Permit
No.
MA0004006
Page
1
of
15
AUTHORIZATION
TO
DISCHARGE
UNDER
THE
NATIONAL
POLLUTANT
DISCHARGE
ELIMINATION
SYSTEM
In
compliance
with
the
provisions
of
the
Federal
Clean
Water
Act
as
amended,
(
33
U.
S.
C.
§
§
1251
et
seq.;
the
"
CWA",
and
the
Massachusetts
Clean
Waters
Act,
as
amended,
(
M.
G.
L.
Chap.
21,
§
§
26­
53),

East
Boston
Terminal
Company
Division
of
Tosco
Corporation
is
authorized
to
discharge
from
a
facility
located
at
Tosco
East
Boston
Terminal
467
and
580
Chelsea
Street
East
Boston,
Massachsuetts
02128
to
receiving
water
named
Chelsea
River
(
Boston
Harbor/
Mystic
River
Watershed)

in
accordance
with
effluent
limitations,
monitoring
requirements
and
other
conditions
set
forth
herein.

This
permit
shall
become
effective
on
the
date
of
signature.

This
permit
and
the
authorization
to
discharge
expire
at
midnight,
five
(
5)
years
from
the
effective
date.

This
Permit
supersedes
the
permit
issued
on
September
28,
1990.

This
permit
consists
of
15
pages
in
Part
I
including
effluent
limitations,
monitoring
requirements,
Attachment
A
and
B,
and
35
pages
in
Part
II
including
General
Conditions
and
Definitions.

Signed
this
day
of
_________________________
__________________________
Director
Director
Office
of
Ecosystem
Protection
Division
of
Watershed
Management
Environmental
Protection
Agency
Department
of
Environmental
Protection
Boston,
MA
Commonwealth
of
Massachusetts
Boston,
MA
Permit
No.
MA0004006
Page
2
of
15
PART
I
A.
EFFLUENT
LIMITATIONS
AND
MONITORING
REQUIREMENTS
1.
During
the
period
beginning
the
effective
date
and
lasting
through
expiration,
the
permittee
is
authorized
to
discharge
treated
effluent
from
outfall
serial
number
001
to
the
Chelsea
River.
The
discharge
is
comprised
of
stormwater,
tank
truck
washwater,

hydrostatic
tank
and
line
water,
as
well
as
groundwater
from
remedial
wells
which
is
treated
by
a
wastewater
treatment
system
consisting
of
multimedia
filters
and
activated
carbon
filters.
In
addition,
tank
bottom
water
from
onsite,
if
discharged,
is
pretreated
by
a
portable
granular
activated
carbon
system
prior
to
discharge
to
the
wastewater
treatment
system.
Such
discharges
shall
be
limited
and
monitored
by
the
permittee
as
specified
below.

2.
Effluent
Characteristic
Units
Discharge
Limitation
Monitoring
Requirement
Average
Monthly6
Average
Weekly
Maximum
Daily7
Measurement
Frequency
Sample
Type
Flow1,3
MGD
Report
­­­­
Report
Continuous
Meter
Total
Suspended
Solids
(
TSS)
mg/
l
30
­­­­
100
1/
Month
Grab
Oil
and
Grease
mg/
l
­­­­
­­­­
15
1/
Month
Grab
Polynuclear
Aromatic
Hydrocarbons
(
PAHs)

Single
Chemical
Sum
of
all
PAH's
present
ng/
l2
ng/
l2
­­­­
­­­­
­­­­

­­­­
31
31
1/
Month
1/
Month
Grab
Grab
Permit
No.
MA0004006
Page
3
of
15
Volatile
Organic
Compounds
Benzene
Toluene
Ethylbenzene
Xylenes
(
total
3
isomers)
ug/
l
ug/
l
ug/
l
ug/
l
­­­­
­­­­
­­
­­
­­­­
­­­­
­­­­
­­­­
­­­­
40
Report
Report
Report
1/
Month
1/
Month
1/
Month
1/
Month
Grab
Grab
Grab
Grab
LC
50
4,5
%
­­­­
­­­­
>
50
2/
Year
Grab
Lead,
total
ug/
l
­­­­
­­­­
Report
4/
Year
Grab
Footnotes:

1.
For
flow,
report
maximum
and
minimum
daily
rates
and
total
flow
for
each
operating
date.

2..
ng/
l
stands
for
nanograms
per
liter.
See
Part
I.
A.
2.
o.
for
the
limit
at
which
compliance/
noncompliance
is
based,
see
Part
I.
A.
2.
o.
for
sampling
details.

