Document ID: EPA-HQ-OW-2003-0074-1307
Agency: epa
Document Type: Supporting & Related Material
Title: 
Posted Date: 2004-09-02T04:00Z

Akron­
Canton
Airport
Fact
Sheet
Page
1
National
Pollutant
Discharge
Elimination
System
(
NPDES)
Permit
Program
F
A
C
T
S
H
E
E
T
Regarding
an
NPDES
Permit
To
Discharge
to
Waters
of
the
State
of
Ohio
for
Akron­
Canton
Regional
Airport
Public
Notice
No.:
OEPA
Permit
No.:
3IN00157*
AD
Public
Notice
Date:
Application
No.:
OH0101320
Comment
Period
Ends:

Name
and
Address
of
Facility
Where
Name
and
Address
of
Applicant:
Discharge
Occurs:

Akron­
Canton
Regional
Airport
Authority
Akron­
Canton
Airport
5400
Lauby
Road,
NW
5400
Lauby
Road
NW
P.
O.
Box
9
North
Canton,
Ohio
44720
North
Canton,
Ohio
44720
Stark
County
Receiving
Waters:
Rettig
Ditch,
Zimber
Ditch,
Subsequent
unnamed
tributaries
of
Zimber
Ditch,
Stream
Network:
Zimber
Ditch
to
McDowell
unnamed
tributary
of
Willowdale
Lake,
Ditch
to
West
Branch
Nimishillen
Creek
to
Nimisila
Creek
Nimishillen
Creek
to
Sandy
Creek
to
Tuscarwas
River
to
Muskingum
River
to
Ohio
River;
Nimisila
Creek
to
Willowdale
Lake
to
Nimisila
Creek
to
Tuscarawas
River
Introduction
Development
of
a
Fact
Sheet
for
NPDES
permits
is
mandated
by
Title
40
of
the
Code
of
Federal
Regulations,
Section
124.8
and
124.56.
This
document
fulfills
the
requirements
established
in
those
regulations
by
providing
the
information
necessary
to
inform
the
public
of
actions
proposed
by
the
Ohio
Environmental
Protection
Agency,
as
well
as
the
methods
by
which
the
public
can
participate
in
the
process
of
finalizing
those
actions.

This
Fact
Sheet
is
prepared
in
order
to
document
the
technical
basis
and
risk
management
decisions
that
are
considered
in
the
determination
of
water
quality
based
NPDES
Permit
effluent
limitations.
The
technical
basis
for
the
Fact
Sheet
may
consist
of
evaluations
of
promulgated
effluent
guidelines,
existing
effluent
quality,
instream
biological,
chemical
and
physical
conditions,
and
the
relative
risk
of
alternative
effluent
limitations.
This
Fact
Sheet
details
the
discretionary
decision­
making
process
empowered
to
the
Director
by
the
Clean
Water
Act
and
Ohio
Water
Pollution
Control
Law
(
ORC
6111).
Decisions
to
award
variances
to
Water
Quality
Standards
or
promulgated
effluent
guidelines
for
economic
or
technological
reasons
will
also
be
justified
in
the
Fact
Sheet
where
necessary.
Akron­
Canton
Airport
Fact
Sheet
Page
2
Procedures
for
Participation
in
the
Formulation
of
Final
Determinations
The
draft
action
shall
be
issued
as
a
final
action
unless
the
Director
revises
the
draft
after
consideration
of
the
record
of
a
public
meeting
or
written
comments,
or
upon
disapproval
by
the
Administrator
of
the
U.
S.
Environmental
Protection
Agency.

Within
thirty
days
of
the
date
of
the
Public
Notice,
any
person
may
request
or
petition
for
a
public
meeting
for
presentation
of
evidence,
statements
or
opinions.
The
purpose
of
the
public
meeting
is
to
obtain
additional
evidence.
Statements
concerning
the
issues
raised
by
the
party
requesting
the
meeting
are
invited.
Evidence
may
be
presented
by
the
applicant,
the
state,
and
other
parties,
and
following
presentation
of
such
evidence
other
interested
persons
may
present
testimony
of
facts
or
statements
of
opinion.

