U.S. ENVIRONMENTAL PROTECTION AGENCY
           NATIONAL EUTROPHICATION SURVEY
                    WORKING PAPER SERIES
                                         REPORT
                                          ON
                                      BU\CKFISH LAKE
                              CRITTENDEN AND ST, FRANCIS COUNT
                                      EPA REGION VI
                                   WORKING PAPER No,

 CORVALLIS ENVIRONMENTAL RESEARCH LABORATORY - CORVALLIS, OREGON
                             and
ENVIRONMENTAL MONITORING & SUPPORT LABORATORY - LAS VEGAS, NEVADA
 699-440

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                             REPORT
                               ON
                         BLACKFISH LAKE
                          AT* ST, FRANCIS COUNTIES
                          EPA REGION VI
                      WORKING PAPER No,
   WITH THE COOPERATION OF THE
ARKANSAS DEPARTMENT OF POLLUTION
       CONTROL AND ECOLOGY
             AND THE
     ARKANSAS NATIONAL GUARD
          JANUARY, 1977

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          REPORT ON BLACKFISH LAKE

CRITTENDEN AND ST. FRANCIS COUNTIES, ARKANSAS

                EPA REGION VI


                     by

       National Eutrophication Survey

      Water and Land Monitoring Branch
     Monitoring Applications Laboratory
Environmental Monitoring & Support Laboratory
              Las Vegas, Nevada

                     and

        Eutrophication Survey Branch
 Corvallis Environmental Research Laboratory
              Corvallis, Oregon
            Working Paper No. 481
     OFFICE OF RESEARCH AND DEVELOPMENT
    U.S.  ENVIRONMENTAL PROTECTION AGENCY

                January 1977

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                               CONTENTS

                                                       Page
Foreword                                                ii
List of Arkansas Study Lakes                            iv
Lake and Drainage Area Map                               v
Sections
  I. Conclusions                                         1
 II. Lake and Drainage Basin Characteristics             4
III. Lake Water Quality Summary                          6
 IV. Nutrient Loadings                                  11
  V. Literature Reviewed                                15
 VI. Appendices                                         16

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                                  11


                               FOREWORD
     The National Eutroph1cat1on Survey was Initiated  in  1972  in
response to an Administration commitment to Investigate the  nation-
wide threat of accelerated eutrophicatlon to freshwater lakes  and
reservoirs.

OBJECTIVES

     The Survey was designed to develop, in conjunction with state
environmental agencies, information on nutrient sources,  concen-
trations, and impact on selected freshwater lakes as a basis for
formulating comprehensive and coordinated national,  regional,  and
state management practices relating to point source  discharge
reduction and nonpoint source pollution abatement in lake water-
sheds.

ANALYTIC APPROACH

     The mathematical and statistical procedures selected for  the
Survey's eutrophicatlon analysis are based on related  concepts
that:

     a.   A generalized representation or model relating
          sources, concentrations, and impacts can be
          constructed.

     b.   By applying measurements of relevant parameters
          associated with lake degradation, the generalized
          model can be transformed Into an operational
          representation of a lake, its drainage basin, and
          related nutrients.

     c.   With such a transformation, an assessment  of the
          potential for eutrophlcation control can be  made.

LAKE ANALYSIS

     In this report, the first stage of evaluation of  lake and
watershed data collected from the study lake and its drainage
basin is documented.  The report is formatted to provide  state
environmental agencies with specific information for basin
planning [§303(e)], water quality criteria/standards review
L§303(c)], clean lakes [§314(a,b)], and water quality  monitoring
[§106 and §305(b)] activities mandated by the Federal  Water
Pollution Control Act Amendments of 1972.

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                                 ill
    Beyond the single lake analysis, broader based correlations
between nutrient concentrations (and loading) and trophic condition
are being made to advance the rationale and data base for refine-
ment of nutrient water quality criteria for the Nation's freshwater
lakes.  Likewise, multivariate evaluations for the relationships
between land use, nutrient export, and trophic condition, by lake
class or use, are being developed to assist in the formulation
of planning guidelines and policies by the U.S. Environmental  Protection
Agency and to augment plans implementation by the states.

ACKNOWLEDGMENTS

    The staff of the National Eutrophication Survey (Office of
Research and Development, U.S. Environmental Protection Agency)
expresses sincere appreciation to the Arkansas Department of Pollution
Control and Ecology for professional involvement, to the Arkansas
National Guard for conducting the tributary sampling phase of the
Survey, and to those Arkansas wastewater treatment plant operators
who provided effluent samples and flow data.

    The staff of the Water Division of the Arkansas Department
of Pollution Control and Ecology provided Invaluable lake documentation
and counsel during the Survey, reviewed the preliminary reports
and provided critiques most useful 1n the preparation of this Working
Paper series.

    Major General Thomas C. Armstrong, the Adjutant General of
Arkansas, and Project Officer Colonel Lavaun M. James, who directed
the volunteer efforts of the Arkansas National Guardsmen, are also
gratefully acknowledged for their assistance to the Survey.

