335­
6­
10­.
09
335­
6­
10­.
09
Specific
Water
Quality
Criteria.

(
1)
OUTSTANDING
ALABAMA
WATER
(
a)
Best
usage
of
waters:
activities
consistent
with
the
natural
characteristics
of
the
waters.

(
b)
Conditions
related
to
best
usage:

1.
High
quality
waters
that
constitute
an
outstanding
Alabama
resource,
such
as
waters
of
state
parks
and
wildlife
refuges
and
waters
of
exceptional
recreational
or
ecological
significance,
may
be
considered
for
classification
as
an
Outstanding
Alabama
Water
(
OAW).

(
c)
Specific
criteria:

1.
Sewage,
industrial
wastes,
or
other
wastes:

(
i)
Existing
point
source
discharges
to
an
Outstanding
Alabama
Water
shall
be
allowed;
however,
within
three
years
of
assignment
of
the
OAW
classification
or
at
permit
renewal,
whichever
is
later,
existing
point
sources
shall
be
required
to
meet
the
effluent
limitations
specified
for
new
point
source
discharges
in
subparagraph
(
ii)
hereof.

(
ii)
New
point
source
discharges
or
expansions
of
existing
point
source
discharges
shall
not
be
allowed
unless
a
thorough
evaluation
of
all
practicable
treatment
and
disposal
alternatives
by
the
permit
applicant
has
demonstrated
to
the
satisfaction
of
the
Department
that
there
is
no
feasible
alternative
to
discharge
to
the
waters
classified
OAW.
At
a
minimum,
domestic
wastewater
discharges
shall
be
required
to
meet
monthly
average
effluent
limitations
of
15
mg/
l
biochemical
oxygen
demand
(
5­
day),
3
mg/
l
ammonia
nitrogen,
and
6
mg/
l
dissolved
oxygen,
and
shall
be
required
to
provide
disinfection
of
the
effluent.
Non­
domestic
wastewater
discharges
shall
be
required
to
provide
a
comparably
stringent
level
of
treatment
as
determined
by
the
Department.

(
iii)
Effluent
limitations
for
new
point
source
discharges
or
expansions
of
existing
point
source
discharges
to
waters
upstream
of,
or
tributary
to,
waters
classified
OAW
shall
be
established
by
the
Department
such
that
the
impact
of
the
discharge
within
the
waters
classified
OAW
is
no
greater
than
if
the
discharge
occurred
at
the
OAW
boundary
at
the
treatment
levels
specified
in
subparagraph
(
ii)
hereof.

(
iv)
All
NPDES
permits
shall
contain
toxics
limits
that
will
ensure
compliance
with
all
applicable
water
quality
standards.
Such
limits
shall
be
acute
and
chronic
toxicity
limits
for
individual
toxic
substances,
whole
effluent
toxicity
limits,
or
both.
For
permittees
subject
to
whole
effluent
toxicity
limitations,
both
acute
and
chronic
testing
will
be
required.
Whole
effluent
acute
toxicity
will
be
demonstrated
if
the
effluent
causes
more
than
10
percent
mortality
of
test
organisms
when
tested
at
an
effluent
concentration
of
100
335­
6­
10­.
09
percent.
For
permittees
whose
discharge
will
result
in
an
in­
stream
waste
concentration
of
10
percent
or
more,
whole
effluent
chronic
toxicity
limits
will
be
based
on
an
in­
stream
concentration
of
100
percent;
for
permittees
whose
discharge
will
result
in
an
in­
stream
waste
concentration
of
less
than
10
percent,
whole
effluent
chronic
toxicity
limits
will
be
based
on
the
in­
stream
waste
concentration.

(
v)
Nonpoint
source
discharges
shall
use
best
management
practices
adequate
to
protect
water
quality
consistent
with
the
Department's
nonpoint
source
control
program.

(
vi)
All
NPDES
permits
and
nonpoint
sources
shall
incorporate
or
employ
water
pollution
prevention
or
waste
reduction
measures
as
established
by
the
Department.

2.
pH:
sewage,
industrial
wastes
or
other
wastes
shall
not
cause
the
pH
to
deviate
more
than
one
unit
from
the
normal
or
natural
pH,
nor
be
less
than
6.0,
nor
greater
than
8.5.
For
salt
waters
and
estuarine
waters
to
which
this
classification
is
assigned,
wastes
as
herein
described
shall
not
cause
the
pH
to
deviate
more
than
one
unit
from
the
normal
or
natural
pH,
nor
be
less
than
6.5,
nor
greater
than
8.5.

3.
Temperature:

(
i)
The
maximum
temperature
in
streams,
lakes,
and
reservoirs,
other
than
those
in
river
basins
listed
in
subparagraph
(
ii)
hereof,
shall
not
exceed
90
°
F.

(
ii)
The
maximum
temperature
in
streams,
lakes,
and
reservoirs
in
the
Tennessee
and
Cahaba
River
Basins,
and
for
that
portion
of
the
Tallapoosa
River
Basin
from
the
tailrace
of
Thurlow
Dam
at
Tallassee
downstream
to
the
junction
of
the
Coosa
and
Tallapoosa
Rivers
which
has
been
classified
by
the
Alabama
Department
of
Conservation
and
Natural
Resources
as
supporting
smallmouth
bass,
sauger,
or
walleye,
shall
not
exceed
86
°
F.

(
iii)
The
maximum
in­
stream
temperature
rise
above
ambient
water
temperature
due
to
the
addition
of
artificial
heat
by
a
discharger
shall
not
exceed
5
°
F
in
streams,
lakes,
and
reservoirs
in
non­
coastal
and
non­
estuarine
areas.

(
iv)
The
maximum
in­
stream
temperature
rise
above
ambient
water
temperature
due
to
the
addition
of
artificial
heat
by
a
discharger
shall
not
exceed
4
°
F
in
coastal
or
estuarine
waters
during
the
period
October
through
May,
nor
shall
the
rise
exceed
1.5
°
F
during
the
period
June
through
September.

(
v)
In
lakes
and
reservoirs
there
shall
be
no
withdrawal
from,
nor
discharge
of
heated
waters
to,
the
hypolimnion
unless
it
can
be
shown
that
such
discharge
or
withdrawal
will
be
beneficial
to
water
quality.
335­
6­
10­.
09
(
vi)
In
all
waters
the
normal
daily
and
seasonal
temperature
variations
that
were
present
before
the
addition
of
artificial
heat
shall
be
maintained,
and
there
shall
be
no
thermal
block
to
the
migration
of
aquatic
organisms.

(
vii)
Thermal
permit
limitations
in
NPDES
permits
may
be
less
stringent
than
those
required
by
subparagraphs
(
i)­(
iv)
hereof
when
a
showing
by
the
discharger
has
been
made
pursuant
to
Section
316
of
the
Federal
Water
Pollution
Control
Act
(
FWPCA),
33
U.
S.
C.
§
1251
et
seq.
or
pursuant
to
a
study
of
an
equal
or
more
stringent
nature
required
by
the
State
of
Alabama
authorized
by
Title
22,
Section
22­
22­
9(
c),
Code
of
Alabama
1975,
that
such
limitations
will
assure
the
protection
and
propagation
of
a
balanced,
indigenous
population
of
shellfish,
fish
and
wildlife,
in
and
on
the
body
of
water
to
which
the
discharge
is
made.
Any
such
demonstration
shall
take
into
account
the
interaction
of
the
thermal
discharge
component
with
other
pollutants
discharged.

4.
Dissolved
oxygen:

(
i)
For
a
diversified
warm
water
biota,
including
game
fish,
daily
dissolved
oxygen
concentrations
shall
not
be
less
than
5.5
mg/
l
at
all
times;
except
under
extreme
conditions
due
to
natural
causes,
it
may
range
between
5.5
mg/
l
and
4
mg/
l,
provided
that
the
water
quality
is
favorable
in
all
other
parameters.
The
normal
seasonal
and
daily
fluctuations
shall
be
maintained
above
these
levels.
In
no
event
shall
the
dissolved
oxygen
level
be
less
than
4
mg/
l
due
to
hydroelectric
turbine
discharges
from
existing
hydroelectric
generation
impoundments.
All
new
hydroelectric
generation
impoundments,
including
addition
of
new
hydroelectric
generation
units
to
existing
impoundments,
shall
be
designed
so
that
the
discharge
will
contain
at
least
5.5
mg/
l
dissolved
oxygen
where
practicable
and
technologically
possible.
The
Environmental
Protection
Agency,
in
cooperation
with
the
State
of
Alabama
and
parties
responsible
for
impoundments,
shall
develop
a
program
to
improve
the
design
of
existing
facilities.