Requests
for
public
meetings
shall
be
in
writing
and
shall
state
the
action
of
the
Director
objected
to,
the
questions
to
be
considered,
and
the
reasons
the
action
is
contested.
Such
requests
should
be
addressed
to:

Legal
Records
Section
Ohio
Environmental
Protection
Agency
P.
O.
Box
1049
Columbus,
Ohio
43216­
1049
Interested
persons
are
invited
to
submit
written
comments
upon
the
discharge
permit.
Comments
should
be
submitted
in
person
or
by
mail
no
later
than
30
days
after
the
date
of
this
Public
Notice.
Deliver
or
mail
all
comments
to:

Ohio
Environmental
Protection
Agency
Attention:
Division
of
Surface
Water
Permits
Section
P.
O.
Box
1049
Columbus,
Ohio
43216­
1049
The
OEPA
permit
number
and
Public
Notice
numbers
should
appear
on
each
page
of
any
submitted
comments.
All
comments
received
no
later
than
30
days
after
the
date
of
the
Public
Notice
will
be
considered.

Citizens
may
conduct
file
reviews
regarding
specific
companies
or
sites.
Appointments
are
necessary
to
conduct
file
reviews,
because
requests
to
review
files
have
increased
dramatically
in
recent
years.
The
first
250
pages
copied
are
free.
For
requests
to
copy
more
than
250
pages,
there
is
a
five­
cent
charge
for
each
page
copied.
Payment
is
required
by
check
or
money
order,
made
payable
to
Treasurer
State
of
Ohio.
Akron­
Canton
Airport
Fact
Sheet
Page
3
Location
of
Discharge/
Receiving
Water
Use
Classification
Akron­
Canton
Airport
discharges
to
Zimber
Ditch
at
River
Mile
(
RM)
2.4
(
outfall
003),
to
an
unnamed
tributary
to
Zimber
Ditch
at
approximately
RM
0.4
(
002),
to
a
second
unnamed
tributary
of
Zimber
Ditch
at
approximately
RM
0.4
(
004),
to
a
third
unnamed
tributary
of
Zimber
Ditch
at
RMs
1.3
(
011),
0.8
(
012)
and
0.6
(
013).
There
are
also
discharges
to
Rettig
Ditch
at
RM
2.8
via
an
unnamed
tributary
(
006),
to
Nimisila
Creek
at
RM
9.35
(
007),
to
an
unnamed
tributary
of
Willowdale
Lake
at
RM
1.15
(
009),
to
an
unnamed
tributary
of
the
UT
Willowdale
Lake
at
RM
0.2
(
outfall
008)
and
to
a
second
unnamed
tributary
of
the
UT
Willowdale
Lake
at
RM
0.4.
The
approximate
location
of
the
facility
is
shown
in
Figure
1.

The
segment
of
the
Zimber
Ditch
upstream
of
Rettig
Ditch
is
described
by
Ohio
EPA
River
Code:
17­
481,
USEPA
River
Reach
#:
05040001­
NA,
County:
Stark,
Ecoregion:
Erie­
Ontario
Lake
Plain.
This
segment
of
Zimber
Ditch
is
presently
designated
for
the
following
uses:
Warmwater
Habitat
(
WWH),
Agricultural
Water
Supply
(
AWS),
Industrial
Water
Supply
(
IWS),
Secondary
Contact
Recreation
(
SCR).

The
segment
of
the
Zimber
Ditch
downstream
of
Rettig
Ditch
is
described
by
Ohio
EPA
River
Code:
17­
481,
USEPA
River
Reach
#:
05040001­
NA,
County:
Stark,
Ecoregion:
Erie­
Ontario
Lake
Plain.
This
segment
of
Zimber
Ditch
is
presently
designated
for
the
following
uses:
Modified
Warmwater
Habitat
(
MWH),
Agricultural
Water
Supply
(
AWS),
Industrial
Water
Supply
(
IWS),
Secondary
Contact
Recreation
(
SCR).