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                                   IV
                    NATIONAL EUTROPHICATION SURVEY

                              STUDY LAKES

                           STATE OF ARKANSAS
LAKE NAME

Beaver

Blackfish

Blue Mountain

Bull Shoals


Catherine

Chicot

DeGray

Erling

Grand

Greer's Ferry

Hamilton

Millwood


Nimrod

Norfork

Ouachita

Table Rock
  COUNTY

Benton, Carroll, Washington

Crittenden, St.  Francis

Logan, Yell

Baxter, Boone, Marion
(Taney, Ozark in MO)

Garland, Hot Spring

Chicot

Clark, Hot Spring

Lafayette

Chicot

Van Buren, Cleburne

Garland

Hempstead, Howard,
Little River, Sevier

Perry, Yell

Baxter, Fulton (Ozark in MO)

Garland, Montgomery

Boone, Carroll (Barry,
Taney in MO)

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                                      \\  /
BLACKFISH LAKE
  Tributary Sampling Site
X Lake Sampling Site
                                            Map Location

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                   REPORT ON BLACKFISH LAKE,  ARKANSAS
                            STORE! NO. 0502

I.    CONCLUSIONS
     A.    Trophic Condition:*
               Based upon field observations  and Survey data,  Blackfish
          Lake is considered hypereutrophic.   Chlorophyll  .a  values
          ranged from a low of 1.9 yg/1 in the spring  to a high  of
          70.1 yg/1 in the fall with a mean of 19.8 yg/1.   The mean
          Secchi disc transparency was only 9.8 cm (3.9 inches).
          Potentials for primary production as measured by algal  assay
          control yields were extremely high.   Of the  16 Arkansas lakes
          sampled in 1974, none had higher median total  phosphorus,
          dissolved orthophosphorus, or inorganic nitrogen levels than
          Blackfish Lake.
               Survey limnologists reported large amounts of floating
          debris and oil scum over the water  surface.   Emergent  trees
          and branches were observed throughout most of the  lake.
     B.    Rate-Limiting Nutrient:
               Algal assay results indicate that Blackfish Lake  is
          limited by available nitrogen.   Spikes with  nitrogen or
          nitrogen and phosphorus  simultaneously resulted in increased

     *See Appendix E

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     assay yields.  The addition of phosphorus alone did not produce
     a growth response.  The ratios of total  available nitrogen to
     orthophosphorus (N/P) in the lake data suggest near-col imitation
     in the spring, nitrogen limitation in the summer, and phosphorus
     limitation in the fall.
C.   Nutrient Controllability:
     1.    Point sources -
               There are no known point sources impacting Blackfish
          Lake.  The present phosphorus loading of 69.22 g/m2/yr is
          40 times that proposed by Vollenweider (1975) as eutrophic
          for a lake of such volume and retention time.  Although
          Vollenweider's model may not apply to water bodies with
          short hydraulic retention times (eight days for Blackfish
          Lake) the loading is excessively high; regardless of the
          applicability of the model, it is certain that the trophic
          condition of Blackfish Lake will continue to deteriorate if
          the present loading rate is maintained.
     2.    Nonpoint sources -
               Nonpoint sources contributed all the loading reaching
          Blackfish Lake.  Measured tributaries contributed 99.0% of the
          total phosphorus load.  Tributary C-l (Unnamed Stream) con-
          tributed 84.8%, while ungaged tributaries contributed 1.0% of
          the total load.
               The nonpoint phosphorus and nitrogen exports for the two
          tributaries to Blackfish Lake (Section IV-D) are extremely

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high.  These tributaries drairi a vast agricultural  water-
shed and are the result of a long array of interconnecting
ditches and streams.  Further investigation is necessary to
determine the effects of this agricultural runoff into the
lake and of any unknown sources contributing loading before
recommendations for lake improvement can be proposed.

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II.   LAKE AND DRAINAGE BASIN CHARACTERISTICS

          Lake and drainage basin characteristics are itemized  below.

     Lake morphometry values were provided by the Arkansas  Department

     of Pollution Control  and Ecology.   Tributary flow data were  pro-

     vided by the Arkansas District Office of the U.S. Geological

     Survey (USGS).  Outlet drainage area includes the lake surface

     area.  Mean hydraulic retention time was obtained by dividing

     the lake volume by the mean flow of the outlet.   Precipitation

     values are estimated  by methods as outlined in National  Eutro-

     phication Survey (NES) Working Paper No. 175.  A table of  metric/

     English conversions is included as Appendix A.

     A.   Lake Morphometry:

          1.   Surface area:  1.62 km .
          2.   Mean depth:  1.8 meters.
          3.   Maximum depth:  6.7 meters.
          4.   Volume:  2.964 x 105 m3.
          5.   Mean hydraulic retention time:  8 days.

