Document ID: EPA-HQ-OAR-2002-0076-0412
Agency: epa
Document Type: Supporting & Related Material
Title: 
Posted Date: 2005-06-13T04:00Z

Bill
Wehrum/
DC/
USEPA/
US
05/
25/
2005
03:
11
PM
To
afraas@
omb.
eop.
gov,
aflynn@
omb.
eop.
gov
cc
Lydia
Wegman/
RTP/
USEPA/
US@
EPA,
Kathy
Kaufman/
RTP/
USEPA/
US@
EPA
Subject
Fw:
CAIR
Better
than
BART
Write
Up
Art
and
Amy
­­
Here's
our
explanation
of
why
we
think
the
new
IPM
runs
support
the
conclusion
that
CAIR
is
better
than
BART.
Note
that
this
write
up
focuses
only
on
the
technical
question
of
whether
we
can
rely
on
the
existing
air
quality
runs
in
light
of
the
new
IPM
runs
that
more
accurately
reflect
the
final
CAIR
rule
and
what
we
expect
from
the
final
BART
rule.
We
think
the
answer
is
yes,
the
new
IPM
runs
in
conjunction
with
the
existing
air
quality
runs
provide
a
solid
basis
for
concluding
that
CAIR
is
better
than
BART.

­­­­­
Forwarded
by
Bill
Wehrum/
DC/
USEPA/
US
on
05/
25/
2005
03:
04
PM
­­­­­

Bill
Grantham/
RTP/
USEPA/
US
05/
24/
2005
05:
38
PM
To
Jeff
Holmstead/
DC/
USEPA/
US@
EPA
cc
Bill
Wehrum/
DC/
USEPA/
US@
EPA,
Lydia
Wegman/
RTP/
USEPA/
US@
EPA,
Peter
Tsirigotis/
RTP/
USEPA/
US@
EPA,
Brian
Timin/
RTP/
USEPA/
US@
EPA,
Joe
Paisie/
RTP/
USEPA/
US@
EPA,
Lea
Anderson/
DC/
USEPA/
US@
EPA,
Chet
Thompson/
DC/
USEPA/
US@
EPA,
Kathy
Kaufman/
RTP/
USEPA/
US@
EPA,
Steve
Page/
RTP/
USEPA/
US@
EPA
Subject
CAIR
Better
than
BART
Write
Up
Jeff,

As
requested
on
yesterday's
call,
here
is
a
write­
up
summarizing
the
results
of
the
new
CAIR
better
than
BART
analysis,
which
Brian
Timin
and
I
put
together,
for
purposes
of
informing
the
interagency
review.
The
spreadsheet
referred
to
within
will
be
forwarded
tomorrow
(
it
is
done
but
needs
some
formatting).