Ohio River

Valley Water Sanitation Commission

POLLUTION

CONTROL

STANDARDS

for discharges to the Ohio River

2000 Revision

Notice ofRequirements

You

are hereby notified that, having consid-

ered

all the evidence presented

at public

hearings,

the

Ohio

River

Valley

Water

Sanitation Commission,

at its

regularly

held

meeting on October

12,

2000,

acting

in

accordance

with

and

pursuant

to

the

authority contained in Article VI ofthe Ohio

River

Valley Water

Sanitation

Compact,

adopted

and

promulgated, subject to revision

as changing

conditions

require,

Pollution

Control

Standards

2000

Revision

for

the

modification ortreatment ofall sewage from

municipalities

or

other

political

subdivi-

sions,

public

or

private

institutions,

corporations or watercraft, and for the modi-

fication or

treatment

of all

industrial

wastes

discharged

or

permitted

to

flow

into

the

Ohio

River from the point of confluence of

the

Allegheny and

Monongahela

Rivers

at

Pittsburgh,

Pennsylvania,

designated

as

Ohio

River

mile

point

0.0

to

Cairo

Point,

Illinois,

located

at

the

confluence

of

the

Ohio

and

Mississippi

Rivers,

and

being

981.0

miles

downstream

from

Pittsburgh,

Pennsylvania.

Under the terms and provisions of the Ohio

River

Valley

Water

Sanitation

Compact,

all

sewage

from

municipalities

or

other

political

subdivisions,

public

or

private

institutions, cor-

orations or watercrafl and

all

industrial wastes

discharged or permitted to flow into the Ohio

River will be required to be modified or

treated

to the extent specified in the standards

estab-

ished as above set forth.

To the extent that

Pollution

Control Standards

(1997

Revision),

which were

established

by

Commission action

Januaiy

9,

1997,

have

been

amended

or

restated

by

virtue

of

Pollution

Control

Standards

2000,

the

Pollution

Control

Standards

1997

Revision,

including

any

defini-

tions

and

application procedures appended to or

incorporated therein, are rescinded.

Alan H. Vicory,

Jr.

Executive Director and ChiefEngineer

I.

---

TABLE

OF CONTENTS

I.

AUTHORITY AND PURPOSE

1

II.

DEFINITIONS

~

ifi.

DESIGNATED USES

5

IV.

WATER QUALITY CRITERIA

A.

General

B.

C.

Human Health Protection

~

D.

Site-Specific Criteria

~

11

V.

WASTE WATERDISCHARGE REQUIREMENTS

~..

...

..12

A.

General

B.

Sewage

~

12

C.

Industrial Wastes, Including Toxic Wastes

16

D.

Residues from Potable

Water Treatment Plants

16

E

Cooling Water

17

F.

Other Wastes

~-_~

17

VI

MIXING ZONE DESIGNATION

.~

J 7

VII.

L~TATION

VIII.

VARIANCE

18

IX.

ANALYTICAL

METHODS

X.

SEVERABILITY CLAUSE

19

APPENDIX

A

Acute

and

Chronic

Cntena Concentrations For

Combinations ofpH

and

Temperature

20

APPENDIX B:

Numerical

Values ofDissolved Metals Criteria at

Specified Hardness Levels

23

APPENDIX C:

Critical Flow Values

24

APPENDIXD:

Great Lakes Water Quality Initiative Methodologies

For Development ofAquatic Life Criteria

and

Values

Methodology for Deriving Aquatic Life Criteria

25

/i

~

Ohio River Valley Water Sanitation Commission

POLLUTION CONTROL

STANDARDS

for discharges to the OhiO River

2000 Revision

I.

AUTHORITY AND

PURPOSE

The

Ohio

River Valley Water

Sanitation

Compact

(the

Compact)

was

signed

in

1948

by

the

Governors of the States ofIllinois, Indiana, Kentucky, New York,

Ohio,

Pennsylvania,

Virginia,

and

West Virginia, following

the

consent of the United

States Congress

and

enactment of the

Compact

into

law

by the legislatures ofle

eight

states.

The

Compact

created the Ohio

River

Valley Water

Sanitation

Commission

(the

Commission)

as

a

body

corporate with powers

and

duties set

forth

in

it

for

the purpose of

abating

water

pollution

within the

Compact District.

Article I of the Compact mandates that all

waters

in

the District

be placed

and

maintained

in

a

satisfactory,

sanitary

condition,

available

for

certain

beneficial

uses.

It

is

the

mission of the

Commission

to

insure

protection of these uses

and

to preserve the waters for

other

legitimate

purposes.

The Compact

grants

the Commission authority to

carry

out its mission~

Article VI states that “the

guiding

principle

of

this

Compact

shall

be

that

pollution

by

sewage

or

industrial

wastes

originating

within

a

signatory

State shall not injuriously affect the

various

uses of the interstate

waters.”

Minimum

requirements

for

the

treatment of sewage

and

industrial

waste

then

are

established in Article VI, as well

as the authority ofthe, Commission to require

higher degrees

of

treatment where they

are

determined to be necessary after investigation,,due notice, an ci: hearing.