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B.   Tributary and Outlet:
     (See Appendix B for flow data)

     1.    Tributaries -

                                        Drainage       Mean flow
          Name                          area(km )      (m /sec)

          C-l Unnamed Stream             247.3           3.65
          D-l Ditch #1                    37.0           0.54

          Minor tributaries and
          immediate drainage -             2.8           0.06

                    Totals               287.1           4.25

     2.    Outlet - B-l Blackfish Ditch   288.8           4.25

C.   Precipitation:

     1.    Year of sampling:  ?
     2.    Mean annual:  ?

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III.  LAKE WATER QUALITY SUMMARY
          Blackfish Lake was sampled three times  during  the  open-
     water season of 1974 by means of a  pontoon-equipped Huey  heli-
     copter.   Each time, samples for physical  and chemical parameters
     were collected from three stations  on the lake  (Station 03  was
     sampled  only twice) and from one or more  depths at  each station
     (see map,  page v).  During each visit,  depth-integrated samples
     were collected from each station for chlorophyll  a_ analysis and
     phytoplankton identification and enumeration.   During the first
     visit,  18.9-liter depth-integrated  samples were composited  for
     algal  assays.  Maximum depths sampled were 1.5  meters at  Station
     01,  1.5  meters at Station 02, and the surface at Station  03.  For
     a more  detailed explanation of NES  methods,  see NES Working Paper
     No.  175.
          The results obtained are presented in full in  Appendix C
     and  are  summarized in III-A for waters at the surface and at the
     maximum  depth for each site.  Results of  the phytoplankton  counts
     and  chlorophyll ^determinations are included in III-B.  Results
     of the  limiting nutrient study are  presented in III-C.

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A.    PHYSICAL  AND CnE"ICAL CHARACTER IST ICS

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                                   8
B.   Biological Characteristics:

     1.    Phytoplankton -
          Sampling
          Date

          03/26/74
          06/04/74
          10/16/74
Dominant
Genera

1.   Euglena
2.   Chroomonas
3.   Nitzschia
4.   Phormidium
5.   Gyrosigma

    Other genera

         Total
1.
2.
3.
4.
5.
Cryptomonas
Flagellates
Trachelomonas
Euglena
Lepocinclis
1.
2.
3.
4.
5.
Other genera

     Total

Nitzschia
Cryptomonas
Chlamydomonas
Euglena
Dactylococcopsis

Other genera

     Total
 Algal
 Units
 per ml

   116
    93
    93
    46
    23

   117

   488

   475
   238
   238
    59
    60

    59

 1,129

 1,767
 1,556
 1,346
 1,136
 1,093

 4.627

11,525

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     2.    Chlorophyll  a^ -
          Sampling
          Date

          03/26/74
          06/04/74
          10/16/74
          Station
          Number

            01
            02
            03

            01
            02
            03

            01
            02
            03
               Chlorophyll  a_
               (yg/D	

                    1.9
                    2.8
                    8.8

                   11.3
                    6.6
                   13.5

                   70.1
                   43.2
C.    Limiting Nutrient Study:

     1.   Autoclaved, filtered,  and nutrient spiked

          a.   03/26/74
          Spike (mg/1)

          Control
          0.05 P
          0.05 P + 1.0  N
          1.00 N

          b.    10/16/74
Ortho P
Cone, (mg/1)

  0.175
  0.225
  0.225
  0.175
                         Ortho P
          Spike(mg/l)     Cone, (mg/1)
          Control
          0.05 P
          0.05 P + 1.0 N
          1.00 N
  0.062
  0.112
  0.112
  0.062
Inorganic N
Cone, (mg/1)

  0.917
  0.917
  1.917
  1.917
Inorganic N
Cone, (mg/1)

  0.386
  0.386
  1.386
  1.386
Maximum Yield
(mg/1-dry wt.)

     28.4
     25.8
     53.7
     51.5
Maximum Yield
(mg/1-dry wt.)

     11.9
     12.9
     32.2
     19.3

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                                   10
2.    Discussion -
          The control yield of the assay alga,  Selenastrum capri-
     cornutum, indicates that Blackfish Lake had a high potential  for
     primary productivity during the spring and fall  sampling periods.
     The assay samples were nitrogen limited at those times as indicated
     by the increased yield of the test alga in response to an addition
     of inorganic nitrogen.  Spikes with phosphorus and nitrogen simul-
     taneously resulted in a maximum yield.  Spikes with phosphorus
     alone did not produce a response significantly beyond the control
     yield.
          The mean N/P ratio in the spring lake data  was 14/1, suggesting
     near col imitation by the two nutrients.  An N/P  ratio of 14/1 or
     greater generally reflects phosphorus limitation.   The N/P ratio
     for the summer was 6/1, indicating nitrogen limitation, and 18/1
     for the fall, indicating phosphorus limitation.