3.
See
Part
I.
A.
4.
for
flow
rate
control
requirements.

4.
The
LC
50
is
the
concentration
of
effluent
which
causes
mortality
to
50%
of
the
test
organisms.
Therefore,
a
>
50%
limit
means
that
a
sample
of
50%
effluent
shall
cause
no
more
than
a
50%
mortality
rate.

5.
The
permittee
shall
conduct
acute
toxicity
tests
at
Outfall
001
two
times
per
year
in
March
and
September
for
chemical
analysis,
and
shall
be
analyzed
in
accordance
with
the
protocol
established
in
Attachment
A.
A
48­
hour
acute
WET
test
will
be
performed
on
each
sample
using
one
specie,
Mysid
shrimp
(
Mysidopsis
Bahia)
according
to
the
procedure
in
Attachment
A­
Acute
Toxicity
Procedure
and
Protocol,
dated
September
1996.
Results
from
the
toxicity
testing
shall
be
submitted
within
30
days
after
the
sampling
date
with
the
routine
Discharge
Monitoring
Reports
(
DMRs).

Acute
WET
testing
is
used
to
determine
the
effluent
concentration,
by
volume,
that
is
lethal
to
50
percent
of
the
test
organisms
within
a
prescribed
period
of
time,
for
this
permit,
48
hours
or
less.
Death
is
the
effected
measure.
Effluent
toxicity
measured
is
expressed
as
the
median
lethal
concentration,
in
percent
effluent
by
volume,
or
LC
50.

6.
Average
monthly
discharge
limitation
as
defined
in
40
CFR
Part
122.2
is
the
highest
allowable
average
of
daily
discharges
over
a
calendar
month,
calculated
as
the
sum
of
all
daily
discharges
measured
during
a
calendar
month
divided
by
the
number
of
daily
discharges
measured
during
that
month.
Additional
samples
for
TSS
may
be
taken
throughout
the
month
in
an
effort
to
comply
with
the
average
monthly
discharge
limit.

7.
Maximum
daily
discharge
as
defined
in
40
CFR
Part
122.2
means
the
highest
allowable
Permit
No.
MA0004006
Page
4
of
15
daily
discharge.

8.
The
permittee
shall
collect
samples
for
total
lead
during
the
months
of
March,
June,
September
and
December.
Permit
No.
MA0004006
Page
5
of
15
Part
I.
A.
2.

a.
The
discharge
shall
not
cause
a
violation
of
the
water
quality
standards
of
the
receiving
waters.

b.
There
shall
be
no
discharge
of
floating
solids
or
visible
foam
other
than
in
trace
amounts.

c.
The
pH
of
the
effluent
shall
not
be
less
than
6.5
nor
greater
than
8.5
at
any
time,
unless
these
values
are
exceeded
due
to
natural
causes
(
314
CMR
4.03(
5)).

d.
The
discharge
shall
not
cause
objectionable
discoloration
of
the
receiving
waters.

e.
The
effluent
shall
contain
neither
a
visible
oil
sheen,
foam,
nor
floating
solids
at
any
time.

f.
As
listed
in
40
CFR
Part
136,
method
610
PAHs
,
see
Attachment
B
for
PAH
listing.

g.
The
discharge
shall
not
contain
materials
in
concentrations
or
combinations
which
are
hazardous
or
toxic
to
human
health,
aquatic
life
of
the
receiving
surface
waters
or
which
would
impair
the
uses
designated
by
its
classification.

h.
The
discharge
shall
not
impart
color,
taste,
turbidity,
toxicity,
radioactivity
or
other
properties
which
cause
those
waters
to
be
unsuitable
for
the
designated
uses
and
characteristics
ascribed
to
their
use.

i.
Notwithstanding
specific
conditions
of
this
permit,
the
effluent
must
not
lower
the
quality
of
any
classified
body
of
water
below
such
classification,
or
lower
the
existing
quality
of
any
body
of
water
if
the
existing
quality
is
higher
than
the
classification.