(
ii)
In
coastal
waters,
surface
dissolved
oxygen
concentrations
shall
not
be
less
than
5.5
mg/
l,
except
where
natural
phenomena
cause
the
value
to
be
depressed.

(
iii)
In
estuaries
and
tidal
tributaries,
dissolved
oxygen
concentrations
shall
not
be
less
than
5.5
mg/
l,
except
in
dystrophic
waters
or
where
natural
conditions
cause
the
value
to
be
depressed.

(
iv)
In
the
application
of
dissolved
oxygen
criteria
referred
to
above,
dissolved
oxygen
shall
be
measured
at
a
depth
of
5
feet
in
waters
10
feet
or
greater
in
depth;
and
for
those
waters
less
than
10
feet
in
depth,
dissolved
oxygen
criteria
will
be
applied
at
mid­
depth.

5.
Toxic
substances
attributable
to
sewage,
industrial
wastes,
or
other
wastes:
only
such
amounts,
whether
alone
or
in
combination
with
335­
6­
10­.
09
other
substances,
as
will
not
exhibit
acute
toxicity
or
chronic
toxicity,
as
demonstrated
by
effluent
toxicity
testing
or
by
application
of
numeric
criteria
given
in
Rule
335­
6­
10­.
07,
to
fish
and
aquatic
life,
including
shrimp
and
crabs
in
estuarine
or
salt
waters
or
the
propagation
thereof.

6.
Taste,
odor,
and
color­
producing
substances
attributable
to
sewage,
industrial
wastes,
or
other
wastes:
only
such
amounts,
whether
alone
or
in
combination
with
other
substances,
as
will
not
exhibit
acute
toxicity
or
chronic
toxicity,
as
demonstrated
by
effluent
toxicity
testing
or
by
application
of
numeric
criteria
given
in
Rule
335­
6­
10­.
07,
to
fish
and
aquatic
life,
including
shrimp
and
crabs
in
estuarine
and
salt
waters
or
adversely
affect
the
propagation
thereof;
impair
the
palatability
or
marketability
of
fish
and
wildlife
or
shrimp
and
crabs
in
estuarine
and
salt
waters;
or
unreasonably
affect
the
aesthetic
value
of
waters
for
any
use
under
this
classification.

7.
Bacteria:
in
non­
coastal
waters,
bacteria
of
the
fecal
coliform
group
shall
not
exceed
a
geometric
mean
of
200
colonies/
100
ml.
In
coastal
waters,
bacteria
of
the
enterococci
group
shall
not
exceed
a
geometric
mean
of
35
colonies/
100
ml
nor
exceed
a
maximum
of
104
colonies/
100
ml
in
any
sample.
The
geometric
mean
shall
be
calculated
from
no
less
than
five
samples
collected
at
a
given
station
over
a
30­
day
period
at
intervals
not
less
than
24
hours.

8.
Radioactivity:
the
concentrations
of
radioactive
materials
present
shall
not
exceed
the
requirements
of
the
State
Department
of
Public
Health.

9.
Turbidity:
there
shall
be
no
turbidity
of
other
than
natural
origin
that
will
cause
substantial
visible
contrast
with
the
natural
appearance
of
waters
or
interfere
with
any
beneficial
uses
which
they
serve.
Furthermore,
in
no
case
shall
turbidity
exceed
50
Nephelometric
units
above
background.
Background
will
be
interpreted
as
the
natural
condition
of
the
receiving
waters
without
the
influence
of
man­
made
or
man­
induced
causes.
Turbidity
levels
caused
by
natural
runoff
will
be
included
in
establishing
background
levels.

(
2)
PUBLIC
WATER
SUPPLY
(
a)
Best
usage
of
waters:
source
of
water
supply
for
drinking
or
food­
processing
purposes. 

(
b)
Conditions
related
to
best
usage:
the
waters,
if
subjected
to
treatment
approved
by
the
Department
equal
to
coagulation,
sedimentation,
filtration
and
disinfection,
with
additional
treatment
if
necessary
to
remove
naturally
present
impurities,
and
which
meet
the
requirements
of
the
Department,
will
be
considered
safe
for
drinking
or
food­
processing
purposes.

 
NOTE:
In
determining
the
safety
or
suitability
of
waters
for
use
as
sources
of
water
supply
for
drinking
or
food­
processing
purposes
after
approved
treatment,
the
Commission
will
be
guided
by
the
physical
and
chemical
standards
specified
by
the
Department.
335­
6­
10­.
09
(
c)
Other
usage
of
waters:
it
is
recognized
that
the
waters
may
be
used
for
incidental
water
contact
and
recreation
during
June
through
September,
except
that
water
contact
is
strongly
discouraged
in
the
vicinity
of
discharges
or
other
conditions
beyond
the
control
of
the
Department
or
the
Alabama
Department
of
Public
Health.

(
d)
Conditions
related
to
other
usage:
the
waters,
under
proper
sanitary
supervision
by
the
controlling
health
authorities,
will
meet
accepted
standards
of
water
quality
for
outdoor
swimming
places
and
will
be
considered
satisfactory
for
swimming
and
other
whole
body
water­
contact
sports.

(
e)
Specific
criteria:

1.
Sewage,
industrial
wastes,
or
other
wastes:
none
which
are
not
effectively
treated
or
controlled
in
accordance
with
Rule
335­
6­
10­.
08.

2.
pH:
sewage,
industrial
wastes
or
other
wastes
shall
not
cause
the
pH
to
deviate
more
than
one
unit
from
the
normal
or
natural
pH,
nor
be
less
than
6.0,
nor
greater
than
8.5.

3.
Temperature:

(
i)
The
maximum
temperature
in
streams,
lakes,
and
reservoirs,
other
than
those
in
river
basins
listed
in
subparagraph
(
ii)
hereof,
shall
not
exceed
90
°
F.

(
ii)
The
maximum
temperature
in
streams,
lakes,
and
reservoirs
in
the
Tennessee
and
Cahaba
River
Basins,
and
for
that
portion
of
the
Tallapoosa
River
Basin
from
the
tailrace
of
Thurlow
Dam
at
Tallassee
downstream
to
the
junction
of
the
Coosa
and
Tallapoosa
Rivers
which
has
been
designated
by
the
Alabama
Department
of
Conservation
and
Natural
Resources
as
supporting
smallmouth
bass,
sauger,
or
walleye,
shall
not
exceed
86
°
F.

(
iii)
The
maximum
in­
stream
temperature
rise
above
ambient
water
temperature
due
to
the
addition
of
artificial
heat
by
a
discharger
shall
not
exceed
5
°
F
in
streams,
lakes,
and
reservoirs
in
non­
coastal
and
non­
estuarine
areas.

(
iv)
The
maximum
in­
stream
temperature
rise
above
ambient
water
temperature
due
to
the
addition
of
artificial
heat
by
a
discharger
shall
not
exceed
4
°
F
in
coastal
or
estuarine
waters
during
the
period
October
through
May,
nor
shall
the
rise
exceed
1.5
°
F
during
the
period
June
through
September.

(
v)
In
lakes
and
reservoirs
there
shall
be
no
withdrawal
from,
nor
discharge
of
heated
waters
to,
the
hypolimnion
unless
it
can
be
shown
that
such
discharge
or
withdrawal
will
be
beneficial
to
water
quality.
335­
6­
10­.
09
(
vi)
In
all
waters
the
normal
daily
and
seasonal
temperature
variations
that
were
present
before
the
addition
of
artificial
heat
shall
be
maintained,
and
there
shall
be
no
thermal
block
to
the
migration
of
aquatic
organisms.