Article VI

concludes by authorizing the Commission

to “adopt, prescribe, and promulgate rules,

regulations and standards for administering

and

enforcing the provisions of

this

article.”

Article IX of

the

Compact

grants

the Commission authonty

to

issue orders,

after mvestigation

and hearing,

for

the

purpose

of achieving compliance with its

standards.

Aiy’cotirt

of general

jurisdiction

or

any

United

States

District

Court

in

the

signatory

states

may be

used

by the

Commission in order to enforce such orders.

1

---

It is the policy ofthe Commission to rely on the member

states

for the

primary

enforcement of its

standards.

Each of the member states is authorized to do so

under the legislation that enabled its

membership

in

the

Compact.

Each

of the

member

states

is

authorized

to

administer

the

federal/state

National

Pollutant

Discharge

Elimination

System

(NPDES)

as

established

in

Section 402 of the Federal

Clean

Water Act.

Sections 301 (b)(1 )(C)

and

510

of the Federal

Act

require that permits issued under that system incorporate applicable standards promulgated by an

interstate

agency

wherever they

are

more

stringent

than

comparable

state or

federal

standards.

The NPDES

permits

are therefore the primary

means by which the Commission’s

Standards

are

implemented

and enforced.

These standards set forth the uses to be protected in the Ohio River (Section III),

as established in

the Compact;

establish water quality

criteria to

assure

that those uses will be

achieved (Section

IV),

and

set waste

water discharge

requirements (Section V)

needed to

attain

the water

quality

criteria. The

standards

also

recognize the

rights of individual

states to

adopt

and

apply

more

stringent regulations.

Specific waste

water

discharge

requirements

are

established

in

these regulations

and

must

be

incorporated into

discharge

permits

issued under the authority of the NPDES

or state discharge

permitting programs when they

are

more stringent than:

1)

applicable

U.S.

EPA

technology-based

effluent

guidelines

required

under

Sections

301, 304, 306,

and

307 ofthe Federal Clean Water Act, or

2)

any

state treatment

requirements,

effluent, standards,

or

water quality-based

effluent

limits.

In

the absence of promulgated

Federal

effluent

guidelines pursuant

to Sections

301,

304,

306,

and

307’ of

the Clean Water Act, the Compact signatory states

have the responsibility to establish

effluent

limitations

to

be

included

in

any

discharge

permit,

consistent

with

the

standards

contained herein using Best Professional Judgment on a case-by-case basis~

II.

DEFINITIONS

A.

“Acute

Criteria”

means

the

highest

concentrations

of

toxic

substances

to

which

organisms

can

be

exposed

for

a

brief period of

time

(as

measured by

approved

short-

term exposure tests) without causing mortality or other unacceptable effects.

B.’

“Biological Integrity” means the ability of an aquatic

ecosystem to support

and

maintain

a balanced,

integrated,

adaptive community of organisms having

a species

composition,

diversity,

and

functional

organization

comparable

to

those

best

attainable

given

ecoregional attributes

and

the modified habitattypes ofthe river.

2

---

C.

“Chronic

Criteria”

means

the

highest

concentrations

of

toxic

substances

to

which

organisms can be exposed indefinitely without causing long-term harmful effects on

growth

and/or

reproduction

or

other

unacceptable

effects

(as

measured

by

approved

long-term

exposure tests).

D.

“Combined Sewer Overflow” means a discharge from a sewer system designed to convey

sanitary

waste

waters

and

storm

water

through

a

single-pipe

system

to

a

treatment

facility, at a point in the system prior to the treatment facility.

E.

“Compact,” as used in these regulations, means the Ohio River Valley Water

Sanitation

Compact

and

is

an

agreement

entered

into by

and

between the states of Indiana, West

Virginia, Ohio, New York, Illinois, Kentucky, Pennsylvania, and Virginia, which pledges

each to the other ofthe signatory states faithful cooperation in the control ofexisting and

future pollution of the waters

in the Ohio River Basin.

This Compact

created

the Ohio

RiverValley Water Sanitation Commission.

F.

“Cooling Water” means water used as a heat transfermedium for once-through cooling or

cooling

tower

blow

down

to

which

no

industrial

wastes, toxic

wastes,

residues

from

potable water treatment plants, untreated sewage, or other wastes, exclusive ofantifouling

agents approved by the appropriate regulatory agencies, are added prior to discharge.

G.

“Contact Recreation” means recreational

activities where the human body may come

in

direct contactwith water ofthe Ohio River.

H.

“Early

Life

Stages” of fish

means the pre-hatch

embryonic

period, the post-hatch

free

embryo or yolk-sac

fly, and the larval period, during which the organism feeds.

Juvenile

fish, which are anatomically rather similar to adults, are not considered an early life stage.

“Industrial

Wastes”

means

any

liquid,

gaseous,

solid

materials or

waste substances

or

combination

thereof

other

than

cooling

water

as

herein

defined,

resulting

from

any

process

or operation

inclUding

storage and

transportation, ,manufacturing,

commercial,

agricultural, and government operations.

J.

