U.S. ENVIRONMENTAL PROTECTION AGENCY
               NATIONAL EUTROPHICATION SURVEY
                        WORKING PAPER SERIES
                                              REPORT
                                               ON
                                            CHICOT LAKE
                                           CHICOT COUNTY
                                             ARKANSAS
                                           EPA REGION VI
                                        WORKING PAPER No, 484
     CORVALLIS ENVIRONMENTAL RESEARCH LABORATORY - CORVALLIS, OREGON
                                 and
    ENVIRONMENTAL MONITORING & SUPPORT LABORATORY - LAS VEGAS, NEVADA
•&G.P.O. 699-440

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                             REPORT
                               ON
                           CHICOTLAKE
                          CHICOT COUNTY
                            ARKANSAS
                          EPA REGION VI
                      WORKING PAPER No, 484
   WITH THE COOPERATION OF THE
ARKANSAS DEPARTMENT OF POLLUTION
       CONTROL AND ECOLOGY
             AND THE
     AKRANSAS NATIONAL GUARD
          JANUARY, 1977

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            REPORT ON CHICOT LAKE

           CHICOT COUNTY, ARKANSAS

                EPA REGION VI


                     by

       National  Eutrophication Survey

      Hater 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.  484
     OFFICE OF RESEARCH AND DEVELOPMENT
    U.S.  ENVIRONMENTAL PROTECTION AGENCY

                January 1977

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                               CONTENTS

                                                       Page
Foreword                                                i i
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                                16
 VI. Appendices                                         17

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                                  ii


                               FOREWORD
     The National Eutrophicatlon Survey was Initiated in  1972  in
response to an Administration commitment to investigate the  nation-
wide threat of accelerated eutrophication 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 eutrophication 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 eutrophication 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
[§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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                                 111
    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, multivarlate 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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          NATIONAL EUTROPHICATION SURVEY
                    STUDY LAKES
                 STATE OF ARKANSAS
LAKE NAME
Beaver
Blackfish
Blue Mountain
Bull Shoals

Catherine
Chi cot
DeGray
Erling
Grand
Greer's Ferry
Hami1 ton
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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     ^
—33'25
— 33'20'
— 33'15'
            i Macon
             Lake
               lake
              Village
CHICOT  LAKE

Tributary Sampling Site
Lake Sampling Site
                           . Fairviewi
    91*20
                                 91 15
               91 10

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                    REPORT ON  LAKE  CHICOT,  ARKANSAS
                            STORET  NO.  0506
I.    CONCLUSIONS
     A.    Trophic Condition:*
               Based upon  field observations  and  Survey  data,  Lake
          Chicot is considered eutrophic,  i.e., nutrient rich  and
          highly productive.   Whether such  nutrient  enrichment is
          to be considered beneficial  or deleterious is  determined
          by its actual  or potential  impact upon  designated  benefi-
          cial  water uses  of each lake.
               Chlorophyll 
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     vicinity of sampling Station 01.   In 1971, Ketelle and Uttormark
     reported siltation and insecticides contributed from agricultural
     runoff to be major lake problems.
B.   Rate-Limiting Nutrient:
          Algal assay results indicate that Lake Chicot was limited by
     available nitrogen during the spring and fall  sampling seasons.
     Spikes with nitrogen or phosphorus and nitrogen simultaneously
     resulted in increased assay yields.  The addition of phosphorus
     alone did not produce a growth response.  The  lake ratios  of
     available inorganic nitrogen to orthophosphorus (N/P) also in-
     dicate primary limitation by nitrogen during spring and fall,  but
     phsophorus limitation during the summer.
C.   Nutrient Controllability:
     1.   Point sources -
               There are no known point sources contributing to Lake
                                                  2
          Chicot.  The present loading of 6.64 g/m  /yr is nearly eight
          times that proposed by Vollenweider (1975) as eutrophic for
          a lake of such volume and retention time.  However, Vollen-
          weider's model may not apply to highly turbid lakes,  like
          Lake Chicot, where light penetration in the surface waters
          is severely restricted by the high concentrations of suspended
          solids.
               Although there are no known point sources impacting  Lake
          Chicot, nutrient levels and background nutrient loadings  for