(
vii)
Thermal
permit
limitations
in
NPDES
permits
may
be
less
stringent
than
those
required
by
subparagraphs
(
i)
­
(
iv)
hereof
when
a
showing
by
the
discharger
has
been
made
pursuant
to
Section
316
of
the
Federal
Water
Pollution
Control
Act
(
FWPCA),
33
U.
S.
C.
§
1251
et
seq.
or
pursuant
to
a
study
of
an
equal
or
more
stringent
nature
required
by
the
State
of
Alabama
authorized
by
Title
22,
Section
22­
22­
9(
c),
Code
of
Alabama,
1975,
that
such
limitations
will
assure
the
protection
and
propagation
of
a
balanced,
indigenous
population
of
shellfish,
fish
and
wildlife,
in
and
on
the
body
of
water
to
which
the
discharge
is
made.
Any
such
demonstration
shall
take
into
account
the
interaction
of
the
thermal
discharge
component
with
other
pollutants
discharged.

4.
Dissolved
oxygen:

(
i)
For
a
diversified
warm
water
biota,
including
game
fish,
daily
dissolved
oxygen
concentrations
shall
not
be
less
than
5
mg/
l
at
all
times;
except
under
extreme
conditions
due
to
natural
causes,
it
may
range
between
5
mg/
l
and
4
mg/
l,
provided
that
the
water
quality
is
favorable
in
all
other
parameters.
The
normal
seasonal
and
daily
fluctuations
shall
be
maintained
above
these
levels.
In
no
event
shall
the
dissolved
oxygen
level
be
less
than
4
mg/
l
due
to
discharges
from
existing
hydroelectric
generation
impoundments.
All
new
hydroelectric
generation
impoundments,
including
addition
of
new
hydroelectric
generation
units
to
existing
impoundments,
shall
be
designed
so
that
the
discharge
will
contain
at
least
5
mg/
l
dissolved
oxygen
where
practicable
and
technologically
possible.
The
Environmental
Protection
Agency,
in
cooperation
with
the
State
of
Alabama
and
parties
responsible
for
impoundments,
shall
develop
a
program
to
improve
the
design
of
existing
facilities.

(
ii)
In
coastal
waters,
surface
dissolved
oxygen
concentrations
shall
not
be
less
than
5
mg/
l,
except
where
natural
phenomena
cause
the
value
to
be
depressed.

(
iii)
In
estuaries
and
tidal
tributaries,
dissolved
oxygen
concentrations
shall
not
be
less
than
5
mg/
l,
except
in
dystrophic
waters
or
where
natural
conditions
cause
the
value
to
be
depressed.

(
iv)
In
the
application
of
dissolved
oxygen
criteria
referred
to
above,
dissolved
oxygen
shall
be
measured
at
a
depth
of
5
feet
in
waters
10
feet
or
greater
in
depth;
and
for
those
waters
less
than
10
feet
in
depth,
dissolved
oxygen
criteria
will
be
applied
at
mid­
depth.

5.
Toxic
substances;
color
producing;
heated
liquids;
or
other
deleterious
substances
attributable
to
sewage,
industrial
wastes,
or
other
wastes:
only
such
amounts,
whether
alone
or
in
combination
with
other
substances,
and
only
such
temperatures
as
will
not
render
the
waters
unsafe
or
335­
6­
10­.
09
unsuitable
as
a
source
of
water
supply
for
drinking
or
food­
processing
purposes,
or
exhibit
acute
toxicity
or
chronic
toxicity,
as
demonstrated
by
effluent
toxicity
testing
or
by
application
of
numeric
criteria
given
in
Rule
335­
6­
10­.
07,
to
fish,
wildlife
and
aquatic
life,
or
adversely
affect
the
aesthetic
value
of
waters
for
any
use
under
this
classification.

6.
Taste
and
odor
producing
substances
attributable
to
sewage,
industrial
wastes,
or
other
wastes:
only
such
amounts,
whether
alone
or
in
combination
with
other
substances
or
wastes,
as
will
not
cause
taste
and
odor
difficulties
in
water
supplies
which
cannot
be
corrected
by
treatment
as
specified
under
subparagraph
(
b),
or
impair
the
palatability
of
fish.

7.
Bacteria:

(
i)
In
non­
coastal
waters,
bacteria
of
the
fecal
coliform
group
shall
not
exceed
a
geometric
mean
of
1,000
colonies/
100
ml;
nor
exceed
a
maximum
of
2,000
colonies/
100
ml
in
any
sample.
The
geometric
mean
shall
be
calculated
from
no
less
than
five
samples
collected
at
a
given
station
over
a
30­
day
period
at
intervals
not
less
than
24
hours.
In
coastal
waters,
bacteria
of
the
enterococci
group
shall
not
exceed
a
maximum
of
275
colonies/
100
ml
in
any
sample.
(
ii)
For
incidental
water
contact
and
recreation
during
June
through
September,
the
bacterial
quality
of
water
is
acceptable
when
a
sanitary
survey
by
the
controlling
health
authorities
reveals
no
source
of
dangerous
pollution
and
when
the
geometric
mean
fecal
coliform
organism
density
does
not
exceed
200
colonies/
100
ml
in
non­
coastal
waters.
In
coastal
waters,
bacteria
of
the
enterococci
group
shall
not
exceed
a
geometric
mean
of
35
colonies/
100
ml
nor
exceed
a
maximum
of
158
colonies/
100
ml
in
any
sample.
The
geometric
mean
shall
be
calculated
from
no
less
than
five
samples
collected
at
a
given
station
over
a
30­
day
period
at
intervals
not
less
than
24
hours.
When
the
geometric
mean
bacterial
organism
density
exceeds
these
levels,
the
bacterial
water
quality
shall
be
considered
acceptable
only
if
a
second
detailed
sanitary
survey
and
evaluation
discloses
no
significant
public
health
risk
in
the
use
of
the
waters.
Waters
in
the
immediate
vicinity
of
discharges
of
sewage
or
other
wastes
likely
to
contain
bacteria
harmful
to
humans,
regardless
of
the
degree
of
treatment
afforded
these
wastes,
are
not
acceptable
for
swimming
or
other
whole
body
water­
contact
sports.

8.
Radioactivity:
no
radionuclide
or
mixture
of
radionuclides
shall
be
present
at
concentrations
greater
than
those
specified
by
the
requirements
of
the
State
Department
of
Public
Health.

9.
Turbidity:
there
shall
be
no
turbidity
of
other
than
natural
origin
that
will
cause
substantial
visible
contrast
with
the
natural
appearance
of
waters
or
interfere
with
any
beneficial
uses
which
they
serve.
Furthermore,
in
no
case
shall
turbidity
exceed
50
Nephelometric
units
above
background.
Background
will
be
interpreted
as
the
natural
condition
of
the
receiving
waters,
without
the
influence
of
man­
made
or
man­
induced
causes.
Turbidity
levels
caused
by
natural
runoff
will
be
included
in
establishing
background
levels.
335­
6­
10­.
09
(
3)
SWIMMING
AND
OTHER
WHOLE
BODY
WATER­
CONTACT
SPORTS
(
a)
Best
usage
of
waters:
swimming
and
other
whole
body
water­
contact
sports. 

(
b)
Conditions
related
to
best
usage:
the
waters,
under
proper
sanitary
supervision
by
the
controlling
health
authorities,
will
meet
accepted
standards
of
water
quality
for
outdoor
swimming
places
and
will
be
considered
satisfactory
for
swimming
and
other
whole
body
water­
contact
sports.
The
quality
of
waters
will
also
be
suitable
for
the
propagation
of
fish,
wildlife
and
aquatic
life.
The
quality
of
salt
waters
and
estuarine
waters
to
which
this
classification
is
assigned
will
be
suitable
for
the
propagation
and
harvesting
of
shrimp
and
crabs.

(
c)
Specific
criteria:

1.
Sewage,
industrial
wastes,
or
other
wastes:
none
which
are
not
effectively
treated
or
controlled
in
accordance
with
Rule
335­
6­
10­.
08.

2.
pH:
sewage,
industrial
wastes
or
other
wastes
shall
not
cause
the
pH
to
deviate
more
than
one
unit
from
the
normal
or
natural
pH,
nor
be
less
than
6.0,
nor
greater
than
8.5.
For
estuarine
waters
and
salt
waters
to
which
this
classification
is
assigned,
wastes
as
described
herein
shall
not
cause
the
pH
to
deviate
more
than
one
unit
from
the
normal
or
natural
pH,
nor
be
less
than
6.5,
nor
greater
than
8.5.

