2.
Response
to
Comments
2.10
Individual
Responses
to
Comments
from
Individuals
Landfill
must
address
the
presence
of
leachate
and
the
requirement
to
prevent
any
increases
in
leachate
that
exceed
any
regulatory
thresholds.
Dilworth
2-23
Please
see
Dilworth
2-24
Figure
4
in
Appendix
H.2
illustrates
the
general
direction
of
Zone
A
groundwater
flow
in
the
area
which
indicates
the
source
of
the
MTBE
(and
likely
other
compounds)
in
the
shallow
upgradient
monitoring
wells
is
off
site,
most
likely
from
the
Kinder
Morgan
tank
farm.
Dilworth
2-25
A
leachate
seep
collection
system
was
installed
at
the
southern
end
of
the
landfill
pursuant
to
a
directive
issued
by
the
San
Francisco
Bay
Regional
Water
Quality
Control
Board.
Leachate
collected
by
this
system
is
conveyed
to
the
Brisbane
Sanitary
District
via
the
sewer
line.
As
discussed
Title
27
closure
of
the
former
Brisbane
Landfill
must
address
the
presence
of
leachate
and
the
requirement
to
prevent
any
increases
in
leachate
that
exceed
any
regulatory
thresholds.
Dilworth
2-26
See
See
for
discussion
of
the
remediation
review
and
approval
process
and
5
for
discussion
regarding
compliance
with
the
law
as
mitigation
under
CEQA.
The
RWQCB
and
DTSC,
as
the
responsible
regulatory
authorities
for
site
remediation
and
Title
27
landfill
closure,
are
obligated
to
prevent
the
spread
of
hazardous
waste
and
leachate
in
accordance
with
risk-based
cleanup
goals
designed
to
protect
human
health
and
environment.
Because
sea
level
rise
can
be
reasonably
forecasted,
it
will
need
to
be
taken
into
account
in
relation
to
remedial
technologies
and
monitoring.
Dilworth
2-27
Table
1
of
Draft
EIR
Appendix
H.2
lists
the
maximum
concentration
of
the
constituents
detected
in
groundwater
historically
and
from
2011
and
compares
these
concentrations
to
a
regulatory
threshold,
either
the
Maximum
Contaminant
Level
(MCL),
if
the
MCL
is
available,
i.e.,
developed
by
the
USEPA
and/or
the
State
of
California
Environmental
Protection
Agency
or
the
Basin
Plan,
pursuant
to
standard
of
practice;
other
constituents
were
ND
and
are
not
listed
in
the
table.
Dilworth
2-28
See
for
discussion
regarding
the
remediation
review
and
approval
process.
Brisbane
Baylands
Final
EIR
2.10.3-11
May
2015