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     the tributaries flowing into the lake are unusually high  (see
     Section IV-D).   Determination of the extent of agricultural
     runoff and of unknown sources contributing to the lake  is
     needed to determine the cause of such high nutrient inputs  to
     the lake.
2.    Nonpoint sources -
          Nonpoint sources contributed all of the nutrient loads
     reaching Lake Chi cot.  Connerly Bayou contributed 90.7% of
     the total phosphorus load and minor tributaries were estimated
     to have contributed 9.0% of the total.
          In general, few lakes are nitrogen limited as a result
     of low nitrogen.  Rather, excessive phosphorus levels shift
     limitations to nitrogen or other factors.  Regardless of  the
     primary nutrient limitation suggested by either algal assay  or
     nutrient ratios, the most feasible approach to nutrient control,
     if desirable, is through available phosphorus control tech-
     nology and subsequent establishment of phosphorus limitation
     within the water body.

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II.   LAKE AND DRAINAGE BASIN CHARACTERISTICS

          Lake and drainage basin characteristics  are itemized

     below.   Lake morphometry was provided by the  Arkansas  Depart-

     ment of Pollution Control and Ecology.   Tributary flow data

     were provided 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 Eutrophication Survey (NES)  Working  Paper No.  175.

     A table of metric/English conversions is included as Appendix A.

     A.   Lake Morphometry:

          1.   Surface area:  21.45 km^.
          2.   Mean depth:  2.7 meters.
          3.   Maximum depth:  7.6 meters.
          4.   Volume:  58.837 x 105 m3.
          5.   Mean hydraulic retention time:  49  days.

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

1.    Tributaries -

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

     C-l Connerly Bayou             932.4            12.21

     Minor tributaries and
     immediate drainage -            92.6             1.41

               Totals              1,025.0            13.62

2.    Outlet - A-l Ditch Bayou     1,046.4            13.82

Precipitation:

1.    Year of sampling:  161.3 cm.
2.    Mean annual:  160.3 cm.

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III.  LAKE WATER QUALITY SUMMARY



          Lake Chicot was sampled three times  during  the  open-water



     season of 1974 by means of a pontoon-equipped  Huey  helicopter.



     Each time, samples for physical  and chemical parameters  were



     collected from three stations on the lake and  from  a number of



     depths at each station (see map, page v).   During each visit,



     depth-integrated samples were collected from each station  for



     chlorophyll  ^analysis and phytoplankton  identification  and



     enumeration.  During the first and last visits,  18.9-liter



     depth-integrated samples were composed for algal assays.   Maxi-



     mum depths sampled were 4.6 meters at Station  01, 7.0 meters at



     Station 02,  and 8.8 meters 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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LAKt CHICOT
STO°ET CODE Ob'Ot
PA-A-.-ETES
                       N°
                                                  A.
                                  (   3/26/74 )
                                               •"A*.
                                                      PHYSICAL AND CHEMICAL CHAKACTEKISTICS

                                                                       (  b/ b/74  )
                                                                                    MAX
                                               (METEwS)
                                                                  KANbt
                                                                                    tf.ANGE
                                                                           MEDIAN   (METEKS)
      (  10/16/74  )
                   MAX
      S°o° =  3    DEPTH
                   RANGE
  HANGE     MEDIAN   (METERS)
TEMPERATURE
                 CENTI
0.-1.5 M OEPTn
MAX DEPTH00
DISSOLVED OXYGEN
O.-l.S M LiEKlH
MAX DEPTH00
CONDUCTI V I T f 
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B.   Biological Characteristics:



     1.    Phytoplankton -
Sampling Dominant
Date Genera
03/26/74 1 .
2.
3.
4.
5.
06/05/74 1.
2.
3.
4.
5.
10/16/74 1.
2.
3.
4.
5.
Stephanodiscus
Melosira
Cryptomonas
Actinastrum
Dactylococcopsis
Other genera
Total
Merismopedia
Melosira
Cryptomonas
Oscillatoria
Cyclotella
Other genera
Total
Cyanophytan Filament
Melosira
Flagellates
Stephanodiscus
Synedra
Other genera
Algal
Units
per ml
1,904
368
246
154
92
92
2,856
566
536
447
209
179
1,072
3,009
2,281
1,313
726
726
311
1,383
                                            Total
6,740