3.
Temperature:

(
i)
The
maximum
temperature
in
streams,
lakes,
and
reservoirs,
other
than
those
in
river
basins
listed
in
subparagraph
(
ii)
hereof,
shall
not
exceed
90
°
F.

(
ii)
The
maximum
temperature
in
streams,
lakes,
and
reservoirs
in
the
Tennessee
and
Cahaba
River
Basins,
and
for
that
portion
of
the
Tallapoosa
River
Basin
from
the
tailrace
of
Thurlow
Dam
at
Tallassee
downstream
to
the
junction
of
the
Coosa
and
Tallapoosa
Rivers
which
has
been
designated
by
the
Alabama
Department
of
Conservation
and
Natural
Resources
as
supporting
smallmouth
bass,
sauger,
or
walleye,
shall
not
exceed
86
°
F.

 
NOTE:
In
assigning
this
classification
to
waters
intended
for
swimming
and
water­
contact
sports,
the
Commission
will
take
into
consideration
the
relative
proximity
of
discharges
of
wastes
and
will
recognize
the
potential
hazards
involved
in
locating
swimming
areas
close
to
waste
discharges.
The
Commission
will
not
assign
this
classification
to
waters,
the
bacterial
quality
of
which
is
dependent
upon
adequate
disinfection
of
waste
and
where
the
interruption
of
such
treatment
would
render
the
water
unsafe
for
bathing.
335­
6­
10­.
09
(
iii)
The
maximum
in­
stream
temperature
rise
above
ambient
water
temperature
due
to
the
addition
of
artificial
heat
by
a
discharger
shall
not
exceed
5
°
F
in
streams,
lakes,
and
reservoirs
in
non­
coastal
and
non­
estuarine
areas.

(
iv)
The
maximum
in­
stream
temperature
rise
above
ambient
water
temperature
due
to
the
addition
of
artificial
heat
by
a
discharger
shall
not
exceed
4
°
F
in
coastal
or
estuarine
waters
during
the
period
October
through
May,
nor
shall
the
rise
exceed
1.5
°
F
during
the
period
June
through
September.

(
v)
In
lakes
and
reservoirs
there
shall
be
no
withdrawal
from,
nor
discharge
of
heated
waters
to,
the
hypolimnion
unless
it
can
be
shown
that
such
discharge
or
withdrawal
will
be
beneficial
to
water
quality.

(
vi)
In
all
waters
the
normal
daily
and
seasonal
temperature
variations
that
were
present
before
the
addition
of
artificial
heat
shall
be
maintained,
and
there
shall
be
no
thermal
block
to
the
migration
of
aquatic
organisms.

(
vii)
Thermal
permit
limitations
in
NPDES
permits
may
be
less
stringent
than
those
required
by
subparagraphs
(
i)­(
iv)
hereof
when
a
showing
by
the
discharger
has
been
made
pursuant
to
Section
316
of
the
Federal
Water
Pollution
Control
Act
(
FWPCA),
33
U.
S.
C.
§
1251
et
seq.
or
pursuant
to
a
study
of
an
equal
or
more
stringent
nature
required
by
the
State
of
Alabama
authorized
by
Title
22,
Section
22­
22­
9(
c),
Code
of
Alabama,
1975,
that
such
limitations
will
assure
the
protection
and
propagation
of
a
balanced,
indigenous
population
of
shellfish,
fish
and
wildlife,
in
and
on
the
body
of
water
to
which
the
discharge
is
made.
Any
such
demonstration
shall
take
into
account
the
interaction
of
the
thermal
discharge
component
with
other
pollutants
discharged.

4.
Dissolved
oxygen:

(
i)
For
a
diversified
warm
water
biota,
including
game
fish,
daily
dissolved
oxygen
concentrations
shall
not
be
less
than
5
mg/
l
at
all
times;
except
under
extreme
conditions
due
to
natural
causes,
it
may
range
between
5
mg/
l
and
4
mg/
l,
provided
that
the
water
quality
is
favorable
in
all
other
parameters.
The
normal
seasonal
and
daily
fluctuations
shall
be
maintained
above
these
levels.
In
no
event
shall
the
dissolved
oxygen
level
be
less
than
4
mg/
l
due
to
discharges
from
existing
hydroelectric
generation
impoundments.
All
new
hydroelectric
generation
impoundments,
including
addition
of
new
hydroelectric
generation
units
to
existing
impoundments,
shall
be
designed
so
that
the
discharge
will
contain
at
least
5
mg/
l
dissolved
oxygen
where
practicable
and
technologically
possible.
The
Environmental
Protection
Agency,
in
cooperation
with
the
State
of
Alabama
and
parties
responsible
for
impoundments,
shall
develop
a
program
to
improve
the
design
of
existing
facilities.
335­
6­
10­.
09
(
ii)
In
coastal
waters,
surface
dissolved
oxygen
concentrations
shall
not
be
less
than
5
mg/
l,
except
where
natural
phenomena
cause
the
value
to
be
depressed.

(
iii)
In
estuaries
and
tidal
tributaries,
dissolved
oxygen
concentrations
shall
not
be
less
than
5
mg/
l,
except
in
dystrophic
waters
or
where
natural
conditions
cause
the
value
to
be
depressed.

(
iv)
In
the
application
of
dissolved
oxygen
criteria
referred
to
above,
dissolved
oxygen
shall
be
measured
at
a
depth
of
5
feet
in
waters
10
feet
or
greater
in
depth;
and
for
those
waters
less
than
10
feet
in
depth,
dissolved
oxygen
criteria
will
be
applied
at
mid­
depth.

5.
Toxic
substances;
color
producing
substances;
odor
producing
substances;
or
other
deleterious
substances
attributable
to
sewage,
industrial
wastes,
or
other
wastes:
only
such
amounts,
whether
alone
or
in
combination
with
other
substances
or
wastes,
as
will
not
render
the
water
unsafe
or
unsuitable
for
swimming
and
water­
contact
sports;
exhibit
acute
toxicity
or
chronic
toxicity,
as
demonstrated
by
effluent
toxicity
testing
or
by
application
of
numeric
criteria
given
in
Rule
335­
6­
10­.
07,
to
fish,
wildlife,
and
aquatic
life
or,
where
applicable,
shrimp
and
crabs;
impair
the
palatability
of
fish,
or
where
applicable,
shrimp
and
crabs;
impair
the
waters
for
any
other
usage
established
for
this
classification
or
unreasonably
affect
the
aesthetic
value
of
waters
for
any
use
under
this
classification.

6.
Bacteria:

(
i)
Waters
in
the
immediate
vicinity
of
discharges
of
sewage
or
other
wastes
likely
to
contain
bacteria
harmful
to
humans,
regardless
of
the
degree
of
treatment
afforded
these
wastes 
,
are
not
acceptable
for
swimming
or
other
whole
body
water­
contact
sports.

(
ii)
In
all
other
areas,
the
bacterial
quality
of
water
is
acceptable
when
a
sanitary
survey
by
the
controlling
health
authorities
reveals
no
source
of
dangerous
pollution
and
when
the
geometric
mean
fecal
coliform
organism
density
does
not
exceed
200
colonies/
100
ml
in
non­
coastal
waters.
In
coastal
waters,
bacteria
of
the
enterococci
group
shall
not
exceed
a
geometric
mean
of
35
colonies/
100
ml
nor
exceed
a
maximum
of
104
colonies/
100
ml
in
any
sample.
The
geometric
mean
shall
be
calculated
from
no
less
than
five
samples
collected
at
a
given
station
over
a
30­
day
period
at
intervals
not
less
than
24
hours.
When
the
geometric
mean
bacterial
organism
density
exceeds
these
levels,
the
bacterial
water
quality
shall
be
considered
acceptable
only
if
a
 
NOTE:
In
assigning
this
classification
to
waters
intended
for
swimming
and
water­
contact
sports,
the
Commission
will
take
into
consideration
the
relative
proximity
of
discharges
of
wastes
and
will
recognize
the
potential
hazards
involved
in
locating
swimming
areas
close
to
waste
discharges.
The
Commission
will
not
assign
this
classification
to
waters,
the
bacterial
quality
of
which
is
dependent
upon
adequate
disinfection
of
waste
and
where
the
interruption
of
such
treatment
would
render
the
water
unsafe
for
bathing.
335­
6­
10­.
09
second
detailed
sanitary
survey
and
evaluation
discloses
no
significant
public
health
risk
in
the
use
of
the
waters.

