"
Langworthy,
Cindy"
<
clangworthy@
hunton.
com>

04/
28/
2006
06:
46
PM
T
o
Erika
Sasser/
RTP/
USEPA/
US@
EPA
c
c
S
u
b
j
e
c
t
Corrected
Comments
of
the
Utility
Air
Regulatory
Group
on
National
Ambient
Air
Quality
Standards
for
Particulate
Matter,
Docket
EPA­
HQ­
OAR­
2001­
0017
Attached
please
find
a
corrected
copy
of
Comments
of
the
Utility
Air
Regulatory
Group
on
National
Ambient
Air
Quality
Standards
for
Particulate
Matter;
Proposed
Rule,
and
Revisions
to
Ambient
Air
Monitoring
Requirements.
As
indicated
on
the
cover
of
this
document,
these
comments
were
originally
filed
on
April
17,
2006.
Subsequently,
however,
we
identified
a
few
typographical
errors
in
UARG's
comments
and
some
more
substantive
errors
in
section
4
of
Attachment
2
to
the
comments,
Technical
Comments
on
the
Proposed
Rule
for
National
Ambient
Air
Quality
Standards
for
Particulate
Matter
by
Dr.
Anne
Smith.
The
errors
in
Attachment
2
are
specifically
identified
at
the
front
of
Dr.
Smith's
corrected
comments,
which
are
included
in
this
version
of
the
document.
This
version
also
conforms
UARG's
comments
to
the
revised
Smith
report
and
corrects
the
typographical
errors
that
we
identified
in
the
UARG
comments.
Please
call
me
if
you
have
any
questions
concerning
these
corrected
comments.

Lucinda
Minton
Langworthy
Hunton
&
Williams
LLP
Phone
(
202)
955­
1525
Fax
(
202)
828­
3783