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                                 11
IV.   NUTRIENT LOADINGS
     (See Appendix D for data)

          For the determination  of  nutrient  loadings,  the Arkansas

     National  Guard collected monthly near-surface  grab  samples from

     each of the tributary sites indicated on  the map  (page  v), ex-

     cept for the high runoff months  of  March  and April  when  two  sam-

     ples were collected.   Sampling was  begun  in June  1974, and was

     completed in May 1975.

          Through an interagency agreement,  stream  flow  estimates for

     the year of sampling  and a  "normalized" or average  year  were pro-

     vided by the Arkansas District Office of  the USGS for the tribu-

     tary sites nearest the lake.

          In this report,  nutrient  loads for sampled tributaries  were

     determined by using a modification  of a USGS computer program for

     calculating stream loadings.   Nutrient  loads indicated for tribu-

     taries are those measured minus  known point source  loads, if any.

          Nutrient loadings for  unsampled "minor tributaries  and  imme-

     diate drainage" ("ZZ" of USGS) were estimated  by  using the mean

     annual nutrient loads,  in  kg/km^/yr, in Unnamed Stream and Ditch #1,

     at Stations C-l and D-l, and multiplying  the means  by the ZZ area

     in km .

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                                 12
A.   Waste Sources:

     1.   Known municipal - None
     2.   Known industrial - None

B.   Annual Total Phosphorus Loading - Average Year:

     1.   Inputs -
                                                            % of
          Source                             kg P/yr        total

          a.   Tributaries (nonpoint load) -

               C-l Unnamed Stream            95,065          84.8
               D-l Ditch #1                  15,895          14.2

          b.   Minor tributaries and immediate
               drainage (nonpoint load) -     1,140           1.0

          c.   Known municipal STP's - None

          d.   Septic tanks* -                    5          <0.1

          e.   Known industrial - None

          f.   Direct precipitation** -          30          <0.1

                              Totals        112,135         100.0

     2.   Outlet - B-l Blackfish Ditch       92,130

     3.   Net annual P accumulation -        20,005
      *Estimate based on 26 lakeside residences.
     **Estimated (see NES Working Paper No. 175).

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                                 13
C.   Annual Total Nitrogen Loading - Average Year:
     1.    Inputs -
                                                            % of
          Source                             kg N/yr        total
          a.   Tributaries (nonpoint load) -
               C-l Unnamed Stream            340,320         87.1
               D-l Ditch #1                   44,930         11.5
          b.   Minor tributaries and immediate
               drainage (nonpoint load) -      3,625          0.9
          c.   Known municipal STP's - None
          d.   Septic tanks* -                   275          0.1
          e.   Known industrial - None
          f.   Direct precipitation** -        1,750          0.4
                              Totals         390,900        100.0
     2.    Outlet - B-l Blackfish Ditch       303,920
     3.    Net annual N accumulation -         86,980
      *Estimate based on 26 lakeside residences.
     **Estimated (see NES Working Paper No. 175).

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                                 14
D.   Mean Annual Nonpoint Nutrient Export by Subdrainage Area:
                                               o              2
     Tributary                          kg P/knr/yr    kg N/km /yr

     Unnamed Stream                         384           1,376
     Ditch #1                               430           1,214



E.   Yearly Loadings:

          In the following table, the existing phosphorus annual

     loading is compared to the relationship proposed by Vollenweider

     (1975).  Essentially, his eutrophic loading is that at  which

     the receiving waters would become eutrophic or remain eutrophic;

     his oligotrophic loading is that which would result in  the

     receiving water remaining oligotrophic or becoming oligotrophic

     if morphometry permitted.  A mesotrophic loading would  be

     considered one between eutrophic and oligotrophic.

          Note that Vollenweider's model may not apply to lakes  with

     short hydraulic retention times or in which light penetration is

     severely restricted  by high concentrations of suspended solids

     in the  surface waters.
                              Total Yearly
                           Phosphorus Loading
     Estimated loading for Blackfish  Lake                       69.22

     Vollenweider's eutrophic loading                           1.80

     Vollenweider's oligotrophic loading                        0.90

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                            15
LITERATURE REVIEWED

U.S. Environmental Protection Agency.  1975.  National  Eutro-
  phication Survey Methods 1973-1976.  Working Paper No. 175,
  National Environmental Research Center, Las Vegas, Nevada,
  and Pacific Northwest Environmental Research Laboratory,
  Corvallis, Oregon.

Vollenweider, R. A.  1975.  Input-Output Models With Special
  Reference to the Phosphorus Loading Concept in Limnology.
  Schweiz. Z. Hydrol.   37:53-84.

