Document ID: EPA-HQ-OW-2003-0074-0243
Agency: epa
Document Type: Supporting & Related Material
Title: 
Posted Date: 2003-12-24T05:00Z

UNITED
STATES
ENVIRONMENTAL
PROTECTION
AGENCY
WASHINGTON,
D.
C.
20460
OFFICE
OF
PREVENTION,
PESTICIDES
AND
TOXIC
SUBSTANCES
July
23,
2003
SUBJECT:
Technical
Release
of
EPA's
Risk­
Screening
Environmental
Indicators
(
RSEI)
­
Version
2.1
Dear
RSEI
User:

EPA
is
pleased
to
send
you
the
newest
version
of
the
Risk­
Screening
Environmental
Indicators
(
RSEI)
Version
2.1.
The
Office
of
Pollution
Prevention
and
Toxics
(
OPPT)
has
acted
upon
comments
received
from
the
first
and
second
beta
tests
of
the
revised
RSEI
Chronic
Human
Health
Model,
and
is
providing
RSEI
Version
2.1
to
you
as
part
of
its
technical
user
audience.
RSEI
Version
2.1
contains
the
13
years
of
Toxics
Release
Inventory
(
TRI)
reporting
data
from
1988
through
2000,
but
it
does
not
contain
the
2001
TRI
reporting
data.

RSEI
Version
2.1
contains
many
improvements
over
Version
1.02,
which
has
been
available
since
1999.
Attached
to
this
letter
are:
a
description
of
new
features
available
in
RSEI
Version
2.1
(
Attachment
1),
an
introduction
to
the
new
model
for
previous
users
that
discusses
operational
differences
between
Versions
1.02
and
2.1
(
Attachment
2),
and
instructions
for
installing
the
software
program
on
the
hard
drive
of
your
computer
(
Attachment
3).

RSEI
is
a
screening­
level
tool
for
evaluating
releases
of
toxic
chemicals
to
the
environment
and
their
potential
risk­
related
impact
on
chronic
human
health.
The
model
considers
the
pounds
of
chemicals
released,
their
relative
toxicity,
the
degree
to
which
people
are
potentially
exposed
to
these
chemicals,
and
the
estimated
size
of
the
exposed
general
population.
The
risk­
related
scores
that
it
calculates
can
serve
a
variety
of
comparative
purposes,
including
the
examination
of
trends
for
measuring
change,
the
ranking
and
prioritization
of
chemicals
and
industry
sectors
for
strategic
planning,
the
conduct
of
risk­
related
targeting,
the
support
of
community­
based
environmental
protection
projects,
and
the
investigation
of
environmental
justice
issues.

RSEI
Version
2.1
provides
a
risk­
related
perspective
for
air
and
water
releases
(
including
those
from
certain
off­
site
transfers),
as
well
as
providing
other
valuable
perspectives
for
all
release
pathways
and
other
waste
management
activities
at
industrial
facilities,
such
as
pounds
of
release
and
pounds
of
release
weighted
by
toxicity
(
for
a
hazard­
based
perspective).
Results
can
be
viewed
at
many
levels
of
aggregation,
including:
national,
EPA
Regional,
state,
county,
city
and
zip
code.
U.
S.
population
data
(
including
subpopulations
by
age
and
gender)
and
yearly
demographic
changes
in
population
density
are
reflected
in
the
model;
appropriate
exposure
factors
are
applied
to
relevant
subpopulations.
A
user­
friendly
Easy
RSEI
interface
allows
you
to
quickly
display
graphs
or
tables
of
information
related
to
many
of
your
questions,
and
the
RSEI
Welcome
Screen
provides
tutorials
to
teach
you
how
to
use
the
Advanced
RSEI
model
(
which
employs
GIS
mapping
of
facilities
and
releases).
Users
unfamiliar
with
this
updated
version
of
RSEI
are
strongly
encouraged
to
work
through
the
three
tutorials
(
these
are
also
found
in
the
User's
Manual).

If
you
have
any
problems
with
loading
the
model,
using
it
or
interpreting
RSEI
results,
please
contact
one
of
the
OPPT
RSEI
team
members
listed
below.
The
installation
CD­
ROM
includes
the
RSEI
2.1
model
with
the
Easy
RSEI
and
Advanced
RSEI
interfaces,
RSEI
data
bases,
the
User's
Manual,
and
other
supporting
information.
Help
screens
are
available
in
the
model
itself.
We
thank
you
for
your
previous
support
of
our
development
efforts
and
hope
you
find
the
revised
RSEI
model
meets
your
needs
and
expectations.

