U.S. ENVIRONMENTAL PROTECTION AGENCY
           NATIONAL EUTROPHICATION SURVEY
                    WORKING PAPER SERIES

                                           REPORT
                                            ON
                                        DALLAS LAKE
                                       LAGRANGE COUNTY
                                          INDIANA
                                        EPA REGION V
                                     WORKING PAPER No, 326
 CORVALLIS ENVIRONMENTAL RESEARCH LABORATORY - CORVALLIS, OREGON
                             and
ENVIRONMENTAL MONITORING & SUPPORT LABORATORY - LAS VEGAS, NEVADA
 699-440

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                                                         REPORT
                                                           ON
                                                      DALLAS LAKE
                                                    LAGRANGE COWTY
                                                        INDIANA
                                                     EPA REGION V
                                                 WORKING PAPER No,  326
o
o
                             WlTtt THE COOPERATION OF THE
                             INDIANA STATE BOARD OF HEALTH
                                      AND THE
                                INDIANA NATIONAL GUARD
                                         , 1976

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                                   CONTENTS
  Foreword                                                      ii
   »
  List of Indiana Study Lakes                                   iv
  Lake and Drainage Area Map                                     v

  Sections
  I.   Conclusions                                                1
 II.   Lake and Drainage Basin Characteristics                    3
III.   Lake Water Quality Sumnary                                 4
 IV.   Nutrient Loadings                                          8
  V.   Literature Reviewed                                       12
 VI.   Appendices                                                13

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                          FOREWORD
    The National Eutrophication Survey was initiated in 1972 in
response to an Administration commitment to investigate the nation-
wide threat of accelerated eutrophication to fresh water lakes and
reservoirs.

OBJECTIVES

    The Survey was designed to develop, in conjunction with state
environmental agencies, information on nutrient sources, concentrations,
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 non-point
source pollution abatement in lake watersheds.

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 water-
shed 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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                                 m
    Beyond the single lake analysis, broader based correlations
between nutrient concentrations (and loading) and trophic condi-
tion are being made to advance the rationale and data base for
refinement of nutrient water quality criteria for the Nation's
fresh water 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 EPA
and to augment plans implementation by the states.

ACKNOWLEDGMENT

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

    The staff of the Division of Water Pollution Control, Indiana
State Board of Health, provided invaluable lake documentation and
counsel during the Survey, reviewed the preliminary reports, and
provided critiques most useful in the preparation of this Working
Paper series.

    Major General Alfred F. Ahner, Adjutant General of Indiana,
and Project Officers Lt. Colonel Charles B. Roberts (Retired)
and Colonel Robert L. Sharp, who directed the volunteer efforts
of the Indiana National Guardsmen, are also gratefully acknowledged
for their assistance to the Survey.

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                                    IV
                      NATIONAL EUTROPHICATION SURVEY

                               STUDY LAKES

                             STATE OF INDIANA
LAKE NAME

Bass
Cataract
Crooked
Dallas
Geist
Hamilton
Hovey
James
James
Long
Marsh
Mississinewa
Maxinkuckee
Monroe
Morse
01 in
Oliver
Pigeon
Sylvan
Tippecanoe
Versailles
Wawassee
Webster
Westler
Whitewater
Winona
Witmer
COUNTY

Starke
Owen, Putnam
Steuben
LaGrange
Hamilton, Marion
Steuben
Posey
Kosciusko
Steuben
Steuben
Steuben
Grant, Miami, Wabash
Marshall
Brown, Monroe
Hami1 ton
LaGrange
LaGrange
Steuben
Noble
Kosciusko
Ripley
Kosciusko
Kosciusko
LaGrange
Union
Kosciusko
LaGrange

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                                              DALLAS & WESTLER  LAKES
                                                 Tributary Sampling Site
                                              X  Lake  Sampling Site
                                                 Sewage Treatment Facility
                                               o         1/2        1         11/2, Cm.
Map Location
                                                                                         4133—
85 26

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                               DALLAS LAKE
                             STORE! NO.  1845

I.  CONCLUSIONS
    A.  Trophic Condition:
            Survey data indicate that Dallas Lake is  eutrophic.  Of  the
        27 lakes sampled in Indiana in 1973, Dallas Lake  ranked  tenth  in
        overall trophic quality using a  combination of  six  parameters*.
        Ten of the lakes had less median total  phosphorus,  18  had  less
        median dissolved phosphorus, 11  had less  median inorganic  nitrogen,
        eight had less mean chlorophyll  a^ and  eight  had  greater mean  Secchi
        disc transparency.   Near-depletion or depletion of  dissolved oxygen
        occurred in the hypolimnion at both stations  in August and October.
            Survey limnologists noted light algal  blooms  and emergent  and
        submerged macrophytes.
    B.  Rate-Limiting Nutrient:
            The algal assay results show that Dallas  Lake was  phosphorus
        limited at the time the assay sample was  collected  (05/04/73).  The
        lake data indicate  phosphorus limitation  in August  as  well but nitro-
        gen limitation in October.
    C.  Nutrient Controllability:
            1.  Point sources—During the sampling year,  Dallas  Lake received
        a total phosphorus  loading just  over 1% times that  proposed  by Vollen-
        weider (Vollenweider and Dillon, 1974)  as a eutrophic  loading.  The
* See Appendix A.

