2.
Response
to
Comments
2.9
Individual
Responses
to
Comments
from
Organizations
No
factual
evidence
is
provided
in
the
comment
to
support
the
comment
assertion
that
it
is
“likely”
that
subsurface
seeps
into
the
Lagoon
exist.
Th
e
leachate
seep
collection
and
transmission
system
installed
by
the
landowner
as
part
of
a
leachate
management
system
as
required
by
the
RWQCB
is
located
at
the
southern
end
of
the
Brisbane
Landfill,
intercepts
leachate
from
seeps
and
conveys
the
leachate
to
the
Bayshore
Sanitary
District
sewer.
The
system
was
reported
effective
as
no
leachate
seeps
were
observed
during
the
2010
summer
monitoring
event.
The
conclusion
was
reached
then,
that
if
no
leachate
seeps
were
visible,
no
exposure
to
human
or
environmental
receptors
was
occurring.
See
See
See
See
See
3
for
discussion
regarding
implementation
of
EIR
mitigation
measures.
Chapter
4.0
of
the
Final
EIR
contains
the
Mitigation
Monitoring
and
Reporting
Program
that
details
how
each
EIR
mitigation
measure
will
be
implemented.
Remedial
action
plans
and
landfill
closure
plans
approved
by
the
RWQCB
and
DTSC
will
include
specification
requirements
for
implementation.
See
The
proposed
remedial
action
for
the
former
Brisbane
Landfill
will
be
required
to
address:
(1)
lack
of
a
low
permeability
engineered
landfill
cap
compliant
with
Title
27,
(2)
the
presence
of
leachate
and
the
requirement
to
prevent
any
increases
in
leachate
that
exceed
any
regulatory
thresholds,
(3)
hydrologic
connectivity
to
groundwater
and
surface
water,
primarily
the
Central
Drainage
Channel,
(4)
ongoing
consolidation
of
refuse
and
Bay
Muds,
and
(5)
control
of
landfill
gas.
The
former
landfill
remediation
includes
both
Final
Closure
and
Post-Closure
Plans
to
be
ultimately
approved
by
the
regulatory
agencies,
and
in
compliance
with
Title
27
will
include:
(1)
operation
and
maintenance
of
a
leachate
seep
collection
and
transmission
system,
(2)
operation
and
maintenance
of
the
landfill
gas
collection
and
control
system,
(3)
continued
groundwater,
surface
water
and
leachate
quality
monitoring
and
evaluation,
(4)
installation
of
a
final
cover
system
over
the
entire
landfill,
and
(5)
operation
of
a
landfill
gas
collection
and
monitoring
system.
Additionally
proposed
development
will
be
subject
to
land
use
controls
such
as
deed
restrictions
and
require
notifications
for
any
disturbances
of
the
ground.
Brisbane
Baylands
Final
EIR
2.9.3-78
May
2015