“Mixing Zone” means that portion of thewater body receiving a discharge where effluent

and receiving waters are not totally mixed and

uniform with the result that the zone is not

representative

of the

receiving

waters

and

may

not

meet

all

ambient

water

quality

standards

or

other

requirements

of

any

signatory

state

applicable

to

the

particular

receiving waters.

K.

“Net Discharge” is determined by excluding the amount ofpollution in intake water when

determining the quality ofa discharge if both the intake and discharge are from’ and to the

same body ofwater.

3-

---

L.

“96 hour LC50” as used in these regulations, means the concentration of a substance that

kills 50 percent ofthe test organisms within 96 hours. The test organisms shall be

representative important species indigenous to the Ohio River or standard test organisms.

M.

The “Ohio River,” as used in these regulations,

extends from the point ofconfluence of

the Allegheny and

Monongahela rivers

at Pittsburgh, Pennsylvania, designated

as Ohio

River mile point

0.0

to

Cairo Point,

Illinois, located

at the confluence of the• Ohio

and

Mississippi Rivers, 981.0 miles downstream from Pittsburgh.

N.

“Ohio

River

Valley Water

Sanitation

Commission”

(the

Commission)

means

a body

corporate created by authority

of

the Compact and is the operating agency established to

implement the ‘Compact.

It

consists ofthree representatives of each signatory

state and

three reprósentatives ofthe federal government.

0.

“Other Wastes”means any waste other than sewage, cooling water, residues from potable

water treatment plants, industrial wastes or toxic wastes which, if discharged to the Ohio

River,

could cause or ‘contribute to

any

violations ofthese regulations, or of any water

quality

standards of any signatory state, ‘or which may be

deleteriOus

to the designated

uses.

Other

wastes

include,

but

are

not

limited

to:

garbage,

refuse,

decayed

wood,

sawdust,

shavings,

bark and

other wood debris

and

residues

resulting

from

secondary

processing,

sand,

lime

cinders,

ashes,

offal,

night

soil,

silt,

oil,

tar,

dyestuffs,

acids,

‘chemicals, heat or other materiais~andsubstances not sewage or industrial

wastes which

may cause or might reasonably be expected to cause or contribute to the pollution ofthe

Ohio River.

P.

“Persistent

Substances”

means

those

substances

that

have

a

half-life

for

degradation

under natural environmental conditions of more than four days.

All other substances are

non-persistent.

Q.

“Pollution”

means

the

human-made

or

human-induced

alteration

of

the

chemical,

physical, biological and radiological integrity ofthewaters ofthe Ohio River.

R.

“Representative Aquatic Species” means those

species of aquatic

,

life whose protection

and propagation will assure the sustained presence of’a balanced indigenous

community.

Such

species are representative

in the sense that

maintenance of suitable water quality

conditions

will assure

the overall

protection

and

sustain

propagation’ of the balanced,

indigenous community.

S.

“Residues from

Potable

Water

Treatment

Plants” means those wastes

emanating

from

processes used in waterpurification. Such processes may include sedimentation, chemical

coagulation, filtration, iron and manganese removal, softening and disinfection.

4

---

T.

“Sewage” means water-carried human or animal wastes from such sources as residences;

industrial,

commercial,

or government

establishments;

public

or private

institutions; or

other places. For the purposes ofthese standards, the

admixture

ofsewage with industrial

wastes,

toxic wastes, or other wastes, shall be subject to treatment requirements for those

types

of wastes, but shall also be regarded as sewage.

U.

“Substantially

Complete

Removal”

means

removal

to

the

lowest

practicable

level

attainable

with current

technology.

V.

“Toxic Wastes” means wastes

containing

substances or

combinations of substances

in

concentrations which might reasonably

be

expected

to

cause

death, disease, behavioral

abnormalities,

genetic

mutations,

physiological

malfunctions,

including

those

in

reproduction, or physical deformations

in

fish,

other aquatic life,

wildlife,

livestock, or

humans.

W.

“Waste Water”means sewage and/or

industrial wastes as herein defined.

III.

DESIGNATED

USES

The

Ohio

River, as

hereinbefore defined, has been designated

by

the Compact as available for

safe

and

satisfactory

use

as

public

and

industrial

water

supplies

after

reasonable

treatment,

suitable for recreational usage,

capable of maintaining

fish and other aquatic life, and

adaptable

to such other uses as may be legitimate.

It is the purpose ofthese Pollution

Control Standards to

safeguard the waters of the Ohio

River for these designated uses. No degradation ofthe water

quality

of the

Ohio

River that

would

interfere with or become injurious to these uses shall be

permitted.

IV.

WATER QUALITY

CRITERIA

A.

General

The

minimum conditions

which the waste water discharge requirements (Section V) are

intended to achieve in the receiving waters

outside

the mixing zone are as follows:

1.

Freedom

from

anything

that

will

settle

to

form

objectionable

sludge

deposits

which interfere with designated water uses.

2.

Freedom from floating

debris,

scum,

oil

and other floating

material

in

amounts

sufficient to be unsightly or deleterious.

5-

---

/

3.

Freedom from materials producing color or odors to such a degree as to create

unaesthetic conditions or a nuisance.

4.