Sincerely,

OPPT's
RSEI
Project
Team
Attachments:

Attachment
1
­
New
Features
in
RSEI
Version
2.1
Attachment
2
­
A
Discussion
for
Previous
Users
of
Operational
Differences
Between
RSEI
Versions
1.02
and
2.1
Attachment
3
­
Installation
Instructions
for
RSEI
Version
2.1
CD­
ROM
RSEI
Version
2.1
CD­
ROM
Installation
Disk
(
under
separate
cover)
RSEI
Version
2.1
FACT
Sheet
(
under
separate
cover)

OPPT
RSEI
Project
Team
Gary
Cole,
Ph.
D.
Steven
M.
Hassur,
Ph.
D.
Richard
E.
Engler,
Ph.
D.
cole.
gary@
epa.
gov
hassur.
steven@
epa.
gov
engler.
richard@
epa.
gov
(
202)
564­
8811
(
202)
564­
8558
(
202)
564­
8587
Attachment
1
EPA's
Risk­
Screening
Environmental
Indicators
New
Features
in
RSEI
Version
2.1
New
or
improved
features
have
been
added
to
the
Risk­
Screening
Environmental
Indicators
(
RSEI)
Chronic
Human
Health
model
since
the
release
of
Version
1.02
in
1999.
These
improvements
have
been
based
upon
recommendations
from
users,
collaborators
and/
or
modeling
development
partners.
Some
of
the
major
changes
are
the
addition
of
a
user­
friendly
interface
for
the
model
called
"
Easy
RSEI,"
incorporation
of
additional
years
of
TRI
reporting
data
(
now
1988­
2000;
but
not
the
recently
released
2001
data),
modeling
of
the
water
medium
in
addition
to
the
air
medium,
correction
of
locational
data
for
on­
site
and
off­
site
facilities,
and
use
of
1990
and
2000
block­
level
population
data
from
the
U.
S.
Census.
The
following
listing
describes
these
and
other
features
in
greater
detail:

Operating
System
and
Display
°
32­
bit
operating
system
(
Windows
95/
98/
2000/
XP/
NT4)
[
RSEI
will
not
function
using
the
Windows
3.1
or
earlier
operating
systems.]
°
GIS
display
(
scalable
mapping
of
on­
and
off­
site
facilities,
major
roads,
significant
waterways,
tribal
lands,
etc.)
°
new
Easy
RSEI
interface
quickly
displays
graphs
and
tables
(
based
on
user
questions)
regarding
ranked
model
results
and
trends
for
on­
site
releases
at
several
geographic
scales
Exposure
Modeling
°
geographic
area
for
air
modeling
increased
from
10
km
(
in
Version
1.02)
to
50
km
in
each
cardinal
direction
of
the
compass
from
facilities
to
accommodate
the
tall
stacks
associated
with
certain
new
reporting
industries
(
modeled
releases
now
include
transfers
to
off­
site
incineration)
°
highly
detailed
air
modeling
of
center
grid
cell
°
facility­
and
SIC­
specific
stack
diameters
added
as
air
modeling
parameter
°
"
on­
the­
fly"
air
plume
modeling
(
facility/
chemical­
specific
air
concentrations
by
grid
cell,
as
well
as
aggregated,
risk­
related
results
by
grid
cell
for
small
geographic
areas
)
°
facility­
specific
data
used
for
electric
power
plants
(
coal
burning)
°
facility­
specific
air
modeling
parameters
for
~
15­
20%
of
facilities,
nationwide
°
geocoding
and
address
matching
(
coupled
with
QA/
QC
review)
for
all
on­
site
and
off­
site
facilities
to
provide
accurate
location
coordinates
(
lat/
long)
°
risk­
related
modeling
of
water
release
pathways
(
direct
surface
water
and
POTWs)
[
Stream
reach
information
used
by
RSEI
is
only
available
for
the
Continental
U.
S.
Therefore,
the
risk­
related
perspective
for
water
releases
is
not
available
for
Alaska,
Hawaii
and
U.
S.
Territories
(
pounds­
and
hazard­
based
perspectives
are
available).]
°
unique
database
of
recreational
&
subsistence
fish
ingestion
populations
by
stream
reach
(
based
on
county­
level
fishing
data)
developed
to
model
water
exposure
pathways
°
mapping
of
stream
path
(
up
to
200
km
downstream)
°
hand­
matching
of
important
Publicly
Owned
Treatment
Works
(
POTWs)
to
National
Pollutant
Discharge
Elimination
System
(
NPDES)
database
(
to
insure
correct
identification
of
stream
reach
for
water
releases)
°
use
of
harmonic
mean
stream
flows
(
Version
1.02
used
arithmetic
mean
stream
flows)
°
Maximum
Containment
Level
(
MCL)
constraint
applied
to
drinking
water
intakes
°
exposure
modeling
adjustment
factors
for
water
and
land
used
in
Version
1.02
have
been
removed
from
RSEI
Population
Information
°
Northern
Mariana
Islands
Protectorate
added
to
U.
S.
Trust
Territories
[
Risk­
related
perspective
is
not
available
for
American
Samoa,
Guam,
and
the
Northern
Mariana
Islands
Protectorate,
since
stream
reach
locations
and
weather
station
data
used
by
RSEI
are
not
available
(
release
information
for
facilities
­
six
are
currently
reporting
­
can
be
viewed
from
pounds­
based
and
hazard­
based
perspectives).]
°
tribal
lands
are
mapped
(
indexed
to
facilities
located
within
their
boundaries)
°
year­
by­
year,
block­
level
population
adjustments
for
population
using
linear
interpolation
of
1990
and
2000
U.
S.
Census
data
(
with
back
extrapolation
to
1988)
°
modeling
of
U.
S.
population
by
age
and
gender
(
block
and
block
group)
using
subpopulation­
specific
exposure
factors
°
mapping
of
subpopulations
within
50
km
of
facilities
°
risk­
related
results
for
total
population,
children
(
ages
<
10
and
10­
17),
men
or
women
of
reproductive
age
(
ages
18­
44)
and
the
elderly
(
ages