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                                16






VI.  APPENDICES
                             APPENDIX  A



                         CONVERSION  FACTORS

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                CONVERSION FACTORS





Hectares x 2.471 = acres



Kilometers x 0.6214 = miles



Meters x 3.281 = feet


                         -4
Cubic meters x 8.107 x 10   = acre/feet



Square kilometers x 0.3861 '-- square miles



Cubic meters/sec x 35.315 = cubic feet/sec



Centimeters x 0.3937 - inches



Kilograms x 2.205 - pounds



Kilograms/square kilometer x 5.711 - Ibs/square mile

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    APPENDIX B



TRIBUTARY FLOW DATA

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                                   TRIBUTARY FLCU INFORMATION FOR ARKANSAS

LAKE CODE 050?     aLACKFISH LAKE

     TOTAL DRAINAGE AREA OF LAKE     ?sa.e
                                       03/02/77
          SUB-DRAINAGE
             NORMALIZED FLOWS(CMS)
TRIBUTARY
0502A1
0502B1
0502C1
0502D1
0502ZZ
AREA (SO KM)
288.8
288.8
2*7.3
37.0
*.*
JAN
0.0
6.51
5.58
0.83
0.096
F£B
0.0
8. 1C
6.9*
1.03
0.119
MAR
0.0
7.76
6.65
0.99
0.113
APR
0.0
6.26
5.38
0.80
0.091
MAY
0.0
5.72
*.90
0.72
0.082
JUN
0.0
3.00
2.58
0.38
0.0*5
JUL
0.0
2.50
2.15
0.32
0.037
AUG
0.0
l.*0
1.20
0.18
0.021
SEP
0.0
l.*5
1.2*
0.18
0.022
OCT
0.0
1.25
1.07
0.16
0.013
NOV
0.0
3.26
2.80
O.*l
0.0*8
DEC
0.0
*. 1 1
3.51
0.52
0.059
MEAN
0.0
*.25
3.65
0.5*
0.062
                        TOTAL DRAINAGE AREA OF LAKE =
                        SUM OF SUB-DRAINAGE AREAS   =
       288.8
       288.8
     MEAN MONTHLY FLOWS AND DAILY FLOWSICMSI

TRIBUTARY   MONTH   YEAR    MEAN FLOW  DAY

0502A1
FLOW  DAY
050281
6
7
8
9
10
11
12
1
2
3
*
5
6
7
8
9
10
11
12
1
2
3
*
5
7*
7*
7*
7*
7*
7*
7*
75
75
75
75
75
7*
7*
7*
7*
7*
7*
7*
75
75
75
75
75
                                                                   SUMMARY
         TOTAL FLOW IN  =
         TOTAL FLOW OUT =
            51.28
            51.32
FLOW  DAY
FLOW
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
5.578
2.29*
2.9*5
1.586
0.300
3.625
1.926
5.069
7.589
15.688
17.500
3.030
22
20
17
21
19

22
18
23
8
5
19
22
20
17
21
19
2*
22
18
23
8
5
18
0.0
0.0
0.0
0.0
0.0

0.0
0.0
0.0
0.0 22
0.0 19
0.0
1.982
1.0*8
3.*83
l.*87
0.728
12.573
0.991
7.617
19.«22
7.617 22
26.901 19
6.456 19









0.0
0.0










19.822
2*. 806
6.286

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                                    TRIBUTARY FLO* INFORMATION  FOR  ARKANSAS
                                                                                            02/02/77
LA«;E CODE 050?
dLACivFISrt LAKE
     ^EAN MONTHLY F(_OWS  AND  DAILY FLOwS(CMS)




TRIBUTARY   MONTH    YEAR    MEAN FLO*  DAY




0502C1
0502D1
0502ZZ
6
7
8
9
10
1 1
12
1
?
3
u
5
6
7
8
9
10
11
12
1
?
3
4
5
6
7
8
9
10
11
12
1
2
3
it
5
74
74
74
74
74
74
74
75
75
75
75
75
74
74
74
74
74
74
74
75
75
75
75
75
74
74
74
74
74
74
74
75
75
75
75
75
                                 FLO*   DAY
                                                   FLO*  OAY
                                                                      FLOW
4.786
1.982
2.520
1.359
0.258
3.115
1.642
4.361
6.513
13.451
15.065
2.605
0.708
0.283
0.368
0.198
0.037
0.453
0.255
0.651
0.963
2.010
2.209
0.385
0.085
0.028
0.057
0.028
0.006
0.057
0.028
0.057
0.113
0.227
0.261
0.042
22
20
17
21
19
24
24
18
23
8
5

22
20
17
21
19
24
22
18
23
a
5
19
22
20
17
21
19
24
22
18
23
8
5
18
1.699
0.906
2.973
1.274
0.623
10.760
0.850
6.513
16.990
6.513 22
23.050 19

0.255
0.142
0.453
0.198
0.085
1.614
0.127
0.991
2.549
0.963 22
3.455
0.793
0.028
0.0
0.057
0.014
0.020
0.020
0.014 24
0.113
0.283
0.142 22
0.425 19
0.096 19