j.
There
shall
be
no
discharge
of
tank
bottom
drawoffs
alone
or
in
combination
with
other
wastewater
unless
specifically
approved
by
the
U.
S.
Environmental
Protection
Agency
(
EPA)
and
the
Massachusetts
Department
of
Environmental
Protection
(
DEP).
The
permittee
must
demonstrate
that
the
proposed
treated
tank
bottom
drawoffs
meet
a
Whole
Effluent
Toxicity
(
WET)
LC
50,
for
Mysid
Shrimp,
limit
of
>
50%
effluent
as
well
as
all
the
chemical
and
physical
effluent
limitations
for
Outfall
001.

k.
Chemicals
(
i.
e.
disinfecting
agents,
detergents,
emulsifiers,
etc.),
bioremedial
agents
including
microbes
shall
not
be
added
to
the
collection
and
treatment
systems
without
prior
approval
by
EPA
and
the
DEP
to
prevent
hydrocarbon
and/
or
particulate
matter
carryover
into
the
Chelsea
River.

l.
The
bypass
of
stormwater
runoff,
wash
water,
or
water
used
at
the
facility
is
prohibited,
except
during
naturally
occurring
precipitation
from
severe
weather
incidents
such
as
a
hurricane.
Each
bypass
shall
be
reported
in
the
appropriate
monthly
DMR,
indicating
the
Permit
No.
MA0004006
Page
6
of
15
estimated
duration
of
the
bypass.

m.
EPA
may
modify
this
permit
in
accordance
with
EPA
regulations
in
40
Code
of
Federal
Regulations
(
CFR)
§
122.62
and
§
122.63
to
incorporate
more
stringent
effluent
limitations,
increase
the
frequency
of
analyses,
or
impose
additional
sampling
and
analytical
requirements.

n.
The
appearance
of
any
size
sheen
attributable
to
the
discharge
from
the
Tosco
East
Boston
terminal
shall
be
reported
immediately
by
the
permittee
to
the
appropriate
U.
S.
Coast
Guard
Officer
in
accordance
with
Section
311
of
the
Clean
Water
Act
(
CWA).
This
requirement
is
separate
and
distinct
from
the
National
Pollutant
Discharge
Elimination
System
(
NPDES)

permit
requirements.

o.
Compliance/
non­
compliance
for
PAHs
will
be
based
on
the
Minimum
Level
(
ML).
ML
is
defined
as
the
level
at
which
the
entire
analytical
system
gives
recognizable
mass
spectra
and
acceptable
calibration
points.
This
level
corresponds
to
the
lower
points
at
which
the
calibration
curve
is
determined
based
on
analysis
for
the
pollutant
of
concern
in
reagent
water.
It
has
been
determined
that
the
ML
for
each
of
the
PAHs
listed
in
Attachment
C
of
the
fact
sheet
is
10
ug/
l.
The
ML
for
each
PAHs
will
be
10
ug/
l.
The
sum
of
all
16
PAHs
must
not
exceed
50
ug/
l.
Neither
the
designated
ML
or
the
sum
of
all
16
PAHs
can
be
changed
except
for
a
major
modification.

p.
Monitoring
at
Outfall
001
will
be
done
in
accordance
with
the
following
protocol:

(
1).
A
grab
sample
shall
be
taken
within
the
first
hour
after
discharge
begins.
A
negative
Discharge
Monitoring
Report
shall
be
submitted
for
each
month
that
there
is
no
discharge.

(
2).
The
biological
sample
will
be
a
portion
of
the
sample
taken
within
the
first
hour
after
the
discharge
begins
and
the
analysis
shall
be
in
accordance
with
Attachment
A.
The
biological
samples
will
be
taken
during
the
months
of
March
and
September.
See
I.
A.
2.
j.

q.
Laboratory
Protocol
(
1).
The
quantitative
methodology
used
for
the
PAH
analysis
must
be
capable
of
achieving
a
detection
limit
of
less
than
or
equal
to
10
ug/
l.
The
analysis
for
benzene,
toluene,
ethylbenzene,
and
xylene
must
achieve
a
detection
limit
of
equal
to
Permit
No.
MA0004006
Page
7
of
15
or
less
than
2.5
ug/
l.

(
2).
The
permittee
shall
provide
a
copy
of
the
laboratory
data
sheets
for
each
PAH
and
biological
analysis
giving
test
methods
and
the
detection
limit
for
each
compound.
Whenever
possible,
the
analysis
for
BETX,
PAHs
and
biological
tests
shall
be
from
a
split
sample
or
separate
samples
taken
in
rapid
sequence.
BETX
compounds
can
be
analyzed
using
EPA's
Method
602
with
the
addition
of
a
xylene
standard.
The
instrument
calibration
and
the
amount
of
quality
control
performed
will
be
the
same
as
for
the
other
BETX
compounds.