Freedom from substances in concentrationswhich are toxic or

harmful

to humans,

animals, or fish

and other aquatic

life;

which

would

in

any

manner adversely

affect the flavor, color, odor, or edibility of fish and other aquatic life, wildlife, or

livestock, or which

are otherwise detnmental to

the

designated uses specified

in

Section III.

B.

Aquatic Life Protection

To

provide protection of warm water aquatic life habitats,

the following criteria shall be

met outside the mixing zone:

1.

BIOLOGICAL:

The biological

integrity of the Ohio River shall be protected and

preserved.

2.

DISSOLVED OXYGEN: The average concentration shall be at least 5.0 mgfL for

each calendar

day; the minimum concentration

shall not be

less

than 4.0

mgfL.

During the

April

15-June

15

spawning season, a minimum concentration of

5.0

mg/L shall be maintained at

all times.

3.

TEMPERATURE: Allowable stream temperatures are:

Month/Date

January

1-31

February

1-29

March 1-15

March

16-31

April 1-15

April 16-30

May 1-15

May 16-31

June 1-15

June 16-30

July 1-31

August 1-31

September 1-15

September 16-30

October 1-15

October 16-31

November 1-30

December

1-31

Period Average

45°F 7.2°C

45

7.2

51

10.6

54

12.2

58

14.4

64

17.8

68

20.0

75

23.9

80

26.7

83

28.3

84

28.9

84

28.9

84

28.9,

82

27.8

77

25.0

72

22.2

67

19.4

52

11.1

Instantaneous Maximum

50°F 10.0°C

50

10.0

56

13.3

59

15.0

64

17.8

69

20.6

73

22.8

80

26.7

85

29.4

87

30.6

89

31.7

89

31.7

87

30.6

86

30.0

82

27.8

77

25.0

72

22.2

57

13.9

6

---

4.

pH: No value below 6.0 standard units nor above 9.0 standard units.

5.

AMMONIA

a.

Acute Criterion

Concentration:

The one-hour

average

concentration of total

ammonia-nitrogen

(mgJL)

shall not exceed, more than once every three years on

the average, the ACC (acute criterion) calculated using the following equation:

ACC=

0.411

1

+

10

(7.204-pH)

+

58.4

I

+

10

(pH-7.204)

b.

Chronic Criterion

Concentration:

The

30-day

average concentration of total

ammonia-nitrogen (in mg/L)

shall not exceed, more than once every three years,

theCCC (chronic criterion) calculated using

the following equations:

i.

VThen fish early life stages are present (fromMarch 1 to October 31):

T

=

Temperature,

°C

Note:

For the above equation, multiply

the parenthetical equation by

2.85

when

temperature

is

less

than

or

equal

to

14.51°C.

When

temperature

is

greater than 14.51°C, multiply the

parenthetical

equationby (1.45

*

1

0(0.028*(25T)).

ii.

When fish early life stages are absent (from

November

1 to the last day of

February

CCC

=

(0.0577

+ 10

(7.68~~

Where:

