2.
Response
to
Comments
2.9
Individual
Responses
to
Comments
from
Organizations
Odor
control
using
activated
carbon
canister
shall
be
provided
for
all
air
that
is
vented
from
lift
stations.
For
treatment
units,
all
odor
control
systems
shall
be
two
state
–
biological
technology,
such
as
bulk
media
bio-filtration,
followed
by
activated
carbon.
Any
conventional
recycled
water
plant
shall
be
fully
enclosed
in
a
building
and
ventilated
through
a
two-stage
odor
scrubbing
system.
This
comment
provides
no
explanation
as
to
its
characterization
of
Mitigation
Measure
4.G-2f
as
“extreme.”
Mitigation
Measure
4.G-2f
is
intended
to
address
the
potential
buildup
of
methane
from
landfill
gas
within
underground
utilities
and
utility
vaults
and
is
specifically
designed
to
avoid
the
potential
buildup
of
methane
gas
to
potentially
explosive
concentrations
in
underground
vaults
and
utility
structures.
Specifically,
Mitigation
Measure
4.G-2h
requires
that
all
new
structures
within
the
former
landfill
footprint
and
within
and
as
well
as
on
site
areas
within
1,000
feet
of
the
waste
material
footprint,
shall
incorporate
sub-slab
vapor
barriers
to
minimize
potential
vapor
intrusion
into
buildings.
In
addition,
Mitigation
Measure
4.G-2h
requires
that
all
structures
built
within
1,000
feet
of
the
landfill
footprint
be
equipped
with
automatic
combustible
gas
sensors
in
sub-
floor
areas
and
in
the
first
floor
of
occupied
interior
spaces
of
buildings.
Mitigation
Measure
4.G-2h
further
requires
provision
of
a
centralized
sensor
monitoring
and
recording
system.
All
underground
utilities
constructed
within
the
Baylands
will
be
required
to
be
designed
to
meet
applicable
design
requirements,
including
the
ability
to
withstand
anticipated
settlement
within
the
former
landfill
area.
The
Draft
EIR
clearly
states
on
page
4.O-37
that
additional
storage
capacity
is
needed
to
provide
adequate
service
to
Baylands
development.
On
page
4.O-48,
the
Draft
EIR
states
that
the:
“location,
design,
and
method
of
construction
for
future
water
storage
facilities
to
serve
Project
Site
development
has
not
been
determined,
but
it
can
be
assumed
that
in
order
to
provide
for
sufficient
water
pressure
to
the
Project
Site,
a
new
storage
tank
would
need
to
be
located
at
an
elevation
higher
than
the
Project
Site,
most
likely
in
a
hillside
location.
Construction
of
a
new
storage
tank
could
result
in
environmental
impacts
due
to
(1)
siting,
which
could
affect
slope
stability
or
visual,
biological,
land
use,
and/or
cultural
resources;
and
(2)
construction,
which
could
result
in
noise,
dust,
other
air
pollutant
emissions,
soil
erosion,
and
possible
water
quality
effects.
While
it
is
likely
that
impacts
of
siting
and
constructing
such
a
storage
facility
could
be
avoided
or
mitigated
to
less-
Brisbane
Baylands
Final
EIR
2.9.2-205
May
2015