Part
I.
A.
3.

All
existing
manufacturing,
commercial,
mining
and
silvicultural
dischargers
must
notify
the
Director
as
soon
as
they
know
or
have
reason
to
believe:

a.
That
any
activity
has
occurred
or
will
occur
which
would
result
in
the
discharge,
on
a
routine
basis,
of
any
toxic
pollutant
which
is
not
limited
in
the
permit,
if
that
discharge
will
exceed
the
highest
of
the
following
"
notification
levels:"

(
1)
One
hundred
micrograms
per
liter
(
100
ug/
l);

(
2)
Two
hundred
micrograms
per
liter
(
200
ug/
l)
for
acrolein
and
acrylonitrite;
five
hundred
micrograms
per
liter
(
500
ug/
l)
for
2,4­
dinitrophenol;
and
one
milligram
per
liter
(
1
mg/
l)
for
antimony;

(
3)
Five
(
5)
times
the
maximum
concentration
value
reported
for
that
pollutant
in
the
permit
application
in
accordance
with
40
C.
F.
R.
§
122.21(
g)(
7);
or
(
4)
Any
other
notification
level
established
by
the
Director
in
accordance
with
40
C.
F.
R.
§
122.44(
f).

b.
That
any
activity
has
occurred
or
will
occur
which
would
result
in
the
discharge,
on
a
nonroutine
or
infrequent
basis,
of
any
toxic
pollutant
which
is
not
limited
in
the
permit,
if
that
discharge
will
exceed
the
highest
of
the
following
"
notification
levels:"

(
1)
Five
hundred
micrograms
per
liter
(
500
ug/
l);

(
2)
One
milligram
per
liter
(
1
mg/
l)
for
antimony;

(
3)
Ten
(
10)
times
the
maximum
concentration
value
reported
for
that
pollutant
in
the
permit
application
in
accordance
with
40
C.
F.
R.
§
122.21(
g)(
7).

(
4)
Any
other
notification
level
established
by
the
Director
in
accordance
with
40
Permit
No.
MA0004006
Page
8
of
15
C.
F.
R.
§
122.44(
f).

c.
That
they
have
begun
or
expect
to
begin
to
use
or
manufacture
as
an
intermediate
or
final
product
or
byproduct
any
toxic
pollutant
which
was
not
reported
in
the
permit
application.

Part
I.
A.
4.

Wastewater
Treatment
System
Flow
Control
The
permittee
shall
control
the
water
flow
rate
through
the
wastewater
treatment
system
to
the
optimum
design
flow
via
a
continuous
recording
flow
meter.
On
the
effective
date
of
the
permit,
using
continuous
recording
flow
meters,
the
permittee
shall
manually
control
the
flow
to
the
wastewater
treatment
system.
Alternatively,
the
permittee
may
request
that
the
Regional
Administrator
accept
substitution
of
an
alternate
method
of
control
which
may
include
the
following:

a.
A
flow
reduction
or
constriction
device
to
prevent
the
flow
through
the
wastewater
treatment
system
from
ever
exceeding
the
maximum
design
flow
rate
or,

b.
by
demonstrating
to
EPA
and
MADEP
that
the
operational
procedures
are
sufficiently
clear
and
rigid
that
operator
(
s)
will
not
exceed
the
maximum
design
flow
rate
of
the
wastewater
treatment
system
by
concurrently
draining
more
diked
or
undiked
areas
than
prescribed
in
the
procedures
or,

c.
by
any
other
means
of
control
that
prevents
the
flow
from
exceeding
the
maximum
design
flow
rate
of
the
wastewater
treatment
system.

The
permittee
shall
conduct
periodic
compliance
evaluations
of
the
methods
of
control
for
regulating
water
flow
rate
and
treating
and
managing
storm
water
through
the
wastewater
treatment
system,
as
described
in
the
Best
Management
Practices
Plan
requirements.

Part
I.
A.
5.

Toxics
Control
a.
The
permittee
shall
not
discharge
any
pollutant
or
combination
of
pollutants
in
toxic
amounts.

b.
Any
toxic
components
of
the
effluent
shall
not
result
in
any
demonstrable
harm
to
aquatic
life
or
violate
any
state
or
federal
water
quality
standard
which
has
been
or
may
be
promulgated.
Upon
promulgation
of
any
such
standard,
this
permit
may
be
revised
or
amended
in
accordance
with
such
standards.
Permit
No.
MA0004006
Page
9
of
15
Part
I.
A.
6.