+

2.487

1

+

10

~~~7688~

)

*(

1.45

*

100028*

(25- (MAX

IT Ok 71)))

T

=

Temperature, °C

Note:

Forthe above equation, the last term should be

10(0.028 (25-T)) for

all temperatures greater than 7°C.

When temperatures are 7°Cor

less, the

last term in the equation should be

10(0.028(257~

or

1

0(0i0~

CCC

=

(

0.0577

+

10

(7.688.pH)

Where:

+

2.487

1

+ 10

(pl-7.688)

)

*MJN~2

85

OR(1

45*

10~028

*(25T))

7

---

iii.

In addition, the highest four-day average withiri th~

30-day period

should not exceed

2.5

times the chronic criterion.

Acute and chronic criteria concentrations for total ammonia-nitrogen (in mg/L) or

different combinationsofpH and temperature are shown m Appendix A

6.

CHEMICAL CONSTITUENTS:

a.

Not to.exceed the following concentrations:

b.

For constituents

with

criteria’ dependent

upon

water

hardness,

dissolved’

metals acute aquatic life criteria shall be calculated~asthe total recoverable

acute

criteria multiplied

by

the

conversion; factoraccording

to

the table

‘below.

,

c

For constituents

with

cntena

dependent

upon

water hardness,

dissolved

metals

chromc

aquatic

life

entena

shall

be

calculated

as

the

total

recoverable chronic criterion multiplied by the conversion factor according

to the following table.

Concentration

-

Coucentiation (~ig/L)

arsenic ~cussoiveu~

Chromium (V1)(dissolved)

Mercury (dissolved)

Selenium (total)

150

11

5.2

0.77

5

340

16

1.4

20

Acute Cnte~on

-

Cons’ersionFactor

--

-

(~g/L)~

-

-

CádtniUfli

Chromium (Ill~

Lead

Nickel

Silver

Zinc

e~°~81~”

Hard+3.7256)

Hard)4.7OO~’

~

Hard)~1.46O)

Hard)+2.255)

1 136672_~ln(Hard)*00418381

0.960~’

1.46203_Iin(Hard)*O.1457121

0.998

0.850

0.978

e0~7~”

HanI).632)

llard)4~.884)

8

---

d.

Concentrations for metals

are dissolved

(except

selenium,

which

is

total

recoverable),

unless

it

can

be

demonstrated

to

the

satisfaction

of the

Commission

and

its

member

states,

that

a

more

appropnate

analytical

technique is available which provides a measurement ofthat portion ofthe

metal present which causes toxicity to aquatic life.

e.

Waste

water

discharge

requirements

for

these

constituents

shall

be

expressed as total recoverable limits, and shall be based

on the dissolved

aquatic life criteria, the

appropriate translators (as listed

in Appendix

B),

the

in-stream

concentration

upstream of the point of discharge, and

the

minimum

7-day,

10-year

stream

flow

as

contained

in

Appendix~C.

Translators,

other than those

listed

in Appendix

B,

may

be used after a

successful

demonstration

to

the

Commission

and

its

member

states.

Criteria for cadmium, trivalent chromium,

copper,

lead, nickel,

silver and

zinc at specified hardness values are listed in Appendix C.

7.

OThER

TOXIC SUBSTANCES:

Water

quality

criteria for substances

not otherwise specified

in this section shall

be derived based on the following:

a.

For the Protection of Aquatic Life, methodologies set forth in U.S.

EPA’s

Final Water Quality Guidance for the Great Lakes System, adopted in the

Federal Register, March 23,

1995, shall be used (see Appendix D).

b.

Limiting

concentrations other than those derived from the, above may be

used

for

the

protection

of

aquatic

life

when

justified

on

the

basis

of

scientifically defensible evidence.

Total

Recoverable

Dissoh ed Criterion

Constituent

Chronic Criterion

Corn ersion Factor

(j~tgIL)

Chromium (trivalent)

Lead

Nickel

Zinc

e’’

—

e~°~819~’~

Hard)+O.6848)

Hard)-i.702)

Hard)-4.705)

e~°~8460~

Hard)+O.0584)

Hard)+O.884)

1 .101672_~In(Hard)*O.0418381

0.860

0.960

‘

1.46203.~~ln(Hard)*0.145712

0.997

0.986

9-

---

C.

Human Health Protection

To provide protection to human

health,

the

following criteria shall be met

outside

the

mixing zone:

BACTERIA:

a.

Maximum allowable level

of fecal coliform bacteria for use as a source of

public water supply

--

for the months of November through April,

content

shall not exceed 2,000/100mL

as a

monthly geometric mean based

on

not

less than five samples per month.

b.

Maximum allowable

level

of

fecal colifonn

bacteria

for contact recreation

--

for

the

months

of May

through

October,

content

shall

not

exceed

200/100

mL

as

a

monthly

geometric mean

based

on

not

less

than five

samples per month;

nor exceed 400/100 mL in more than

10 percent ofall

samples taken during the month.

c.

Maximum allowable

level

of

Escherichia

coli

bacteria

for

contact

recreation

--

for the months of May through October,

measurements of

Escherichia

coli

bacteria

may

be

substituted

for fecal

coliform.

Content

shall not

exceed

130/100 mL as a monthly

geometric mean, based on not

less than five samples per month, nor exceed 240/100 mL in any sample.

2.

CHEMICAL CONSTITUENTS:

Not to exceed the following concentrations:

Constituents

Arsenic

Barium

Chloride

Fluoride

Mercury

Nitrite

+

Nitrate Nitrogen

Nitrite

Nitrogen

Phenolics

Silver

Sulfate

Concentration

mg/L

0.05

1.0

250

1.0

0.000012

10.0

1.0

0.005

0.05

250

10

---

3.

RADIONUCLIDES:

Gross ‘total

alpha

activity

(including

radium-22~, but

excluding radon and uranium) shall not exceed

15 picocuries per liter (pCifL) and

combined radium-226

and radium-228 shall not exceed

4 pCi/L.

Concentration of

total

gross beta

particle

activity

shall not

exceed

50 pCiIL;

the concentration

of

total strontium-90 shall not exceed

8 pCi/L.

4.

OTHERTOXIC SUBSTANCES:

Water

quality

criteria

for

substances

not