65)

Toxicity
Information
°
revised
toxicity
weighting
methodology,
incorporating
more
pathway­
specific
toxicity
data
°
hierarchy
of
toxicity
value
sources
modified
by
addition
of
ATSDR
and
Cal­
EPA
final
published
toxicity
data
°
toxicity
weights
updated
(
new
weights
for
some
metals,
several
chemical
categories,
and
certain
new
chemicals
for
2000
TRI
reporting)

Databases
°
physical/
chemical
properties
updated
°
air
hydrolysis
rates
added
to
fate
and
decay
data
°
many
new
databases
available
for
review
and
use
outside
the
model
[
User
Tag
Fields
cannot
be
created
within
the
model;
but
the
Chemical
Database
(
Chemical.
db
­
a
Paradox
file)
can
be
modified
directly
to
create
User
Tag
Fields.
These
can
be
used
like
other
Flag
Fields
for
selection
and
custom
table
generation.]

Data
Queries
°
greatly
improved
query
language
with
many
more
logic
operators
(
using
Boolean
logic)
°
extensive
filtering
of
cross
tab
data
for
complex
display
of
information
°
no
limits
on
number
of
parameters
or
variables
chosen
for
analysis
Miscellaneous
Features
°
Help
is
supported
in
the
model
(
including
three
graphical
tutorials
on
the
RSEI
Welcome
screen
and
in
the
User's
Manual,
to
train
new
users)
°
improved
export
of
model
results
and
data
displays
to
many
databases,
spreadsheets,
word
processors,
etc.
°
much
faster
run
times
for
queries
(
typically,
several
minutes
for
state
and
local
analyses,
or
simple
national
analyses)
°
thematic
mapping
summaries
for
states
&
counties
based
on
"
selected"
facilities
and
indicator
elements
°
summary
trends
for
total
RSEI
results
(
pounds
and
risk­
related
results)
based
on
"
selected"
facilities
and
indicator
elements
°
summary
results
(
pounds
and
risk­
related
results)
based
on
"
selected"
facilities
and
indicator
elements
­
displayed
by
year
for
individual
media,
and
as
a
chemical
ranking,
facility
ranking
or
county
ranking
Attachment
2
EPA's
Risk­
Screening
Environmental
Indicators
A
Discussion
for
Previous
Users
of
Operational
Differences
Between
RSEI
Versions
1.02
and
2.1
The
Risk­
Screening
Environmental
Indicators
(
RSEI)
Version
2.1
has
greatly
expanded
capabilities
compared
to
RSEI
Version
1.02
(
an
"
update"
of
the
original
release,
Version
1.0).
To
accommodate
these
many
new
features,
the
design
of
the
new
model
has
been
significantly
altered.
Although
the
operation
of
the
model
is,
in
many
respects,
quite
similar
to
Version
1.02,
there
are
a
number
of
changes
in
how
one
accomplishes
certain
tasks.
This
comparison
addresses
the
most
significant
differences
to
minimize
any
confusion
for
users
of
the
previous
version.