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          Chlorophyll a -
          Sampling
          Date

          03/26/74
          06/05/74
          10/16/74
          Station
          Number

            01
            02
            03

            01
            02
            03

            01
            02
            03
                        Chlorophyll
                            30.5
                             3.0
                             1.6

                            30.5
                             4.0
                             1.1

                            29.2
                            16.4
                             7.2
C.    Limiting Nutrient Study:

     1.    Autoclaved, filtered, and nutrient spiked

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

          Control
          0.05 P
          0.05 P + 1.00 N
          1.00 N

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

  0.095
  0.145
  0.145
  0.095
          Spike (mg/1)
Ortho
Cone.
P
(mg/1)
          Control           0.065
          0.05 P           0.115
          0.05 P + 1.00 N  0.115
          1.00 N           0.065
         Inorganic N
         Cone,  (mg/1)

           0.440
           0.440
           1.440
           1.440
Inorganic N
Cone,  (mg/1)

  0.334
  0.334
  1.334
  1.334
               Maximum Yield
               (mg/1-dry wt.)

                    13.8
                    13.5
                    39.6
                    37.6
Maximum Yield
(mg/1-dry wt.)

     8.5
     8.5
    22.6
    16.2

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                                   10
2.   Discussion -
          The control yield of the assay alga,  Selenastrum capri-
     cornutum, indicates that Lake Chicot had extremely high poten-
     tial for primary productivity during the spring and fall  sam-
     pling periods.  The lake was nitrogen limited at those times
     as indicated by the increased yields of the test alga in  re-
     sponse to the addition of inorganic nitrogen.  Spikes with
     phosphorus and nitrogen simultaneously resulted in a maximum
     yield.  Spikes with phosphorus alone did not produce a re-
     sponse beyond the control yield.
          The mean N/P ratios in the lake data  were 6/1 and 4/1 in
     the spring and fall, respectively, indicating primary limita-
     tion by nitrogen.  The lake N/P ratio during summer sampling
     was 17/1, suggesting phosphorus limitation at that time (a
     mean N/P ratio of 14/1 or greater generally reflects 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 January, March,  and April

     when two samples were collected.   Sampling was begun in  June

     1974, and was completed  in June  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

     tributaries are those measured minus known point  source  loads,

     if any.

          Nutrient loadings for unsampled "minor tributaries  and imme-

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

     annual  nutrient loads, in  kg/km2/yr, in Connerly  Creek at Station

     C-l, and multiplying the means by the II  area  in  km2.

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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 Connerly Bayou            129,285         90.7

          b.   Minor tributaries and immediate
               drainage  (nonpoint load) -     12,870          9.0

          c.   Known municipal STP's - None

          d.   Septic tanks* -                     5         <0.1

          e.   Known industrial - None

          f.   Direct precipitation** -          375          0.3

                              Totals         142,535        100.0

     2.   Output - A-l Ditch Bayou           115,735

     3.   Net annual P accumulation -         26,800
      *Estimate based on 20 lakeside residences and 1  state park.
     **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 Connerly Bayou            773,015         88.5

          b.   Minor tributaries and immediate
               drainage (nonpoint load) -     76,765          8.8

          c.   Known municipal  STP's - None

          d.   Septic tanks* -                    250         <0.1

          e.   Known industrial - None

          f.   Direct precipitation** -       23,155          2.7

                              Totals         873,185        100.0

     2.    Output - A-l Ditch Bayou           700,900

     3.    Net annual N accumulation -        172,285
      *Estimate based on 20 lakeside residences and 1  state park.
     **Estimated (see NES Working Paper No. 175).

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                                  14
D.   Mean Annual Nonpoint Nutrient Export by Subdrainage Area:

     Tributary                          kg P/km2/yr    kg N/km2/yr

     Connerly Bayou                        139            829


E.   Mean Nutrient Concentration in Ungaged Streams:

                                        Mean Total  P   Mean Total  N
     Tributary                             (mg/1)         (mg/1)

     B-l Unnamed Creek                     0.513          2.036
     D-l Ferry Bayou                       0.408          1.768

          Nutrient concentrations for the above two tributaries are

     in line with those found in the gaged tributary (C-l Connerly

     Bayou) flowing into Lake Chi cot.