otherwise specified in this section shall be derived based on the following:

a.

For the protection of human health, the most recent criteria published by

the United States Environmental Protection Agency pursuant to Section

304(a) ofthe Federal Clean Water Act shall be used.

i. For substances

identified as human carcinogens, waste water discharge

requirements

shall

be

developed

based

on

the

in-stream

concentration

above the point ofdischarge,

and

calculated so as to prevent one additional

cancer

per one million population at the

harmonic mean

stream

flow (see

Appendix C).

ii.

For

substances

not

identified

as

human

carcinogens,

waste

water

discharge

requirements

shall

be

developed

based

on

the

in-stream

concentration

above

the

point

of discharge

and

calculated

to

meet

the

water quality criteria at the minimum 7-day,

10-year flow (see

Appendix C).

b.

Limiting

concentrations

other

than

those derived

from the above may be

used for

the

protection

of human

health

when justified

on

the basis

of

scientifically defensible evidence.

D.

Site-Specific Criteria

Alternative site-specific criteria for the constituents listed herein may be approved if they

are

demonstrated

to

be

appropriate

to

the

satisfaction

of

the

Commission.

Such

demonstrations shall utilize methods contained in the Water Quality Standards Handbook

(U.S. EPA publication EPA823-B94005A, August 1994).

11

---

V.

WASTE WATER DISCHARGE’

REQUIREMENTS

A.

General

No

discharge of sewage,

industrial

wastes,

toxic

wastes,

other wastes,

cooling

water or residues from potable water treatment plants

shall cause or contribute to

a

violation

of

these

waste

water

discharge

requirements,

shall

preclude

the

attainment of

any

designated use of the main stem waters of the Ohio

River, or

shall interfere with the attainment of the water quality criteria set

forth in

Section

IV.

2.

All

discharges of sewage,

industrial wastes, toxic

wastes,

other wastes,

cooling

water or residues from potable water treatment plants shall be treated or otherwise

modified so as to provide:

a.

Substantially

complete

removal

of

settleable

solids,

which

may

form

sludge deposits;

b.

Substantially

complete

removal of

oil,

debris,

scum

and

other

floating

material;

c.

Reduction of total

suspended solids

and

other materials

to such a

degree

that

the discharge will not

produce a substantial

negative visible

contrast

to natural conditions in turbidity, color or odor ‘ofthe river, or impart

taste

to potable water supplies, or cause tainting offish flesh;

d.

Reduction

of

all

substances

in

amounts

which,

when

concentrated

or

combined

in

the

receiving

stream,

would

result

in

conditions

toxic

or

harmful to humans,

animals, or fish and other aquatic life;

which would

in

any

manner adversely affect the flavor, color, odor, or edibility offish and

other aquatic life, wildlife, or livestock; or which are otherwise detrimental

to the designated water uses specified in Section ifi.

B.

Sewage

MINIMUM

LEVEL OF TREATMENT:

Sewage

shall

be

treated

prior

to

discharge,

to

meet

the

following

effluent

limitations in addition to the requirements of Section V.A.

12

---

a.

Biochemical Oxygen Demand

i.

Five-day biochemical oxygen demand (BOD5)

-

the

arithmetic

mean of

the values for

effluent

samples collected

in

a month shall

not

exceed

30

mg/L,

and the arithmetic mean ofthe values for effluent samples collected

in’ a week shall not exceed 45 mg/L.

ii.

Five-day carbonaceous biochemical oxygen demand (CBOD5) may be

substituted

for BOD5,

provided that

the arithmetic mean ofthe values for

effluent samples

collected in

a

month shall not

exceed

25

mg/L,

and

the

arithmetic mean ofthe values of effluent samples collected in a week

shall

not exceed 40 mg/L.

b.

Suspended Solids

The

arithmetic

mean

of the

values

for

effluent

samples

collected

in

a

month shall not exceed 30 mg/L,

and the arithmetic mean of the values (or

effluent samples collected

in a week shall not exceed

45

mg/L.

c.

pH

The effluent values for pH shall be maintained within the limits of 6.0 to

9.0 standard units.

d.

Bacteria

i.

During the months ofNovember through April,

the geometric mean of

the fecal coliform bacteria content ofeffluent

samples collected in a month

shall not exceed 2,000/100 mL.

ii.

During the months ofMay through October, the geometric mean ofthe

fecal

coliform

bacteria content

of effluent samples collected

in

a

month

shall not exceed

200/100 mL, and no

more than

10

percent ofthe values

shall exceed 400/100 mL.

iii.

During the months ofMay through October,

Escherichia cpu

may be

substituted

for

fecal

coliform

provided

that

the

geometric mean of the

values for effluent samples collected

in a month shall not exceed 130/100

mL, and no more than 10 percent ofthe values shall exceed 240/100 mL.

13..

---

2.

ALTERNATIVE

TREATMENT:’

Such facilities as waste stabilization ponds and trickling filters shall be deemed to

provide effective treatment ofsewage, provided that the

requirements of Sections

V.A., V.B.1 .(c) and

(d) are met, that the effluent does not cause any

violations of

applicable

states’

water

quality

standards

or

Sections

III

and

IV

of

these

regulations, and that the following requirements are met:

a.

Biochemical Oxygen Demand

i.

Five-day biochemical oxygen demand (BOD5)

--

the arithmetic mean of

the values for effluent samples collected in a month shall not exceed 45

mg/L; and the arithmetic mean ofthe values for effluent samples collected