Nimisila
Creek
is
described
by
Ohio
EPA
River
Code:
17­
538,
USEPA
River
Reach
#:
05040001­
NA,
County:
Stark,
Ecoregion:
Erie­
Ontario
Lake
Plain.
Nimisila
Creek
is
presently
designated
for
the
following
uses:
Warmwater
Habitat
(
WWH),
Agricultural
Water
Supply
(
AWS),
Industrial
Water
Supply
(
IWS),
Primary
Contact
Recreation
(
PCR).

Rettig
Ditch
(
Ohio
EPA
River
Code
17­
488)
and
the
unnamed
tributaries
of
Zimber
Ditch
and
Willowdale
Lake
are
not
presently
designated
in
the
Ohio
Water
Quality
Standards
(
OAC
3745­
1­
24).
The
minimum
criteria
to
be
met
by
undesignated
waters
are
those
associated
with
the
Warmwater
Habitat
use.

The
location
of
the
facility
is
shown
in
Figure
1.

Facility
and
Discharge
Description
Akron­
Canton
Regional
Airport
is
a
commercial
airport
serving
primarily
passengers
in
the
local
area.
Akron­
Canton
has
a
flight
schedule
of
approx.
36
departures
and
36
arrivals
on
a
daily
basis.
During
the
deicing
season,
approx.
36
planes
are
deiced
on
a
daily
basis.

Akron­
Canton
Airport
discharges
storm
water
runoff
and
groundwater
flow
to
the
receiving
water
listed
above.
The
storm
water
discharges
from
the
Airport
can
contain
de­
icing
compounds
used
on
aircraft
and
runways.
The
de­
icing
compounds
used
on
aircraft
are
typically
ethylene
glycol
and
propylene
glycol;
the
primary
runway
de­
icing
compounds
used
are
acetates
and
urea.
Urea
and
the
glycol
compounds
are
toxic
to
aquatic
life
when
water
concentrations
are
sufficiently
high,
and
Ohio
EPA
has
calculated
water
quality
criteria
for
the
glycol
compounds.
Ammonia­
nitrogen
water
quality
standards
are
used
to
assess
the
potential
toxic
impact
of
urea
discharges.
All
of
the
chemicals
mentioned
above
also
consume
dissolved
oxygen
in
waterbodies,
which
may
impact
aquatic
life.
Akron­
Canton
Airport
Fact
Sheet
Page
4
The
Airport
prepared
a
Storm
Water
Pollution
Prevention
Plan
for
the
facility
in
1999,
updating
it
on
a
continual
basis
and
recently
submitted
an
update
to
the
plan
on
February
14,
2002.
The
main
area
where
aircraft
de­
icing
occurs
is
in
the
terminal
area,
which
drains
to
outfall
003.
Small
amounts
of
aircraft
deicing
occurs
in
the
drainage
areas
for
outfalls
002,
011
and
013.

Fueling
of
aircraft
or
ground
vehicles
may
occur
in
the
drainage
areas
of
outfalls
002,
003,
010­
013.
Potential
discharge
pollutants
related
to
these
outfalls
are
benzene,
toluene,
ethylbenzene,
xylenes,
naphthalene
and
1,2,4­
trimethylbenzene.
These
are
all
trace
contaminants
in
jet
and
motor
fuels.

Runoff
from
runways
can
affect
any
of
the
Airport's
outfalls.
These
discharges
may
contain
urea,
acetates
and/
or
formates
used
to
de­
ice
runways,
as
well
as
residual
glycols
that
may
shear
from
aircraft
during
take­
off.
Oils
and
elevated
levels
of
dissolved
solids
can
also
be
potentially
discharged
from
these
outfalls.

Receiving
Water
Quality
/
Environmental
Hazard
Assessment
The
Ohio
EPA
has
not
conducted
any
recent
biological
surveys
of
these
receiving
waters.

Development
of
Water
Quality
Based
Effluent
Limits
Effluent
limits
were
evaluated
for
those
pollutants
associated
with
storm
water
runoff
from
airports.
These
include
oxygen
demanding
substances,
glycol
compounds
and
ammonia.