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                                 15
F.    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 Lake Chicot                            6.64
     Vollenweider's eutrophic loading                             0.88
     Vollenweider's oligotrophic loading                          0.44

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                                   16
V.   LITERATURE REVIEWED

     Ketelle, Martha J. and Paul D. Uttormark, 1971.  Problem Lakes
       in the United States.  U.S. Environmental Protection Agency
       Project #1610 EHR.  University of Wisconsin, Madison, Wise.

     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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                                17
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



Cubic.meters x 8.107 x 10"4 = 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 FLOW INFORMATION FOR ARKANSAS
                                                                                          02/03/77
LAKE CODE 0506
                   CHlCOT LAKE
     TOTAL DRAINAGE AREA OF LAKE(SO KM)   1046.4


                                  FEB
          SUB-DRAINAGE
TRIBUTARY  AREAISQ KM)
0506A1
0506C1
0506ZZ
            1046.4
             932.4
             114.0
  JAN

19.03
16.93
 1.94
31.35
27.86
 3.20
  MAR

28.49
25.32
 2.92
  APR

26.22
23.33
 2.68
                        TOTAL DRAINAGE AREA OF LAKE =
                        SUM UF SUB-DRAINAGE AREAS   =
  MAY

25.06
22.29
 2.56
                                                         1046.4
                                                         1046.4
                                NORMALIZED F.LOWS(CMS)
                                  JuN     j'JL     AU6
8.24
7.33
0.84
3.91
3.48
0.40
2.12
I.b8
0.22
 SEP

3.20
1.90
0.33
 OCT

3.74
3.34
0.33
 NUV

5.38
4.79
0.55
  DEC

10.42
 9.26
 1.06
13.82
12.21
 1.41
     MEAN MONTHLY FLOWS AND DAILY FLOWS(CMS)
TRIBUTARY
0506A1
            MONTH
                    YEAR
    MEAN FLOW  DAY
0506C1
6
7
8
9
10
11
12
1
2
3
4
5
6
6
7
8
9
10
11
12
1
2
3
4
5
6
74
74
74
74
74
74
74
75
75
75
75
75
75
74
74
74
74
74
74
74
75
75
75
75
75
75
                   FLOW  DAY
                                                                   SUMMARY
                                                      TOTAL FLOW IN
                                                      TOTAL FLOW OUT
                                                                  164.78
                                                                  167.15
                             FLOW  DAY
                                       FLOW
52.669
7.362
6.711
44.174
6.711
13.819
14.640
36.246
60.315
56.067
31.715
45.873
45.873
45.873
6.570
5.069
40.776
4.955
12.629
8.608
28.600
58.050
50.404
23.050
39.644
39.644
22
29
15
18
17
22

7
19
14
14

5
22
29
15
18
17
22

7
19
14
14

5
35.679
20.671
7.362
29.733
5.692
11.893

37.661 16
47.006
67.677 19
45.024 22

45.307
56.634
7.079
3.115
32.564
2.973
17.556

33.414 16
41.909
210.394 19
40.210 22

39.644







49.554

89.764
19.114









44.174

79.854
17.018



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                                   TRIBUTARY FLO* INFORMATION FOR ARKANSAS
                                                                       02/02/77
LAKE CODE 0506
ClICOT LAKE
     MEAN MONTHLY FLOWS AND OAILY FLOWS(CMS)

TRIBUTARY   MONTH   YEAR    MEAN FLOW  DAY

0506ZZ
6
7
8
9
10
11
12
1
2
3
4
5
6
74
74
74
74
74
74
74
75
75
75
75
75
75
                                FLOW  DAY
FLOW  JAY
FLOW
5.635
0.793
0.623
4.955
0.595
1.529
1.048
3.483
7.079
6.173
2.832
4.955
4.955
22
29
15
18
17
22