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                             2
only known direct point source, Whetzel  High School,  is estimated
to have contributed 16.4% of the total  phosphorus load.
    An indirect point source, the Village of Wolcottville,  impacts
upstream Witmer Lake; and, considering the relatively small  phos-
phorus retention in the intervening water bodies (less than  33% in
Witmer Lake and less than 12%-in Westler Lake),  this  source  prob-
ably impacts Dallas Lake as well.
    While even complete removal of phosphorus at the  Whetzel  High
School treatment plant would still leave a loading of about  1.3
g/m2/yr (0.3 g/m2/yr in excess of the eutrophic  loading),  if a high
degree of phosphorus removal is provided at the  High  School  plant
and at the Wolcottville plant, it is likely to result in persistent
phosphorus limitation in Dallas Lake (see page 7) and a reduction  in
the incidence and severity of nuisance algal blooms.
    2.  Non-point sources—During the sampling year,  the non-point
phosphorus contributions of the\ Westler Lake outlet and the  immediate
drainage accounted for nearly 82% of the total phosphorus  load to
Dallas Lake.

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II.   LAKE AND DRAINAGE  BASIN  CHARACTERISTICS1"
     A.   Lake Morphemetry   :
         1.   Surface  area:  1.14  kilometers2.
         2.   Mean  depth:  10.8 meters.
         3.   Maximum  depth:   29.3 meters.
         4.   Volume:  12.303  x 106 m3.
         5.   Mean  hydraulic retention time:  148 days.
     B.   Tributary and  Outlet:
         (See Appendix  C for  flow data)
         1.   Tributaries -
                                              Drainage       Mean flow
             Name                              area (km2)*    (m3/sec)*
             Westler  Lake outlet                    97.9          0.92
             Minor tributaries &
              immediate drainage  -                   4.1          0.04
                        Totals                    102.0          0.96
         2.   Outlet -
             Dallas Lake outlet                    103.1**        0.96
     C.   Precipitation***:
         1.   Year  of  sampling:  111.6 centimeters.
         2.   Mean  annual:  91.3 centimeters.
 t  Table  of metric  conversions—Appendix B.
 tt Winters,  1975.
 *  For limits of  accuracy,  see Working Paper No. 175, "...Survey Methods,
   1973-1976".
 ** Includes  area of  lake.
 *** See  Working  Paper No.  175.

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                                       4
III.   LAKE WATER QUALITY SUMMARY
      Dallas Lake was sampled three times during the  open-water  season
  of  1973 by means of a pontoon-equipped Huey helicopter.   Each  time,
  samples for physical and chemical parameters were collected  from
  a number of depths at two stations on the lake (see map,  page  v).
  During each visit, a single depth-integrated (4.6 m to  surface)
       »
  sample was composited from the stations for phytoplankton identification
  and enumeration; and during the first visit, a single 18.9-liter
  depth-integrated sample was composited for algal assays.   Also each
  time,  a depth-integrated sample was collected from  each of the stations
  for chlorophyll  a^ analysis.  The maximum depths  sampled were 28.6
  meters  at station 1  and 21.3 meters at station 2.
      The sampling results are presented in full  in Appendix D and
  are summarized in the following table.

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A. SUMMARY OF PHYSICAL AND


1ST SAMPLING ( 5/ 4/73)

      2 SITES
CHEMICAL CHARACTERISTICS FOR DALLAS LAKE
 STORET CODE 1845

           2ND SAMPLING I 8/ 3/73)

