2.
Response
to
Comments
2.9
Individual
Responses
to
Comments
from
Organizations
The
transport
of
soil
from
the
eastern
Baylands
site
area
would
employ
loaders,
bulldozers,
and
trucks.
This
activity
would
be
akin
to
that
occurring
during
grading
of
a
development
site.
Truck
trips
would
incrementally
add
to
the
roadway
noise
levels
along
Tunnel
Avenue,
the
Beatty
Avenue/Geneva
Avenue
extension,
Lagoon
Road
and
potentially
Bayshore
Boulevard,
depending
on
deposition
location.
These
activities,
and
associated
noise
impacts,
have
been
analyzed
as
part
of
site
grading
and
construction
activities.
The
Draft
EIR
makes
no
assertion
that
the
Baylands
or
City
of
Brisbane
are
not
subject
to
overflights
of
aircraft
from
SFO.
On
page
4.J-36,
the
Draft
EIR
states
that,
as
noted
in
Section
4.I,
Land
Use
and
Planning
,
the
Baylands
site
is
within
Airport
Influence
Area
A,
which
is
defined
as
an
area
that
is
flown
by
an
aircraft
at
an
altitude
of
10,000
feet
or
less
above
mean
sea
level
a
minimum
of
once
weekly.
The
unique
environment
of
the
City
of
Brisbane
is
not
that
it
amplifies
sound,
but
rather
that
it
is
an
efficient
transmitter
of
sound.
The
slope
of
the
valley
means
that
homes,
like
seats
in
an
amphitheater,
have
a
“good
view”
of
noise
sources.
This
means
that
noise
will
propagate
better
than
in
a
typical
flat
community
because
buildings
are
less
likely
to
intercept
the
line-of-sight
to
a
noise
source.
Noise
monitoring
locations
at
off-site
receptors
in
the
Draft
EIR
were
selected
based
on
proximity
to
the
Baylands
Project
site
in
order
to
establish
the
existing
noise
levels
at
the
closest
sensitive
receptors
that
would
be
most
impacted
by
construction
activities
or
operations
on
the
Baylands
Project
site.
More
distant
receptors
would
be
affected
to
a
lesser
degree
due
to
the
attenuation
of
sound
with
distance.
Draft
EIR
page
4.J-6
presents
noise
monitoring
data
for
eight
locations
all
in
the
City
of
Brisbane,
either
on
or
adjacent
to
the
Baylands
Project
area,
two
of
which
are
at
higher
elevations
than
the
area.
A
noise
monitoring
station
operated
by
SFO
on
Kings
Road
on
San
Bruno
Mountain,
well
away
from
Caltrain,
reports
monitored
noise
levels
for
2013
of
55.4
CNEL
(SFO
Aircraft
Noise
Abatement
Office,
2014),
which
indicates
that
the
existing
noise
levels
at
the
more
elevated
areas
of
central
Brisbane
are
lower
than
in
the
flatlands
areas
surrounding
Caltrain,
U.S.
101
and
Bayshore
Boulevard.
Mitigation
measures
are
identified
in
the
Draft
EIR
to
minimize
the
exposure
of
people
within
the
Baylands
Project
Site
(Mitigation
Measure
4.J-1a
and
4.J-1b
)
,
reduce
vibration
impacts
to
proposed
residences
of
the
DSP
and
DSP-V
scenarios
(Mitigation
Measure
4.J-2a),
reduce
vibration
impacts
to
existing
structures
(Mitigation
Measure
4.J-2b),
reduce
noise
impacts
from
stationary
sources
and
truck
loading
under
the
Specific
Plan
(Mitigation
Measure
4.J-3a),
reduce
noise
impacts
from
wind
turbines
proposed
under
the
CPP
and
CPP-V
scenario
Brisbane
Baylands
Final
EIR
2.9.3-100
May
2015