7
19
14
14

5
6.9CV9
0.850
0.368
3.964
0.368
2.152

4.106
5.125
25.712
4.899

4.955







16

19
22


                                                                    5.409

                                                                    9.769
                                                                    2.095

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        APPENDIX C



PHYSICAL AND CHEMICAL DATA

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STORET RETRIEVAL DATE 77/02/02
/TYPA/AM8NT/LAKE
                      00010
  DATE   TIME DEPTh  WATER
  FROM    OF          TEMP
   TO    DAY  FEET    CENT
74/03/26 12 05 0000
         12 05 0005
         12 05 0013
74/06/05 11 10 0000
         11 10 0005
         11 10 0015
74/10/16 12 10 0000
         12 10 0005
         12 10 0013
00300     00077
 DO      TRANSP
         SECCHI
MG/L     INCHES
13.3
13.2
12.5
26.1
26.2
25.3
19.6
19.4
19.2

10.0
9.4

7.4
0.2
7.4
6.2
5.0
                                                                  050601
                                                                 33 22 37.0 091 13 22.0 3
                                                                 05017   ARKANSAS
                                                                                          101192
                                 11EPALES            04001002
                                  0017 FEET  DEPTH  CLASS 00
7
P
I
S
32


28


18


00094
CNOUCTVY
FIELD
MICROMHO
184
185
187
290
294
310
210
193
208
00400
PH

su
8.30
8.20
7.90
8.20
8.10
7.35
7.79
7.66
7.44
00410
T ALK
CAC03
MG/L
107
111
119
121
123
125
122
125
125
00610
NH3-N
TOTAL
MG/L
0.030
0.020
0.050
0.080
0.060
0.260
0.040
0.020
0.050
00625
TOT KJEL
N
MG/L
0.800
0.600
0.700
0.700
0.600
0.800
1.200
0.700
0.600
00630
N02«kN03
N-TOTAL
MG/L
0.020
0.020
0.030
0.190
0.100
0.060
0.030
0.020K
0.020K
00671
PHOS-OIS
ORTHO
MG/L P
0.032
0.028
0.026
0.046
0.046
0.104
0.031
0.028
0.034
DATE
FROM
TO
74/03/26


74/06/05


74/10/16


00665 32217 00031
TIME DEPTH PHOS-TOT CHLRPHYL INCDT LT
OF A REMNING
DAY FEET MG/L P
12
12
12
11
11
11
12
12
12
05
05
05
10
10
10
10
10
10
0000
0005
0013
0000
0005
0015
0000
0005
0013
0.083
0.076
0.094
0.148
0.093
0.160
0.143
0.112
0.149
UG/L PERCENT
30.5


30.5


29.2


K VALUE KNOWN TO dE
LESS THAN INDICATED

-------
STDRET RETRIEVAL DATE 77/02/02
/TYPA/AMBNT/LAKt.

DATE
FROM
TO
74/03/26


74/06/04



74/10/16



TIME DEPTH
OF
DAY FEET
12 25 0000
12 25 0005
12 25 0015
10 45 0000
10 45 0005
10 *5 0015
10 45 0023
11 50 0000
11 50 0005
11 50 0016
00010
WATER
TEMP
CENT
13.3
13.3
13.2
26.6
26.5
25.9
25.3
19.6
19.6
19.6
                                                                   050602
                                                                  33  20  05.0  091  16 <*0.0 3
                                                                  LAKE  CHIC^T
                                                                  05017    ARKANSAS
                                                                                           101791
                              11EPALES            04001002
                               0020 FEET  DEPTH  CLASS 00
00010
WATER
TEMP
CENT
00300
DO

MG/L
OC077
TRANSP
SECCHI
INCHES
00094
CNDUCTVY
FIELD
MICROMHO
00400
PH

SU
00410
T ALK
CAC03
MG/L
00610
NH3-N
TOTAL
MG/L
00625
TOT KJEL
N
MG/L
00630
N026.N03
N-TOTAL
MG/L
00671
PHOS-OIS
ORTHO
MG/L P
9.0
9.0

6.5
6.6
5.4
8.4
7.8
8.0
                                               16
174
175
174
288
293
315
237
196
197
199
7.75
7.75
7.75
7.08
7.60
7.22
7.00
7.88
7.87
7.83
87
88
85
81
91
80
71
94
92
93
0.070
0.080
0.090
0.110
0.080
0.110
0.120
0.070
0.070
0.060
0.500
0.500
0.600
0.700
0.400
0.500
0.700
0.800
0.500
0.500
0.700
0.720
0.730
1.450
1.940
1.950
1.850
0.210
0.190
0.196
0.127
0.114
0.122
0.096
0.097
0.100
0.098
0.078
0.076
0.076
DATE
FROM
TO
74/03/26


