Cost
Savings
Estimate
of
Adding
10
Aluminum
Alkyls
to
the
40
CFR
710.46(
B)(
2)
Chemical
Substance
List
The
Inventory
Update
Rule
(
IUR)
requires
manufacturers
of
certain
chemicals
to
report
every
four
years
information
concerning
the
manufacturing,
processing,
and
use
of
their
subject
chemical.
Chemicals
listed
at
40
CFR
710.46
(
b)(
2)
are
partially
exempt
from
this
reporting
requirement
and
do
not
report
the
processing
and
use
information
required
by
40
CFR
710.52(
c)(
4).
The
Environmental
Protection
Agency
is
adding
aluminum,
chlorodiethyl­
(
CASRN
96­
10­
6);
aluminum,
triethyl­
(
CASRN
97­
93­
8);
aluminum,
tris(
2­
methylpropyl)­
(
CASRN
100­
99­
2);
aluminum,
dichloroethyl­
(
CASRN
563­
43­
9);
aluminum,
trioctyl­
(
CASRN
1070­
00­
4);
aluminum,
tributyl­
(
CASRN
1116­
70­
7);
aluminum,
trihexyl­
(
CASRN
1116­
73­
0);
aluminum,
hydrobis(
2­
methylpropyl)­
(
CASRN
1191­
15­
7);
aluminum,
di­.
mu.­
chlorochlorotriethyldi­
(
CASRN
12075­
68­
2);
and
aluminum,
trichlorotrimethyldi­
(
CASRN
12542­
85­
7)
to
this
partial
exemption
through
a
direct
final
rulemaking
action.
The
addition
of
these
10
chemicals
results
in
a
cost
savings
of
$
135,776
to
$
146,546
in
the
first
cycle
and
$
108,621
to
$
117,237
in
future
cycles.
This
paper
provides
the
basis
for
this
conclusion.

Table
1:
Non­
CBI
Inventory
Update
Reporting
for
10
Aluminum
Alkyls
Reporting
Year
Number
of
Reports
Total
Production
Volume
2002
23
135
million
to
750
million
lbs.

1998
15
135
million
to
750
million
lbs.

The
non­
CBI
IUR
reporting
represents
only
a
portion
of
IUR
reporting.
Based
on
that,
EPA
assumes
25
reports
in
excess
of
300,000
pounds
would
be
received
for
these
10
chemicals.

Table
2:
Estimated
Savings
From
Adding
10
Aluminum
Alkyls
to
the
IUR
Partial
Exemption
First
Reporting
Period
Future
Reporting
Periods
Report
Type
Full
Partial
Difference
Full
Partial
Difference
Per
report
cost
estimate
High
$
7,228.00
$
1,366.70
$
5,861.84
$
5,919.40
1,229.93
$
4,689.47
Low
$
6,342.41
$
911.38
$
5,431.03
$
5,166,03
$
821.20
$
4,344.83
Number
of
reports
25
reports
with
production
volumes
of
300,000
lbs.
or
greater
Total
savings
estimate
High
$
146,546
$
117,237
Low
$
135,776
$
108,621
Note:
Figures
from
table
3­
13
in
the
Economic
Analysis
for
the
Amended
Inventory
Update
Final
Rule,
August
2002.
