Date:
May
6,
2003
Subject:
Revised
MACT
Floor
and
Cost
Impacts
for
Continuous
Process
Vents
Miscellaneous
Organic
NESHAP
EPA
Project
No.
95/
08;
RTI
International
Project
No.
08550.001.011
From:
David
Randall
To:
MON
Project
file
I.
Introduction
Prior
to
proposal
of
subpart
FFFF,
the
MACT
floor
for
continuous
process
vents
at
existing
sources
was
determined
to
be
98
percent
control
for
vents
with
a
TRE
less
than
or
equal
to
2.6.1
One
commenter
on
the
proposed
subpart
FFFF
indicated
that
one
of
the
top­
performing
facilities
should
be
removed
from
the
analysis
because
the
listed
process
vent
never
existed.
2
This
memorandum
describes
the
procedures
used
to
reevaluate
the
TRE
threshold
and
the
effect
of
changing
the
MACT
floor
on
the
nationwide
impacts.

II.
MACT
Floor
Table
1
shows
the
TRE
thresholds
for
the
top­
performing
facilities.
The
incorrect
data
are
for
the
vent
that
results
in
the
threshold
value
for
the
Amoco
Petroleum
Additives
plant
(
now
BP
Chemicals),
which
has
the
second
highest
TRE
threshold.
Without
this
vent,
the
TRE
threshold
for
the
facility
drops
to
0.33,
which
means
it
is
no
longer
in
the
top
12
percent
of
facilities.
In
both
the
original
and
revised
analyses,
the
database
includes
44
facilities
for
which
TREs
were
calculated,
and
the
top
12
percent
consists
of
5
facilities.
Thus,
after
correcting
the
Amoco
data,
the
revised
TRE
cutoff
for
the
floor
is
1.9.

III.
Cost
Impacts
The
database
includes
13
vents
with
TREs
between
1.9
and
2.6,
12
of
which
are
not
currently
controlled
to
98
percent.
Excluding
these
vents
from
the
control
requirements
reduces
the
nationwide
annual
costs
by
about
$
5.0
million/
yr.
Since
the
database
is
assumed
to
represent
half
of
the
continuous
process
vents
nationwide,
the
change
in
TRE
reduces
the
overall
TAC
for
the
MACT
floor
by
about
$
10.0
million/
yr.
Similarly,
not
controlling
these
12
vents
results
in
emission
reductions
that
are
about
180
Mg/
yr
less
than
in
the
previous
analysis,
and
overall
emission
reductions
nationwide
are
about
360
Mg/
yr
less
than
for
the
previous
analysis.
We
also
2
Table
1.
TRE
Thresholds
for
Continuous
Process
Vents
Company
City
State
TRE
thresholds
Previous
analysis
Current
analysis
Mobil
Chemical
Beaumont
TX
5.05
5.05
Amoco
Petroleum
Additives
Wood
River
IL
4.16
Hoechst
Celanese
Chemical
Group
Bay
City
TX
1.79
1.79
Dow
Plaquemine
LA
1.42
1.42
CF
Industries
Donaldsonville
LA
0.70
0.70
E.
I.
DuPont
Pasadena
TX
0.62
Average
TRE
for
top
5
sources
2.62
1.91
identified
errors
in
the
calculations
for
four
vents
at
plants
M277
and
M314
that
reduce
the
TAC
by
another
$
250,000/
yr
($
500,000
nationwide)
but
increase
the
emission
reductions
by
about
20
Mg/
yr
(
40
Mg/
yr
nationwide).
The
regulatory
alternative
is
unchanged
from
the
previous
analysis
(
i.
e.,
98
percent
control
for
vents
with
a
TRE
less
than
or
equal
to
5.0).
Thus,
the
costs
and
emission
reductions
are
the
same
as
for
the
previous
analysis,
except
for
the
same
corrections
as
noted
for
three
vents
in
the
floor
analysis.
Table
2
summarizes
the
costs
and
emission
reductions
for
the
MACT
floor
and
the
regulatory
alternative.
Attachment
1
presents
detailed
data
for
affected
vents
under
the
revised
MACT
floor,
and
Attachment
2
presents
detailed
data
for
the
additional
affected
vents
under
the
regulatory
alternative.