(
iii)
The
policy
of
nondegradation
of
high
quality
waters
shall
be
stringently
applied
to
bacterial
quality
of
recreational
waters.

7.
Radioactivity:
the
concentrations
of
radioactive
materials
present
shall
not
exceed
the
requirement
of
the
State
Department
of
Public
Health.

8.
Turbidity:
there
shall
be
no
turbidity
of
other
than
natural
origin
that
will
cause
substantial
visible
contrast
with
the
natural
appearance
of
waters
or
interfere
with
any
beneficial
uses
which
they
serve.
Furthermore,
in
no
case
shall
turbidity
exceed
50
Nephelometric
units
above
background.
Background
will
be
interpreted
as
the
natural
condition
of
the
receiving
waters,
without
the
influence
of
man­
made
or
man­
induced
causes.
Turbidity
levels
caused
by
natural
runoff
will
be
included
in
establishing
background
levels.

(
4)
SHELLFISH
HARVESTING
(
a)
Best
usage
of
waters:
propagation
and
harvesting
of
shellfish
for
sale
or
use
as
a
food
product.

(
b)
Conditions
related
to
best
usage:
waters
will
meet
the
sanitary
and
bacteriological
standards
included
in
the
National
Shellfish
Sanitation
Program
Model
Ordinance,
1999,
Chapter
IV,
published
by
the
Food
and
Drug
Administration,
U.
S.
Department
of
Health
and
Human
Services
and
the
requirements
of
the
State
Department
of
Public
Health.
The
waters
will
also
be
of
a
quality
suitable
for
the
propagation
of
fish
and
other
aquatic
life,
including
shrimp
and
crabs.

(
c)
Other
usage
of
waters:
it
is
recognized
that
the
waters
may
be
used
for
incidental
water
contact
and
recreation
during
June
through
September,
except
that
water
contact
is
strongly
discouraged
in
the
vicinity
of
discharges
or
other
conditions
beyond
the
control
of
the
Department
or
the
Alabama
Department
of
Public
Health.

(
d)
Conditions
related
to
other
usage:
the
waters,
under
proper
sanitary
supervision
by
the
controlling
health
authorities,
will
meet
accepted
standards
of
water
quality
for
outdoor
swimming
places
and
will
be
considered
satisfactory
for
swimming
and
other
whole
body
water­
contact
sports.

(
e)
Specific
criteria:

1.
Sewage,
industrial
wastes,
or
other
wastes:
none
which
are
not
effectively
treated
in
accordance
with
Rule
335­
6­
10­.
08.

2.
pH:
sewage,
industrial
wastes
or
other
wastes
shall
not
cause
the
pH
to
deviate
more
than
one
unit
from
the
normal
or
natural
pH,
nor
be
less
than
6.5,
nor
greater
than
8.5.
335­
6­
10­.
09
3.
Temperature:

(
i)
The
maximum
temperature
in
streams,
lakes,
and
reservoirs,
other
than
those
in
river
basins
listed
in
subparagraph
(
ii)
hereof,
shall
not
exceed
90
°
F.

(
ii)
The
maximum
temperature
in
streams,
lakes,
and
reservoirs
in
the
Tennessee
and
Cahaba
River
Basins,
and
for
that
portion
of
the
Tallapoosa
River
Basin
from
the
tailrace
of
Thurlow
Dam
at
Tallassee
downstream
to
the
junction
of
the
Coosa
and
Tallapoosa
Rivers
which
has
been
designated
by
the
Alabama
Department
of
Conservation
and
Natural
Resources
as
supporting
smallmouth
bass,
sauger,
or
walleye,
shall
not
exceed
86
°
F.

(
iii)
The
maximum
in­
stream
temperature
rise
above
ambient
water
temperature
due
to
the
addition
of
artificial
heat
by
a
discharger
shall
not
exceed
5
°
F
in
streams,
lakes,
and
reservoirs
in
non­
coastal
and
non­
estuarine
areas.

(
iv)
The
maximum
in­
stream
temperature
rise
above
ambient
water
temperature
due
to
the
addition
of
artificial
heat
by
a
discharger
shall
not
exceed
4
°
F
in
coastal
or
estuarine
waters
during
the
period
October
through
May,
nor
shall
the
rise
exceed
1.5
°
F
during
the
period
June
through
September.

(
v)
In
lakes
and
reservoirs
there
shall
be
no
withdrawal
from,
nor
discharge
of
heated
waters
to,
the
hypolimnion
unless
it
can
be
shown
that
such
discharge
or
withdrawal
will
be
beneficial
to
water
quality.

(
vi)
In
all
waters
the
normal
daily
and
seasonal
temperature
variations
that
were
present
before
the
addition
of
artificial
heat
shall
be
maintained,
and
there
shall
be
no
thermal
block
to
the
migration
of
aquatic
organisms.

(
vii)
Thermal
permit
limitations
in
NPDES
permits
may
be
less
stringent
than
those
required
by
subparagraphs
(
i)­(
iv)
hereof
when
a
showing
by
the
discharger
has
been
made
pursuant
to
Section
316
of
the
Federal
Water
Pollution
Control
Act
(
FWPCA),
33
U.
S.
C.
§
1251
et
seq.
or
pursuant
to
a
study
of
an
equal
or
more
stringent
nature
required
by
the
State
of
Alabama
authorized
by
Title
22,
Section
22­
22­
9(
c),
Code
of
Alabama,
1975,
that
such
limitations
will
assure
the
protection
and
propagation
of
a
balanced,
indigenous
population
of
shellfish,
fish
and
wildlife,
in
and
on
the
body
of
water
to
which
the
discharge
is
made.
Any
such
demonstration
shall
take
into
account
the
interaction
of
the
thermal
discharge
component
with
other
pollutants
discharged.

4.
Dissolved
oxygen:
335­
6­
10­.
09
(
i)
For
a
diversified
warm
water
biota,
including
game
fish,
daily
dissolved
oxygen
concentrations
shall
not
be
less
than
5
mg/
l
at
all
times;
except
under
extreme
conditions
due
to
natural
causes,
it
may
range
between
5
mg/
l
and
4
mg/
l,
provided
that
the
water
quality
is
favorable
in
all
other
parameters.
The
normal
seasonal
and
daily
fluctuations
shall
be
maintained
above
these
levels.
In
no
event
shall
the
dissolved
oxygen
level
be
less
than
4
mg/
l
due
to
discharges
from
existing
hydroelectric
generation
impoundments.
All
new
hydroelectric
generation
impoundments,
including
addition
of
new
hydroelectric
generation
units
to
existing
impoundments,
shall
be
designed
so
that
the
discharge
will
contain
at
least
5
mg/
l
dissolved
oxygen
where
practicable
and
technologically
possible.
The
Environmental
Protection
Agency,
in
cooperation
with
the
State
of
Alabama
and
parties
responsible
for
impoundments,
shall
develop
a
program
to
improve
the
design
of
existing
facilities.

(
ii)
In
coastal
waters,
surface
dissolved
oxygen
concentrations
shall
not
be
less
than
5
mg/
l,
except
where
natural
phenomena
cause
the
value
to
be
depressed.

(
iii)
In
estuaries
and
tidal
tributaries,
dissolved
oxygen
concentrations
shall
not
be
less
than
5
mg/
l,
except
in
dystrophic
waters
or
where
natural
conditions
cause
the
value
to
be
depressed.

(
iv)
In
the
application
of
dissolved
oxygen
criteria
referred
to
above,
dissolved
oxygen
shall
be
measured
at
a
depth
of
5
feet
in
waters
10
feet
or
greater
in
depth;
and
for
those
waters
less
than
10
feet
in
depth,
dissolved
oxygen
criteria
will
be
applied
at
mid­
depth.

5.
Toxic
substances
attributable
to
sewage,
industrial
wastes,
or
other
wastes:
only
such
amounts,
whether
alone
or
in
combination
with
other
substances,
as
will
not
exhibit
acute
toxicity
or
chronic
toxicity,
as
demonstrated
by
effluent
toxicity
testing
or
by
application
of
numeric
criteria
given
in
Rule
335­
6­
10­.
07,
to
fish
and
aquatic
life,
including
shrimp
and
crabs;
or
affect
the
marketability
of
fish
and
shellfish,
including
shrimp
and
crabs.

