Z
ARKANSAS
WATER QUALITY STANDARDS
SUMMARY
Revised April 1972
NITED STATES ENVIRONMENTAL
ROTECTION AGENCY
ARKANSAS DEPARTMENT OF POLLUTION
CONTROL AND ECOLOGY
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PREFACE
The information contained herein has been condensed from Water Quality
Criteria and Plan for Implementation, State of Arkansas, prepared by the
Arkansas Department of Pollution Control and Ecology,* and approved by
the Administrator of the Environmental Protection Agency,** This summary
is intended for all who have an interest in the quality of water in the State.
A summarization of this type, of necessity, omits many pertinent details.
For more detailed information, consult the Arkansas Department of Pollu-
tion Control and Ecology or the complete text.
*Prior to July 1, 1971, the Arkansas Pollution Control Commission.
**Prior to December 2, 1970, the Secretary of the Interior.
Revised April 1972
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CONTENTS
Page
Introduction 1
Water Uses 3
Water Quality Criteria 7
Implementation Plan 15
Explanation of Terms 19
State and Federal Agency Addresses 21
TABLES
I. Water Use Designations by Basin 5
II. Water Quality Criteria by Basin 14
FIGURES
I. Arkansas Major Streams
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SUMMARY OF WATER QUALITY STANDARDS
FOR
THE INTERSTATE WATERS OF ARKANSAS
INTRODUCTION
In the Water Quality Act of 1965, Congress authorized the establishment of
water quality standards for interstate waters. The purpose of these standards
is to protect the public health and welfare and enhance the quality of the
Nation's interstate waters to serve a variety of beneficial uses, such as public
water supply, recreation, protection of aquatic life, industrial, and agricul-
tural uses. This publication summarizes the standards for the general informa-
tion of the public and Federal, State and local officials as to the uses and
associated requirements for interstate water-ways in the State of Arkansas.
The Act, which amended the Federal Water Pollution Control Act, provided
for the States to establish standards for their interstate waters, which were
then subject to review and approval by the Secretary of the Interior.* All
States, and the District of Columbia and the Territories of Guam, Puerto
Rico and the Virgin Islands participated in this landmark effort to set stand-
ards. In the course of establishing the standards, public hearings were held
by the States and other jurisdictions noted above to give the public an op-
portunity to participate.
Arkansas adopted standards for its interstate waters on May 26, 1967, which
were then submitted to the Department of the Interior. Subsequently, cer-
tain revisions were made by the State in the original standards, and the
Secretary of the Interior approved the standards, as revised, on August 7,
1967. At the request of the Secretary of the Interior, Arkansas adopted a
policy to protect its high quality waters. The approved standards are thus
both State and Federal Standards, enforceable under the Arkansas water
pollution control statutes and the Federal Water Pollution Control Act, as
amended (Section 10).
*After December 2, 1970, the Administrator of the Environmental Protec-
tion Agency.
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The interstate waters for which standards were adopted are listed below and
depicted in Figure I.
The water quality criteria established by Arkansas apply to the following
interstate streams:
UPPER WHITE, NEOSHO, GRAND BASINS
Illinois River, Spavinaw Creek, Barren Fork, Elk River, White River (above
Newport), Black River, Current River, Eleven Point River, Spring River,
English Creek, and King's River.
LOWER WHITE BASIN
White River (Newport to Mississippi River) and Cache River.
ST. FRANCIS BASIN
Pemiscot Bayou, Buffalo Creek and St. Francis River.
ARKANSAS BASIN
Arkansas River and Poteau River.
UPPER OUACHITA BASIN
Upper Ouachita River down to and including mouth of Little Missouri River.
LOWER OUACHITA BASIN
Bayou Macon. Boeuf River, Bayou Bartholomew, Overflow Creek, Chemin-
a-Haut Creek, Ouachita River (Mouth of Little Missouri to Louisiana line),
Bayou Loutre, Little Cornie Bayou, Three Creeks, Cornie Bayou, and Big
Cornie Creek.
RED RIVER BASIN
Little River, Dorcheat B^you, Bodcaw Creek, Lelly Bayou, McKinney Bayou,
Sulphur River, and Red River.
MISSISSIPPI RIVER
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The standards consist of three major components: designation of the uses
which the waters are to serve, specification of narrative and numerical criteria
to protect and enhance water quality, and specification of a plan of imple-
mentation and enforcement, which includes treatment and control require-
ments for municipal, industrial and other wastes discharged to or affecting
the waters. These components are discussed in the following sections; all
three are essential to a complete standards program.