                 2 SITES
3RD SAMPLING (10/12/73)

      2 SITES
PARAMETER
TEMP (C)
OISS OXY (MG/L)
CNOCTVY (MCROMO)
PH (STAND UNITS)
TOT ALK (MG/L)
TOT P (MG/L)
ORTHO P (MG/L)
N02»N03 (MG/L)
AMMONIA (MG/L)
KJEL N (MG/L)
INORG N (MG/L)
TOTAL N (MG/L)
CHLRPYL A (UG/L)
SECCHI (METERS)
RANGE
8.0
3.4
450.
7.4
195.
0.023
0.002
0.770
0.030
0.500
0.610
1.400
11.9
2.4
- 12.4
- 10.1
- 520.
8.5
- 199.
- 0.142
- 0.103
- 1.040
- 0.240
- 1.100
- 1.140
- 2.040
- 12.9
2.7
MEAN
10.3
7.9
487.
8.1
197.
0.048
0.020
0.882
0.054
0.700
0.935
1.582
12.4
2.6
MEDIAN
10.5
8.3
490.
8.1
197.
0.036
0.006
0.870
0.040
0.700
0.900
1.490
12.4
2.6
RANGE
7.9
0.0
324.
7.3
177.
0.014
0.005
0.060
0.060
0.800
0.120
0.860
8.3
1.5
- 25.8
8.5
- 450.
8.5
- 240.
- 0.282
- 0.181
- 1.000
- 1.440
- 2.000
- 1.570
- 2.130
- 13.2
1.8
MEAN
14.9
2.6
378.
7.9
194.
0.061
0.038
0.309
0.292
1.123
0.602
1.432
10.7
1.7
MEDIAN
11.5
0.1
356.
7.5
195.
0.023
0.012
0.170
0.170
0.900
0.710
1.460
10.7
1.7
RANGE
6.3
0.0
327.
7.3
177.
0.017
0.010
0.010
0.030
0.700
0.050
0.710
5.8
2.1
- 19.4
8.8
- 395.
8.5
- 220.
- 0.360
- 0.324
- 0.330
- 2.610
- 3.400
- 2.650
- 3.460
8.3
2.6
MEAN
12.1
2.6
364.
7.7
196.
0.097
0.089
o.osa
0.769
1.575
0.821
1.627
7.0
2.4
MEDIAN
9.8
0.0
357.
7.5
200.
0.028
0.020
0.035
0.435
1.150
0.530
1.235
7.0
2.4

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B.  Biological characteristics:

    1.   Phytoplankton -
        Sampling
        Date

        05/04/73
        08/03/73
        10/12/73
    2.   Chlorophyll  a,  -

        Sampling
        Date

        05/04/73
        08/03/73


        10/12/73
Dominant
Genera
1.
2.
3.
4.
5.
1.
2.
3.
4.
5.
1.
2.
3.
4.
5.
Fragilaria sjj.
Oscillatoria sp.
Asterionella sp.
Melosira sp.
Dinobryon sp.
Other genera
Total
Aphanizomenon sp.
Dictyosphaerium sp.
Oscillatori a sp.
Microcystis sp.
Lyngbya sp.
Other genera
Total
Aphanizomenon sp.
Flagellates
Cryptomonas sp.
Dinobryon sp.
Chlamydomonas sp.
Other genera
                           Algal  Units
                           per ml	
                                         Total
Station
Number

   1
   2

   1
   2

   1
   2
                             2,824

                               551
                               357
                               298
                               238
                               193
                               714

                             2,351

                               485
                               414
                               100
                               100
                               100
                               298

                             1,497
Chlorophyll  a
(yg/D

    11.9
    12.9
    13.
     8.
     5.8
     8.3

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                             7
Limiting Nutrient Study:
1.  Autoclaved, filtered, and nutrient spiked -
                     Ortho P          Inorganic  N    Maximum yield
    Spike (mg/1)     Cone, (mg/1)      Cone,  (mg/1)    (mg/l-dry wt.)
    Control              0.020             1.055            3.7
    0.050 P             0.070             1.055           15.5
    0.050 P + 1.0 N     0.070             2.055           14.9
    1.0 N               0.020             2.055            4.2
2.  Discussion -
        The control yield of the assay alga,  Selenastrum capri-
    cornutum, indicates that the potential  primary  productivity
    of Dallas Lake was moderately  high at the time  the  assay
    sample was collected (05/04/73).   The results also  indicate
    phosphorus limitation at that  time.   Note the four-fold
    increase in yield with the addition  of orthophosphorus alone
    and the lack of a significant  increase in yield with the
    addition of only nitrogen.
        The lake data indicate phosphorus limitation in August
    as well  (the mean inorganic nitrogen/orthophosphorus ratio
    was 16/1); however, the mean N/P  ratio in October was 9/1,
    and nitrogen limitation would  be  expected.

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                                      8
IV.   NUTRIENT LOADINGS
     (See Appendix E for data)
     For the determination of nutrient loadings,  the  Indiana National
 Guard collected monthly near-surface grab  samples  from each of the
 tributary sites indicated on the map (page v), except for the high
 runoff months of February and  March  when two  samples were collected.
 Sampling was begun in June,  1973, and was  completed  in May, 1974.
     »
     Through an interagency agreement, stream  flow  estimates for  the
 year of sampling and a "normalized"  or average year were provided by
 the Indiana District Office of the U.S. Geological Survey for the
 tributary sites nearest the lake.
     In this report, nutrient loads for sampled tributaries were
 determined by using a modification of a U.S.  Geological Survey computer
 program for calculating stream loadings*.
     Nutrient loads for unsampled "minor tributaries and immediate
 drainage" ("ZZ" of U.S.G.S.) were estimated using  the nutrient loads,
 in  kg/km2/year, at station C-l  of nearby Witmer  Lake** and multiplying
 by  the ZZ area in km2.
     The operator of the Whetzel  High School wastewater treatment plant
 did not participate in the Survey, and nutrient  loads were estimated
 at  0.567 kg P and 3.401 kg N/capita/year (note that  the per-capita
 estimate for phosphorus was reduced  by 50% to adjust for the Indiana
 phosphate-detergent ban instituted in January, 1972).
 * See Working Paper No.  175.
 ** See Working Paper No.  349.