The
allocations
for
pollutants
with
toxic
potential
(
glycols
and
ammonia)
were
done
by
applying
the
water
quality
standards
at
the
discharge
points.
The
water
quality
standards
for
ammonia­
nitrogen
were
developed
directly
from
the
Ohio
Water
Quality
Standards
(
OAC
3745­
1­
07),
using
the
temperature
and
pH
values
shown
in
Table
2.
The
water
quality
criteria
for
ethylene
glycol
and
propylene
glycol
were
developed
using
the
aquatic
criteria
development
procedures
in
the
WQS
(
OAC
3745­
1­
36).
The
water
quality
criteria
for
these
pollutants
are
listed
in
Table1.

These
standards
were
applied
as
end­
of­
pipe
limits
because
many
of
the
receiving
waters
originate
on
the
Airport
property,
or
have
very
limited
drainage
areas
upstream
of
the
airport.
Criteria
to
protect
warmwater
aquatic
life
were
used
because
these
criteria
are
the
default
criteria
for
undesignated
waters.

Effluent
Limits/
Hazard
Management
Decisions
The
draft
permit
contains
effluent
limits
for
those
pollutants
that
are
likely
to
be
present
in
significant
concentrations,
based
on
historic
sampling
by
NEDO,
and
Ohio
EPA's
experience
permitting
other
airport
runoff
discharges
in
the
state.
Limits
and
monitoring
for
pollutants
related
to
aircraft
de­
icing
(
glycols,
CBOD,
dissolved
oxygen)
are
included
for
outfalls
002.
003,
011,
012
and
013.
These
outfalls
are
the
ones
most
likely
to
have
aircraft
de­
icing
activities,
or
oxygen
demanding
pollutants
from
runway
de­
icing.
Most
of
the
outfalls
that
drain
runway
areas
have
limits
on
ammonia­
nitrogen
to
control
toxicity
from
urea
discharges.

Limits
proposed
for
dissolved
oxygen,
pH,
ammonia
and
glycols
are
based
on
Water
Quality
Standards
(
OAC
3745­
1).
A
compliance
schedule
is
included
in
the
permit
because
Akron­
Canton
probably
can
not
meet
the
limits
for
ammonia
and
glycols
at
this
time.
Akron­
Canton
Airport
Fact
Sheet
Page
5
Oxygen­
demand
modeling
has
not
been
conducted
for
the
discharges
from
Akron­
Canton
Airport.
Desktop
models
of
other
airport
discharges
to
small
streams
indicate
that
winter
CBOD5
concentrations
of
approximately
200
mg/
l
are
needed
to
maintain
uses.
This
is
based
on
desktop
and
detailed
modeling
of
discharges
from
the
Airborne
Express
Airpark
in
Wilmington,
Ohio
to
Lytle
Creek.

The
oil&
grease
limits
are
those
that
can
be
routinely
achieved
with
oil/
water
separators.
The
permit
does
not
contain
a
compliance
schedule
for
oi&
grease
because
Ohio
EPA
believes
that
Akron­
Canton
can
currently
meet
these
limits
based
on
one
test
result
submitted
by
the
Airport
and
several
visual
inspections
by
NEDO
which
did
not
observe
a
sheen.
Monitoring
for
oil&
grease
and
trace
fuel
contaminants
are
included
for
those
outfalls
that
have
fueling
activities
in
the
drainage
area
(
outfalls
002,
003,
009,
010,
011,
012
and
013).

Monitoring
is
not
being
required
for
outfalls
004,
005
and
007.
There
is
very
little
runway
area
drainage
in
these
areas,
and
significant
pollutant
concentrations
are
not
anticipated.
Monitoring
of
the
other
outfalls
is
considered
representative
of
the
discharge
from
these
outfalls.

Whole
Effluent
Toxicity
Reasonable
Potential
Whole
effluent
toxicity
or
"
WET"
is
the
total
toxic
effect
of
an
effluent
on
aquatic
life
measured
directly
with
a
toxicity
test.
Acute
WET
measures
short
term
effects
of
the
effluent
while
chronic
WET
measures
longer
term
and
potentially
more
subtle
effects
of
the
effluent.