The standards are now being implemented. However, there will be continu-
ing research on water quality requirements for various beneficial uses and for
improved collection and evaluation of water quality data. As more informa-
tion becomes available and experience with implementing the standards is
gained, the standards will be refined and improved to reflect this new know-
ledge.
Should more detailed information be required on any aspect of the standards,
it may be obtained from the Arkansas Department of Pollution Control and
Ecology, Little Rock, Arkansas, or the Environmental Protection Agency
Regional Office in Dallas, Texas. On March 26, 1971, Arkansas established
water quality standards for its intrastate waters. Information on these stand-
ards may also be obtained from the Arkansas Department of Pollution Con-
trol and Ecology. The addresses of these offices are given on page 21.
WATER USES
The designation by the State of Arkansas of specific uses in all river basins is
to protect present uses, recognize practicable future uses, provide where pos-
sible for a variety of uses, and to assure compatibility of standards with
Federal, State and local resource planning. With few exceptions, the streams
of Arkansas contain waters of a quality suitable for all legitimate uses without
the necessity of unreasonable water treatment. Where man-made pollution
exists, substantial progress has been and is being made in abatement.
It is the purpose of. these criteria to preserve and enhance the quality of this
water so that it shall be reasonably available for all beneficial uses and thus
promote the social welfare and economic well-being of the people of the
State. To satisfy the intent of the Federal Water Pollution Control Act to en-
hance water quality, the standards specifically provide that no interstate
waters may be used solely or primarily for waste assimilation. The waters must
be aesthetically pleasing, and this quality is protected by narrative criteria
preventing unsightly or obnoxious conditions, such as floating debris, oil
slicks, unpleasant odors, and colors.
Specific use designations for all waters covered by the standards are provided
in Table I.
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WATER QUALITY CRITERIA
The protection of water quality and uses requires the establishment 01
numerical and narrative limits on pollutants which damage these uses. The
water quality criteria in this section reflect the best scientific judgment avail-
able as to the water quality requirements for the assigned uses. Numerical
criteria are used wherever it is reasonable to do so. However, narrative cri-
teria are also necessary in some cases, particularly with respect to aesthetic
considerations.
Some waters have a higher quality than the minimum levels assigned for pro-
tection of water uses, and the standards seek to protect this higher quality
as much as possible in the face of increasing social and economic develop-
ments. Scientific knowledge about the exact water quality requirements for
every use is limited, and by preventing degradation of high quality waters, the
standards seek to assure optimum, not marginal, conditions to protect the
uses associated with clean waters. The water quality criteria to protect the
designated uses in each river basin is shown below under general and specific
criteria and in Table 11. Also included is a statement on controlling degrada-
tion of high quality waters, by the Arkansas Department of Pollution Control
and Ecology.
GENERAL CRITERIA
1. Methods — The methods of sample collection, preservation,
measurements and analyses shall be in accordance with the latest
edition of "Standard Methods For The Examination of Water and
Wastewater" or other proven methods acceptable to the Depart-
ment.
2. Location — The effect of wastes on the receiving stream shall be
determined after the wastes have been thoroughly mixed with the
stream water, but consideration may also be given to the quality
of the waste effluent in determining the adequacy of treatment.
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3. Ephemeral Streams — Where there are streams with intermittent
flow, the treatment of waste discharged thereto shall be no less
than conventional secondary or equivalent if reasonably required
to protect present and projected future downstream uses.
4. Stream Flows — These criteria are based upon the assumption
that existing flow conditions in interstate streams shall continue
without material change. The minimum weekly flow that occurs
on the average once in 10 years will be used in applying these
criteria.
5. The quality of streams tributary to the interstate streams shall
be controlled so that the quality of the interstate streams will
not be lowered beyond the criteria set herein.
SPECIFIC CRITERIA
1. Temperature — The maximum temperature shall not be elevated
above 68° F. in trout streams, 86° F. in small-mouth bass streams,
and 95° F. in other streams. The temperature of a stream as deter-
mined by natural conditions shall not be increased or decreased
more than 5° F. by discharges thereto.
2. Color — True color shall not be increased to the extent that it will
interfere with present usage and projected future use of the stream.