16.990
21.238










2.549








0.014


0.283
0.396
0.096

-------
        APPENDIX C



PHYSICAL AND CHEMICAL DATA

-------
STDtfET RETRIEVAL OATF 77/02/03
                                                                  050201
                                                                 35 07 45.0  090  27  25.0  3
                                                                 05123    ARr^ANSAS
                                                                                           100691
/TYPA/AM8NT/LAKE
DATE TIME DEPTH
F30M OF
TO
74/03/26
74/06/04

74/10/16

DATE
FROM
TO
74/03/26
74/06/04

74/10/16
DAY FEET
10 50 0000
11 15 0000
11 15 0005
11 55 0000

TIME DEPTH
OF
DAY FEET
10 50 0000
11 15 0000
11 15 0005
11 55 0000
00010
HATER
TEMP
CENT
9.1
22.4
22.1

00665
PMOS-TOT

MG/L P
0.457
0.423
0.366
0.274
11EPALES 04001002
0006 FEET DEPTH CLASS 00
00300 00077 00094 00400 00410 00610 00625 00630 00671
DO T«ANSP CNDUCTVY PH T ALK NH3-N TOT KJEL N02&NG3 PrtOS-DIS
SECCHI FIELD CAC03 TOTAL N M-TOTAL ORTrlO
MG/L INCHES MIC30MHO 5U MG/L MG/L MG/L MG/L MG/L P
8.6 4
2
3.2
6.8 8
32217 00031
CHLfiPHYL INCDT LT
A REMNING
UG/L PERCENT
1.9
11.3

70.1
35 7.30 36 0.450 1.500 0.640 0.09S
88 6.60 34 0.180 1.500 1.580 0.082
87 6.10 18 0.230 1.400 1.540 0.091
7.70 124 0.140 1.400 0.040 0.032









-------
STORET RETRIEVAL DATE 77/02/02
                                                                   050202
                                                                  35  07  08.0  090  26 35.0 3
                                                                  CLuCKFISH L*KE
                                                                  05123    Arti\ANSAS
                                                                                           100691
/TYPA/AMBNT/LAKF.
                                                                  11EPALES             04001002
                                                                   0006  FEET   DEPTH   CLASS 00
DATE TIME DEPTH
FROM OF
TO DAY FEET
74/03/26 11 00 0000
74/06/04 11 35 0000
11 3? 0005
74/10/16 12 10 0000

DATE TIME DEPTH
FROM OF
TO DAY FEET
74/03/26 11 00 0000
74/06/04 11 35 0000
11 35 0005
74/10/16 12 10 0000
C0010
WATER
TEMP
CENT
8.9
22.2
22.1

00665
PHOS-TOT

MG/L P
0.826
0.570
0.405
0.238
00300 00077 00094
DO TRANSP CNOUCTVY
SECCHI FIELD
MG/L INCHES MICROMHO
7.2 4 60
3 95
3.0 88
6.0 6
32217 00031
CHLRPHYL INCDT LT
A REMMNG
UG/L PERCENT
2.8
6.6

43.2
00400 00410 00610 00625 00630 00671
PH .. T ALK NH3-N TOT KJEL N02^M03 PHOS-DIS
CAC03 TOTAL N N-TOTAL ORTHO
SU MG/L MG/L MG/L Mli/L MG/L P
6.80 24 0.260 1.300 0.690 0.094
6.40 31 0.160 1.100 1.410 0.098
6.25 24 0.230 1.300 1.790 0.090
7.55 100 0.090 1.900 0.030 0.019









-------
STOSET RETRIEVAL OATF. 77/03/02
/TYPA/AM8NT/LAKE
  DATE
  FROM
   TO
TIME DEPTH
 OF
DAT1  FEET
74/03/26 \l IS 0000
74/06/04 II «55 0000
 00010
*ATER
 TEMP
 CENT
00300     UOC77     00094
 DO      TRANSP   CNDUCTVY
         SECCHI   FIELD
MG/L     INCHES   MICROMHO
                          4.0
                                                                  050203
                                                                 35 06 35.0 090  27  36.0  3
                                                                 BLACisFISri L.AKE
                                                                 05035   AKKANSAS
                                                                                           1006*1
                                                        11EPALES             04001002
                                                         0001 FEET  DEPTH   CLASS  00
00400
PH

su
7.00
6.30
00410
T ALK
CAC03
MG/L
72
18
00610
NH3-N
TOTAL
MG/L
0.580
0.220
00625
TOT KJEL
N
MG/L
1.300
1.500
00630
N02&N03
N-TOTAL
MG/L
0.790
2.010
00671
PHOS-DIS
ORTHO
MG/L P
0.063
0.133
                      00665     32217     00031
  DATE   TIME DEPTH PHOS-TOT  CHLRPHYL  INCDT LT
  FROM    OF                     A      REMNING
   TO    DAY  FEET   MG/L P     UG/L    PERCENT