74/06/04



74/10/16



00665 32217 00031
TIME DEPTH PHOS-TOT CHLRPHYL INCDT LT
OF A REMNING
DAY FEET
12
12
12
10
10
10
10
11
11
11
11
25
25
25
45
45
45
45
50
50
50
50
0000
0005
0015
0000
0005
0015
0023
0000
0004
0005
0016
MG/L P UG/L PERCENT
0
0
0
0
0
0
0
0

0
0
.378 3.0
.334
.308
.201 4.0
.230
.195
.238
.162 16.4
1.0
.148
.130

-------
STORET RETRIEVAL DATE 77/02/02
                                                                  050603
                                                                 33 16 25.0 091 13  15.0 3
                                                                 LAKE CHICC*
                                                                 05017   ARKANSAS
                                                                                           101792
/TYPA/AM6NT/LAKE
11EPALES            04001002
 0027 FEET  DEPTH  CLASS 00

DATE
FROM
TO
74/03/26



74/06/05



74/10/16




TIME
OF
DAY
12 50
12 50
12 50
12 50
10 10
10 10
10 10
10 10
11 20
11 20
11 20
11 20

DEPTH

FEET
0000
0005
0015
0022
0000
0005
0015
0029
0000
0005
0015
0023
00010
WATER
TEMP
CENT
13.1
13.0
13.0
13.0
24.7
24.6
23.9
23.3
18.9
18.9
18.7
18.6
                                00300     00077
                                 00      TRANSP   CiN
                                         SECCHI   FIELD
                                MG/L     INCHES   M]
                                   9.0
                                   9.0
                                   9.0
                                               3
                                   5.0
                                   3.8
                                   3.2
                                   7.4        18
                                   7.8
                                   7.0
                                   7.2
94
TVY

MHO
145
144
145
144
281
264
183
166
189
187
189
187
00400
PH

SU
7.70
7.70
7.70
7.65
7.45
7.16
7.31
6.80
7.39
7.39
7.37
7.37
OOMO
T ALK
CAC03
MG/L
71
69
70
67
74
70
43
36
84
84
84
84
00610
NH3-N
TOTAL
MG/L
0.100
0.110
0.100
0.120
0.140
0.140
0.240
0.250
0.040
0.040
0.040
0.070
00625
TOT KJEL
N
MG/L
0.700
0.700
0.800
0.600
1.100
0.600
0.900
1.000
0.700
0.400
0.300
0.400
00b30
M02&N03
N-TOTAL
MG/L
0.730
0.740
0.740
0.730
1.780
1.910
1.860
1.930
0.360
0.380
0.380
0.380
00671
PHOS-UIS
OHTHO
MG/L P
0.142
0.151
0.146
0.151
0.088
0.091
0.099
0.083
0.092
0.089
0.088
0.067
DATE
FROM
TO
74/03/26



74/06/05



7<*/10/16




00665 32217 00031
TIME DEPTH PHOS-TOT CHLRPHYL INCDT LT
OF A REMNING
DAY FEET
12
12
12
12
10
10
10
10
11
11
11
11
11
50
50
50
50
1C
10
10
10
20
20
20
20
20
0000
0005
0015
0022
0000
0005
0015
0029
0000
0003
0005
0015
0023
MG/L P UG/L PERCENT
0
0
0
0
0
0
0
0
0

0
0
0
.395 1.6
.360
.358
.387
.181 1.1
.217
.321
.321
.153 7.2
1.0
.140
.152
.149