3. Turbidity — There shall be no distinctly visible increase in turbidity
due to waste discharges to the stream.
4. Taste and Odor — Taste and odor producing substances shall be
limited to concentrations in the stream that will not interfere
with the production of potable water by reasonable water treat-
ment processes, or impart unpalatable flavor to food fish, or re-
sult in offensive odors arising from the stream, or otherwise
interfere with the reasonable use of the water.
5. Solids, Floating Material, and Deposits — The stream shall have no
distinctly visible solids, scum or foam of a persistent nature, nor
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shall there be any formation of slimes, bottom deposits or sludge
banks, attributable to waste discharges.
6. Oil and Grease - The stream shall be essentially free of the relative-
ly nonvolatile liquid components that contribute to the formation
of oil films, deposits and emulsions.
7. pH — The pH of water in the stream must not fluctuate in excess
of 1.0 pH unit, within the range of 6.0 - 9.0, over a period of
24 hours. The pH shall not be below 6.0 or above 9.0 due to wastes
discharged to the receiving stream.
8. Dissolved Oxygen (D.O.) - The dissolved oxygen in the stream
shall not be less than 4 ppm, and this shall be the critical deficit
point of the dissolved oxygen profile. The only exception will be
when periodic lower values are of natural origin and therefore
beyond control of the water user. For trout stream waters the
minimum dissolved oxygen content shall not be less than 5.0
mg/1. The dissolved oxygen sample shall be taken at mid-depth
and the middle of the stream on the smaller streams and rivers.
On the larger rivers the dissolved oxygen shall be determined by
the average of concentrations in samples collected at quarter points
across the river, and at two-tenths and eight-tenths of the depth
at each point.
9. Radioactivity - The Rules and Regulations for the Control of
Sources of Ionizing Radiation, of the Division of Radiological
Health, Arkansas Department of Health,* shall apply as to the
limits established for radiation levels in uncontrolled areas.
10. Bacteria — The Arkansas Department of Health has the responsi-
bility of approving or disapproving surface waters for swimming
and drinking water supply, and it has issued rules and regulations
pertaining to such uses. The regulation of the Department of
Pollution Control and Ecology states that the coliform group
shall not exceed 1000/100 milliliters as a monthly average value
(either most probable number or membrane filter count) for
*Priorto July 1, 1971, the Arkansas State Board of Health.
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waters substantially used for body contact aquatic sports; nor
exceed this number in more than twenty percent of the samples
examined during any one month; nor exceed 2,400/100 milliliters
on any day except during periods of storm water runoff; provided,
however, that no fecal contamination is known to be present. In
other waters, the coliform bacteria group shall not exceed 5,000/
100 milliliters as a monthly average value (either Most Probable
Number or membrane filter count); nor exceed this number in
more than twenty percent of the samples examined during any
month; nor exceed 20,000/100 milliliters in more than 57< of
such samples. Arithmetic averages will be used.
11. Toxic Substances — Toxic materials, organic or inoganic, shall
not be present in such quantities as to cause the waters to be
toxic to human, animal, plant or aquatic life or to interfere with
the normal propagation of aquatic life. For aquatic life and using
bioassay techniques, the level of toxic materials in the stream shall
not exceed one-tenth (0.1) of the forty-eight (48) hour Median
Tolerance Limit.
12. Mineral Quality — Waste discharges shall not affect existing mineral
quality so as to interfere with other beneficial uses. Recognizing
that the present water quality of the Arkansas and Red Rivers is
less than desirable from natural as well as manmade sources,
additional mineral discharges will be limited with the intent of
improving the quality as plans for removing majoi natural salt
sources are implemented. In the lower Ouachita River Basin it is
recognized that water quality is low due primarily to manmade
sources, but constantly improving under existing controls. Numeri-
cal mineral criteria will be set and implemented within the next
five years* as existing quality and results of the present controls
are evaluated.
*By August 2, 1972.