Table
2.
Impacts
of
Regulatory
Alternatives
for
Existing
Sources
Regulatory
alternative
TCI,
$
TAC,
$/
yr
Emission
reduction,
Mg/
yr
Cost
effectiveness,
$/
Mg
Relative
to
baseline
Incremental
Previous
analysis
MACT
floor
29,200,000
30,700,000
3,310
9,300
N/
A
Current
analysis
MACT
floor
22,600,000
20,400,000
2,970
6,870
N/
A
Regulatory
alternative
33,240,000
32,700,000
3,400
9,620
28,700
3
The
incremental
cost
per
Mg
of
HAP
reduced
of
the
regulatory
alternative
relative
to
the
floor
and
to
baseline
are
both
unreasonable.
Therefore,
we
recommend
setting
the
standard
for
continuous
process
vents
at
the
revised
MACT
floor.

IV.
References
1.
Memorandum
from
J.
Fields,
B.
Shine,
and
D.
Randall,
MRI,
to
MON
Project
File.
June
2,
2000.
Determination
of
TRE,
MACT
floor,
and
control
costs
for
continuous
process
vents
at
chemical
manufacturing
facilities.

2.
Letter
from
W.
Gerwing,
BP
Chemicals,
to
EPA's
Air
and
Radiation
Docket
and
Information
Center.
June
27,
2002.
Comments
on
the
proposed
NESHAP
for
miscellaneous
organic
chemical
manufacturing.
A­
1
ATTACHMENT
1
Detailed
Data
for
Affected
Vents
Under
the
Revised
MACT
Floor
A­
2
Count
Master
Facility
ID
Flow
(
scfm)
HAP
Uncontrolled
Emissions
(
lb/
yr)
Baseline
HAP
Emissions
(
lb/
yr)
HAP
Reduction
(
lb/
yr)
Electricity
(
kwh/
yr)
Natural
gas
(
mmscfy)
Steam
(
lb/
yr)
TCC
TAC
CE
($/
ton)
Control
Technology
1
M107
0.03
2,600,000
26,000
0
0
0
0
0
0
NA
None
2
M117
0.029
13,154
13,154
12,891
1.0
0
1,584
29,104
50,134
7,778
Flare
3
M117
0.029
7,150
1,430
1,287
1.0
0
1,584
29,065
50,128
77,899
Flare
4
M117
0.469
38,329,000
153,316
0
0
0
0
0
0
NA
None
5
M126
0.085
11,283
11,283
11,057
2.0
0
4,598
29,062
50,146
9,070
Flare
6
M126
6,450
83,246
83,246
81,581
767,683
43
0
491,846
322,088
7,896
Inc.
70%

7
M126
6,450
68,909
68,909
67,531
767,747
43
0
491,855
323,035
9,567
Inc.
70%

8
M126
6,450
60,260
60,260
59,055
767,785
43
0
491,861
323,601
10,959
Inc.
70%

9
M146
6,450
306,000
31
0
0
0
0
0
0
NA
None
10
M255
6,160
57,300
57,300
56,154
732,839
39
0
486,589
308,050
10,972
Inc.
70%

11
M256
6,450
54,880
54,880
53,782
767,401
42
0
491,804
317,893
11,821
Inc.
70%

12
M258
496
3,288,000
32,880
0
0
0
0
0
0
NA
None
13
M258
496
1,188,000
11,880
0
0
0
0
0
0
NA
None
14
M258
1,000
292,000
2,920
0
0
0
0
0
0
NA
None
15
M259
6,450
840,000
8,400
0
0
0
0
0
0
NA
None
16
M259
4,251
270,820
2,708
0
0
0
0
0
0
NA
None
17
M260
6,450
163,194
163,194
159,930
766,117
36
0
491,613
298,843
3,737
Inc.
70%

18
M262
0.1
60,000
180
0
0
0
0
0
0
NA
None
19
M262
0.1
1,313,333
3,940
0
0
0
0
0
0
NA
None
20
M262
0.1
11,980,000
35,940
0
0
0
0
0
0
NA
None
21
M269
193,352
1,999,992
8,000
0
0
0
0
0
0
NA
None
22
M269
193,352
1,999,992
8,000
0
0
0
0
0
0
NA
None
23
M271
0.050
2,000
2
0
0
0
0
0
0
NA
None
24
M271
0.050
1,020,000
1,020
0
0
0
0
0
0
NA
None
25
M271
0.050
2,000,000
2,000
0
0
0
0
0
0
NA
None
26
M271
0.050
12,620,000
12,620
0
0
0
0
0
0
NA
None
27
M271
0.050
5,600,000
5,600
0
0
0
0
0
0
NA
None
28
M271
0.050
16,200,000
16,200
0
0
0
0
0
0
NA
None
29
M271
0.050
6,200,000
6,200
0
0
0
0
0
0
NA
None
30
M271
0.050
2,000,000
2,000
0
0
0
0
0
0
NA
None
31
M271
0.050
7,600,000
7,600
0
0
0
0
0
0
NA
None
Count
Master
Facility
ID
Flow
(
scfm)
HAP
Uncontrolled
Emissions
(
lb/
yr)
Baseline
HAP
Emissions
(
lb/
yr)
HAP
Reduction
(
lb/
yr)
Electricity
(
kwh/
yr)
Natural
gas
(
mmscfy)
Steam
(
lb/
yr)
TCC
TAC
CE
($/
ton)
Control
Technology
A­
3
32
M271
203.2
2,200,000
2,200
0
0
0
0
0
0
NA
None
33
M271
203.2
620,000
620
0
0
0
0
0
0
NA
None
34
M271
281.93
97,700
1,954
0
0
0
0
0
0
NA
None
35
M271
6,450
160,000
160
0
0
0
0
0
0
NA
None
36
M277
3.721
316,200
3,162
0
0
0
0
0
0
NA
None
37
M277
6,450
66,000
660
0
0
0
0
0
0
NA
None
38
M277
114.3
19,157
19,157
18,774
4,387
31
6,716,333
48,803
195,475
20,824
Flare
39
M277
2,985
40,800
40,800
39,984
355,299
20
0
412,085
210,382
10,523
Inc.
70%

