Henderson
County,
Kentucky
The
Evansville­
Henderson,
Indiana­
Kentucky
MSA,
(
Metropolitan
Statistical
Area)
encompasses
two
states
and
four
counties.
It
includes
Henderson
County
in
Kentucky
and
Posey,
Vanderburgh,
and
Warrick
Counties
in
Indiana.
Gibson
County,
Indiana,
which
is
not
in
the
Evansville­
Henderson
MSA,
was
also
included
in
this
document
for
study
purposes.
In
2001,
this
MSA
was
listed
as
the
133rd
largest
MSA
within
the
United
States.
Henderson
Posey
Vanderburgh
Warrick
Gibson
HENDERSON
COUNTY,
KENTUCKY
Henderson
County
is
part
of
the
Evansville­
Henderson,
Indiana­
Kentucky
Metropolitan
Statistical
Area
(
MSA)
and
is
located
to
the
west
of
Daviess
County,
Kentucky,
to
the
northwest
of
McLean
County,
Kentucky,
to
the
north
of
Webster
County,
Kentucky,
and
to
the
northeast
of
Union
County,
Kentucky.
Additionally
it
is
located
to
the
southeast
of
Posey
County,
Indiana,
to
the
south
of
Vanderburgh
County,
and
to
the
southwest
of
Warrick
County,
Indiana.

Geography/
Topography
Henderson
County
has
a
land
area
of
440
square
miles
and
is
located
in
northwestern
Kentucky
where
the
banks
of
the
Ohio
River
form
the
northern
boundary
of
the
county.
It
is
part
of
the
Western
Kentucky
Coal
Field
Region.

Meteorological
Information
Due
to
the
close
proximity
of
Evansville,
Indiana,
meteorological
data
from
Evansville
was
used
for
this
Kentucky
area.
Wind
speed/
wind
direction
information
shows
that
the
majority
of
the
time
for
the
period
1988
 
1992,
the
wind
in
the
Henderson
County
area
came
from
the
southwest
and
typically
from
7­
10
knots.
(
See
figure
1­
A)
The
mean
high
temperature
for
July
for
the
area
from
July
1961
through
1990
was
87
°
F,
the
mean
low
was
67
°
F.
The
mean
precipitation
for
the
same
period
was
4.5
inches.

Planning
The
authority
for
air
quality
planning
in
the
Henderson
County
area
resides
with
the
Kentucky
Natural
Resources
and
Environmental
Protection
Cabinet.
Transportation
planning
for
all
of
Henderson
County
is
performed
by
the
Evansville
Urban
Transportation
Study
(
EUTS),
which
is
the
Metropolitan
Planning
Organization.

Air
Monitoring
For
the
2000
 
2002
monitoring
period,
the
ozone
monitor
(
21­
101­
0014)
in
Henderson
County,
Kentucky,
shows
an
8­
hour
design
value
of
.079
which
would
be
classified
as
a
county
in
attainment
of
the
standard.
However,
because
of
a
Posey
County,
Indiana,
ozone
monitor
with
a
design
value
of
.087
parts
per
million
(
ppm),
Henderson
County,
information
is
being
presented
in
this
document.
(
See
table
1­
A)

Population
Based
on
projections
to
2001
from
the
2000
census
data,
there
are
44,835
persons
living
in
Henderson
County.
That
represents
approximately
102
persons
per
square
mile.
The
population
of
Henderson
County
is
approximately
41%
rural
with
the
remaining
59%
living
in
incorporated
areas.
The
largest
city
in
Henderson
County
is
Henderson.

Henderson
County's
population
from
1990
through
2000
increased
by
approximately
4%
(
43,044
to
44,829).
The
population
is
further
expected
to
increase
by
an
additional
3%
between
2000
and
2010.
(
See
table
1­
B)

Based
on
2001
population
data
for
the
Evansville­
Henderson
study
area,
Henderson
County
represents
approximately
14%
of
the
total
2001
population
in
the
study
area
and
100%
of
the
Kentucky
portion
of
the
study
area.
(
See
table
1­
C)