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ARKANSAS NON-DEGRADATION RESOLUTION
WHEREAS, the Arkansas Pollution Control Commission* has heretofore
promulgated Regulation No. 2, establishing water quality criteria for inter-
state streams within the State of Arkansas, pursuant to the provisions of
Section 3 of the Arkansas Water and Air Pollution Control Act (Act 472 of
the Acts of Arkansas for 1949, as amended; Ark. Stats., §82-1904), and
in compliance with the requirements of the Federal Water Quality Act of
of 1965 (Public Law 89-234, 33 U.S.C.A., §466g); and
WHEREAS, said Regulation provides that "The criteria are designed to en-
hance the quality, value, and beneficial uses of the water resources of the
State of Arkansas and to aid the prevention, control, and abatement of
water pollution"; and
WHEREAS, said Regulation further provides that "It is the purpose of these
criteria to preserve and enhance the quality of this water so that is shall be
reasonably available for all beneficial uses and thus promote the social wel-
fare and economic well-being of the people of the State"; and
WHEREAS, said Regulation further provides for a clear and unequivocal
non-degradation policy, to-wit:
"3. The water quality criteria herein contained shall not be construed
as permitting any waste amenable to treatment or control to be dis-
charged into any water of the State of Arkansas without reasonable
treatment or control. The Arkansas Water and Air Pollution Control
Act provides, among other things, that it shall be unlawful for any
person to discharge any waste into any waters of the State without hav-
ing first obtained a written permit from the Commission. A disposal
permit may not be issued unless there is submitted to the Commission
plans and specifications for a disposal system adequate to treat or con-
trol the wastes so as not to cause water pollution as defined in the Act.
Such treatment or control must be consistent with the state of the art
*After July 1, 1971, the Arkansas Department of Pollution Control and
Ecology.
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and best practicable industry standards, the minimum requirements be-
ing secondary treatment or equivalent, giving due regard to quality and
flow of the receiving waters, the present, future and potential uses of
such waters, economic feasibility, and other relevant factors".
and
WHEREAS, the Water Quality Standards for Interstate Streams adopted by
the Commission, of which Regulation No.2 is an integral part, were approved
without exception by the Secretary of Interior on August 7, 1967; and
WHEREAS, subsequent to such approval the Secretary of the Interior and the
Federal Water Pollution Control Administration* articulated a non-degrada-
tion policy, which has been authoritatively construed and explained by
responsible officials of the Department of the Interior as set forth in a Com-
pendium dated August, 1968; and
WHEREAS, the non-degradation policy incorporated in Regulation No. 2,
making clear that waters of existing quality higher than the established
standards may not be degraded by untreated waste discharges even though
the resulting water quality might comply with the standards and that a waste
disposal permit, as required by law, will not be issued by the Commission
unless the treatment or control is consistent with the stale of the art and
best practicable industry standards (the minimum requirements being second-
ary treatment or equivalent), is at least as strong as that subsequently adopt-
ed by the Secretary of the Interior and is fully consistent therewith; and
WHEREAS, the Commission wishes to assure the Secretary of the Interior
and Federal Water Pollution Control Administration of its cooperation in
implementing the Arkansas Water Quality Standards in general and the non-
degradation policy in particular, including the furnishing of relevant informa-
tion and data;
NOW, THEREFORE, BE IT RESOLVED, That the Arkansas Pollution
* After December 2, 1970, the Administrator of the Environmental Protec-
tion Agency.
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Control Commission, its agents, servants, and employees, shall cooperate
with the Secretary of Interior and the Federal Water Pollution Control
Administration in implementing the Arkansas Water Quality Standards and
the non-degradation policy incorporated therein. In connection with such
implementation, the Secretary of the Interior and the Federal Water Pollution
Control Administration will be kept advised and will be provided with such
information as they will need to discharge their responsibilities under the
Federal Water Pollution Control Act, as amended.
BE IT FURTHER RESOLVED, That the Director of the Commission is
hereby authorized and directed to take such action as may be necessary or
appropriate to effectuate the foregoing.
Resolved the 25th day of October, 1968.
Resolved, That the statement adopted by the Arkansas Pollution Control
Commission on October 25, 1968 concerning implementation of the Arkansas
Water Quality Standards and the Federal Water Pollution Control non-
degradation policy is hereby amended by adding a new paragraph immediate-
ly prior to the concluding paragraph thereof reading as follows:
Be It Further Resolved, That it is recognized that certain of the waters of the
State possess an existing quality which is better than established standards.
The quality of these waters will be maintained unless and until it has been
affirmatively demonstrated to the Commission that any reduction in quality
is justifiable as a result of necessary economic or social development.
Resolved the 28th day of March, 1969.