All
of
the
former
model
functionality
remains,
enhanced
in
many
ways.
(
The
new
model
has
two
interfaces
(
Easy
RSEI
and
Advanced
RSEI);
it
is
the
Advanced
RSEI
interface
that
is
comparable
to
the
older
model
and
discussed
in
this
attachment.)
New
capabilities
have
also
been
added.
Perhaps
the
most
noticeable
improvement
is
the
geographic
nature
of
this
multi­
media
model.
The
map
function
has
become
a
central
feature
of
RSEI.
You
can
locate
facilities
on
it,
graph
populations
and
air
concentrations,
map
surface
water
receiving
streams,
and
even
use
the
map
to
select
facilities
in
the
chosen
viewing
area.
Displayed
locations
of
state
and
county
boundaries,
and
major
water
bodies
and
interstate
highways
aid
in
orienting
the
map.

Another
obvious
change
is
in
generating
cross­
tab
tables.
In
Version
1.02,
you
used
the
New
Query
button
to
select
a
subset
of
releases,
and
also
to
select
the
row
and
column
variables
for
the
cross­
tab
table.
In
Version
2.1,
these
two
actions
are
completely
separated.
You
now
use
the
Select
button
to
choose
a
"
subset"
of
releases
­
this
is
now
referred
to
as
making
a
selection.
The
ability
to
select
releases
is
greatly
enhanced.
You
can
make
a
selection
using
any
choice
of
variables
in
the
model,
and
combine
different
criteria
using
Boolean­
logic
qualifiers.
Once
you
select
a
set
of
releases,
this
set
becomes
the
basis
for
all
of
the
functions
in
the
model.
The
"
Selected
Facilities
Browser"
(
analogous
to
Version
1.02'
s
"
Facility
Browser")
and
all
of
the
pre­
formatted
"
summary
tables"
and
"
thematic
maps"
show
only
the
releases
in
your
selection.

Once
you
have
made
a
selection,
you
can
then,
in
a
separate
step,
create
a
cross­
tab
table
using
the
Custom
Table
button.
The
set
of
releases
used
in
the
creation
of
this
table
is
the
one
that
you
selected
using
the
Select
button.
You
can
now
identify
an
unrestricted
number
of
variables
(
to
be
displayed
as
multiple
rows
and
columns),
and
you
can
still
graph
the
results
or
display
sorted
tables.
However,
you
can
now
substantially
modify
the
table
within
the
model,
expanding
and
collapsing
rows/
columns,
and
use
a
filter
to
display
only
specific
values
of
row/
column
variables.

There
are
several
advantages
to
separating
the
selection
process
from
the
creation
of
the
cross­
tab
table.
One
is
time.
Whereas
it
used
to
take
30­
60
minutes
to
subset
and
create
a
table,
it
can
take
as
little
as
a
few
minutes
now,
depending
on
how
big
your
selection
set
is
and
how
complicated
your
table
is.
Creating
several
tables
using
the
same
selection
of
releases,
also
saves
time.
Because
the
design
of
Version
2.1
is
different,
you
may
wonder
where
to
find
desired
functions.
To
assist
you,
we
have
provided
the
following
section,
which
compares
the
main
feature
buttons
of
Version
1.02
with
those
in
the
new
version.
Major
differences
between
how
the
functions
operate
are
also
described.

Version
1.02
Button
Location
of
Function
in
Version
2.1
Load
and
You
can
now
load
tables
using
the
Load
Table
button,
which
is
found
by
Load
from
CD
clicking
on
the
Custom
Tables
button.
Because
the
"
Selection"
that
the
loaded
table
is
based
on
may
be
different
than
that
currently
being
used
by
the
model,
the
table
name
appears
on
the
screen,
and
you
can
click
on
it
to
see
what
the
underlying
selection
was.
You
should
note,
however,
that
the
rest
of
the
model,
outside
of
the
Custom
Tables
functions,
will
continue
to
use
the
currently
selected
set
of
facilities,
rather
than
the
set
used
by
the
loaded
table.
If
you
have
any
doubt
as
to
what
set
the
rest
of
the
model
is
currently
using,
click
on
the
text
in
the
upper
right
corner
of
the
screen
(
the
display
of
the
number
of
selected
elements,
releases
and
facilities),
and
a
screen
will
appear
identifying
the
underlying
selection.
NOTE:
Many
pre­
run
queries
are
available
using
Easy
RSEI.