Numerical
Effluent
Limitations
for
Toxicants
EPA
or
DEP
may
use
the
results
of
the
toxicity
tests
and
chemical
analyses
conducted
pursuant
to
this
permit,
as
well
as
national
water
quality
criteria
developed
pursuant
to
Section
304(
a)(
1)
of
the
Clean
Water
Act(
CWA),
state
water
quality
criteria,
and
any
other
appropriate
information
or
data,
to
develop
numerical
effluent
limitations
for
any
pollutants,
including
but
not
limited
to
those
pollutants
listed
in
Appendix
D
of
40
CFR
Part
122.

B.
BEST
MANAGEMENT
PRACTICES
PLAN
The
permittee
shall
update
and
implement
the
existing
Best
Management
Practices
(
BMP)
plan
to
achieve
the
stated
objectives
and
which
conforms
to
the
following
requirements:

1.
General
Conditions
a.
General
Objectives
The
objectives
of
the
BMP
plan
are
to
minimize
the
potential
for
violations
of
terms
of
the
permit;
to
protect
the
designated
water
uses
of
the
surrounding
surface
water
bodies,
and
to
mitigate
pollution
from
material
storage
areas,
in­
plant
transfer,
process
and
material
handling
areas,
loading
and
unloading
operations,
plant
site
runoff
and
accidental
spills.
Both
wet­
weather
and
dry­
weather
conditions
are
to
be
considered
in
the
BMP
plan.

b.
Implementation
An
updated
BMP
plan
shall
be
developed
within
90
days
of
the
effective
date
of
the
permit
and
a
copy
of
the
final
BMP
plan
shall
be
submitted
to
EPA
and
the
State.
The
permittee
shall
submit
a
statement
that
certifies
that
the
BMP
plan
has
been
updated
and
it
shall
be
implemented
in
accordance
with
its
schedule
and
requirements.
This
certification
shall
be
signed
in
accordance
with
NPDES
General
Requirements,
Part
II.
D.
2
Implementation
of
all
aspects
of
the
plan
shall
commence
no
later
that
12
months
after
the
effective
date
of
the
permit.
(
see
part
I.
B.
3
Implementation
Schedule
below)
unless
a
later
date
is
approved
in
writing
by
the
Regional
Administrator
and
the
Director.

c.
General
Requirements
Permit
No.
MA0004006
Page
10
of
15
The
BMP
plan
shall:

(
1)
Be
documented
in
narrative
form,
and
shall
include
any
necessary
plot
plans,
drawings,
or
maps.

(
2)
Establish
specific
objectives
for
the
control
of
toxic
and
hazardous
pollutants.

(
a)
Each
facility
component
or
system
will
be
examined
for
its
potential
for
causing
a
release
of
significant
amounts
of
toxic
and
hazardous
pollutants
to
surface
waters
due
to
equipment
failure,
improper
operation,
natural
phenomena
such
as
precipitation,
etc.

Locations
at
which
bypasses
of
the
treatment
systems
may
occur
as
well
as
projected
conditions
under
which
a
bypass
may
be
necessary
will
be
submitted.

(
b)
Where
experience
indicates
a
reasonable
potential
for
equipment
failure
(
e.
g.
a
tank
overflow
or
leakage),
natural
phenomena
(
e.
g.,
precipitation),
or
other
circumstances
to
result
in
significant
amounts
of
toxic
or
hazardous
pollutants
reaching
surface
waters,
the
plan
shall
include
a
prediction
of
the
direction,
rate
of
flow
and
total
quantity
of
toxic
or
hazardous
pollutants
which
could
be
discharged,
from
the
facility
as
a
result
of
each
condition
or
circumstances.

(
3)
Establish
specific
best
management
practices
to
meet
the
objectives
identified
under
Part
I.
B.
1.
c.(
2)
of
this
section,
addressing
each
component
of
system
capable
of
causing
a
release
of
significant
amounts
of
toxic
or
hazardous
pollutants
to
surface
waters.
Examples
are:
specific
practices
to
minimize
and/
or
control
the
use
of
bypasses
shall
be
identified,
maximum
flow
rate
control
through
the
wastewater
treatment
system,
etc.