Due
to
the
well­
known
list
of
chemical
constituents
in
airport
runoff,
Ohio
EPA
is
not
recommending
toxicity
testing
of
the
outfalls
at
this
time.
Chemical­
specific
limits
should
be
adequate
to
prevent
toxic
discharges.
Akron­
Canton
Airport
Fact
Sheet
Page
6
Akron­
Canton
Airport
Fact
Sheet
Page
7
Figure
1.
Approximate
location
of
the
Akron­
Canton
Regional
Airport.
Akron­
Canton
Airport
Fact
Sheet
Page
8
Table
1.
Water
Quality
Criteria
in
the
Study
Area
Outside
Mixing
Zone
Criteria
Inside
Average
Maximum
Mixing
Human
Agri­
Aquatic
Aquatic
Zone
Parameter
Units
Health
culture
Life
Life
Maximum
All
receiving
waters
Ammonia­
N
mg/
l
Summer
­­
­­
1.1
9.1
­­
Winter
­­
­­
5.6
13.0
­­

Ethylene
Glycol
mg/
l
­­
B
140.
1300.
2600.
Propylene
Glycol
mg/
l
­­
B
71.
640.
1300.

Table
2.
Instream
Conditions
and
Discharger
Flow
Parameter
Units
Value
Basis
All
receiving
waters
Instream
Temperature
oC
summer
23
BWQR*
(
Muskingum
Basin
75th
%
ile)
winter
4.5
BWQR*
(
Muskingum
Basin
75th
%
ile)

Instream
pH
S.
U.
summer
8.0
BWQR*
(
Muskingum
Basin
75th
%
ile)
winter
7.7
STORET;
7
values,
1997­
2001
*
BWQR
=
OEPA's
Background
Water
Quality
Report
(
Analysis
of
Unimpacted
Stream
Data
for
the
state
of
Ohio)
Akron­
Canton
Airport
Fact
Sheet
Page
9
Table
3.
Final
effluent
limits
and
monitoring
requirements
for
Akron­
Canton
Airport
outfall
3IN00157002
and
the
basis
for
their
recommendation.

Effluent
Limits
Concentration
Loading
(
kg/
day)
a
30
Day
Daily
30
Day
Daily
Parameter
Units
Average
Maximum
Average
Maximum
Basisb
Flow
MGD
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Precipitation
inches
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Dissolved
Oxygen
mg/
l
B
5.0
min.
B
B
WQS
CBOD5
mg/
l
Summer
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Winter
200
B
B
B
WLA/
BPJ
COD
mg/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Dissolved
Solids
mg/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Suspended
Solids
mg/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Ammonia­
N
mg/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Oil
and
Grease
mg/
l
15
20
B
B
BPJ
pH
S.
U.
­
­
­
­
­
­
­
­
­
­
­
­
­
6.5
to
9.0
­
­
­
­
­
­
­
­
­
­
­
­
­
WQS
Benzene
µ
g/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Toluene
µ
g/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Ethylbenzene
µ
g/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Xylenes
µ
g/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
1,2,4­
Trimethyl­
benzene
µ
g/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Naphthalene
µ
g/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Ethylene
Glycol
µ
g/
l
140000
1300000
B
B
WQS
Propylene
Glycol
µ
g/
l
71000
640000
B
B
WQS
a
Effluent
loadings
based
on
average
design
discharge
flow
of
N/
A
MGD.

b
Definitions:
BPJ
=
Best
Professional
Judgment;
M
=
Monitoring;
PD
=
Plant
Design
Criteria;
RP
=
Reasonable
Potential
for
requiring
water
quality­
based
effluent
limits
and
monitoring
requirements
in
NPDES
permits
(
3745­
33­
07(
A));
WET
=
Whole
Effluent
Toxicity
(
OAC
3745­
33­
07(
B))
;
WLA
=
Wasteload
Allocation
procedures
(
OAC
3745­
2);
WQS
=
Ohio
Water
Quality
Standards
(
OAC
3745­
1).

c
Monitoring
of
flow
and
other
indicator
parameters
is
specified
to
assist
in
the
evaluation
of
effluent
quality
and
treatment
plant
performance.
Akron­
Canton
Airport
Fact
Sheet
Page
10
Table
4.
Final
effluent
limits
and
monitoring
requirements
for
Akron­
Canton
Airport
outfalls
3IN00157003
and
3IN00157011
and
the
basis
for
their
recommendation.