New
Query
This
function
is
split
between
the
Select
button
and
the
Custom
Tables
button.
What
was
previously
a
single
operation
for
performing
queries
is
now
a
two­
step
process.

Inspect
and
This
function
previously
found
in
the
Facilities
Browser
can
now
be
found
Links
under
the
Selected
Facilities
Browser
button.
In
the
list
at
the
top
of
the
screen,
you
will
find
all
of
the
facilities
in
your
selected
set
along
with
their
reported
release
information
(
releases
matching
the
selection
criteria
are
highlighted).
A
new
feature
links
the
selected
facilities
to
a
map
of
the
U.
S.,
so
you
can
click
on
any
facility
and
see
where
it
is
located
on
the
map.
You
can
also
toggle
between
viewing
selected
facilities
and
all
facilities.
The
functions
that
were
previously
located
under
the
Links
button
are
also
found
here.
Now
you
can
also
show
population
subgroups,
as
well
as
total
population,
around
facilities
or
for
any
local
area
on
the
map
(
by
grid
cell).
Similarly,
you
can
display
estimated
air
concentrations
for
a
specific
air
release
from
a
single
facility,
or
you
can
show
the
combination
of
all
air
releases
in
your
selection
set
for
local
areas
on
the
map.
You
are
also
able
to
map
surface
water
receiving
streams
for
the
reporting
facility
or
waste
receiving
facility.

Data
There
is
also
a
Data
button
in
Version
2.1.
However,
in
addition
to
showing
chemical,
census,
weather,
and
stream
data,
this
button
allows
you
to
view
supporting
information
for
all
of
the
databases
used
by
the
model.
Attachment
3
EPA's
Risk­
Screening
Environmental
Indicators
Installation
Instructions
for
RSEI
Version
2.1
CD­
ROM
System
Requirements
To
install
and
run
the
Risk­
Screening
Environmental
Indicators
(
RSEI)
Version
2.1
requires
approximately
2
gigabytes
of
free
hard
disk
space.
At
least
128
Mbytes
of
RAM
is
recommended.
Users
must
also
have
Internet
Explorer
Version
3.0
or
later
installed
on
their
computer
to
use
the
RSEI
Help
feature.
RSEI
Version
2.1
will
operate
on
Windows
95,
98,
2000,
XP
or
NT4.
It
will
not
work
on
earlier
operating
systems,
such
as
Windows
3.1.

Installing
RSEI
The
previous
version
of
the
RSEI
model
could
be
run
from
the
CD
without
an
installation
on
the
user's
hard
drive.
For
Version
2.1,
extensive
data
enhancements
have
increased
the
size
of
the
databases
so
it
is
no
longer
possible
to
run
it
from
a
CD.
Consequently,
all
users
must
perform
the
full
hard
drive
installation
It
is
important
to
remove
any
previous
versions
of
the
RSEI
model
from
your
hard
drive
before
you
install
this
version.
Instructions
for
uninstalling
the
program
are
provided
in
the
"
Uninstalling
RSEI"
section
below.

To
install
under
Windows
2000
or
Windows
XP,
you
must
have
administrator
privileges.
If
you
do
not
have
administrator
privileges,
contact
your
computer
support
personnel.

Steps
for
installing
RSEI
are
the
following:
1.
Close
all
Programs
and
log
out
from
any
Local
Area
Network
(
LAN).
Put
the
RSEI
Installation
Disk
in
the
CD­
ROM
drive.
2.
The
Installation
Disk
should
begin
the
installation
automatically.
If
it
does
not,
click
on
the
Start
button
at
the
bottom
left
of
your
screen
then
`
Run.'
In
the
space
after
`
Open:'
type
in
`
D:\
setup.
exe.'
Substitute
the
appropriate
letter
if
your
CD­
ROM
drive
is
labeled
other
than
`
D.'
Click
`
OK.'
3.
Follow
the
prompts
in
the
installation
process.
Depending
on
the
speed
of
your
computer,
installation
may
take
up
to
15
minutes.