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* Controlled by Arkansas Department of Health
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IMPLEMENTATION PLAN
The "action" plan of the standards is the plan of implementation ana en-
forcement. For example, Arkansas regulations provide that the discharge of
wastes into interstate waters or portions thereof, which reduces the quality
of such waters below the water quality criteria established by regulation
(whether the matter causing or contributing to such reductions is dis-
charged directly into such waters or reaches such waters after discharge into
tributaries of such waters) is subject to the abatement and enforcement pro-
visions of the Arkansas Water and Air Pollution Control Act.
The implementation plan sets forth the requirements for treatment and/or
control of all conventional municipal and industrial waste discharges that
affect Arkansas waters. It also specifies the time within which treatment of
wastes is to be accomplished, and contains programs for dealing with other
water pollution control problems. In general, the Arkansas standards call for
a level of waste treatment or control that must be consistent with the state-
of-the-art and best practicable industry standards, the minimum requirement
being secondary treatment or equivalent, giving due regard to quality and
flow of the receiving waters, the present, future and potential uses of such
waters, economic feasibility, and other relevant factors. The installation of
secondary treatment facilities or their equivalent for all municipal and in-
dustrial wastes is scheduled to be completed by the end of 1972. Detailed
information on the treatment requirements for any particular waste water
may be obtained from the Arkansas Department of Pollution Control and
Ecology.
This Department is composed of ten members; six of these represent various
state agencies directly concerned with pollution: the Department of Health,
Game and Fish Commission, Oil and Gas Commission, Soil and Water Con-
servation Commission, Geological Commission, and State Forestry Commis-
sion. The other four members are appointed by the Governor with the
approval of the State Senate, and represent industry, municipalities, mining,
and agricultural and livestock interests in the State.
Arkansas statutes provide for the control of water pollution on the basis of a
permit system. Under this system an industry or municipality must submit
complete plans and specifications for waste treatment facilities to the
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Department for approval and issuance of a permit before construction may
commence. Industries are required to submit a process flow sheet showing
each step in the industrial process, and a materials balance showing types
and quantities of materials that go into and leave each step in the industrial
process, including flow rates of water for present and proposed future opera-
tions. Industrial treatment facilities, as well as municipal, are checked as
soon after construction as possible to assure compliance with the permit
issued and to determine if efficiency of waste treatment is adequate.
The basis for most Department enforcement and corrective activity is the
basin survey. This is a part of a routine and continuous observation to check
the efficiency of waste treatment plants and their effects on the receiving
streams. The waste survey consists of twenty-four hour composite sampling
of each municipal and industrial waste stream for five days with appropriate
chemical analysis of each sample. Flows are measured continuously for ten
days in order to obtain averages and extremes. Where treatment facilities
exist, sampling is accomplished at each stage of treatment in order to obtain
efficiencies and locate possible problems. Streams that receive these wastes
are sampled on four different days above each point of discharge and at sev-
eral points below, covering a sufficient distance to determine the nature and
the extent of any damage to the watercourse. In addition to chemical analysis
of the stream, a complete biological analysis is performed including classifica-
tion and counts of plankton, bottom organisms, bacteria, and fish life. Upon
completion of the field work, all engineering, chemical, and biological data
is tabulated and a detailed report including procedures, results, and recom-
mendations is submitted for Department action.
The State has been divided into eight districts based on concentrations of
potential pollution sources. Field inspectors are responsible for periodic
spot surveys of all significant wastewater discharges in their district plus
monitoring of interstate and other streams for compliance with the standards.
The Arkansas Game and Fish Commission has at least two wildlife officers
in each of the State's seventy-five counties who are on the alert for pollution,
especially if it results in fish kills. The Fisheries Division also monitors the
temperature of trout streams.
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When abatement action becomes necessary, the sequence usually follows
this pattern:
a. Complete basin survey.
b. Public Hearing.
c. Issuance of a general order.
d. A "show cause" hearing.
e. Issuance of a specific order.
f. Litigation.
For specific cases in response to complaints, or for irregularities found dur-
ing routine inspection, or because of predicted overloads based on treatment
plant files, the following sequence is normal:
a. Spot survey.
b. A "show cause" hearing.
c. Issuance of specific order.
d. Litigation.
In the event of pollution immediately endangering the health and welfare of
the public, the cease and desist order is issued immediately followed directly
by litigation, if necessary.