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    A.  Waste Sources:
        1.  Known domestic -
        Name
        Whetzel  High
         School
Pop.
Served
  500
Treatment
Mean Flow
(m'/d)
  189.2*
        2.  Known industrial  - None
    B.  Annual Total Phosphorus Loading - Average Year:
        1.  Inputs -
            Source
                      kg P/
                      yr
            a.  Tributaries (non-point load) -
                West!er Lake outlet           1,400
            b.  Minor tributaries & immediate
                 drainage (non-point load) -     25
            c.  Known domestic STP's -
                Whetzel High School             285
            d.  Septic tanks** -                 10
            e.  Known industrial - None
            f.  Direct precipitation*** -        20
                        Total                  1,740
            Outputs -
            Dallas Lake outlet                1,630
            Net annual P accumulation - 110 kg.
Receiving
Water
Dallas Lake
                           % of
                           total
                                      80.5

                                       1.4

                                      16.4
                                       0.6

                                       1.1
                                     100.0
* Estimated at 0.3785 m3/capita/day.
** Estimate based on 60 lakeshore dwellings; see Working Paper No.  175.
*** See Working Paper No.  175.

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                                    10
    C.  Annual Total Nitrogen Loading - Average Year:
        1.  Inputs -
                                              kg N/          % of
            Source                            yr             total
            a.  Tributaries (non-point load) -
                Westler Lake outlet           66,630          92.8
            b.  Minor tributaries & immediate
                 drainage (non-point load) -   1,560           2.2
            c.  Known domestic STP's -
                Whetzel High School            1,700           2.4
            d.  Septic tanks* -                  640           0.9
            e.  Known industrial - None
            f.  Direct precipitation** -       1.230           1.7
                        Total                  71,760         100.0
        2.  Outputs -
            Dallas Lake outlet                48,390
        3.  Net annual N accumulation - 23,370 kg.
    D.  Mean Annual Non-point Nutrient Export by Subdrainage Area:
        Tributary                             kg P/km2/yr    kg N/km2/yr
        Westler Lake outlet                       14             681
* Estimate based on 60 lakeshore dwellings; see Working Paper No.  175.
** See Working Paper No. 175.

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                                n
E.   Yearly Loads:
        In the following table,  the existing  phosphorus  loadings
    are compared to those proposed  by Vollenweider (Vollenweider
    and Dillon, 1974).   Essentially, his  "dangerous"  loading  is
    one at which the receiving water would  become  eutrophic or
    remain eutrophic; his "permissible"  loading  is that  which
 »
    would result in the receiving water  remaining  oligotrophic
    or becoming oligotrophic if  morphometry permitted.   A meso-
    trophic loading would be considered  one between "dangerous"
    and "permissible".
        Note that  Vollenweider's model may  not be  applicable  to
    water bodies with short hydraulic retention  times.
                              Total  Phosphorus       Total Nitrogen
    	Total    Accumulated     Total   Accumulated
    grams/mVyr             1.53      0.10        62.9       20.5
    Vollenweider phosphorus  loadings
     (g/m2/yr)  based on  mean depth  and  mean
     hydraulic  retention time of Dallas Lake:
        "Dangerous"   (eutrophic  loading)              0.98
        "Permissible"  (oligotrophic  loading)         0.49

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                                    12

V.   LITERATURE REVIEWED

    Vollenweider, R. A., and P. J. Dillon, 1974.   The application of
        the phosphorus loading concept to eutrophication  research.
        Natl.  Res. Council of Canada Publ. No.  13690, Canada  Centre
        for Inland Waters, Burlington, Ontario.

    Winters, John, 1975.  Personal communication  (lake morphometry).
        IN Div.  Water Poll. Contr., Indianapolis.

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VI.  APPENDICES
                                   APPENDIX  A
                                  LAKE RANKINGS