in a week shall not exceed 65 mg/L.

ii.

Five-day carbonaceous biochemical oxygen demand (CBOD5)

may be

substituted for BOD5,

provided that

the levels

are not

less

stringent than

the

following:

the

arithmetic

mean

of the

values

for

effluent

samples

collected in a month shall not exceed 40 mgfL and; the arithmetic mean of

the

values for effluent

samples collected

in

a week

shall not

exceed

60

mgfL.

b.

Suspended Solids

The

arithmetic

mean of the

values

for

effluent

samples

collected

in

a

month shall not exceed 45

mg/L;

and the arithmetic mean ofthe values for

effluent samples collected in a week shall not exceed

65

mg/L.

3.

COMBINED SEWER OVERFLOWS

a.

A direct

discharge, if caused

by temporary

excess

flows due

to

storm

water

collected

and

conveyed

through

combined

sewer

systems,

shall

not

be

considered in violation ofthese waste water discharge requirements, providing

that

the

discharger

is

demonstrating

compliance

with

the

nine

minimum

controls as specified

in the

U.S.

EPA’s

national Combined

Sewer

Overflow

Control Policy (EPA 830-B-94-00l, April

1994).

The nine minimum controls

are as

follows:

1.

Proper operation and regular maintenance programs for the

sewer system

and the CSOs;

2.

Maximum use ofthe collection system for storage;

3.

Review and modification ofpretreatment requirements to

assure

CSO impacts are

minimized;

14

---

4.

Maximization of flowto the POTW for treatment;

5.

Prohibition ofCSOs during dry weather;

6.

Control of solid and floatable materials in CSOs;

7.

Pollution prevention;

8.

Public notification to ensure that the public receives adequate

notice ofCSO occurrences and CSO

impacts;

9.

Monitoring to effectively characterize CSO impacts and the

efficacy ofCSO controls.

In addition,

the

discharge must not

interfere with

the attainment of the

water quality criteria set forth in Section IV.

b.

No

discharges

to

the

Ohio

River

shall

occur

from

combined

sewer

regulating

devices

unless

there

‘has

been

rainfall

in

greater

than

‘trace

amounts

or

significant

melting

of

frozen

precipitation

during

the

immediately preceding 24-hours, or unless the discharge is caused by river

elevation at or above the established flood

stage.

c.

Treatment ofFlows from Combined Sewer Systems during Wet Weather

Conditions

,

In cases

where

municipal

wastewater

treatment plants

serving

combined

sewer

areas

have

primary

treatment

capacity

in

excess

of

secondary

treatment

capacity,

opportunities

may

exist

for

partial

treatment

of

combined

flows

which

would

otherwise

be

discharged

as

untreated

combined

sewer

overflows.

In

such

cases,

in

order

to

maximize

the

treatment ofwet weather flows from combined sewer systems and reduce

the

frequency and

duration of combined

sewer

overflow

(CSO)

events,

bypass ofthe secondary treatment during

wet weather conditions may be

allowed on an interim basis, provided the following conditions are met:

1.

the facilities are properly operated and maintained,

2.

the maximum possible quantity ofwaste water (determined

through an approved engineering study) receives secondary

treatment in accordance with discharge requirements, and

3.

the discharge does not cause exceedances of water quality

criteria in the Ohio River outside the mixing zone.

Bypasses

of

secondary

treatment

which

are

necessary

in

order

to

implement

a

CSO

long-term

control

plan

which

includes

primary

treatment

options

at

the

municipal

wastewater

treatment

plant

may

be

allowed, provided

it is

not

technically or

financially

feasible

to

provide

secondary

treatment

of

greater

amounts

of

wet

weather

flow.

The

consideration

of

feasible

alternatives

should

be

documented

in

the

development ofthe long-term control plan.

15

---

C.

Industrial Wastes, Including Toxic Wastes

The

minimum level oftreatment for industrial wastes including toxic wastes, prior

to

discharge

shall

be

in

accordance

with

national

effluent

limitations

and

guidelines

adopted

by

the

Administrator

of the

United

States

Environmental

Protection Agency pursuant to

Sections

301

and

302 of the Federal Clean Water

Act,

national

standards

of performance

for

new

sources

adopted

pursuant

to

Section 306 of the Federal

Clean Water Act, and national toxic

and pretreatment

effluent limitations, adopted pursuant to

Section

307 of the Federal Clean Water

Act or in accordance with the standards of the state in which the discharge occurs.

2.

In addition, the net discharge ofthe following toxic pollutants

is prohibited:

a.

Aidrin (a,2,3,4,l 0,1 0-hexachloro- 1 ,4,4a,5,8,8a-hexahydro- 1, 4-endo-5,

8-exo-dimethanonaphthalene)

b.

Dieldrin (a,2,3,4, 10,1 0-hexachloro-6, 7-epoxy-l,4,4a,5,6,7,8,8a-

octahydro-l, 4-endo-5, 8-exo-dimethanonaphthalene)

c.

DDT, including ~DDDand DDE

i.

DDT means l,1,1-trichloro-2,2-bis(p-chlorophenyl)ethane and some

o,p’-isomers

ii.

DDD (TDE) means

1,1 -dichloro-2, 2-bis(p-chlorophenyl) ethane and

some o,p’-isomers

iii~

DDE.means I,i4ichioLro~2,

2~bis(p-ch1orophenyI)ethylene~~

d.

Endrin (1,2,3,4,10,10-hexaChloro-6, 7-epoxy-i, 4,4a,5,6,7,8,8a-octahydro-

1,

4-endo-5, 8-endo-dimethanonaphthalene)

e.

Toxaphene

-

a material consisting ofteôlmical grade chlorinated camphene

having the approximate formulaofC10H10C18 and normally containing 67-

69 percent chlorine by weight.

f.

Benzidine

-

the compound benzidine and its salts as identified by the

chemical name 4,4-diaminobiphenyl

g.

Polychlorinated Biphenyls (PCB)

