2.
Response
to
Comments
2.10
Individual
Responses
to
Comments
from
Individuals
Dilworth
Pacific
Lithograph
Printing
Co.
has
been
identified
in
the
Groundwater
Extraction
Treatment
System
operation
and
maintenance
reports
submitted
to
the
State
of
California
Environmental
Protection
Agency,
Department
of
Toxic
Substances
Control
(DTSC).
The
onsite
ditch
is
within
The
San
Francisco
portion
of
has
been
investigated
and
remediated,
and
is
outside
of
the
Brisbane
Baylands
Project
site
being
analyzed
in
the
Draft
EIR.
Characterizing
the
history
of
offsite
businesses
will
not
add
to
the
understanding
of
contamination
within
the
Baylands,
including
and
since
soils
and
groundwater
have
been
actively
tested
over
a
number
of
years.
See
for
discussion
of
the
adequacy
of
studies
for
use
in
the
Draft
EIR.
See
for
discussion
of
the
adequacy
of
existing
studies
for
use
in
the
Draft
EIR.
Soils
investigations
within
the
former
rail
yard
have
been
conducted
to
determine
types
and
levels
of
contamination.
See
for
discussion
of
the
adequacy
of
existing
studies
for
use
in
the
Draft
EIR.
The
Groundwater
Extraction
System
placed
at
consisted
of
8
groundwater
extraction
wells,
5
of
which
are
within
the
Brisbane
or
San
Mateo
County
portion
of
As
previously
noted,
the
investigations
determined
the
source
of
chlorinated
VOCs
was
the
former
degreasing
area
of
Plant
3
of
the
former
Schlage
Lock
facility.
The
VOCs
impacted
the
soil
and
groundwater
underlying
The
remedial
actions
listed
in
the
response
to
Comment
Dilworth
above
are
sufficient
to
address
the
constituents
of
concern
that
have
impacted
the
soil
and
groundwater
at
Dilworth
Dilworth
Dilworth
Dilworth
Dilworth
The
metals
listed
on
page
21
of
the
Hazardous
Materials
Summary
Report
–
Operable
Units
1
and
2,
Former
Southern
Pacific
Railyard,
Brisbane,
San
Mateo
County,
California
(GeoSyntec,
March
1,
2012)
are
the
maximum
concentrations
of
metals
with
detected
concentrations
that
exceeded
the
screening
threshold.
The
entire
metals
analysis
is
reported
in
Additional
Investigation,
San
Francisco
and
Brisbane,
California
(Burns
&
McDonnell,
November
29,
2006).
Dilworth
See
for
discussion
of
the
adequacy
of
existing
studies
for
use
in
the
Draft
EIR.
PCBs
have
been
located
within
both
and
as
reported
by
Geosyntec
and
illustrated
in
Draft
EIR
Figure
4.G-6g.
The
detected
concentrations
of
PCBs
are
also
illustrated
on
Figure
10
of
the
Hazardous
Materials
Summary
Report
–
Brisbane
Baylands
Final
EIR
2.10.3-2
May
2015