The Arkansas portion of the Arkansas River navigation project will present
potential pollution problems that involve barge accidents and oily and other
discharges from vessels. Such problems will be handled in a manner similar
to fish kills, depend ing on notification and reporting by wildlife officers of the
Arkansas Game and Fish Commission, field inspectors of the Arkansas Depart-
ment of Pollution Control and Ecology, lock and dam personnel, marina
operator and other private citizens. Sanitary discharges from navigation ves-
sels are presently controlled statewide by the Arkansas Department of Health
under Rules and Regulations Pertaining to Marine Toilets and Disposal of
Sewage from Boats.
Of major importance is water quality degradation caused by natural brine
emissions and by disposal of oil field brines in the watersheds of the Arkansas,
Ouachita, and Red Rivers. In the Arkansas and Red Rivers, excessive mineral
content results primarily from natural brine emissions upstream from the
Arkansas boundary and eliminates use of these waters for drinking purposes.
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The Arkansas Department of Pollution Control and Ecology has implement-
ed a successful program for abatement of mineral pollution from oil field
brines in the Ouachita and Red River basins. Additionally, Federal programs
now are under way to correct natural mineral pollution in the Arkansas and
Red River watersheds but the results of these programs will not be known
for several years.
The Arkansas Department of Pollution Control and Ecology has adopted a
state-wide policy to eliminate water quality problems arising from combined
sewer systems. The Department policy is one of allowing no new combined
sewers while eliminating present systems by scheduled construction projects.
The Department has also adopted a sewer use ordinance which limits by
name the amounts and types of pollutional materials which can be discharged
into the system.
The Arkansas Soil and Water Conservation Commission administers the Small
Watershed Program which alleviates siltation of surface waters from land
runoff.
Other existing water quality problems are acid mine drainage, agricultural
feedlots and runoff, irrigation return flows, and nutrients from municipal
sewage treatment plant discharges. As the technology for feasible solutions
improves, progress will be made toward abatement of these problems to en-
hance the quality of Arkansas waters.
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EXPLANATION OF TERMS
1. Bacteria - For many years the best indicator of the sanitary quality of
water has been an estimate of the density of coliform bacteria. The
results of this test are not specific in that many bacteria common to the
soil are included; therefore many agencies have not been satisfied with
criteria based on this test. More recently, tests have been developed for
the determination of fecal coliform and fecal streptococci. However,
sufficient information has not been developed to properly evaluate the
results of these tests. Until criteria are developed which are more specific
the Arkansas Department of Pollution Control and Ecology shall use
the criteria given in Regulation No. 2 for bacteria.
2. Dissolved Oxygen (D.O.) — Due to the diurnal fluctuations of dissolved
oxygen in streams, the minimum dissolved oxygen value shall apply at
or near the time of the average concentration in the stream, taking into
account the diurnal fluctuations.
3. Ephemeral Streams — Those streams that have no natural flow on the
average of one (1) day in two (2) years.
4. Interstate Streams - All major interstate streams have been included in
the listing in Regulation 2. Others not included but which were listed
in the Federal Inventory will fall under the normal Department pollu-
tion control program under Act 472.
5. Milliliter — One-thousandth of a liter. One liter is equal to 1.06 quarts.
6. pH - the pH value indicates the relative intensity of acidity or alkalinity
of water, with the neutral point at 7.0. Values lower than 7.0 indicate
the presence of acids; above 7.0, the presence of alkalies.
7. Ppm - Parts per million, also referred to as milligrams per liter (mg/1.).
This is a unit for expressing the concentration of any substance by
weight, usually as grams of substance per million grams of solution. Since
a liter of water weighs one kilogram at a specific gravity of 1.0, one part
per million is equivalent to one milligram per liter.
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8. Secondary Treatment — The removal of practically all suspended solids
and the reduction of the biochemical oxygen demand at all times by at
least eighty-five (85) percent, and may include the in-plant control of
industrial wastes as prescribed by the Department.
9. Temperature — The limitation of temperature increase or decrease of
5° Fahrenheit from natural temperature conditions is so that a thermal
shock barrier is prevented within the stream.
10. Stream Flow — On certain streams present low flows will be increased
by minimum releases from future control structures.
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STATE AND FEDERAL AGENCY ADDRESSES
A. STATE
Arkansas Department of Pollution Control and Ecology
8001 National Drive
Little Rock, Arkansas 72209
B. FEDERAL
Environmental Protection Agency
Region VI
1600 Patterson, Suite 1100
Dallas, Texas 75201
Environmental Protection Agency
Washington, D. C. 20460
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