Questions
for
the
Bureau
of
Land
Management
on
Chlorsulfuron
Use
from
EPA's
Office
of
Pesticide
Programs
Special
Review
and
Reregistration
Division
(
3508C)
July
24,
2003
1.
How
will
chlorsulfuron
be
used
on
rangeland?
What
formulations,
rates,
and
application
methods
are
used?
2.
How
much
chlorsulfuron
is
currently
applied?
How
much
will
be
applied
to
pastures
and
rangelands
(
in
terms
of
pounds
active
ingredient
per
year)?
3.
Why
would
chlorsulfuron
be
used
on
rangelands
on
public
lands?
How
important
will
the
rangeland
use
be
to
BLM?
4.
How
is
chlorsulfuron
currently
used
on
BLM
land?
5.
What
alternatives
are
currently
used?
What
control
does
chlorsulfuron
provide
that
the
alternatives
do
not?
6.
How
long
has/
will
it
be/
been
used?
How
often
has
it
been/
will
it
be
used?
How
large
of
an
area
will
be
treated
at
one
time?
What
type
of
treatment
and
application
method
is
used?
What
application
rates
are
used?
7.
Where
will
this
chemical
be
used?
What
is
the
topography
of
the
treated
area?
8.
How
is
spray
drift
limited?
What
precautions
does
BLM
take
to
prevent
off­
site
damage
to
non­
target
organisms?
9.
What
procedures
are
used
to
avoid
impacts
on
threatened
and
endangered
plants,
host
plants
for
threatened
and
endangered
insects,
and
cover
plants
for
threatened
and
endangered
mammals?
10.
What
are
BLM's
risk
concerns
for
chlorsulfuron?
Has
BLM
considered
endangered
species
concerns
for
chlorsulfuron?
11.
How
does
BLM
comply
with
the
endangered
species
act?
What
specific
actions
have
been
taken
to
implement
the
endangered
species
act?
12.
What
is
the
timeframe
for
the
completion
of
the
programmatic
EIS
that
is
now
underway?
What
are
the
major
milestones
for
this
EIS?
Will
EPA's
ecological
risk
assessment
for
chlorsulfuron
be
considered
in
this
decision?
13.
Is
the
NEPA
decision
for
the
current
use
of
chlorsulfuron
on
BLM
land
available?
