2.
Response
to
Comments
2.9
Individual
Responses
to
Comments
from
Organizations
for
stormwater
pollution
and
prevention.
That
said,
CEQA
does
not
require,
nor
does
the
City
have
the
authority
to
require,
mitigation
measures
for
impacts
not
created
by
the
Project,
such
as
existing
water
quality
in
the
Lagoon.
Flooding
hazards
are
directly
related
to
ground
elevations
and
raising
existing
grades
is
a
proven
approach
to
avoiding
flooding
hazards
as
described
in
the
Draft
EIR
on
page
4.H-35.
In
addition,
as
stated
in
the
Draft
EIR
on
page
4.H-38,
Mitigation
Measure
4.H-8
specifically
requires
that
“site
-specific
development
within
the
Project
Site
shall
incorporate
protection
measures
that
demonstrate
ability
to
handle
the
flood
levels
expected
by
mid-
century
in
accordance
with
the
San
Francisco
Bay
Plan.”
As
such,
flooding
hazards
including
those
that
would
occur
with
future
sea
level
rise
would
be
reduced
to
less
than
significant
levels.
Also,
see
regarding
issues
of
City
liability.
The
Draft
EIR
Hydrology
section
discusses
the
effects
of
rising
sea
levels
on
Project
Site
development
and,
as
stated
in
Response
Mitigation
Measure
4.H-8
requires
that
project
design
be
subject
to
preparation
of
a
Sea
Level
Rise
Risk
Assessment
in
accordance
with
the
San
Francisco
Bay
Plan
policies
and
oversight
from
BCDC.
Specifically,
Mitigation
Measure
4.H-8
on
page
4.H-39
of
the
Draft
EIR
requires
that
“site
-specific
development
within
the
Project
Site
shall
incorporate
protection
measures
that
demonstrate
ability
to
handle
the
flood
levels
expected
by
mid-
century
in
accordance
with
the
San
Francisco
Bay
Plan.”
Seismic
hazards,
including
groundshaking
hazards
and
potential
failure
of
the
landfill
cap,
are
addressed
in
the
Draft
EIR
on
page
4.E-38.
See
also
regarding
seismic
safety.
Section
3.12
of
the
Draft
EIR,
Site
Preparation
and
Grading
,
provides
information
regarding
the
grading
concepts
used
in
the
analysis
of
Project
Site
development
starting
on
page
Finished
grade
elevations
are
anticipated
being
between
21
and
26
feet
above
mean
sea
level
and
would
apply
to
all
proposed
buildings
within
the
Baylands.
Because
first
floor
elevations
of
buildings
within
the
Baylands
will
be
raised
above
anticipated
flood
heights
(accounting
for
100
years
of
estimated
sea
level
rise),
elevations
in
relation
to
the
berm
at
Bayshore
and
Main
Street
are
not
critical.
As
stated
on
Draft
EIR
page
4.H-28,
proposed
drainage
facilities
would
be
designed
in
accordance
with
the
City
of
Brisbane
Storm
Drainage
Master
Plan
(SDMP)
requirements,
which
reflect
a
comprehensive
approach
to
drainage
control
within
the
drainage
basin.
Mitigation
Measure
4.H-
4a
states
that
“drainage
improvements
shall
accommodate
the
100-year
peak
storm
event
within
the
piping
system
and
streets
such
that
building
finished
floor
elevations
provide
a
minimum
of
1-foot
of
freeboard
above
the
100-year
storm
event
hydraulic
grade
Brisbane
Baylands
Final
EIR
2.9.1-99
May
2015