74/03/26 11 15 0000    1.150       8.8
74/06/04 11 55 0000    0.426      13.5

-------
  APPENDIX D
TRIBUTARY DATA

-------
NiTL = UT-OPH!C
- P 4 - L. 4 S V = '3 S 5
                     E  75/11/23
               *-T! ON
 050241
3b 06 50. 1 090
                                                                                   25  45.0
                                                                   05 '     15 -
                                                                   J/5LACKFISH
                                                                   XING 4T 5" Tt P CF
                                                                                         211120*
                                                                                        0000  F = £T
74/07/20
74/08/17
74/09/21
74/1O/19
74/12/22
75/01/18
75/02/23
75/03/08
75/03/22
75/04/U5
75/04/19
75/05/19
          v -
         04.Y  F

         13 45
         10 20
         09 15
         09 20
         14 30
         OS 45
         09 00
         09 15
         08 45
         09 15
         10 20
         09 15
         15 00
00630
NQ2EN03
N-T}T4L
MO/I.
0.024
0.032
1.700
0.040
0.504
0.024
0.200
0.384
0. 112
0.300
0.290
0.170
0.200
C')625
TjT KJ61
M
MG/L
2.000
5.000
2. 1C!
1.100
3.400
1.100
2.500
5.000
1.6CO
1.850
1.850
3.300
2.500
00610
K'H3-N
TOTAL
MG/ L
0.030
0.150
0.065
0.015
0.170
0.045
0. 136
0.040
0.315
0.110
0.055
0.07C
0.025
30671
pH3S-DI S
7-PTHO
MG/L P
0.130
0.420
0.300
0.055
0.110
0.140
0. 180
0.256
0.224
0.289
0.125
0.145
0.160
00665
PHOS-TJT

MG/L P
0.590
I. 100
0.980
0.200
0.560
0.370
0.790
2. 700
0.900
0.910
0.750
1.450
0.690

-------
                    '~  75/11/23
7t/Ob/22
74/07/20
74/03/17
74/09/21
74/10/19
74/11/24
74/12/22
75/01/18
75/02/23
75/03/08
75/03/22
75/04/05
75/04/19
75/05/19
13 30
09 30
09 0?
09 00
14 30
11 15
09 30
09 20
09 00
08 30
09 00
10 00
09 30
14 30
                                                                    D5J231
                                                                   35  Of 30.0 090 27 27.0
                                                                   5LAC<=!S- DI'CH
                                                                   05       15 3CM-3NTS3N
                                                                          :!SH L&K"
                                                                          1^7 <">.2 '••! S Cc US  70
                                                                   11EP&LES               2111204
                                                                   4                   0000  CEET   DE°TH
006 30
\02f03
r._T-;74L
MG/L
0.232
0.0=2
0.45^
0.056
0.064
0.416
0.352
0.1 76
0.336
0.284
0.590
0.560
0.575
0. 200
006? 5
" T K J£L
N
MG/L
1.600

1.2CO
1.300
1.100
1. 500
1 .SCO
2.700
3.200
2.600
2. 500
3.SOO
2.6CO
2.000
006 1C
MH3-M
TOT&L
MG/L
C.300
0.105
0.195
0.095
0.050
0.04C
0. 160
0.112
0. 104
0.172
0.220
0.260
0.185
0.080
00671
PHOS-0! S
0"THO
MG/L P
0. 310
0.060
0.050
0.045
0.030
0.228
0.082
0.200
0. 104
0. 144
0.097
0.250
0.145

00665
PHGS-TJT

MG/L P
0.800
0.240
0.200
0.195
0.210
0.540
0.440
1.050
1.500
1.300
0.970
1.650
1.150
0.600

-------
N:TL ^-j
-Pi- Li
74/06/22
74/07/20
74/08/17
74/09/21
74/10/ 19
74/11/24
74/12/24
75/01/18
75/02/23
75/03/03
75/03/22
75/04/05
75/04/19
13
10
11
15
15
11
11
09
Id
09
10
10
10
10
0"
00
30
20
30
1 .1
•+0
00
30
10
35
00
                       00630
                       MG/L
                                                           35 39 51.0 090  23
                                  006
                        ••'G/L
                                            OCilC
                                MG/L
                                                       00671
                                                     PH>-S-OI
                                                      •1G/L P
                                                        006o5
                                                      OHOS-TJT

                                                       1G/L P
1.P76
0. 340
0.600
H. 38C
o.oie
1 . 0 K
1. 184
0.176
0.660
0.308
0.546
o.sin
0.540
1 . 90'~>
1.9CO
1.500
3 . 1 CO
C.900
2.200
1.3CO
6.500
3.400
2.400
2.800
4.1M
2.700
C.2SC
C. 310
0.143
0.04C
0.02C
C.048
0.085
0.232
0.084
0. 168
0.235
0.2CO
0. 145
0.300
0.090
0.090
0.090
0. 105
0.416
0. 125
C.180
0.120
0.165
0.106
0.250
0.135
0.38J
0.290
0.440
0.660
0.320
l.uSO
0.480
O.tiSO
1.500
1.200
0.990
1.750
1.150
                                                                             15 ="i
                                                                    BAN.<  'J
                                                                                           211120^.
                                                                                         0000

-------
                      
-------
         APPENDIX E

PARAMETRIC RANKINGS OF LAKES
   SAMPLED BY NES IN 1974

     STATE OF ARKANSAS

-------
      uA'A To Be.  UStO I
COUtL   LAist ivAi«c.




