2.
Response
to
Comments
2.9
Individual
Responses
to
Comments
from
Organizations
See
for
discussion
regarding
the
adequacy
of
studies
for
use
in
the
Draft
EIR.
See
also
for
discussion
of
tidal
action
in
relation
to
the
former
landfill.
Title
27
closure
of
the
former
Brisbane
Landfill
will
be
required
to
prevent
any
increases
in
leachate
that
exceed
any
regulatory
thresholds.
See
for
discussion
of
tidal
action
in
relation
to
the
former
landfill.
Title
27
closure
of
the
former
Brisbane
Landfill
will
be
required
to
prevent
any
increases
in
leachate
that
exceed
any
regulatory
thresholds.
As
part
of
Title
27
landfill
closure,
the
RWQCB
will
determine
appropriate
monitoring
protocols.
See
for
discussion
of
tidal
action
in
relation
to
the
former
landfill.
Title
27
closure
of
the
former
Brisbane
Landfill
will
be
required
to
prevent
any
increases
in
leachate
that
exceed
regulatory
thresholds.
The
elevations
of
groundwater,
both
shallow
and
deep,
as
reported
by
GeoSyntec
underlying
the
landfill
are
found
in
the
10
to
40
feet
of
soil
cover
placed
on
top
of
the
solid
waste
accepted
by
the
landfill.
Leachate
is
collected
by
the
leachate
seep
collection
system
and
conveyed
via
the
sewer
line
to
the
Brisbane
Sanitary
District.
The
occurrence
of
leachate
seeps
has
ceased
since
the
leachate
collection
system
has
been
operational.
The
purpose
of
the
leachate
wells
is
to
monitor
contaminants
in
the
leachate.
This
comment
references
unidentified
evidence
regarding
the
effects
of
testing;
however,
no
documentation
is
provided
to
demonstrate
a
cause
and
effect
relationship
between
groundwater
testing
and
the
movement
of
contaminants.
See
for
discussion
regarding
the
adequacy
of
existing
studies
for
use
in
the
Draft
EIR.
As
part
of
site
remediation
and
Title
27
landfill
closure,
the
RWQCB
will
require
remediation
of
existing
groundwater
contamination.
The
sentence
cited
in
this
comment
provides
an
introductory
overview
of
historic
hazardous
materials
and
contamination
within
the
site.
Bunker
C
fuel
oil
(also
known
as
No.
6
fuel
oil)
is
dense,
viscous
oil
that
is,
in
fact,
low
in
solubility
and
mobility;
the
Draft
EIR
does
not
assert
that
Bunker
C
oil
is
completely
insoluble
and
immobile.
Lead
is,
in
fact,
also
low
in
solubility
and
mobility;
the
Draft
EIR
does
not
assert
that
it
is
completely
insoluble
and
immobile.
The
discussion
of
soil
and
groundwater
contamination
starting
on
Draft
EIR
page
4.G-52
identifies
constituents
of
concern
located
within
See
13
for
discussion
of
the
remediation
review
process.
As
part
of
required
remediation
for
the
RWQCB
will
set
risk-based
cleanup
goals
for
based
on
the
land
uses
determined
by
the
City
to
be
appropriate
Brisbane
Baylands
Final
EIR
2.9.1-39
May
2015