-------
  APPENDIX D
TRIBUTARY DATA

-------
NAIL ElJT"PH!C4MCN  SURV-Y
   TC

74/06/22
74/07/29
74/08/15
74/09/18
74/10/17
75/01/07
75/01/16
75/02/19
75/03/14
75/03/19
75/04/14
75/04/22
75/06/05
DAY

10 45
If 30
14 10
14 30
08 45
C9 10
11 00
13 50
15 20
11 15
09 35
09 30
16 20
                       00630
MG/L

 1. 180
 0.770
 0. 570
 0. 312
 0.336
 0.112
 0.144
 •1.264
 0.351
 0.345
 0.490
 0.525
 0.735
                                                           0506A1
                                                          33 15 15.0  091  13 25.0
                                                          DITCH =,A»00
                                                          05       7.5 5^0 L = 
-------
M*TL EUT5n?H!.C
r°4- I AS V-G1S
                     ? 75/11/23
                     SUSVFY
74/06/22
74/07/29
74/08/15
74/09/18
74/10/17
75/01/07
75/01/16
75/02/19
75/03/14
75/03/19
75/04/14
75/04/22
75/06/05
DAY

11
14
14
15
09
08
10
13
15
11
09
09
16
20
45
00
00
iV>
40
30
30
00
00
15
10
05
                                                           050631
                                                          33  17  22.0 091
                                                                                    10  55.0
                                                          J5       7.5  =.
                                                          T/CHi:0T  LAKr
                                                          2NDRY  o.O  ?.BDG
                                                          HEPALES
                                                                                    LEAC
10630
26V03
r'JT4L
"(G/L
0.040
0.168
3.300
0.168
0.08R
0.152
0.040
0.072
0.185
0.105
0.510
0.060
0.055
006?5
TJ.T KJEL
N
MG/L
1.100
1.600
1. 500
1.500
2.000
1.500
1.200
1.900
3.300
2.000
2.800
1.980
2.150
006 LO
KH3-N
TOTAL
MG/L
0.065
0.110
0.090
0.190
0.130
0.050
0.064
0.096
0.271
0.075
0.105
0.115
0.080
00671
PHOS-OI S
05THC
MG/L P
0.185
0.220
0.155
0.160
0.290
0.230
0.080
0.088
0. 136
0.083
0.162
0.090
0.065
00665
°HOS-TOT

MG/L P
0.450
0.610
0.500
0.310
0.440
0.540
0.250
0.420
0.910
0.560
0.860
0.385
0.440
                                                                                          SW LEVCE »n
                                                                                          2111204
                                                                                         OOCO FEPT  DEPTH

-------
       Kt-n;=vil CITE  75/11/28
NATL ELFS.r.PHtC 4TION  SURVEY
=04- LAS V^GiS
  cqfiM
   Tn

74/06/22
74/07/29
74/08/15
74/09/13
74/10/17
75/01/07
75/01/16
75/02/19
75/03/14
75/03/19
75/04/14
75/04/22
75/06/05
         12 I:

         13 30
         13 3"
         09 30
         08 00
         G9 30
         12 55
         14 30
         11 00
         08 35
         08 35
         15 30
                                                                    0506C1
                                                                   33 24  20.0  091  15 10.0
                                                                   CONNELLY  BAYCU
                                                                   05       15  L*K5 VILLAGE
                                                                   T/CHICOT  LAKF
                                                                          PD B'OG  AT COMM CF YELLOW BAYOU
                                                                           S              2111204
                                                                   4                    OCOO FF.F.T  OEPTH
00630
\G2&NH3
N-TOTAL
^3/L
0.270

0.056
0.216
0.104
0.140
0.120
0.232
0.296
0.220
0.330
0.315
0.370
00625
TOT KJEL
N
f'G/L
0.300
1.500
0.900
1.000
1. 500
1.500
2.100
2. ICO
2.200
2.300
2.200
3.450
1.800
00610
NH3-N
TCTAL
MG/L
0.095
0.210
0.015
0.065
0.090
0.050
0.112
0.088
0.085
0.071
0.100
0.185
0.040
00671
PHDS-DI S
TjRTHO '
*G/L P
0.080
0.095
0.065
0.160
0.057
0.170
0.160
0.120
0.162
0.069
0.115
0.040
0.040
00665
PHOS-TJT

MG/L P
0.220
0.265
0.155
0.28C
0.130
O.t40
0.690
0.770
0.970
0.660
0.820
0.120
0.210

-------
-PI-
   T ^

74/06/22
74/07/29
74/03/15
74/09/18
74/10/ 17
75/01/17
75/0 1/16
75/02/19
75/33/14
75/03/19
75/04/22
75/06/05
OiY  F