6.
Color,
taste,
and
odor­
producing
substances
and
other
deleterious
substances
attributable
to
sewage,
industrial
wastes,
or
other
wastes:
only
such
amounts,
whether
alone
or
in
combination
with
other
substances,
as
will
not
exhibit
acute
toxicity
or
chronic
toxicity,
as
demonstrated
by
effluent
toxicity
testing
or
by
application
of
numeric
criteria
given
in
Rule
335­
6­
10­.
07,
to
fish
and
shellfish,
including
shrimp
and
crabs;
adversely
affect
marketability
or
palatability
of
fish
and
shellfish,
including
shrimp
and
crabs;
or
unreasonably
affect
the
aesthetic
value
of
waters
for
any
use
under
this
classification.

7.
Bacteria:

(
i)
Not
to
exceed
the
limits
specified
in
the
latest
edition
of
the
National
Shellfish
Sanitation
Program
Manual
of
Operations,
Sanitation
of
335­
6­
10­.
09
Shellfish
Growing
Areas
(
1965),
published
by
the
Food
and
Drug
Administration,
U.
S.
Department
of
Health
and
Human
Services.

(
ii)
For
incidental
water
contact
and
recreation
during
June
through
September,
the
bacterial
quality
of
water
is
acceptable
when
a
sanitary
survey
by
the
controlling
health
authorities
reveals
no
source
of
dangerous
pollution
and
when
the
geometric
mean
fecal
coliform
organism
density
does
not
exceed
200
colonies/
100
ml
in
non­
coastal
waters.
In
coastal
waters,
bacteria
of
the
enterococci
group
shall
not
exceed
a
geometric
mean
of
35
colonies/
100
ml
nor
exceed
a
maximum
of
104
colonies/
100
ml
in
any
sample.
The
geometric
mean
shall
be
calculated
from
no
less
than
five
samples
collected
at
a
given
station
over
a
30­
day
period
at
intervals
not
less
than
24
hours.
When
the
geometric
mean
bacterial
organism
density
exceeds
these
levels,
the
bacterial
water
quality
shall
be
considered
acceptable
only
if
a
second
detailed
sanitary
survey
and
evaluation
discloses
no
significant
public
health
risk
in
the
use
of
the
waters.
Waters
in
the
immediate
vicinity
of
discharges
of
sewage
or
other
wastes
likely
to
contain
bacteria
harmful
to
humans,
regardless
of
the
degree
of
treatment
afforded
these
wastes,
are
not
acceptable
for
swimming
or
other
whole
body
water­
contact
sports.

8.
Radioactivity:
the
concentrations
of
radioactive
materials
present
shall
not
exceed
the
requirements
of
the
State
Department
of
Public
Health.

9.
Turbidity:
there
shall
be
no
turbidity
of
other
than
natural
origin
that
will
cause
substantial
visible
contrast
with
the
natural
appearance
of
waters
or
interfere
with
any
beneficial
uses
which
they
serve.
Furthermore,
in
no
case
shall
turbidity
exceed
50
Nephelometric
units
above
background.
Background
will
be
interpreted
as
the
natural
condition
of
the
receiving
waters
without
the
influence
of
man­
made
or
man­
induced
causes.
Turbidity
levels
caused
by
natural
runoff
will
be
included
in
establishing
background
levels.

(
5)
FISH
AND
WILDLIFE
(
a)
Best
usage
of
waters:
fishing,
propagation
of
fish,
aquatic
life,
and
wildlife,
and
any
other
usage
except
for
swimming
and
water­
contact
sports
or
as
a
source
of
water
supply
for
drinking
or
food­
processing
purposes.

(
b)
Conditions
related
to
best
usage:
the
waters
will
be
suitable
for
fish,
aquatic
life
and
wildlife
propagation.
The
quality
of
salt
and
estuarine
waters
to
which
this
classification
is
assigned
will
also
be
suitable
for
the
propagation
of
shrimp
and
crabs.

(
c)
Other
usage
of
waters:
it
is
recognized
that
the
waters
may
be
used
for
incidental
water
contact
and
recreation
during
June
through
September,
except
that
water
contact
is
strongly
discouraged
in
the
vicinity
of
discharges
or
other
conditions
beyond
the
control
of
the
Department
or
the
Alabama
Department
of
Public
Health.
335­
6­
10­.
09
(
d)
Conditions
related
to
other
usage:
the
waters,
under
proper
sanitary
supervision
by
the
controlling
health
authorities,
will
meet
accepted
standards
of
water
quality
for
outdoor
swimming
places
and
will
be
considered
satisfactory
for
swimming
and
other
whole
body
water­
contact
sports.

(
e)
Specific
criteria:

1.
Sewage,
industrial
wastes,
or
other
wastes:
none
which
are
not
effectively
treated
in
accordance
with
Rule
335­
6­
10­.
08.

2.
pH:
sewage,
industrial
wastes
or
other
wastes
shall
not
cause
the
pH
to
deviate
more
than
one
unit
from
the
normal
or
natural
pH,
nor
be
less
than
6.0,
nor
greater
than
8.5.
For
salt
waters
and
estuarine
waters
to
which
this
classification
is
assigned,
wastes
as
herein
described
shall
not
cause
the
pH
to
deviate
more
than
one
unit
from
the
normal
or
natural
pH,
nor
be
less
than
6.5,
nor
greater
than
8.5.

3.
Temperature:

(
i)
The
maximum
temperature
in
streams,
lakes,
and
reservoirs,
other
than
those
in
river
basins
listed
in
subparagraph
(
ii)
hereof,
shall
not
exceed
90
°
F.

(
ii)
The
maximum
temperature
in
streams,
lakes,
and
reservoirs
in
the
Tennessee
and
Cahaba
River
Basins,
and
for
that
portion
of
the
Tallapoosa
River
Basin
from
the
tailrace
of
Thurlow
Dam
at
Tallassee
downstream
to
the
junction
of
the
Coosa
and
Tallapoosa
Rivers
which
has
been
designated
by
the
Alabama
Department
of
Conservation
and
Natural
Resources
as
supporting
smallmouth
bass,
sauger,
or
walleye,
shall
not
exceed
86
°
F.

(
iii)
The
maximum
in­
stream
temperature
rise
above
ambient
water
temperature
due
to
the
addition
of
artificial
heat
by
a
discharger
shall
not
exceed
5
°
F
in
streams,
lakes,
and
reservoirs
in
non­
coastal
and
non­
estuarine
areas.

(
iv)
The
maximum
in­
stream
temperature
rise
above
ambient
water
temperature
due
to
the
addition
of
artificial
heat
by
a
discharger
shall
not
exceed
4
°
F
in
coastal
or
estuarine
waters
during
the
period
October
through
May,
nor
shall
the
rise
exceed
1.5
°
F
during
the
period
June
through
September.

(
v)
In
lakes
and
reservoirs
there
shall
be
no
withdrawal
from,
nor
discharge
of
heated
waters
to,
the
hypolimnion
unless
it
can
be
shown
that
such
discharge
or
withdrawal
will
be
beneficial
to
water
quality.

(
vi)
In
all
waters
the
normal
daily
and
seasonal
temperature
variations
that
were
present
before
the
addition
of
artificial
heat
shall
be
maintained,
and
there
shall
be
no
thermal
block
to
the
migration
of
aquatic
organisms.
335­
6­
10­.
09
(
vii)
Thermal
permit
limitations
in
NPDES
permits
may
be
less
stringent
than
those
required
by
subparagraphs
(
i)­(
iv)
hereof
when
a
showing
by
the
discharger
has
been
made
pursuant
to
Section
316
of
the
Federal
Water
Pollution
Control
Act
(
FWPCA),
33
U.
S.
C.
§
1251
et
seq.
or
pursuant
to
a
study
of
an
equal
or
more
stringent
nature
required
by
the
State
of
Alabama
authorized
by
Title
22,
Section
22­
22­
9(
c),
Code
of
Alabama,
1975,
that
such
limitations
will
assure
the
protection
and
propagation
of
a
balanced,
indigenous
population
of
shellfish,
fish
and
wildlife,
in
and
on
the
body
of
water
to
which
the
discharge
is
made.
Any
such
demonstration
shall
take
into
account
the
interaction
of
the
thermal
discharge
component
with
other
pollutants
discharged.