Effluent
Limits
Concentration
Loading
(
kg/
day)
a
30
Day
Daily
30
Day
Daily
Parameter
Units
Average
Maximum
Average
Maximum
Basisb
Flow
MGD
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Precipitation
inches
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Dissolved
Oxygen
mg/
l
B
5.0
min.
B
B
WQS
CBOD5
mg/
l
Summer
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Winter
200
B
B
B
WLA/
BPJ
COD
mg/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Dissolved
Solids
mg/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Suspended
Solids
mg/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Ammonia­
N
mg/
l
Summer
1.1
9.1
B
B
WQS
Winter
5.6
13
B
B
WQS
Oil
and
Grease
mg/
l
15
20
B
B
BPJ
pH
S.
U.
­
­
­
­
­
­
­
­
­
­
­
­
­
6.5
to
9.0
­
­
­
­
­
­
­
­
­
­
­
­
­
WQS
Benzene
µ
g/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Toluene
µ
g/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Ethylbenzene
µ
g/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Xylenes
µ
g/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
1,2,4­
Trimethyl­
benzene
µ
g/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Naphthalene
µ
g/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Ethylene
Glycol
µ
g/
l
140000
1300000
B
B
WQS
Propylene
Glycol
µ
g/
l
71000
640000
B
B
WQS
a
Effluent
loadings
based
on
average
design
discharge
flow
of
N/
A
MGD.

b
Definitions:
BPJ
=
Best
Professional
Judgment;
M
=
Monitoring;
PD
=
Plant
Design
Criteria;
RP
=
Reasonable
Potential
for
requiring
water
quality­
based
effluent
limits
and
monitoring
requirements
in
NPDES
permits
(
3745­
33­
07(
A));
WET
=
Whole
Effluent
Toxicity
(
OAC
3745­
33­
07(
B))
;
WLA
=
Wasteload
Allocation
procedures
(
OAC
3745­
2);
WQS
=
Ohio
Water
Quality
Standards
(
OAC
3745­
1).

c
Monitoring
of
flow
and
other
indicator
parameters
is
specified
to
assist
in
the
evaluation
of
effluent
quality
and
treatment
plant
performance.
Akron­
Canton
Airport
Fact
Sheet
Page
11
Table
5.
Final
effluent
limits
and
monitoring
requirements
for
Akron­
Canton
Airport
outfall
3IN00157006
and
the
basis
for
their
recommendation.

Effluent
Limits
Concentration
Loading
(
kg/
day)
a
30
Day
Daily
30
Day
Daily
Parameter
Units
Average
Maximum
Average
Maximum
Basisb
Flow
MGD
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Precipitation
inches
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Dissolved
Oxygen
mg/
l
B
5.0
min.
B
B
WQS
CBOD5
mg/
l
Summer
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Winter
200
B
B
B
WLA/
BPJ
COD
mg/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Dissolved
Solids
mg/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Ammonia­
N
mg/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Summer
1.1
9.1
B
B
WQS
Winter
5.6
13
B
B
WQS
pH
S.
U.
­
­
­
­
­
­
­
­
­
­
­
­
­
6.5
to
9.0
­
­
­
­
­
­
­
­
­
­
­
­
­
WQS
a
Effluent
loadings
based
on
average
design
discharge
flow
of
N/
A
MGD.

b
Definitions:
BPJ
=
Best
Professional
Judgment;
M
=
Monitoring;
PD
=
Plant
Design
Criteria;
RP
=
Reasonable
Potential
for
requiring
water
quality­
based
effluent
limits
and
monitoring
requirements
in
NPDES
permits
(
3745­
33­
07(
A));
WET
=
Whole
Effluent
Toxicity
(
OAC
3745­
33­
07(
B))
;
WLA
=
Wasteload
Allocation
procedures
(
OAC
3745­
2);
WQS
=
Ohio
Water
Quality
Standards
(
OAC
3745­
1).

c
Monitoring
of
flow
and
other
indicator
parameters
is
specified
to
assist
in
the
evaluation
of
effluent
quality
and
treatment
plant
performance.
Akron­
Canton
Airport
Fact
Sheet
Page
12
Table
6.
Final
effluent
limits
and
monitoring
requirements
for
Akron­
Canton
Airport
outfall
3IN00157008
and
the
basis
for
their
recommendation.