Launching
RSEI
When
the
installation
is
complete,
the
install
wizard
will
ask
if
you
want
to
launch
the
program.
Click
`
Yes,'
and
the
RSEI
Welcome
Screen
will
appear.
Here,
to
enter
RSEI,
you
can
click
on
Easy
RSEI,
Advanced
RSEI
or
RSEI
Tutorial.
Easy
RSEI
is
a
simplified
mode
of
operation
that
provides
users
with
rankings
and
trend
analyses
at
the
level
of
the
whole
nation,
an
EPA
region,
or
a
single
state.
Easy
RSEI
is
a
quick
and
simple
way
to
access
some
of
the
most
commonly­
used
data
in
RSEI.
It
is
also
a
great
introduction
to
the
kinds
of
information
RSEI
can
provide.
After
the
first
launch,
you
can
access
Easy
RSEI
again
by
double
clicking
the
RSEI
icon
on
your
Windows
desktop
or
by
clicking
the
Start
button
at
the
bottom
left
corner
of
your
Windows
screen,
then
`
Programs,'
`
RSEI,'
then
`
RSEI.'
When
you
are
ready,
you
can
try
Advanced
RSEI.
A
good
introduction
to
the
many
functions
in
Advanced
RSEI
is
the
three
RSEI
Tutorials.
They
can
be
found
in
Chapter
3
of
the
User's
Manual,
or
by
clicking
on
the
RSEI
Tutorial
button
on
the
RSEI
Welcome
screen.
When
you
want
to
try
Advanced
RSEI
yourself,
click
on
the
Advanced
RSEI
button
on
the
RSEI
Welcome
screen.
The
model
will
then
display
`
Important
Characteristics
of
RSEI.'
Click
`
Continue,'
and
the
Advanced
RSEI
interface
will
open.
Advanced
RSEI
allows
users
broad
freedom
to
customize
their
use
of
RSEI
using
maps,
crosstab
tables,
sorted
tables,
filters,
and
graphs.
Users
can
look
at
national­
level
results
or
the
results
for
a
single
facility
or
chemical.
Extensive
help
is
available
by
clicking
the
Help
button
at
any
point
in
the
model,
or
in
Chapters
4
through
9
of
the
User's
Manual.
Once
you're
comfortable
with
Advanced
RSEI,
you
may
want
to
click
on
the
button
in
the
bottom
left
of
the
RSEI
Welcome
screen
that
says,
`
In
the
future,
start
RSEI
in
Advanced
Mode.'
Then,
whenever
you
start
RSEI,
Advanced
RSEI
will
automatically
open.
If
you
ever
want
to
go
back
to
Easy
RSEI
or
the
RSEI
Tutorial,
simply
click
on
the
Switch
to
Welcome
Screen
button
at
the
bottom
left
of
the
Welcome
to
Advanced
RSEI
screen.

Note
that
the
way
the
RSEI
model
appears
on
your
screen
will
depend
on
your
Windows
settings,
including
your
screen
resolution.
If
some
of
the
displays
appear
truncated,
click
on
the
following
string
of
commands:
Start

Settings

Control
Panel

Display

Settings.
On
the
right­
hand
side
of
the
`
Settings'
screen,
slide
the
lever
under
`
Display
area'
to
the
right
one
notch.

Uninstalling
RSEI
RSEI
comes
with
its
own
Uninstall
program
that
removes
the
entire
program,
ancillary
files
(*.
dll's),
and
accompanying
databases.
However,
it
will
not
remove
the
`
user'
directory
(
so
any
tables
you
have
created
will
be
saved
for
you
to
copy
elsewhere)
or
the
Borland
Database
Engine
with
its
associated
RSEI
settings.
You
can
delete
these
manually
if
desired.
You
do
not
need
the
CD­
ROM
to
do
this.
Click
on
Start

Programs

RSEI

Uninstall
RSEI
and
follow
the
prompts.
The
RSEI
model
can
also
be
uninstalled
using
the
Windows
function
under
`
Settings.'
You
may
need
to
manually
delete
the
C:\
Program
Files\
RSEI
folder
and
its
subdirectories.
Do
this
by
using
Windows
Explorer,
open
the
view
of
the
C:
drive
and
dragging
the
C:\
Program
Files\
RSEI
folder
into
the
Recycle
Bin.
The
disk
space
will
not
be
freed
up
until
you
empty
the
Recycle
Bin.