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LAKE DATA TO BE USED IN RANKINGS
LAKE
CODE
1805
1811
1817
1837
183(1
1829
1836
1837
1839
1840
1841
18*. 2
18*3
184/,
1845
18<>6
1847
1848
1849
1850
1851
1853
1853
1854
1855
1856
1857
LAKE NAME
CATARACT LAKE
GEIST RESERVOIR
JAMES LAKE
M1SSISSINEWA RESERVOIR
MONriOE RE5EKVOIR
MORSE RESERVOIR
WAWASEE LAKE
WEBSTER LAKE
WHITEWATER LAKE
MINONA LAKE
WESTLER LAKE
HITHER LAKE
LAKE MAXINKUCKEE
TIPPECANOE LAKE
DALLAS LAKE
OLIN LAKE
OLIVER LAKE
SYLVAN LAKE
HOVEY LAKE
VERSAILLES LAKE
BASS LAKE
CROOKED LAKE
LAKE JAMES
LONG LAKE
PIGEON LAKE
MARSH LAKE
HAMILTON LAKE
MEDIAN
TOTAL P
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
.058
.074
.024
.107
.025
.084
.012
.025
.084
.035
.035
.035
.020
.019
.029
.012
.009
.170
.062
.139
.040
.019
.016
.204
.058
.093
.033
MEDIAN
INORG N
1.660
1.080
1.030
2.400
0.325
3.325
0.210
0.790
1.62C
1.250
0.860
0.900
0.220
0.195
0.830
1.460
0.920
0.130
1.050
1.090
0.250
0.120
0.190
1.920
1.945
0.270
0.720
500-
MEAN SEC
466.
472.
434.
473.
438.
473.
364.
431.
470.
444.
427.
440.
400.
391.
413.
403.
392.
469.
489.
482.
471.
410.
352.
442.
442.
451.
413.
667
500^
000
444
b23
222
500
000 '
167
667
125
333
400
500
333
333
000
833
333
000
375
111
444
667
067
333
167
MEAN
CHLORA
10
45
11
15
6
56
5
11
33
11
10
11
5
6
10
4
3
47
84
25
29
5
4
16
11
34
17
.744
.950
.533
.778
.947
.167
.000
.500
.083
.211
.712
.917
.483
.050
.067
.867
.767
.480
.267
.078
.367
.578
.856
.100
.900
.467
.450
15-
MIN DO
15.000
11.600
15.000
15.000
15.000
15.000
14.600
15.000
15.000
15.000
15.000
15.000
15.000
15.000
15.000
14.900
14.800
14.800
7.600
14.500
7.000
15.000
15.000
15.000
15.000
15.000
15.000
DISS
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
MEDIAN
ORThO P
.013
.009
.008
.029
.007
.009
.003
.005
.012
.011
.013
.011
.003
.005
.014
.003
.004
.017
.024
.019
.012
.005
.005
.150
.015
.055
.018

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PERCENT OF LAKES WITH HIGHER VALUES (NUMBER OF LAKES WITH HIGHE* VALUES)
LAKE
CODE
1805
1611
1817
1827
1828
1829
1836
1837
1B39
18<>0
1841
1842
1843
1844
18<>5
1846
1847
1848
1849
18SO
1851
1852
1853
1854
1855
1856
1857
LAKE NAME
CATARACT LAKE
GEIST RESERVOIR
JAMES LAKE
MISSISSINEWA RESERVOIR
MONKOE RESERVOIR
MORSE RESERVOIR
MAMASEE LAKE
WEBSTER LAKE
WHITEWATER LAKE
WINONA LAKE
WESTLER LAKE
WITHER LAKE
LAKE MAXINKUCKEE
TIPPECANOE LAKE
DALLAS LAKE
OLIN LAKE
OLIVER LAKE
SYLVAN LAKE
HOVEY LAKE
VERSAILLES LAKE
BASS LAKE
CROOKED LAKE
LAKE JAMES
LONC LAKE
PIGEON LAKE
MAHSH LAKE
HAMILTON LAKE
MEDIAN
TOTAL P
37 (
27 1
73 (
12 (
67 (
23 (
94 (
67 (
19 (
50 (
50 I
50 (
77 (
85 (
62 I
94 I
100 (
4 (
31 (
8 (
42 I
81 (
88 I
0 (
37 t
15 (
58 (
9)
7)
19)
3)
171
6)
24)
17)
5)
12)
12)
12)
20)
22)
16)
24)
26)
1)
8)
2)
11)
21)
23)
0)
9)
4)
15)
MEDIAN
INOAG N
15 (
35 (
42 <
4 I
69 (
0 <
85 (
62 I
19 (
27 (
54 (
50 I
81 (
88 (
58 (
23 (
46 (
96 (
38 (
31 <
77 (
100 (
92 <
12 (
8 (
73 (
65 <
41
9)
11)
1)
18)
0)
22)
16)
5)
7)
141
13)
21)
23)
IS)
6)
12)
25)
10)
8)
20)
26)
24)
3)
2)
19)
17)
SOO-
MEAN SEC
31
15
58
a
54
12
96
62
23
38
65
50
85
92
69
81
88
27
0
i>
19
77
100
44
44
35
73
( 8)
( 4)
( 15)
( 2)
( 14)
( 3)
( 25)
( 16)
( 6)
( 10)
( 17)
( 13)
( 22)
( 24)
( 18)
( 21)
( 23)
( 7)
( 0)
( 1)
( 5)
< 20)
( 26)
I 11)
( 11)
( . 9)
( 19)
MEAN
CHLORA
62
12
50
38
73
4
88
54
19
58
65
42
85
77
69
92
100
a
0
27
23
81
96
35
" 46
15
31
( 16)
( 3)
I 13)
( 10)
( 19)
( 1)
( 23)
1 14)
( 5)
( 15)
( 17)
( 11)
( 22)
( 20)
I 18)
( 24)
( 26)
( 2)
( 0)
( 7)
( 6)
( 21)
I 25)
( 9)
( 12)
( 4)
I 8)
Ib-
MIN DO
35
92
35
35
35
35
85
35
35
35
35
35
35
35
35
73
79
79
96
88
100
35
35
35
35
35
35
( 0)
( 24)
( 0)
( 0)
( 0)
( 0)
( 22)
( 0)
( 0)
( 0)
( 0)
( 0)
( 0)
( 0)
( 0)
( 19)
( 20)
( 20)
( 25)
( 23)
( 26)
( 0)
I 0)
( 0)
( 0)
( 0)
( 0)
MEDIAN
DISS ORTHO P
37
62
65
8
69
58
98
81
42
52
37
52
98
85
31
92
88
23
12
15
46
75
75
0
27
4
19
( 9)
( 16)
I 17)
( 2)
( 18)
( 15)
( 25)
( 21)
I 11)
( 13)
< 9)
( 13)
( 25)
( 22)
( 8)
( 24)
( 23)
( 6)
( 3)
( 4)
( 12)
( 19)
( 19)
( 0)
( 7)
( 1)
( 5)
INDEX
NU
217
243
323
105
367
132
So6
361
157
260
306
279
461
462
324
455
501
237
177
173
307
449
486
126
!•>?
177
281