Effluent
Limits
Concentration
Loading
(
kg/
day)
a
30
Day
Daily
30
Day
Daily
Parameter
Units
Average
Maximum
Average
Maximum
Basisb
Flow
(
winter)
MGD
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Precipitation
inches
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
CBOD5
(
winter)
mg/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
COD
(
winter)
mg/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Ammonia­
N
(
winter)
mg/
l
5.6
13
B
B
WQS
Oil
and
Grease
(
win.)
mg/
l
15
20
B
B
BPJ
pH
(
winter)
S.
U.
­
­
­
­
­
­
­
­
­
­
­
­
­
6.5
to
9.0
­
­
­
­
­
­
­
­
­
­
­
­
­
WQS
a
Effluent
loadings
based
on
average
design
discharge
flow
of
N/
A
MGD.

b
Definitions:
BPJ
=
Best
Professional
Judgment;
M
=
Monitoring;
PD
=
Plant
Design
Criteria;
RP
=
Reasonable
Potential
for
requiring
water
quality­
based
effluent
limits
and
monitoring
requirements
in
NPDES
permits
(
3745­
33­
07(
A));
WET
=
Whole
Effluent
Toxicity
(
OAC
3745­
33­
07(
B))
;
WLA
=
Wasteload
Allocation
procedures
(
OAC
3745­
2);
WQS
=
Ohio
Water
Quality
Standards
(
OAC
3745­
1).

c
Monitoring
of
flow
and
other
indicator
parameters
is
specified
to
assist
in
the
evaluation
of
effluent
quality
and
treatment
plant
performance.
Akron­
Canton
Airport
Fact
Sheet
Page
13
Table
7.
Final
effluent
limits
and
monitoring
requirements
for
Akron­
Canton
Airport
outfalls
3IN00157009
and
3IN00157010
and
the
basis
for
their
recommendation.

Effluent
Limits
Concentration
Loading
(
kg/
day)
a
30
Day
Daily
30
Day
Daily
Parameter
Units
Average
Maximum
Average
Maximum
Basisb
Flow
MGD
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Precipitation
inches
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Oil
and
Grease
mg/
l
15
20
B
B
BPJ
pH
S.
U.
­
­
­
­
­
­
­
­
­
­
­
­
­
6.5
to
9.0
­
­
­
­
­
­
­
­
­
­
­
­
­
WQS
Benzene
µ
g/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Toluene
µ
g/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Ethylbenzene
µ
g/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Xylenes
µ
g/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
1,2,4­
Trimethyl­
benzene
µ
g/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Naphthalene
µ
g/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
a
Effluent
loadings
based
on
average
design
discharge
flow
of
N/
A
MGD.

b
Definitions:
BPJ
=
Best
Professional
Judgment;
M
=
Monitoring;
PD
=
Plant
Design
Criteria;
RP
=
Reasonable
Potential
for
requiring
water
quality­
based
effluent
limits
and
monitoring
requirements
in
NPDES
permits
(
3745­
33­
07(
A));
WET
=
Whole
Effluent
Toxicity
(
OAC
3745­
33­
07(
B))
;
WLA
=
Wasteload
Allocation
procedures
(
OAC
3745­
2);
WQS
=
Ohio
Water
Quality
Standards
(
OAC
3745­
1).

c
Monitoring
of
flow
and
other
indicator
parameters
is
specified
to
assist
in
the
evaluation
of
effluent
quality
and
treatment
plant
performance.
Akron­
Canton
Airport
Fact
Sheet
Page
14
Table
8.
Final
effluent
limits
and
monitoring
requirements
for
Akron­
Canton
Airport
outfall
3IN00157012
and
the
basis
for
their
recommendation.