4.
Dissolved
oxygen:

(
i)
For
a
diversified
warm
water
biota,
including
game
fish,
daily
dissolved
oxygen
concentrations
shall
not
be
less
than
5
mg/
l
at
all
times;
except
under
extreme
conditions
due
to
natural
causes,
it
may
range
between
5
mg/
l
and
4
mg/
l,
provided
that
the
water
quality
is
favorable
in
all
other
parameters.
The
normal
seasonal
and
daily
fluctuations
shall
be
maintained
above
these
levels.
In
no
event
shall
the
dissolved
oxygen
level
be
less
than
4
mg/
l
due
to
discharges
from
existing
hydroelectric
generation
impoundments.
All
new
hydroelectric
generation
impoundments,
including
addition
of
new
hydroelectric
generation
units
to
existing
impoundments,
shall
be
designed
so
that
the
discharge
will
contain
at
least
5
mg/
l
dissolved
oxygen
where
practicable
and
technologically
possible.
The
Environmental
Protection
Agency,
in
cooperation
with
the
State
of
Alabama
and
parties
responsible
for
impoundments,
shall
develop
a
program
to
improve
the
design
of
existing
facilities.

(
ii)
In
coastal
waters,
surface
dissolved
oxygen
concentrations
shall
not
be
less
than
5
mg/
l,
except
where
natural
phenomena
cause
the
value
to
be
depressed.

(
iii)
In
estuaries
and
tidal
tributaries,
dissolved
oxygen
concentrations
shall
not
be
less
than
5
mg/
l,
except
in
dystrophic
waters
or
where
natural
conditions
cause
the
value
to
be
depressed.

(
iv)
In
the
application
of
dissolved
oxygen
criteria
referred
to
above,
dissolved
oxygen
shall
be
measured
at
a
depth
of
5
feet
in
waters
10
feet
or
greater
in
depth;
and
for
those
waters
less
than
10
feet
in
depth,
dissolved
oxygen
criteria
will
be
applied
at
mid­
depth.

5.
Toxic
substances
attributable
to
sewage,
industrial
wastes,
or
other
wastes:
only
such
amounts,
whether
alone
or
in
combination
with
other
substances,
as
will
not
exhibit
acute
toxicity
or
chronic
toxicity,
as
demonstrated
by
effluent
toxicity
testing
or
by
application
of
numeric
criteria
given
in
Rule
335­
6­
10­.
07,
to
fish
and
aquatic
life,
including
shrimp
and
crabs
in
estuarine
or
salt
waters
or
the
propagation
thereof.
335­
6­
10­.
09
6.
Taste,
odor,
and
color­
producing
substances
attributable
to
sewage,
industrial
wastes,
or
other
wastes:
only
such
amounts,
whether
alone
or
in
combination
with
other
substances,
as
will
not
exhibit
acute
toxicity
or
chronic
toxicity,
as
demonstrated
by
effluent
toxicity
testing
or
by
application
of
numeric
criteria
given
in
Rule
335­
6­
10­.
07,
to
fish
and
aquatic
life,
including
shrimp
and
crabs
in
estuarine
and
salt
waters
or
adversely
affect
the
propagation
thereof;
impair
the
palatability
or
marketability
of
fish
and
wildlife
or
shrimp
and
crabs
in
estuarine
and
salt
waters;
or
unreasonably
affect
the
aesthetic
value
of
waters
for
any
use
under
this
classification.

7.
Bacteria:

(
i)
In
non­
coastal
waters,
bacteria
of
the
fecal
coliform
group
shall
not
exceed
a
geometric
mean
of
1,000
colonies/
100
ml;
nor
exceed
a
maximum
of
2,000
colonies/
100
ml
in
any
sample.
In
coastal
waters,
bacteria
of
the
enterococci
group
shall
not
exceed
a
maximum
of
275
colonies/
100
ml
in
any
sample.
The
geometric
mean
shall
be
calculated
from
no
less
than
five
samples
collected
at
a
given
station
over
a
30­
day
period
at
intervals
not
less
than
24
hours.

(
ii)
For
incidental
water
contact
and
recreation
during
June
through
September,
the
bacterial
quality
of
water
is
acceptable
when
a
sanitary
survey
by
the
controlling
health
authorities
reveals
no
source
of
dangerous
pollution
and
when
the
geometric
mean
fecal
coliform
organism
density
does
not
exceed
200
colonies/
100
ml
in
non­
coastal
waters.
In
coastal
waters,
bacteria
of
the
enterococci
group
shall
not
exceed
a
geometric
mean
of
35
colonies/
100
ml
nor
exceed
a
maximum
of
158
colonies/
100
ml
in
any
sample.
The
geometric
mean
shall
be
calculated
from
no
less
than
five
samples
collected
at
a
given
station
over
a
30­
day
period
at
intervals
not
less
than
24
hours.
When
the
geometric
bacterial
coliform
organism
density
exceeds
these
levels,
the
bacterial
water
quality
shall
be
considered
acceptable
only
if
a
second
detailed
sanitary
survey
and
evaluation
discloses
no
significant
public
health
risk
in
the
use
of
the
waters.
Waters
in
the
immediate
vicinity
of
discharges
of
sewage
or
other
wastes
likely
to
contain
bacteria
harmful
to
humans,
regardless
of
the
degree
of
treatment
afforded
these
wastes,
are
not
acceptable
for
swimming
or
other
whole
body
water­
contact
sports.

8.
Radioactivity:
the
concentrations
of
radioactive
materials
present
shall
not
exceed
the
requirements
of
the
State
Department
of
Public
Health.

9.
Turbidity:
there
shall
be
no
turbidity
of
other
than
natural
origin
that
will
cause
substantial
visible
contrast
with
the
natural
appearance
of
waters
or
interfere
with
any
beneficial
uses
which
they
serve.
Furthermore,
in
no
case
shall
turbidity
exceed
50
Nephelometric
units
above
background.
Background
will
be
interpreted
as
the
natural
condition
of
the
receiving
waters
without
the
influence
of
man­
made
or
man­
induced
causes.
Turbidity
levels
caused
by
natural
runoff
will
be
included
in
establishing
background
levels.

(
6)
LIMITED
WARMWATER
FISHERY
335­
6­
10­.
09
(
a)
The
provisions
of
the
Fish
and
Wildlife
water
use
classification
at
Rule
335­
6­
10­.
09(
5)
shall
apply
to
the
Limited
Warmwater
Fishery
water
use
classification,
except
as
noted
below.
Unless
alternative
criteria
for
a
given
parameter
are
provided
in
paragraph
(
e)
below,
the
applicable
Fish
and
Wildlife
criteria
at
paragraph
10­.
09(
5)(
e)
shall
apply
yearround
At
the
time
the
Department
proposes
to
assign
the
Limited
Warmwater
Fishery
classification
to
a
specific
waterbody,
the
Department
may
apply
criteria
from
other
classifications
within
this
chapter
if
necessary
to
protect
a
documented,
legitimate
existing
use.

(
b)
Best
usage
of
waters
(
May
through
November):
agricultural
irrigation,
livestock
watering,
industrial
cooling
and
process
water
supplies,
and
any
other
usage,
except
fishing,
bathing,
recreational
activities,
including
water­
contact
sports,
or
as
a
source
of
water
supply
for
drinking
or
foodprocessing
purposes.

(
c)
Conditions
related
to
best
usage
(
May
through
November):

1.
The
waters
will
be
suitable
for
agricultural
irrigation,
livestock
watering,
and
industrial
cooling
waters.
The
waters
will
be
usable
after
special
treatment,
as
may
be
needed
under
each
particular
circumstance,
for
industrial
process
water
supplies.
The
waters
will
also
be
suitable
for
other
uses
for
which
waters
of
lower
quality
will
be
satisfactory.