-

a mixture ofcompounds composed of

the biphenyl molecule which has been chlorinated to varying degrees.

D.

Residues from Potable Water Treatment Plants

The use ofcontrolled discharge for residues from potable water treatment plant processes

of

sedimentation,

coagulation

and

filtration

may

be

authorized

provided

that,

as

a

minimum, the discharge meets all therequirements of Section IV.A. and V.A.

16

---

E.

Cooling Water

1.

A

discharge of cooling

water shall meet

the

requirements of Section

V.A.

and

shall not cause violations of the temperature criteria set forth in

Section

IV.B.3.,

except

as

authorized

by

a

variance

issued

pursuant

to

Section

316(a)

of

the

Federal Clean Water Act.

2.

Any cooling water additives that will ultimately be discharged to the environment

must be approved by the appropriate state agency.

F.

Other Wastes

The

discharge

of

Other

Wastes

(other

than

those

specified

above)

shall

meet

the

requirements ofSection V.A.

and shall not cause or contribute to a violation ofthe water

quality criteria set forth in Section IV.

VI.

MIXING ZONE DESIGNATION

A.

Where mixing zones are allowed by the permitting authority, the specific numerical limits

for

any mixing

zone

shall

be

determined

on

a

case-by-case

basis,

and

shall

include

considerations for existing uses, linear distance (i.e.,

length and width)

from the point of

discharge, surface area involved, and volume ofreceiving water within the defined zone.

B.

Conditions within the mixing zone shall not be injurious to human health, in the event of

a temporary exposure.

C.

Acute water quality criteria, as specified

in Section IV.B.6, will apply at all points

within

the

mixing

zone;

however,

states may

at

their discretion

allow

a

smaller

zone

in

the

immediate

vicinity

of the

point

of

discharge

in

which

acute

criteria

are

exceeded,

provided the zone does not impact the water.ofanother state.

D.

The mixing

zone shall be

free from

substances attributable to

sewage,

industrial wastes,

toxic wastes, other wastes, cooling water, or residues from potable water treatment plants

in quantities which:

1.

Settle to form sludge deposits;

2.

Float as debris, scum, or oil;~

‘

3.

Contaminate natural sediments so as to cause ,or contribute to a violation of:

a.

appropriate stream criteria outside the mixing zone, or

b.

any condition of the designated uses of the water.

4.

Impart a disagreeable flavor or odor to flesh offish or other aquatic life, wildlife

or livestock which are consumed by humans and which acquire such a flavor

because ofpassage through or ingestion ofthe waters from the mixing zone.

17

---

E.

The mixing zone shall be located

so as not to interfere significantly with migratory

movements and passage offish, other aquatic life, and wildlife. No mixing zone shall

adversely impact water quality so as

to interfere

with potable or industrial water supplies,

bathing areas, reproduction of fish, other aquatic life and

wildlife.

‘

VII.

LIMITATION

Nothing contained in these regulations

shall be

construed to

limit the powers of any state

signatory

to

the

Compact

to

promulgate

more

stringent

criteria,

conditions

and

restrictions to further lessen orprevent the pollution ofwaters within its jurisdiction.

VIII.

VARIANCE

A.

The

Commission

may

grant

a

variance

from

the

provisions

of Section

V

of

these

standards, provided that the uses set forth in Section .ffl are maintained and that the water

quality

criteria set forth in Section IV are met.

The applicant for a variance shall adhere

to thefollowing:

1.

The specific reasons for the variance shall be clearly stated in writing;

2.

The

burden of proof

is

upon

the

applicant

to

assure that

the

uses

set

forth

in

Section ifi are maintained;

3.

Prior concurrence of the state where the applicant’s discharge is located and those

state(s) that may be affected must be obtained;

4.

Such additional information shall be provided to the Commission upon request.

B.

A variance may be granted for a period not

to exceed the life ofthe applicable

discharge

permit;

the applicant

may

apply for a

variance

renewal

prior to

the

expiration

of the

permit.

18

---

IX. ANALYTICAL

METHODS

Tests

or

analytical

determinations

establish

compliance

or

non-compliance

with

the

Waste

Water

Discharge

Requirements

and

stream

criteria

established herein

shall

be

made

in

accordance with

accepted procedures such as

those contained in the:

(a)

latest

edition ofStandard Methods for the Examination of Water and Waste Water prepared and

published jointly

by the American Public Health Association (APHA), American

Water

Works Association

(AWWA),

and

Water

Environment

Federation

(WEF);

(b) ,Annual

Book

of ASTM

Standards.

Part

31

-

Water

published by

the

American

Society

for

Testing and Materials;

(c)

Guidelines Establishing.Test Procedures for the Analysis of

Pollutants

(40 CFR

136) by

the U.S.

Environmental

Protection

Agency; or

(d) by

such

other methods as are approvedby the Commission as equal or superior to or not available

within methods in documents listed above, provided ‘such other test methods are available

to the public.

X.

SEVERABILITY CLAUSE

Should

any one Or more of the Pollution Control Standards hereby established or should

any one or more provisions of the regulations herein contained be held or determined to

be

invalid, illegal

or unenforceable, for any

reason

whatsoever, all

other standards

and

other provisions shall remain effective.

19