(
4)
Include
any
special
conditions
established
in
accordance
with
Part
I.
B.
2
Specific
Conditions,
below.

(
5)
Be
reviewed
by
plant
engineering
staff
and
the
terminal
manager.

d.
Specific
Requirements
The
plan
shall
be
consistent
with
the
general
guidance
contained
in
the
publication
entitled
"
NPDES
Best
Management
Practices
Guidance
Documents"
and
shall
consider
the
following
base
line
BMP's
as
a
minimum:

(
1)
BMP
Committee
(
2)
Report
BMP
Incidents
(
3)
Risk
Identification
and
Assessment
Permit
No.
MA0004006
Page
11
of
15
(
4)
Employee
Training
(
5)
Inspections
and
Records
(
6)
Preventive
Maintenance
(
7)
Good
Housekeeping
(
8)
Material
Compatibility
(
9)
Security
e.
SPCC
Plans
and
Standard
Company
Operational
Procedures
The
BMP
plan
may
reflect
requirements
for
Spill
Prevention
Control
and
Countermeasure
(
SPCC)
plans
under
Section
311
of
the
Act
and
40
CFR
Part
112,
and
may
incorporate
any
part
of
such
plans
into
the
BMP
plan
by
reference.
Any
promulgated
Standard
Company
Operational
procedures
may
be
incorporated
into
the
BMP
plan
by
reference.
Copies
of
both
the
SPCC
plan
and
operational
procedures
will
be
attached
to
the
BMP
plan
for
convenience
in
referencing
the
appropriate
sections.

f.
Hazardous
Water
Management
The
permittee
shall
assure
the
proper
management
of
solid
and
hazardous
waste
in
accordance
with
regulations
promulgated
under
the
Solid
Waste
Disposal
Act,
as
amended
by
the
Resource
Conservation
and
Recovery
Act
(
RCRA)
of
1978
(
40
U.
S.
C.
6901
et
seq),
or
amendments
thereto.
Management
practices
required
under
RCRA
regulation
shall
be
referenced
in
the
BMP
plan.

g.
Documentation
The
permittee
shall
maintain
a
description
of
the
BMP
plan
at
the
facility
and
shall
make
the
plan
available
to
the
Regional
Administrator
and
the
Director
upon
request.

h.
BMP
Plan
Modification
The
permittee
shall
submit
to
the
Regional
Administrator
and
the
Director
an
amended
BMP
plan
within
30
days
of
a
change
in
the
physical
facility
or
a
change
in
the
operational
procedures
of
the
facility
which
materially
increases
the
potential
for
the
ancillary
activities
to
result
in
a
discharge
of
significant
amounts
of
hazardous
or
toxic
pollutants.

i.
Modification
for
Ineffectiveness
If
the
BMP
proves
to
be
ineffective
in
achieving
the
general
objective
of
preventing
the
release
of
significant
amounts
of
toxic
or
hazardous
pollutants
to
surface
waters
and
the
specific
objectives
and
requirements
under
under
Part
I.
B.
2.
herein,
the
permit
and/
or
the
BMP
plan
shall
be
subject
to
modification
(
40
CFR
§
122.64
and
§
122.63)
to
incorporate
Permit
No.
MA0004006
Page
12
of
15
revised
BMP
requirements.

2.
Specific
Conditions
a.
All
surface
runoff
from
process
or
work
areas
at
the
facility
shall
be
treated
or
contained
and
diverted
to
the
final
treatment
system.
Process
or
work
areas
are
defined
for
the
permit
as
all
those
areas
subject
to
spills
and
leaks
of
raw
materials
or
products
containing
toxic
or
hazardous
substances,
i.
e.
diked
areas,
docks,
loading
and
unloading
areas,
yard
areas,
etc.

(
1)
Treatment,
at
a
minimum,
shall
consist
of
an
efficiently
operated
wastewater
treatment
system.

(
2)
The
final
treatment
system
must
be
capable
of
treating
and/
or
containing
in
a
holding
basin
a
total
volume
of
surface
runoff,
from
process
areas
defined
in
Part
I.
B.
2.
a
above,
produced
by
24­
hour
rainfall
occurring
with
a
frequency
of
once
in
10
years.