Air
Emissions
Point
source
VOC
emissions
from
Henderson
County
were
estimated
at
2.43
tons
per
summer
day
(
tpsd)
in
1999
which
represents
approximately
11%
of
the
total
21.52
tpsd
overall
VOC
point
source
emissions
from
the
Evansville­
Henderson
study
area.
Point
source
NOx
emissions
from
Henderson
County
were
estimated
at
2.63
tpsd
in
1999
which
represents
approximately
1%
of
the
total
227.89
tpsd
overall
NOx
point
source
emissions
from
the
Evansville­
Henderson
study
area.
(
See
table
1­
D)

1999
Evansville­
Henderson
Study
Area
Point
Source
Emissions
(
tons
per
summer
day)

Point
sources
located
within
Henderson
County
are
subject
to
PSD
requirements,
CTG
RACT
requirements,
Maximum
Achievable
Control
VOC
Emissions
tons
per
summer
day
Posey
33%
Henderson
11%
Gibson
9%
Warrick
9%
Vanderburgh
38%

NOx
Emissions
tons
per
summer
day
Vanderburgh
0%
Warrick
31%
Gibson
56%

Henderson
1%

Posey
12%
Technology
(
MACT)
requirements
for
sources
of
Hazardous
Air
Pollutants,
and
New
Source
Performance
Standards
(
NSPS).

Onroad
mobile
source
VOC
emissions
from
Henderson
County
were
estimated
at
3.85
tpsd
in
1999
which
represents
approximately
15%
of
the
total
26.10
tpsd
of
overall
VOC
onroad
mobile
source
emissions
from
the
Kentucky
portion
of
the
Evansville­
Henderson
study
area.
Onroad
mobile
source
NOx
emissions
from
Henderson
County
were
estimated
at
4.61
tpsd
in
1999
which
represents
approximately
14%
of
the
total
33.61
tpsd
of
overall
NOx
onroad
mobile
source
emissions
from
the
Kentucky
portion
of
the
Evansville­
Henderson
study
area.
(
See
table
1­
D)

1999
Evansville­
Henderson
County
Study
Area
Onroad
Mobile
Source
Emissions
(
tons
per
summer
day)

Commuting
traffic
from
other
counties
into
Henderson
County
is
minimal,
and
the
commuting
traffic
from
Henderson
County
into
other
counties
is
minimal.

Commuting
Classifications
Not
Significant
0­
10%
Minimal
11­
30%
High
31­
50%
Significant
51%
or
more
VOC
Emissions
tons
per
summer
day
Posey
11%
Henderson
15%
Gibson
12%
Warrick
14%
Vanderburgh
48%

NOx
Emissions
tons
per
summer
day
Vanderburgh
41%
Warrick
18%

Gibson
14%

Henderson
14%
Posey
13%
1999
VOC
Contribution
(
tons
per
summer
day)

1999
NOx
Contribution
(
tons
per
summer
day)
2.43
3.85
7.18
2.78
8.16
12.68
1.91
3.74
1.84
3.05
0
5
10
15
20
25
Henderson
Posey
Vanderburgh
Warrick
Gibson
Mobile
Point
2.63
4.61
27.09
4.28
0.98
13.7
69.94
6.18
127.25
4.84
0
20
40
60
80
100
120
140
Henderson
Posey
Vanderburgh
Warrick
Gibson
Mobile
Point
Conclusion
and
Recommendation
Henderson
County,
based
on
2000
 
2002
ozone
monitoring
data,
is
meeting
the
8­
hour
ozone
standard
with
a
design
value
of
.079
ppm.
Historic
monitoring
data
shows
that
the
county
has
been
in
compliance
since
the
99­
01
period.
The
Henderson
monitor
has
routinely
recorded
4th
highest
maximum
values
below
the
0.085
level.
Predominant
wind
patterns
would
typically
have
Henderson
County,
Kentucky,
emissions
moving
away
from
the
violating
monitor
in
Indiana
(
Posey
County).
The
monitoring
and
emissions
data
and
other
documentation
presented
indicate
that
Henderson
County,
Kentucky,
does
not
contribute
a
significant
amount
of
ozone
forming
emissions
in
the
Evansville­
Henderson
MSA.
Henderson
County
contributes
approximately
13%
of
the
total
VOC
emissions
and
less
than
3%
of
the
total
NOx
emissions
in
the
study
area.
Therefore,
Henderson
County
should
be
designated
attainment
for
the
8­
hour
ozone
standard.
Henderson
County,
Kentucky
Figure
1­
A
Wind
Rose
Patterns
Figure
1­
B
1999
Evansville­
Henderson
MSA
VOC
and
NOx
Emissions
(
tons
per
summer
day)