Effluent
Limits
Concentration
Loading
(
kg/
day)
a
30
Day
Daily
30
Day
Daily
Parameter
Units
Average
Maximum
Average
Maximum
Basisb
Flow
MGD
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Precipitation
inches
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Dissolved
Oxygen
mg/
l
B
5.0
min.
B
B
WQS
CBOD5
mg/
l
Winter
200
B
B
B
WLA/
BPJ
COD
(
winter)
mg/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Ammonia­
N
mg/
l
Winter
5.6
13
B
B
WQS
Oil
and
Grease
mg/
l
15
20
B
B
BPJ
pH
S.
U.
­
­
­
­
­
­
­
­
­
­
­
­
­
6.5
to
9.0
­
­
­
­
­
­
­
­
­
­
­
­
­
WQS
Benzene
µ
g/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Toluene
µ
g/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Ethylbenzene
µ
g/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Xylenes
µ
g/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
1,2,4­
Trimethyl­
benzene
µ
g/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Naphthalene
µ
g/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Ethylene
Glycol
µ
g/
l
Winter
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Propylene
Glycol
µ
g/
l
Winter
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
a
Effluent
loadings
based
on
average
design
discharge
flow
of
N/
A
MGD.

b
Definitions:
BPJ
=
Best
Professional
Judgment;
M
=
Monitoring;
PD
=
Plant
Design
Criteria;
RP
=
Reasonable
Potential
for
requiring
water
quality­
based
effluent
limits
and
monitoring
requirements
in
NPDES
permits
(
3745­
33­
07(
A));
WET
=
Whole
Effluent
Toxicity
(
OAC
3745­
33­
07(
B))
;
WLA
=
Wasteload
Allocation
procedures
(
OAC
3745­
2);
WQS
=
Ohio
Water
Quality
Standards
(
OAC
3745­
1).

c
Monitoring
of
flow
and
other
indicator
parameters
is
specified
to
assist
in
the
evaluation
of
effluent
quality
and
treatment
plant
performance.
Akron­
Canton
Airport
Fact
Sheet
Page
15
Table
9.
Final
effluent
limits
and
monitoring
requirements
for
Akron­
Canton
Airport
outfall
3IN00157013
and
the
basis
for
their
recommendation.

Effluent
Limits
Concentration
Loading
(
kg/
day)
a
30
Day
Daily
30
Day
Daily
Parameter
Units
Average
Maximum
Average
Maximum
Basisb
Flow
MGD
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Precipitation
inches
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Dissolved
Oxygen
mg/
l
B
5.0
min.
B
B
WQS
CBOD5
mg/
l
Summer
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Winter
200
B
B
B
WLA/
BPJ
COD
mg/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Dissolved
Solids
mg/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Suspended
Solids
mg/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Ammonia­
N
mg/
l
Winter
5.6
13
B
B
WQS
Oil
and
Grease
mg/
l
15
20
B
B
BPJ
pH
S.
U.
­
­
­
­
­
­
­
­
­
­
­
­
­
6.5
to
9.0
­
­
­
­
­
­
­
­
­
­
­
­
­
WQS
Benzene
µ
g/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Toluene
µ
g/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Ethylbenzene
µ
g/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Xylenes
µ
g/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
1,2,4­
Trimethyl­
benzene
µ
g/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Naphthalene
µ
g/
l
­
­
­
­
­
­
­
­
­
­
­
­
Monitor
­
­
­
­
­
­
­
­
­
­
­
­
­
­
­
Mc
Ethylene
Glycol
µ
g/
l
140000
1300000
B
B
WQS
Propylene
Glycol
µ
g/
l
71000
640000
B
B
WQS
a
Effluent
loadings
based
on
average
design
discharge
flow
of
N/
A
MGD.

b
Definitions:
BPJ
=
Best
Professional
Judgment;
M
=
Monitoring;
PD
=
Plant
Design
Criteria;
RP
=
Reasonable
Potential
for
requiring
water
quality­
based
effluent
limits
and
monitoring
requirements
in
NPDES
permits
(
3745­
33­
07(
A));
WET
=
Whole
Effluent
Toxicity
(
OAC
3745­
33­
07(
B))
;
WLA
=
Wasteload
Allocation
procedures
(
OAC
3745­
2);
WQS
=
Ohio
Water
Quality
Standards
(
OAC
3745­
1).

c
Monitoring
of
flow
and
other
indicator
parameters
is
specified
to
assist
in
the
evaluation
of
effluent
quality
and
treatment
plant
performance.