Document ID: EPA-HQ-OAR-2002-0076-0418
Agency: epa
Document Type: Supporting & Related Material
Title: 
Posted Date: 2005-06-14T04:00Z

Mark
Evangelista/
RTP/
USEPA/
US
06/
03/
2005
02:
50
PM
T
o
afraas@
omb.
eop.
gov,
aflynn@
omb.
eop.
gov,
Jeff
Holmstead/
DC/
USEPA/
US@
EPA,
Bill
Wehrum/
DC/
USEPA/
US@
EPA,
Steve
Page/
RTP/
USEPA/
US@
EPA,
Peter
Tsirigotis/
RTP/
USEPA/
US@
EPA,
Lydia
Wegman/
RTP/
USEPA/
US@
EPA,
Tyler
Fox/
RTP/
USEPA/
US@
EPA,
Joe
Paisie/
RTP/
USEPA/
US@
EPA,
Desmond
Bailey/
RTP/
USEPA/
US@
EPA,
Brian
Orndorff/
RTP/
USEPA/
US@
EPA,
Kathy
Kaufman/
RTP/
USEPA/
US@
EPA,
Todd
Hawes/
RTP/
USEPA/
US@
EPA,
Lea
Anderson/
DC/
USEPA/
US@
EPA,
Brian
Timin/
RTP/
USEPA/
US@
EPA,
Warren
Peters/
RTP/
USEPA/
US@
EPA,
Eric
Ginsburg/
RTP/
USEPA/
US@
EPA
c
c
S
u
b
j
e
c
t
Corrections
to
CALPUFF
Runs
for
BART
Yesterday
we
discovered
an
error
in
calculating
the
emission
rates
for
NOX
and
PM
for
Runs
1,3,4,5,6.
This
spreadsheet
contains
the
complete
23
runs,
with
the
corrected
runs
in
place.

This
table
summarizes
the
corrections
made
to
the
emission
rate
inputs:
Erroneous
Corrected
Run
SO2
NOx
PM
SO2
NOx
PM
1
10,000
3,570
50
10,000
3,500
50
3
5,000
1,785
25
5,000
3,500
50
4
5,000
3,125
25
5,000
6,250
50
5
1,000
357
5
1,000
3,500
50
6
1,000
625
5
1,000
6,250
50
These
tables
summarize
the
differences
that
result
from
the
corrected
emission
inputs:

Days
Above
ddv
Threshold:
5­
yr.
Average
ddv
(
km)
Run
1
Run
3
Run
4
R
Threshold
Distance
Error
Correct
Error
Correct
Error
Correct
Erro
0.1
50
116
116
83
95
189
214
14
0.1
100
97
98
61
74
168
191
0.1
200
72
72
43
50
78
101
0.5
50
36
29
13
18
36
62
0.5
100
24
23
9
11
25
56
0.5
200
13
13
5
7
7
15
1.0
50
12
12
3
5
12
25
1.0
100
8
8
2
3
5
14
1.0
200
4
4
1
1
2
4
Ten
Highest
ddv
Values
for
200
km
(
5­
yr.
Average)
1
2
3
4
5
6
7
8
Run
1
Error
2.17
1.39
1.29
1.11
0.98
0.93
0.79
0.74
Correct
2.16
1.39
1.28
1.10
0.98
0.93
0.79
0.73
Run
3
Error
1.14
0.72
0.66
0.57
0.50
0.47
0.40
0.37
Correct
1.31
0.85
0.76
0.65
0.58
0.54
0.49
0.45
Run
4
Error
1.47
1.09
0.82
0.67
0.59
0.54
0.50
0.46
Correct
2.19
1.67
1.29
1.03
0.93
0.82
0.74
0.70
Run
5
Error
0.24
0.15
0.14
0.12
0.10
0.10
0.08
0.08
Correct
0.66
0.49
0.40
0.34
0.28
0.25
0.24
0.22
Run
6
Error
0.30
0.22
0.16
0.13
0.12
0.11
0.10
0.09
Correct
1.73
1.31
1.03
0.85
0.73
0.64
0.57
0.54
Results
of
the
corrected
runs
do
appear
more
consistent
with
their
input
scenarios
than
do
the
previous
set
of
results.
These
results
remove
the
confusion
we
all
experienced
about
having
such
low
impacts
from
sources
with
high
NOx
emissions.

We
certainly
regret
the
confusion
caused
by
the
incorrect
results,
and
apologize
for
the
inaccuracies.