-------
LAKES RANKED BY INDEX NOS.
RANK  LAKE CODE  LAKE NAME               INDEX NO

   1  1836       HAWASEE LAKE               546
   2  18*7       OLIVER LAKE                501
   3  1853       LAKE JAMES                 486
   4  1844       T1PPECANOE LAKE            462
   5  1843       LAKE MAXINKUCKEE           461
   6  1846       OLIN LAKE                  455
   T  1852       CROOKED LAKE               449
   8  1828       MONROE RESERVOIR           367
   9  1837       HE8STER LAKE               361
  10  1845       DALLAS LAKE                324
  11  1817       JAMES LAKE                 323
  12  1851       BASS LAKE                  307
  13  1841       MESTLER LAKE               306
  14  1857       HAMILTON LAKE              281
  15  1842       WITHER LAKE                279
  16  1840       WINONA LAKE                260
  17  1811       GEIST RESERVOIR            243
  18  1848       SYLVAN LAKE                237
  19  1805       CATARACT LAKE              217
  20  1855       PIGEON LAKE                197
  21  18S6       HARSH LAKE                 177
  22  1849       HOVEY LAKE                 177
  23  1850       VERSAILLES LAKE            173
  24  1839       tfHITENATER LAKE            157
  25  1829       MORSE RESERVOIR            132
  26  1854       LONG LAKE                  126
  27  1827       MISSISSINEMA RESERVOIR     105

-------
    APPENDIX B
CONVERSION FACTORS

-------
                CONVERSION FACTORS

Hectares x 2.471 = acres
Kilometers x 0.6214 = miles
Meters x 3.281 = feet
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

-------
    APPENDIX C
TRIBUTARY FLOW DATA

-------
                                   TRIBUTARY FLOW INFORMATION FOR INDIANA
                                                                                          03/29/76
LAKE CODE
                   DALLAS LAKE
          SUB-DRAINAGE
TRIBUTARY  AREA(SO KM)
18<>5A1
1845B1
1845ZZ
103.1
 97.9
i OF LAKE (SO KM) 103.1
JAN
1.27
1.21
0.045

TOTAL
SUM OF
FEB
1.49
1.41
0.059

MAR APR
2.09 1.96
1.99 1.87
0.088 0.079


DRAINAGE AREA OF LAKE =
SUB-DRAINAGE AREAS =
MAY
1.27
1.21
0.051

103.1
102.0
NORMALIZED FLOWS (CMS)
JUN JUL AUG
0.96 0.59
0.91 0.56
0.040 0.023
SUMMARY

0.22
0.21
0.006

TOTAL FLOW
TOTAL FLOW
SEP
0.20
0.19
0.007

IN =
OUT =
OCT NOV
0.22 0.51
0.21 0.48
0.007 0.020

11.58
11.70
DEC MEAN
0.92 0.97
0.87 0.92
0.040 0.039


     MEAN MONTHLY FLOWS AND DAILY FLOWS(CMS)
TRIBUTARY   MONTH   YEAR

1845A1
1845B1
1845ZZ
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
73
73
73
73
73
73
73
74
74
74
74
74
73
73
73
73
73
73
73
74
74
74
74
74
73
73
73
73
73
73
73
Tt
74
74
74
74
                            MEAN FLOW  DAY
1.614
1.104
0.793
O.S66
0.510
0.510
0.963
1.614
2.010
2.435
1.756
1.586
1.529
1.048
0.765
0.538
0.481
0.481
0.906
1.529
1.897
2.322
1.671
1.501
0.065
0.044
0.032
0.023
0.020
0.020
0.038
0.065
0.080
0.098
0.071
0.063
9
14
12
8
6
9
8
9
9
9
13
11
9
14
12
8
6
9
8
22
9
9
13
11
9
14
12
8
6
9
a
9
9
9
13
11
                                                   FLOW  DAY
                                                                     FLOW  DAY
                                                                                       FLOW
2.379
1.133
0.765
0.595
0.510
0.453
0.708
0.934
2.237
3.115
2.010
1.331
2.265
1.076
0.736
0.566
0.481
0.425
0.680
2.039
2.124
2.945
1.897
1.274
0.096
0.046
0.031
0.029
0.020
0.018
0.029
0.039
0.090
0.125
0.080
0.054