40
M279
6,450
1,514,040
15,140
0
0
0
0
0
0
NA
None
41
M279
6,450
157,180
1,572
0
0
0
0
0
0
NA
None
42
M279
51.06
33,091
33,091
32,429
1,920
13
2,980,480
47,569
113,863
7,022
Flare
43
M279
50.46
18,779
18,779
18,403
1,913
13
2,951,172
47,556
114,253
12,416
Flare
44
M279
6450
53,500
535
0
0
0
0
0
0
NA
None
45
M280
0.05
298
298
292
2.0
0
2,887
29,022
50,165
343,549
Flare
46
M280
0.54
146,670
2,933
0
0
0
0
0
0
NA
None
47
M280
42,462
483,350
9,667
0
0
0
0
0
0
NA
None
48
M281
323.1
13,142
13,142
12,879
400
3
621,749
68,798
24,522
3,808
Flare
49
M281
8,969
591,320
591,320
579,494
1,061,229
44
0
530,572
350,010
1,208
Inc.
70%

50
M281
0.3
26,000
260
0
0
0
0
0
0
NA
None
51
M283
1.97
196,210
3,924
0
0
0
0
0
0
NA
None
52
M283
0.13
2,150,000
21,500
0
0
0
0
0
0
NA
None
53
M285
472.5
144,867
30,422
27,525
11,965
6
0
141,297
102,851
7,473
Incinerator
54
M285
779.2
56,433
56,433
55,304
92,541
4
0
304,834
127,043
4,594
Inc.
70%

55
M285
472.5
31,782
31,782
31,146
12,071
8
0
141,513
110,272
7,081
Incinerator
56
M285
472.5
31,782
31,782
31,146
12,071
8
0
141,513
110,272
7,081
Incinerator
57
M285
472.5
31,782
31,782
31,146
12,071
8
0
141,513
110,272
7,081
Incinerator
58
M287
6,450
292,115
292,115
286,273
764,589
29
0
491,386
276,168
1,929
Inc.
70%

59
M293
0.07
2,927
2,927
2,869
2.0
0
3,779
29,036
50,137
34,953
Flare
60
M293
0.3
100,680
1,007
0
0
0
0
0
0
NA
None
61
M297
6,450
52,000
5
0
0
0
0
0
0
NA
None
62
M299
6,450
530,034
10,634
33
761,769
16
0
490,966
234,322
14,064,946
Inc.
70%
Count
Master
Facility
ID
Flow
(
scfm)
HAP
Uncontrolled
Emissions
(
lb/
yr)
Baseline
HAP
Emissions
(
lb/
yr)
HAP
Reduction
(
lb/
yr)
Electricity
(
kwh/
yr)
Natural
gas
(
mmscfy)
Steam
(
lb/
yr)
TCC
TAC
CE
($/
ton)
Control
Technology
A­
4
63
M299
6,450
245,200
12,260
7,356
764,950
31
0
491,440
281,533
76,545
Inc.
70%

