
16
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
all
controls
in
the
CAAP
for
the
Austin
area
excluding
low
RVP
gasoline
and
I&
M
in
Hays
County
and
with
Alcoa
emissions
reduced
from
26.7
tpd
to
4.44
tpd.
35
Figure
A.
33.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
17
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
all
controls
in
the
CAAP
for
the
Austin
area
excluding
low
RVP
gasoline
and
I&
M
in
Hays
County
and
with
Alcoa
emissions
reduced
from
26.7
tpd
to
4.44
tpd.
36
Figure
A.
34.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
18
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
all
controls
in
the
CAAP
for
the
Austin
area
excluding
low
RVP
gasoline
and
I&
M
in
Hays
County,
and
with
Alcoa
emissions
reduced
from
26.7
tpd
to
4.44
tpd.
37
Figure
A.
35.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
19
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
all
controls
in
the
CAAP
for
the
Austin
area
excluding
low
RVP
gasoline
and
I&
M
in
Hays
County,
and
with
Alcoa
emissions
reduced
from
26.7
tpd
to
4.44
tpd.
38
Figure
A.
36.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
20
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
all
controls
in
the
CAAP
for
the
Austin
area
excluding
low
RVP
gasoline
and
I&
M
in
Hays
County,
and
with
Alcoa
emissions
reduced
from
26.7
tpd
to
4.44
tpd.
39
Figure
A.
37.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
15
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
all
controls
in
the
CAAP
for
the
Austin
area
excluding
low
RVP
gasoline,
I&
M
in
Hays
County,
and
commute
program
reductions.
40
Figure
A.
38.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
16
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
all
controls
in
the
CAAP
for
the
Austin
area
excluding
low
RVP
gasoline,
I&
M
in
Hays
County,
and
commute
program
reductions.
41
Figure
A.
39.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
17
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
all
controls
in
the
CAAP
for
the
Austin
area
excluding
low
RVP
gasoline,
I&
M
in
Hays
County,
and
commute
program
reductions.
42
Figure
A.
40.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
18
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
all
controls
in
the
CAAP
for
the
Austin
area
excluding
low
RVP
gasoline,
I&
M
in
Hays
County,
and
commute
program
reductions.
43
Figure
A.
41.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
19
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
all
controls
in
the
CAAP
for
the
Austin
area
excluding
low
RVP
gasoline,
I&
M
in
Hays
County,
and
commute
program
reductions.
44
Figure
A.
42.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
20
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
all
controls
in
the
CAAP
for
the
Austin
area
excluding
low
RVP
gasoline,
I&
M
in
Hays
County,
and
commute
program
reductions.
45
Figure
A.
43.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
15
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
all
controls
in
the
CAAP
for
the
Austin
area
excluding
low
RVP
gasoline
and
I&
M
in
all
counties.
46
Figure
A.
44.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
16
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
all
controls
in
the
CAAP
for
the
Austin
area
excluding
low
RVP
gasoline
and
I&
M
in
all
counties.
47
Figure
A.
45.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
17
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
all
controls
in
the
CAAP
for
the
Austin
area
excluding
low
RVP
gasoline
and
I&
M
in
all
counties.
48
Figure
A.
46.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
18
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
all
controls
in
the
CAAP
for
the
Austin
area
excluding
low
RVP
gasoline
and
I&
M
in
all
counties.
49
Figure
A.
47.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
19
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
all
controls
in
the
CAAP
for
the
Austin
area
excluding
low
RVP
gasoline
and
I&
M
in
all
counties.
50
Figure
A.
48.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
20
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
all
controls
in
the
CAAP
for
the
Austin
area
excluding
low
RVP
gasoline
and
I&
M
in
all
counties.
51
Figure
A.
49.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
15
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
doubling
point
source
VOC
emissions
in
the
Austin
area.
52
Figure
A.
50.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
16
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
doubling
point
source
VOC
emissions
in
the
Austin
area.
53
Figure
A.
51.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
17
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
doubling
point
source
VOC
emissions
in
the
Austin
area.
54
Figure
A.
52.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
18
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
doubling
point
source
VOC
emissions
in
the
Austin
area.
55
Figure
A.
53.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
19
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
doubling
point
source
VOC
emissions
in
the
Austin
area.
56
Figure
A.
54.
Difference
in
predicted
daily
maximum
8­
hour
averaged
ozone
concentrations
on
September
20
between
the
2007
Future
Case
with
no
local
controls
applied
and
with
doubling
point
source
VOC
emissions
in
the
Austin
area.