The
permittee
shall
provide
a
detailed
design
showing
optimum
and
maximum
oil
and
water
flow
rates
for
the
wastewater
treatment
system
and
other
treatment
equipment
now
in
use
or
any
proposed
treatment
equipment
for
Outfall
001
(
e.
g.
if
an
o/
w
separator
is
used).
This
design
criteria
shall
include
but
not
be
limited
to
sketches
of
the
equipment,
the
design
water
flow
capacity,
the
design
oil
recovery
rate,
the
design
specific
gravities
of
the
oil
and
water,
design
oil
droplet
size,
and
design
operating
temperature
range.

The
contents
of
any
diked
area
or
holding
basin
shall
be
released
to
the
final
treatment
system
subject
to
Specific
Condition
I.
B.
2.
a.(
3)
immediately
below.

(
3)
The
release
of
runoff
from
any
diked
area
or
holding
basin
shall
be
controlled
so
that
this
discharge
alone
or
in
combination
with
all
other
wastewaters
does
not
exceed
the
optimum
design
flow
rate
for
the
wastewater
treatment
system
or
cause
violations
of
effluent
limitations
specified
in
Parts
I.
A.
1,
and
I.
A.
2,
for
Outfall
001.
Note:
The
tank
bottoms
drawoffs
shall
conform
to
the
requirements
in
Part
I.
A.
2.
j
before
release.

b.
All
storm
water
runoff
accumulated
in
the
tank
diked
areas
shall
be
discharged,
only
if,
for
each
discharge
event,
a
visual
inspection
is
made
of
the
diked
areas
to
ensure
that
the
treatment
system
can
handle
the
released
water
and
any
apparent
pollutant
load.
Permit
No.
MA0004006
Page
13
of
15
c.
The
existing
capability
to
divert
storm
water
drainage
bypassing
Outfall
001,
shall
be
subject
to
Parts
I.
B.
2.
a.
and
Parts
I.
B.
2.
b.

d.
The
BMP
plan
shall
specifically
address
the
adequacy
of
containment
of
leaks
and
spills
in
the
storage
areas
and
truck
loading
area.
Adequate
containment
must
exist
at
these
locations
so
as
to
prevent
untreated
discharges
from
reaching
any
surface
water.

e.
A
schedule
for
routinely
monitoring
and
cleaning
the
wastewater
treatment
system
shall
be
specified
in
the
BMP
plan.
In
addition,
the
BMP
plan
shall
establish
procedures
for
insuring
compliance
with
part
I.
B.
1
General
Conditions
and
part
I.
B.
2.
Specific
Conditions
during
such
cleaning
or
maintenance
periods.

f.
The
disposal
procedures
for
tank
bottom
sludge,
sediment,
and
any
washdown
waters
containing
detergents,
dispersants,
emulsifiers,
etc.
will
be
addressed
in
the
BMP
plan.

3.
Implementation
Schedule
a.
Construction
of
any
facilities
shall
begin
within
9
months
of
the
effective
date
of
the
permit.

b.
All
construction
required
by
the
BMP
plan
and
these
Specific
Conditions
shall
be
completed
and
the
facilities
placed
in
operation
within
24
months
of
the
effective
date
of
the
permit
or
at
a
later
date
as
may
be
approved
by
the
Regional
Administrator
and
the
Director.

c.
All
aspects
of
the
BMP
plan
which
do
not
require
construction
shall
be
implemented
on
the
submittal
date
of
the
BMP
plan
(
90
days
after
the
effective
date
of
the
permits).
All
other
requirements
and
conditions
shall
be
implemented
upon
completion
of
the
respective
construction,
or
within
24
months
of
the
effective
date
of
the
permit
or
at
a
later
date
as
may
be
approved
by
the
Regional
Administrator
and
the
Director.

d.
The
EPA
and
the
State
may
comment
on
the
BMP
plan
no
later
than
9
months
from
the
effective
date
of
the
permit.
If
EPA
or
the
State
submit
comments,
the
permittee
will
be
given
a
written
explanation
of
the
exact
nature
of
any
problems
and
a
reasonable
period
of
time
(
usually
not
to
exceed
90
days)
to
resubmit
a
modified
BMP
plan
addressing
those
concerns.