6.28
7.24
9.96
31.37
20.84
14.68
5.65
76.12
4.89
132.09
0
20
40
60
80
100
120
140
Henderson
Posey
Vanderburgh
Warrick
Gibson
VOC
NOx
Table
1­
A
Evansville­
Henderson
MSA
Ozone
8­
Hour
Design
Values
(
parts
per
million)
County
2000
2001
2002
Design
Value
Kentucky
Henderson­
21­
101­
0014
.078
.074
.087
.079
Indiana
Posey
 
18­
129­
0003
.085
.079
.097
.087
Warrick
 
18­
173­
0002
.077
.081
.094
.084
Warrick
 
18­
173­
0008
.073
.078
.091
.080
Warrick
 
18­
173­
0009
.077
.075
.090
.080
Vanderburgh
­
18­
163­
0012
.081
.073
.095
.083
Vanderburgh
­
18­
163­
0013
.075
.072
.086
.077
4th
Highest
8­
Hour
Value
8­
Hour
Avg.
Design
Value
1996
1997
1998
1999
2000
2001
96­
98
97­
99
98­
00
99­
01
Kentucky
Henderson
.088
.082
.082
.096
.078
.074
.084
.086
.085
.082
Indiana
Posey
.054
.087
.092
.096
.085
.079
.077
.091
.091
.086
Warrick­
0002
.093
.091
.096
.095
.077
.081
.093
.094
.089
.084
Warrick­
0008
.090
.095
.091
.087
.073
.078
.092
.091
.083
.079
Warrick­
0009
.094
.094
.093
.092
.077
.075
.093
.093
.087
.081
Vanderburgh­
12
.090
.093
.092
.098
.081
.073
.091
.094
.090
.084
Vanderburgh­
13
.094
.089
.094
.091
.075
.072
.092
.091
.086
.079
Table
1­
B
Henderson
County
Kentucky
Population
Growth
Data
County
1990
2000
%
Growth
1990
 
2000
2010
%
Growth
2000
 
2010
Kentucky
Henderson
43,044
44,829
4.1%
46,303
3.3%

Indiana
Posey
25,968
27,061
4.2%
26,605
­
1.7%

Warrick
44,920
52,383
16.6%
56,631
8.1%

Vanderburgh
165,058
171,922
4.2%
174,355
1.4%

Gibson*
31,913
32,500
1.8%
32,904
1.2%

*
Gibson
County,
Indiana
is
not
part
of
the
Evansville­
Henderson
MSA.
Table
1­
C
2001
Estimated
Evansville­
Henderson
MSA
Population
Kentucky
Estimated
Population
Henderson
County
44,835
Indiana
Estimated
Population
Posey
County
27,067
Vanderburgh
County
171,268
Warrick
County
53,080
Total
MSA
Estimated
Population
296,250
Gibson
County*
32,716
Total
Estimated
Population
328,966
*
Gibson
County,
Indiana,
is
not
part
of
the
Evansville­
Henderson
MSA,
but
is
provided
for
comparison.

Table
1­
D
1999
Evansville­
Henderson
MSA
VOC
and
NOx
Emissions
(
tons
per
summer
day)

VOC
NOx
County
Point
Mobile
Total
Point
Mobile
Total
Henderson
2.43
3.85
6.28
2.63
4.61
7.24
Posey
7.18
2.78
9.96
27.09
4.28
31.37
Vanderburgh
8.16
12.68
20.84
0.98
13.70
14.68
Warrick
1.91
3.74
5.65
69.94
6.18
76.12
Gibson*
1.84
3.05
4.89
127.25
4.84
132.09
Total
Emissions
21.52
26.10
47.62
227.89
33.61
261.50
*
Gibson
County,
Indiana,
is
not
part
of
the
Evansville­
Henderson
MSA.
