2.
Response
to
Comments
2.9
Individual
Responses
to
Comments
from
Organizations
The
World
Health
Organization
(WHO)
is
a
reputable
source
of
current
knowledge
regarding
the
health
effects
of
noise
impacts
because
European
nations
have
continued
to
study
noise
and
its
health
effects,
while
the
United
States
Environmental
Protection
Agency
all
but
eliminated
its
noise
investigation
and
control
program
in
the
1970s
(WHO,
1999).
Potential
health
effects
of
noise
identified
by
WHO
include
decreased
performance
for
complex
cognitive
tasks,
such
as
reading,
attention
span,
problem
solving,
and
memorization;
physiological
effects
such
as
hypertension
and
heart
disease
(after
many
years
of
constant
exposure,
often
by
workers,
to
high
noise
levels);
and
hearing
impairment
(again,
generally
after
long-term
occupational
exposure).
Based
on
reference
noise
levels
for
construction
equipment
at
a
distance
of
50
feet
such
as
presented
in
Table
4.J-7
and
4.J-8
of
the
Draft
EIR,
the
only
construction
activity
noise
that
would
have
the
potential
to
reach
unhealthful
levels
(90
dBA
or
greater)
would
be
pile
driving.
Prolonged
exposure
of
receptors
within
approximately
100
feet
of
pile
driving
could
have
adverse
health
effects.
The
Draft
EIR
identifies
a
significant
construction
noise
impact
and
Mitigation
Measure
4.J-4a
which
requires
all
applicants
for
site-specific
development
within
the
Baylands
site
to
implement
site-specific
noise
attenuation
measures
during
all
construction-related
activities
under
the
supervision
of
a
qualified
acoustical
consultant
as
a
prerequisite
to
issuance
of
site
grading(s),
to
ensure
that
construction
noise
does
not
exceed
the
standards
set
forth
in
the
City’s
noise
ordinance.
These
measures
are
to
be
included
in
a
Noise
Control
Plan
that
shall
be
submitted
for
review
and
approval
by
the
City
of
Brisbane
Building
Department.
Existing
aircraft
noise
is
captured
in
the
noise
monitoring
data
presented
in
Table
4.J-1
of
the
Draft
EIR,
which
cover
a
48-hour
period.
The
status
of
aircraft
noise
complaints
is
presented
on
page
4.J-5
of
the
Draft
EIR.
California
aircraft
noise
standards
are
set
in
terms
of
CNEL
which
is
a
cumulative
noise
descriptor
that
averages
hourly
noise
levels
over
a
one
day
period,
and
penalizes
evening
and
nighttime
hourly
contributions,
as
described
on
Draft
EIR
page
4.J-3.
The
potential
for
future
increases
in
flight
activity
at
SFO
and
proposed
development
within
the
Baylands
are
independent
activities
whose
review
and
possible
approval
are
not
related
to
each
other.
Future
noise
contours
for
year
2020
at
SFO
indicate
that
the
nearest
CNEL
65
contour
is
over
one
mile
to
the
south
of
the
City
of
Brisbane
(C/CAG,
2012).
Attempting
to
quantify
any
increase
in
aircraft
activity
beyond
that
which
SFO
currently
projects
through
2020
would
be
speculative.
Brisbane
Baylands
Final
EIR
2.9.2-116
May
2015