64
M300
0.15
25,300
506
0
0
0
0
0
0
NA
None
65
M300
0.06
355,300
7,106
0
0
0
0
0
0
NA
None
66
M300
0.024
7,120
71
0
0
0
0
0
0
NA
None
67
M300
0.024
7,120
71
0
0
0
0
0
0
NA
None
68
M301
275.4
81,760
8,176
6,541
10,510
73
16,132,375
67,720
395,435
120,913
Flare
69
M301
275.4
81,760
8,176
6,541
10,510
73
16,132,375
67,720
395,435
120,913
Flare
70
M301
275.4
42,300
4,230
3,384
10,534
74
16,141,105
67,755
397,169
234,733
Flare
71
M301
275.4
39,000
3,900
3,120
10,536
74
16,141,835
67,758
397,314
254,688
Flare
72
M301
275.4
28,600
2,860
2,288
10,543
74
16,144,136
67,767
397,771
347,702
Flare
73
M301
275.4
26,400
2,640
2,112
10,544
74
16,144,623
67,769
397,868
376,769
Flare
74
M303
6,450
474,007
474
0
0
0
0
0
0
NA
None
75
M303
6,450
189,003
189
0
0
0
0
0
0
NA
None
76
M303
6,450
87,800
87,800
86,044
767,011
40
0
491,746
312,103
7,254
Inc.
70%

77
M303
6,450
54,831
54,831
53,734
767,401
42
0
491,804
317,902
11,832
Inc.
70%

78
M306
60
726,000
14,520
0
0
0
0
0
0
NA
None
79
M306
5.113
62,360
62,360
61,113
155
1
267,450
29,289
50,670
1,658
Flare
80
M306
6,450
130,000
2,600
0
0
0
0
0
0
NA
None
81
M306
5.113
14,060
14,060
13,779
100
1
159,340
29,280
32,043
4,651
Flare
82
M307
6,450
1,180,300
23,606
0
0
0
0
0
0
NA
None
83
M307
6,450
204,988
16,399
12,299
767,149
40
0
491,766
314,156
51,085
Inc.
70%

84
M311
0.01
32,900
658
0
0
0
0
0
0
NA
None
85
M311
0.18
3,700
74
0
0
0
0
0
0
NA
None
86
M314
968.2
256,620
7,909
2,777
24,350
8
0
160,372
114,708
82,621
Incinerator
87
M314
9,782
472,577
10,307
855
1,161,236
51
0
541,474
380,689
890,541
Inc.
70%

88
M315
2.326
29,184,000
145,920
0
0
0
0
0
0
NA
None
89
M320
0.7
214,000
3,210
0
0
0
0
0
0
NA
None
90
M320
0.67
372,000
5,580
0
0
0
0
0
0
NA
None
91
M320
1.23
335,867
5,038
0
0
0
0
0
0
NA
None
92
M320
2,277
840,000
12,600
0
0
0
0
0
0
NA
None
93
M322
6,450
1,066,000
10,660
0
0
0
0
0
0
NA
None
Count
Master
Facility
ID
Flow
(
scfm)
HAP
Uncontrolled
Emissions
(
lb/
yr)
Baseline
HAP
Emissions
(
lb/
yr)
HAP
Reduction
(
lb/
yr)
Electricity
(
kwh/
yr)
Natural
gas
(
mmscfy)
Steam
(
lb/
yr)
TCC
TAC
CE
($/
ton)
Control
Technology
A­
5
94
M325
1,659
274,000
274,000
268,520
195,797
6
0
360,334
146,981
1,095
Inc.
70%

95
M325
1,659
104,600
104,600
102,508
196,544
9
0
360,642
158,099
3,085
Inc.
70%

96
M328
6,450
742,000
742,000
727,160
764,733
30
0
491,408
278,313
765
Inc.
70%

97
M330
0.027
9,000
9,000
8,820
0
0
1,448
29,085
50,130
11,367
Flare
98
M330
0.027
9,000
9,000
8,820
0
0
1,448
29,085
50,130
11,367
Flare
99
M330
0.027
9,000
9,000
8,820
0
0
1,448
29,085
50,130
11,367
Flare
100
M330
0.111
30,620
30,620
30,008
3.0
0
5,882
29,109
49,280
3,285
Flare
101
M337
0.72
799,600
7,996
0
0
0
0
0
0
NA
None
102
M343
0.028
10,000
10,000
9,800
1.0
0
1,540
29,049
50,251
10,255
Flare
103
M343
0.278
9,000,000
900
0
0
0
0
0
0
NA
None
104
M343
0.278
1,400,000
140
0
0
0
0
0
0
NA
None
105
M343
0.484
200,000
20
0
0
0
0
0
0
NA
None
106
M347
6,450
77,915
77,915
76,357
767,128
40
0
491,763
313,842
8,220
Inc.
70%