' 23
23










23
23









22
23
23


                                                                    2.379
                                                                    2.180
                                                                    2.265
                                                                    2.067
                                                                    0.086
                                                                    0.096
                                                                    0.087

-------
        APPENDIX D
PHYSICAL and CHEMICAL DATA

-------
STORE! RETRIEVAL DATE 76/03/30
                                                                  184501
                                                                 41 32 53.0 085 25 00.0 3
                                                                 DALLAS LAKE
                                                                 18087   INDIANA
                                                                 11EPALES             2111202
                                                                  0097 FEET  DEPTH  CLASS 00

DATE
FROM
TO
73/05/04








73/08/03











73/10/12









TIME DEPTH
OF
DAY FEET
09 45 0000
09 45 0006
09 45 0015
09 45 0025
09 45 0035
09 45 0050
09 45 0065
09 45 0080
09 45 0093
15 50 0000
15 50 0005
15 50 0010
15 50 0015
15 50 0020
15 50 0030
15 50 0040
15 50 0050
15 50 0060
15 50 0070
15 50 0080
15 50 0085
14 45 0000
14 45 0010
14 45 0018
14 45 0025
14 45 0035
14 45 0050
14 45 0065
14 45 0080
14 45 0094
00010
MATER
TEMP
CENT
12.4
12.4
12.3
12.3
9.0
8.6
8.2
8.1
8.0
25.4
25.0
24.4
22.7
15.6
11.5
10.0
8.5
8.1
8.1
8.0
7.9
19.0
18.6
18.1
13.9
9.3
7.2
6.6
6.3
6.3
00300
DO

MG/L

10.0
10.0
9.1
8.3
8.1
6.7
4.4
3.4

8.0

5.5
0.1
0.1


0.1


0.2
8.4
8.2
7.0
0.0
0.0
0.2
0.0
0.0
0.0
00300
DO

MG/L

10.0
10.0
9.1
8.3
8.1
6.7
4.4
3.4

8.0

5.5
0.1
0.1


0.1


0.2
8.4
8.2
7.0
0.0
0.0
0.2
0.0
0.0
0.0
00077 00094
TRANSP CNDUCTVY
SECCHI FIELD
INCHES MICROMHO
108 485
490
490
490
490
490
490
490
520
70 450
440
437
438
395
354
339
327
325
324
324
327
84 392
391
390
390
351
331
327
333
336
00400
PH

SU
8.40
8.40
8.20
8.00
7.80
7.70
7.60
7.50
7.40
8.40
8.50

8.00
7.50
7.50


7.40


7.40
8.50
8.40
8.30
7.60
7.50
7.40
7.40
7.30
7.30
00410
T ALK
CAC03
MG/L
198
198
197
196
197
196
196
196
199
182
180

187
199
200


195


201
178
179
179
202
200
198
200
212
216
00610
NH3-N
TOTAL
MG/L
0.040
0.040
0.040
0.040
0.030
0.030
0.030
0.080
0.240
0.110
0.060

0.080
0.240
0.220


0.170


0.640
0.050
0.030
0.040
0.410
0.460
0.330
0.820
1.810
2.610
00625
TOT KJEL
N
MG/L
0.700
0.700
0.700
0.700
0.700
0.700
0.700
1.000
1.100
1.400
0.800

0.900
1.100
0.800


0.900


1.700
0.700
0.700
0.700
1.000
1.100
1.000
1.700
3.300
3.100
00630
N02&N03
N-TOTAL
MG/L
0.790
0.790
0.790
0.770
0.990
1.010
0.870
1.040
0.900
0.060
0.060

0.170
0.470
0.580


1.000


0.220
0.020
0.020
0.020
0.040
0.030
0.330
0.040
0.030
0.040
00671
PHOS-DIS
ORTHO
MG/L P
0.003
0.005
0.006
0.006
0.013
0.017
0.023
0.061
0.103
0.014
0.008

0.007
0.014
0.007


0.062


0.132
0.022
0.012
0.020
0.018
0.015
0.019
0.147
0.293
0.324

-------
STORET RETRIEVAL DATE 76/03/30
DATE
FROM
TO
73/05/04








73/08/03






73/10/12








00665 32217
TIME DEPTH PHOS-TOT CHLRPHYL
OF A
DAY FEET
09
09
09
09
09
09
09
09
09
15
15
15
15
15
15
15
14
14
14
14
14
14
14
14
14
45
45
45
45
45
45
45
45
45
50
50
50
50
50
50
50
45
45
45
45
45
45
45
45
45
0000
0006
0015
0025
0035
0050
0065
0080
0093
0000
0005
0015
0020
0030
0060
0085
0000
0010
0018
0025
0035
0050
0065
0080
0094
MG/L P
0.026
0.035
0.035
0.036
0.040
0.044
0.054
0.087
0.142
0.018
0.022
0.023
0.022
0.020
0.074
0.180
0.022
0.017
0.023
0.024
0.022
0.024
0.146
0.291
0.360
UG/L
11.9








