Document ID: EPA-HQ-OAR-2003-0083-1473
Agency: epa
Document Type: Supporting & Related Material
Title: 
Posted Date: 2004-04-01T05:00Z

Hawkins
County
Technical
Support
Documentation
Summary
Hawkins
County
has
a
land
area
of
487
square
miles
and
is
located
in
the
ridge
and
valley
terrain
of
the
East
Grand
Division
of
the
state
north
of
I­
81
and
just
west
of
the
Kingsport
area
bordering
Virginia.
The
predominate
wind
direction
and
speed
is
from
the
south­
southwest
at
7
to
10
knots.

Hawkins
County
does
not
have
an
ozone
monitor.
For
the
2001­
2003
monitoring
period,
the
ozone
monitors
located
in
Sullivan
County
are
showing
8­
hour
design
values
of
0.086
parts
per
million
(
ppm)
which
would
be
classified
as
nonattainment.

Based
on
projections
to
2002
from
the
2000
census
data,
there
are
54,793
persons
living
in
Hawkins
County.
This
indicates
a
population
density
of
112.6
persons
per
square
mile.
The
population
of
Hawkins
County
is
approximately
61.4%
rural
with
the
remaining
38.6%
living
in
incorporated
areas.
The
largest
city
in
Hawkins
County
is
Church
Hill.
The
population
is
expected
to
increase
by
1.8%
between
2000
and
2010.
Based
on
the
2002
population
data
for
the
entire
JC­
K­
B
MSA,
Hawkins
County
represents
approximately
11%
of
the
total
JCK
B
MSA
population.

Point
source
NOX
emissions
from
Hawkins
County
were
estimated
at
36.8
ton/
day
in
1999
which
represents
approximately
39%
of
the
95.21
ton/
day
of
overall
NOX
point
source
emissions
from
the
JC­
K­
B
MSA.
VOC
emissions
were
estimated
at
12.8
ton/
day
in
1999
which
represents
approximately
9%
of
the
150.45
ton/
day
of
overall
VOC
point
source
emissions
from
the
JC­
K­
B
MSA.

For
NOX
and
VOC
control,
point
sources
located
within
Hawkins
County
are
subject
to
Prevention
of
Significant
Deterioration
(
PSD)
requirements,
Control
Technology
Guideline
Reasonable
Available
Control
Technology
(
CTG
RACT)
requirements,
Maximum
Achievable
Control
Technology
(
MACT)
requirements
for
Hazardous
Air
Pollutants
(
HAP),
and
New
Source
Performance
Standards
(
NSPS).

Mobile
source
NOX
emissions
from
Hawkins
County
were
estimated
at
5.76
ton/
day
in
1999
which
represents
approximately
8%
of
the
74.14
ton/
day
of
overall
NOX
mobile
source
emissions
from
the
JC­
K­
B
MSA.
VOC
emissions
were
estimated
at
3.8
ton/
day
in
1999
which
represents
approximately
10%
of
the
38.24
ton/
day
of
overall
VOC
mobile
source
emissions
from
the
JC­
K­
B
MSA.
Commuting
traffic
from
surrounding
counties
into
Hawkins
County
is
minimal.
Commuting
traffic
from
Hawkins
County
into
surrounding
counties
is
high.

The
emissions
data
presented
indicate
that
Hawkins
County
could
be
making
a
contribution
to
the
ozone
forming
emissions;
however,
the
electric
generating
facility
in
Hawkins
County
is
subject
to
the
NOX
SIP
call,
and
at
the
minimum
would
be
required
to
add
low
NOX
burner
controls
thereby
significantly
reducing
the
impact
to
the
JC­
K­
B
MSA
area.
Hawkins
County
also
only
represents
11%
of
the
total
JC­
K­
B
MSA
population
with
61.4
%
of
the
county
being
rural.
Taking
all
of
the
above
factors
into
consideration,
Hawkins
County
should
be
designated
attainment
for
the
8­
hour
ozone
standard.