11 50

13 40
14 45
09 15
OH 20
OS 45
13 10
14 45
10 40
08 50
08 45
14 45
                    '=:  75/11/23
                     SURVEY
                                                          050631
                                                         33 22 5^.0 091  13  20.0
                                                         FERiY J-Y7J
                                                         05      7.5 LUNi
                                                                  BROi  HWY  144  2.5  MI  W HWY 257
                                                                  11E°4L?S              2111204
                                                                  *                    0000 FEET
                                                                                                  DEPTH
00630
'JC2<1NC13
N-T""4L
•4G/L
0.016
0.012
0.012
0.008
0.256
3.215
0.">72
O.OHO
3.120
Q.840
1.500
C.080
0.025
00625
T' T KJ8L
\!
•VG/L
). 700
o. aco
1.100
C.900
1.6CO
1 .900
1 . 000
1.300
2.700
2.600
2.600
1.4CO
1.150
006 1C
K.'H3-.Nl
TOTAL
V.G/L
0.025
0.012
0.025
0.010
0.065
0.055
0.032
0.080
0.060
0. 162
0.180
C:.240
0.030
00671
PhOS-DIS
•jOTHC
^G/L P
0.080
0.085
0.100
0.015
0. 170
0.330
0.055
0.112
0.170
0. 102
0.180
0.026
0.038
00665
PHCS-TJT

MG/L ?
0.180
0.185
0.230
O.J75
0.530
0.920
0.140
0.400
0.630
0.690
0.340
0.220
0.120

-------
         APPENDIX E

PARAMETRIC RANKINGS OF LAKES
   SAMPLED BY NES IN 1974

     STATE OF ARKANSAS

-------
UA*F DATA TO BE USED IN
LA
-------
PE-KEMT OF
LAKE
COOt  L
      BLUE MOUNTAIN LAKF
      BULL SriOALS LAKE
      LAKE CA
      LAKE CHICOT
      LAKE EftLING
      G*ANO LAKE
      LAKE HAMILTON
      MILLWOOD LAKF;
      NIMROO LAKE
      NORFOLK LAKE
      LAKE UUACHITA
      TABLE HOCK LAKE
      GREER'S LAKE
UMflFk QF LAKES WITH M!'
MEOI AN
TOTAL ^
63
0
20
90
47
7
73
27
n
53
33
40
80
90
63
100
( 9)
( 0)
( 3)
( 13)
( 7)
( 1)
( 11)
( 4)
( 2)
( 8)
( S)
( 6)
( 12)
( 1 J)
( 9)
( 15)
"EDI AM
I NOR 6 N
27 (
0 (
47 (
13 (
40 (
7 (
77 (
90 (
100 (
77 (
90 (
53 (
33 (
60 (
20 (
67 (
4 )
0)
7)
2)
6)
1 )
11 )
13)
15)
11)
13)
8)
5)
9)
3)
10)
•ihEn VALUES)
500-
67
0
13
100
47
7
60
40
20
53
33
27
93
80
73
87
SEC
( 10)
( 0)
( 2)
( 15)
( 7)
( 1)
( 9)
( 6)
( 3)
( 8)
( 5)
( 4)
( 14)
( 12)
( 11)
( 13)
MEAN
87
7
t>7
80
27
33
47
40
0
53
20
13
100
73
60
93
( 13)
( 1 )
( 10)
( 12)
( 4)
( 5)
( 7)
( 6)
( 0)
( 8)
( 3)
( 2)
( 15)
( 11)
( 9)
( 14)
15-
MIN DO
40
73
57
17
80
47
17
57
100
67
87
93
17
17
17
17
( 6)
( 11)
( H)
( 0)
( 12)
( 7)
( 0)
( 8)
( 15)
( 10)
( 13)
( 14)
( 0)
( 0)
( 0)
( 0)
MEDI AN
DISS (W-0 P
63 (
0 (
27 (
93 (
63 (
7 (
93 (
20 (
13 (
63 (
33 (
47 (
80 (
63 (
40 (
93 (
«)
0)
4)
ID
8)
1)
13)
3)
2)
8)
5)
7)
12)
8)
6)
13)

-------