ObOi




0 b U 2   BLAC-\i-I>H LAK




ObUJ   BLUE MOUNTAIN




ObO-»   bULL SKOALS  LAK.t




OoU3   LAKt LAThE-.INt




ODOb   LAKt CMICOT




050'




ObOb   LAKE




UsO-v   oPANU LAK.fc




0510   LAKE




Obll   MILLWOOD'LAKt




Oblel   NIMNUD LAKt




Obl3   NORFOLK LAKt




OS1*   LAKE OUACHITA




051S   TAbLE KOCK LAKt




Obl6   GHiEEH'S LAKt
10T-L K
0 . ^C.t
0
0
0
0
0
o
o
0
0
0
0
0
0
0
0
.424
.ObB
.015
.02*
.1(32
.01*
.Ob,
.101
.024
.040
.03S
.015
.015
.022
.012
.*t'Jl AN
I N 0 * o N
0.3JU
1.
0.
0.
0.
0.
U.
0.
0.
0.
0.
0.
0.
0.
0.
0.
on.
160
3oO
180
4 = U
130
120
090
130
120
160
320
135
350
140
500- WHAN
MtAN bllC C h L 0 "< A
4-*o
48<»
343
451
486
419
454
"79
426
46b
469
356
389
410
370
.125
.000
.^
.667
.000
.050
.667
.667
.111
.776
.000
.321
. 144
.776
.875
19
a
3
14
13
12
13
62
10
14
15
3
4
9
3
.Y7b
.903
.,9b
.04^
.722
.300
.369
.86/
.889
.9b7
.633
.441
.344
.103
.762
13-
M I f. 0 U
14.900
12.
14.
15.
11.
14.
15.
14.
0.
14.
9.
8.
15.
15.
15.
15.
000
bOO
000
600
1300
000
ftOO
400
400
600
600
000
000
000
000
Dlab
0
u
0
0
0
0
0
0
0
0
U
0
0
0
0
0
MtUI AN
UK r.io
.OOi
.0^0
.010
.004
.006
.089
.004
.020
.021
.006
.006
.006
.005
.006
.007
.004

-------
PLKCtNT  OF LAKES «aIT<-l
VALUcS  (NUM^Fn
                                                    LAKt5  bITn nlGnt*
LAKE.
COL/C.
U301
0 = 0.
050J
050"
050 =
0506
0507
ObOb
0509
0510
0511
0512
0513
051"
0515
0516
LAKt NiAMt
EitAvEK LAKt
BLACKFISri LAKE
dLUE MOUNTAIN LAKt
cHJLL bnOALb LAKE
LAKt CATHERINE
LAKE CulCOT
OEGRAY RESERVOIR
LAKE ERLING
GRAND LAKE
LAKE HAMILTON
MILLWOOD LAKE
NIMROL) LAKE
NORFOLK LAKE
LAKE OUACHITA
TABLE ROCK LAKE
GREER'S LAKE
'< E 0 1 A N
10TAL P
63
0
.0
->d
-7
7
73
27
13
53
33
40
on
90
63
100
( 9 )
( 0)
( 3)
( 13)
( 7)
( 1)
t 11)
( 4)
( 2)
( 8)
( 5)
( 6)
( 12)
( 13)
( 9)
( IS)
MtJI AM
dl
0
47
13
40
7
77
90
100
77
90
53
33
60
20
67
( "» )
( 0)
( 7)
( *>
( 6)
( 1)
( 11)
( 13)
( 15)
( 11)
( 13)
< b)
( 5)
( 9)
< 3)
( 10)
3UO-
MtAN at
b7 (
U (
13 (
100 (
^7 (
7 (
t>0 (
40 (
20 (
53 (
33 (
27 (
93 (
60 (
73 (
87 (
Mt AN
:C CMLUKA
10)
J)
2)
la)
n
1)
9)
6)
3)
6)
5)
*>
14)
12)
11)
13)
B7
/
67
80
2?
33
47
40
0
53
20
13
100
73
60
93
( 13)
( 1)
( 10)
( 12)
( 4)
( 5)
( 7)
( 6)
( 0)
( b)
( 3)
( 2)
( 15)
( 11)
( 9)
( 14)
MlN OU
*0 (
73 (
57 (
17 (
bO (
47 (
17 (
57 (
100 (
67 (
U7 (
93 (
17 (
17 (
17 (
17 (
6)
11)
B)
0)
12)
7)
0)
8)
15)
10)
13)
14)
0)
0)
0)
U)
DISS 0-
5)
7)
12)
8)
6)
13)

-------