2.
This
category
includes
watercourses
in
which
natural
flow
is
intermittent,
or
under
certain
conditions
non­
existent,
and
which
may
receive
treated
wastes
from
existing
municipalities
and
industries.
In
such
instances,
recognition
is
given
to
the
lack
of
opportunity
for
mixture
of
the
treated
wastes
with
the
receiving
stream
for
purposes
of
compliance.
It
is
also
understood
in
considering
waters
for
this
classification
that
urban
runoff
or
natural
conditions
may
impact
any
waters
so
classified.

(
d)
Other
usage
of
waters:
none
recognized.

(
e)
Specific
criteria:

1.
Dissolved
oxygen
(
May
through
November):
treated
sewage,
industrial
wastes,
or
other
wastes
shall
not
cause
the
dissolved
oxygen
to
be
less
than
3.0
mg/
l.
In
the
application
of
dissolved
oxygen
criteria
referred
to
above,
dissolved
oxygen
shall
be
measured
at
a
depth
of
5
feet
in
waters
10
feet
or
greater
in
depth;
and
for
those
waters
less
than
10
feet
in
depth,
dissolved
oxygen
criteria
will
be
applied
at
mid­
depth.

2.
Toxic
substances
and
taste­,
odor­,
and
color­
producing
substances
attributable
to
treated
sewage,
industrial
wastes,
and
other
wastes:
only
such
amounts
as
will
not
render
the
waters
unsuitable
for
agricultural
irrigation,
livestock
watering,
industrial
cooling,
and
industrial
process
water
supply
purposes;
interfere
with
downstream
water
uses;
or
exhibit
acute
toxicity
or
chronic
toxicity,
as
demonstrated
by
effluent
toxicity
testing
or
by
335­
6­
10­.
09
application
of
numeric
criteria
given
in
Rule
335­
6­
10­.
07,
to
fish
and
aquatic
life,
including
shrimp
and
crabs
in
estuarine
or
salt
waters
or
the
propagation
thereof.
For
the
purpose
of
establishing
effluent
limitations
pursuant
to
Chapter
335­
6­
6
of
the
Department's
regulations,
the
minimum
7­
day
low
flow
that
occurs
once
in
2
years
(
7Q2)
shall
be
the
basis
for
applying
the
chronic
aquatic
life
criteria.
The
use
of
the
7Q2
low
flow
for
application
of
chronic
criteria
is
appropriate
based
on
the
historical
uses
and/
or
flow
characteristics
of
streams
to
be
considered
for
this
classification.

3.
Bacteria:
In
non­
coastal
waters,
bacteria
of
the
fecal
coliform
group
shall
not
exceed
a
geometric
mean
of
1,000
colonies/
100
ml;
nor
exceed
a
maximum
of
2,000
colonies/
100
ml
in
any
sample.
In
coastal
waters,
bacteria
of
the
enterococci
group
shall
not
exceed
a
maximum
of
275
colonies/
100
ml
in
any
sample.
The
geometric
mean
shall
be
calculated
from
no
less
than
five
samples
collected
at
a
given
station
over
a
30­
day
period
at
intervals
not
less
than
24
hours.

(
7)
AGRICULTURAL
AND
INDUSTRIAL
WATER
SUPPLY
(
a)
Best
usage
of
waters:
agricultural
irrigation,
livestock
watering,
industrial
cooling
and
process
water
supplies,
and
any
other
usage,
except
fishing,
bathing,
recreational
activities,
including
water­
contact
sports,
or
as
a
source
of
water
supply
for
drinking
or
food­
processing
purposes.

(
b)
Conditions
related
to
best
usage:

(
i)
The
waters,
except
for
natural
impurities
which
may
be
present
therein,
will
be
suitable
for
agricultural
irrigation,
livestock
watering,
industrial
cooling
waters,
and
fish
survival.
The
waters
will
be
usable
after
special
treatment,
as
may
be
needed
under
each
particular
circumstance,
for
industrial
process
water
supplies.
The
waters
will
also
be
suitable
for
other
uses
for
which
waters
of
lower
quality
will
be
satisfactory.

(
ii)
This
category
includes
watercourses
in
which
natural
flow
is
intermittent
and
non­
existent
during
droughts
and
which
may,
of
necessity,
receive
treated
wastes
from
existing
municipalities
and
industries,
both
now
and
in
the
future.
In
such
instances,
recognition
must
be
given
to
the
lack
of
opportunity
for
mixture
of
the
treated
wastes
with
the
receiving
stream
for
purposes
of
compliance.
It
is
also
understood
in
considering
waters
for
this
classification
that
urban
runoff
or
natural
conditions
may
impact
any
waters
so
classified.

(
c)
Specific
criteria:

1.
Sewage,
industrial
wastes,
or
other
wastes:
none
which
are
not
effectively
treated
or
controlled
in
accordance
with
Rule
335­
6­
10­.
08.

2.
pH:
sewage,
industrial
wastes
or
other
wastes
shall
not
cause
the
pH
to
deviate
more
than
one
unit
from
the
normal
or
natural
pH,
nor
be
less
than
6.0,
nor
greater
than
8.5.
For
salt
waters
and
estuarine
waters
to
335­
6­
10­.
09
which
this
classification
is
assigned,
wastes
as
herein
described
shall
not
cause
the
pH
to
deviate
more
than
one
unit
from
the
normal
or
natural
pH,
nor
be
less
than
6.5,
nor
greater
than
8.5.

3.
Temperature:
the
maximum
temperature
rise
above
natural
temperatures
due
to
the
addition
of
artificial
heat
shall
not
exceed
5
°
F
in
streams,
lakes,
and
reservoirs,
nor
shall
the
maximum
water
temperature
exceed
90
°
F.

4.
Dissolved
oxygen:
sewage,
industrial
wastes,
or
other
wastes
shall
not
cause
the
dissolved
oxygen
to
be
less
than
3.0
mg/
l.
In
the
application
of
dissolved
oxygen
criteria
referred
to
above,
dissolved
oxygen
shall
be
measured
at
a
depth
of
5
feet
in
waters
10
feet
or
greater
in
depth;
and
for
those
waters
less
than
10
feet
in
depth,
dissolved
oxygen
criteria
will
be
applied
at
mid­
depth.

5.
Color,
odor,
and
taste­
producing
substances,
toxic
substances,
and
other
deleterious
substances,
including
chemical
compounds
attributable
to
sewage,
industrial
wastes,
and
other
wastes:
only
such
amounts
as
will
not
render
the
waters
unsuitable
for
agricultural
irrigation,
livestock
watering,
industrial
cooling,
industrial
process
water
supply
purposes,
and
fish
survival,
nor
interfere
with
downstream
water
uses.

6.
Bacteria:
In
non­
coastal
waters,
bacteria
of
the
fecal
coliform
group
shall
not
exceed
a
geometric
mean
of
2,000
colonies/
100
ml;
nor
exceed
a
maximum
of
4,000
colonies/
100
ml
in
any
sample.
In
coastal
waters,
bacteria
of
the
enterococci
group
shall
not
exceed
a
maximum
of
500
colonies/
100
ml
in
any
sample.
The
geometric
mean
shall
be
calculated
from
no
less
than
five
samples
collected
at
a
given
station
over
a
30­
day
period
at
intervals
not
less
than
24
hours.

7.
Radioactivity:
the
concentrations
of
radioactive
materials
present
shall
not
exceed
the
requirements
of
the
State
Department
of
Public
Health.

8.
Turbidity:
there
shall
be
no
turbidity
of
other
than
natural
origin
that
will
cause
substantial
visible
contrast
with
the
natural
appearance
of
waters
or
interfere
with
any
beneficial
uses
which
they
serve.
Furthermore,
in
no
case
shall
turbidity
exceed
50
Nephelometric
units
above
background.
Background
will
be
interpreted
as
the
natural
condition
of
the
receiving
waters
without
the
influence
of
man­
made
or
man­
induced
causes.
Turbidity
levels
caused
by
natural
runoff
will
be
included
in
establishing
background
levels.
Author:
James
E.
McIndoe
Statutory
Authority:
Code
of
Alabama
1975,
§
§
22­
22­
9,
22­
22A­
5,
22­
22A­
6,
22­
22A­
8.
History:
May
5,
1967.
Amended:
June
19,
1967;
July
17,
1972;
February
26,
1973;
May
30,
1977;
December
19,
1977;
February
4,
1981;
March
2,
1990;
April
3,
1991;
December
30,
1992;
September
7,
2000.