107
M350
2,423
495,200
9,904
0
0
0
0
0
0
NA
None
108
M351
0.022
11,857
166
0
0
0
0
0
0
NA
None
109
M351
18.19
149,900
29,980
26,982
641
4
1,048,550
34,850
69,691
5,166
Flare
110
M351
57.89
86,300
17,260
15,534
2,192
15
3,391,807
47,917
122,997
15,836
Flare
111
M351
14.34
76,720
15,344
13,810
506
3
827,223
34,767
65,822
9,533
Flare
112
M351
8.469
26,555
5,311
4,780
315
2
494,243
29,508
60,156
25,170
Flare
113
M358
210.2
1,184,680
59,234
35,540
7,616
47
12,191,823
65,863
285,556
16,069
Flare
114
M359
1.2
84,550
1,691
0
0
0
0
0
0
NA
None
115
M44
0.01
41,000
820
0
0
0
0
0
0
NA
None
116
M44
1.098
89,000
8,900
7,120
28
0
59,285
29,314
50,513
14,189
Flare
cont(
lb/
yr)
180,158,722
4,083,449
3,277,487
11,324,701
10,210,612
6,231
cont(
tpy)
90,079
2,041
1,638
cont(
Mg/
yr)
81,719
1,852
1,486
allcont(
tpy)
180,158
4,083
3,277
22,649,402
20,421,224
6,231
A­
6
ATTACHMENT
2
Detailed
Data
for
the
Additional
Affected
Vents
under
the
Regulatory
Alternative
A­
7
Count
Master
Facility
ID
Flow
(
scfm)
HAP
Uncontrolled
Emissions
(
lb/
yr)
Baseline
HAP
Emissions
(
lb/
yr)
HAP
Reduction
(
lb/
yr)
TRE
Elec.

(
kwh/
yr)
Nat.

gas
(
mm
scfy)
Steam
(
tpy)
TCC
TAC
CE,
$/
ton
Control
Technology
1
M325
0.439
8,280
8,280
8,114
1.91
13
0
12.3
29,075
50,423
12,428
Flare
2
M107
4.404
16,000
16,000
15,680
1.95
158
1
127
29,306
54,888
7,001
Flare
3
M307
6,450
45,720
4,572
3,658
2.03
767,850
44
0
491,870
324,556
177,469
Inc.
70%

4
M314
171,186
559,009
559
0
2.12
0
0
0
0
0
NA
None
5
M277
1,990
29,600
7,400
6,808
2.13
236,858
13
0
375,883
175,879
51,668
Inc.
70%

6
M301
275.4
17,720
1,772
1,418
2.15
10,549
74
8,073
67,777
398,249
561,864
Flare
7
M280
165,872
1,654,000
165
0
2.20
0
0
0
0
0
NA
None
8
M44
1.558
16,140
16,140
15,817
2.20
42
0
42.4
29,142
50,788
6,422
Flare
9
M23
35.31
13,226
13,226
12,961
2.29
1,353
9
1,037
35,233
94,926
14,647
Flare
10
M269
25,859
93,200
93,200
91,336
2.37
3,078,169
173
0
680,816
917,527
20,091
Inc.
70%

11
M269
25,859
92,200
92,200
90,356
2.39
3,078,181
173
0
680,817
917,702
20,313
Inc.
70%

12
M258
4.147
12,440
12,440
12,191
2.48
154
1
120.7
29,312
54,955
9,016
Flare
13
M269
22,116
77,600
77,600
76,048
2.52
2,632,654
148
0
656,121
805,095
21,173
Inc.
70%

14
M269
22,116
77,200
77,200
75,656
2.53
2,632,659
148
0
656,122
805,165
21,285
Inc.
70%

15
M347
6,450
30,967
30,967
30,348
2.97
767,684
43
0
491,846
322,099
21,227
Inc.
70%

16
M314
1,640
18,020
901
541
3.34
195,102
10
0
359,824
161,144
596,167
Inc.
70%

17
M44
5.676
7,880
79
0
3.79
0
0
0
0
0
NA
None
18
M126
89.40
8,400
8,400
8,232
3.79
3,424
24
2,620
48,726
164,155
39,882
Flare
19
M343
188.9
9,200
9,200
9,016
3.84
7,257
51
5,551
65,032
291,284
64,615
Flare
20
M259
1,100
13,540
135
0
4.16
0
0
0
0
0
NA
None
21
M299
6,450
21,800
872
436
4.19
767,791
43
0
491,862
323,690
1,484,817
Inc.
70%

22
M343
0.128
6,560
6,560
6,429
4.47
3
0
3.5
29,038
50,282
15,643
Flare
23
M279
105.3
7,057
7,057
6,916
4.59
4,035
28
3,087
48,717
184,034
53,219
Flare
Totals
2,835,759
484,926
471,961
5,296,519
6,146,841
26,048
Nationwide
totals
5,671,517
969,852
943,921
10,593,038
12,293,682
26,048