4.
BMP
Reporting
Requirements
a.
The
permittee
shall
prepare
and
submit
an
annual
BMP
report
to
the
EPA
and
the
DEP
by
June
30.
This
report
shall
address
the
adequacy
of
the
BMP
plan
in
achieving
the
general
objective
of
preventing
the
release
of
significant
amounts
of
toxic
or
hazardous
pollutants
Permit
No.
MA0004006
Page
14
of
15
to
surface
waters
and
the
specific
objectives
and
requirements
under
Parts
I.
B.(
1)(
c),
and
(
d).
In
addition
it
shall
also
include
:

(
1)
A
list
of
fuels,
additives
and
chemicals
stored
in
bulk
at
the
facility.

(
2)
Estimate
the
volume
of
tank
bottom
drawoffs
disposed
by
facility
during
the
previous
reporting
period
and
disposition
of
those
tank
bottom
drawoffs.

(
3)
A
list
of
any
changes
in
activities
at
the
facility
such
as
but
not
limited
to
changes
in
the
product
line,
stormwater
collection
system,
treatment
and
discharge
system,
and
significant
physical
facility
changes
such
as
the
number
of
storage
tanks
used,
the
size
of
the
land
parcel,
new
docks
new
loading
racks,
etc.

C.
UNAUTHORIZED
DISCHARGES
The
permittee
is
authorized
to
discharge
only
in
accordance
with
the
terms
and
conditions
of
this
permit
and
only
from
those
outfalls
listed
in
Part
I
A.
1.
and
2.
of
this
permit.
Discharges
of
wastewater
from
any
other
point
source
are
not
authorized
and
shall
be
reported
in
accordance
with
Section
D.
1.
e.
(
1)
of
the
General
Requirements
of
this
permit
(
Twenty­
four
hour
reporting).

D.
MONITORING
AND
REPORTING
1.
Reporting
Monitoring
results
obtained
during
the
previous
month
shall
be
summarized
for
each
month
and
reported
on
separate
Discharge
Monitoring
Report
Form(
s)
postmarked
no
later
than
the
15th
day
of
the
month
following
the
effective
date
of
the
permit.

Signed
and
dated
originals
of
these,
and
all
other
reports
required
herein,
shall
be
submitted
to
the
Director
and
the
State
at
the
following
addresses:

Environmental
Protection
Agency
Water
Technical
Unit
(
SEW)
P.
O.
Box
8127
Boston,
Massachusetts
02114
Permit
No.
MA0004006
Page
15
of
15
The
State
Agency
address
for
all
reports
except
toxicity
tests
is:

Massachusetts
Department
of
Environmental
Protection
Northeast
Regional
Office
205A
Lowell
Street
Wilmington,
MA
01887
Signed
and
dated
DMRs,
and
toxicity
test
reports
required
by
this
permit
shall
be
submitted
to
the
State
at:

Massachusetts
Department
of
Environmental
Protection
Division
of
Watershed
Management
Watershed
Planning
and
Permitting
Section
627
Main
Street,
2nd
Floor
Worcester,
Massachusetts
01608
E.
STATE
PERMIT
CONDITIONS
1.
This
Discharge
Permit
is
issued
jointly
by
the
U.
S.
Environmental
Protection
Agency
(
EPA)
and
the
Massachusetts
Department
of
Environmental
Protection
(
DEP)
under
Federal
and
State
law,
respectively.
As
such,
all
the
terms
and
conditions
of
this
permit
are
hereby
incorporated
into
and
constitute
a
discharge
permit
issued
by
the
Commissioner
of
the
MA
DEP
pursuant
to
M.
G.
L.
Chap.
21,
§
43.

2.
Each
Agency
shall
have
the
independent
right
to
enforce
the
terms
and
conditions
of
this
Permit.
Any
modification,
suspension
or
revocation
of
this
Permit
shall
be
effective
only
with
respect
to
the
Agency
taking
such
action,
and
shall
not
affect
the
validity
or
status
of
this
Permit
as
issued
by
the
other
Agency,
unless
and
until
each
Agency
has
concurred
in
writing
with
such
modification,
suspension
or
revocation.
In
the
event
any
portion
of
this
Permit
is
declared,
invalid,
illegal
or
otherwise
issued
in
violation
of
State
law
such
permit
shall
remain
in
full
force
and
effect
under
Federal
law
as
a
NPDES
Permit
issued
by
the
U.
S.
Environmental
Protection
Agency.
In
the
event
this
Permit
is
declared
invalid,
illegal
or
otherwise
issued
in
violation
of
Federal
law,
this
Permit
shall
remain
in
full
force
and
effect
under
State
law
as
a
Permit
issued
by
the
Commonwealth
of
Massachusetts.