13.2






5.8








                                                                  184501
                                                                 41 32 53.0 085 25 00.0 3
                                                                 DALLAS LAKE
                                                                 18087   INDIANA
                                                                 11EPALES
                                                                  0097 FEET
DEPTH
  2111202
CLASS 00

-------
STORET RETRIEVAL DATE 76/03/30
                                                                  184502
                                                                 41 32 57.0 085 25 34.0 3
                                                                 DALLAS LAKE
                                                                 18087   INDIANA
DATE
FROM
TO
73/05/04







73/08/03











73/10/12






00010
TIME DEPTH WATER
OF TEMP
DAY FEET
10
10
10
10
10
10
10
10
16
16
16
16
16
16
16
16
16
16
16
16
15
15
15
15
15
15
15
35
35
35
35
35
35
35
35
50
50
50
50
50
50
50
50
50
50
50
50
35
35
35
35
35
35
35
0000
0006
0015
0022
0032
0040
0055
0070
0000
0005
0010
0015
0020
0025
0030
0040
0050
0060
0065
0068
0000
0014
0020
0030
0040
0055
0069
CENT
12.
12.
11.
11.
10.
8.
8.
8.
25.
24.
24.
23.
14.
12.
11.
10.
8.
8.
8.
8.
19.
19.
16.
10.
8.
7.
7.

2
1
9
8
5
9
6
5
8
5
4
6
5
6
6
1
7
6
5
5
4
0
2
4
6
4
1
00300
DO
MG/L

10.
10.
9.
9.
7.
6.
6.

8.

6.
0.


6.



0.
8.
8.
0.
0.
0.
0.
0.



1
1
9
2
4
1
2

5

0
1


0



0
8
2
8
0
0
0
0
11EPALES
2111202
0074 FEET DEPTH CLASS
00300
DO

MG/L

10.1
10.1
9.9
9.2
7.4
6.1
6.2

8.5

6.0
0.1


6.0



0.0
8.8
8.2
0.8
0.0
0.0
0.0
0.0
00077 00094
TRANSP CNDUCTVY
SECCHI FIELD
INCHES MICROMHO
96 490
480
460
450
490
490
490
495
60 450
437
439
440
395
366
358
342
343
340
343
340
102 395
394
391
362
346
343
346
00400
PH

SU
8.50
8.50
8.40
8.30
8.10
8.00
8.00
8.10
8.50
8.50

8.20
7.50


7.40



7.30
8.50
8.40
7.70
7.50
7.50
7.40
7.30
00410
T ALK
CAC03
MG/L
199
198
197
197
195
195
196
195
177
177

185
201


200



240
178
177
187
200
200
205
220
00610
NH3-N
TOTAL
MG/L
0.040
0.030
0.030
0.030
0.030
0.040
0.030
0.110
0.070
0.080

0.090
0°240


0.360



1.440
0.050
0.050
0.050
0.520
0.730
1.860
2.480
00
00625
TOT KJEL
N
MG/L
0.900
0.600
0.600
0.600
0.600
0.500
0.500
0.600
0.900
0.800

0.900
1.100


1.300



2.000
1.200
0.700
1.100
1.200
1.500
2.800
3.400

00630
N02&N03
N-TOTAL
MG/L
0.810
0.800
0.810
o.aio
0.880
1.000
0.980
0.950
0.060
0.060

0.170
0.540


0.500



0.130
0.020
0.010
0.020
0.050
0.050
0.060
0.060

00671
PHOS-D1S
ORTHO
MG/L P
0.003
0.002
0.004
0.008
0.006
0.017
0.005
0.052
0.005
0.006

0.008
0.012


0.040



o.iai
0.012
0.010
0.026
0.019
0.021
0.205
0.267

-------
STORE! RETRIEVAL DATE 76/03/30
DATE
FROM
TO
73/05/04







73/08/03





73/10/12






00665 32217
TIME DEPTH PHOS-TOT CHLRPHYL
OF A
DAY FEET
10
10
10
10
10
10
10
10
16
16
16
16
16
16
15
15
15
15
15
15
15
35
35
35
35
35
35
35
35
50
50
50
50
50
50
35
35
35
35
35
35
35
0000
0006
0015
0022
0032
0040
0055
0070
0000
0005
0015
0020
0040
0068
0000
0014
0020
0030
0040
0055
0069
MG/L P
0.023
0.030
0.028
0.026
0.027
0.037
0.061
0.082
0.014
0.016
0.023
0.027
0.070
0.282
0.036
0.021
0.035
0.028
0.029
0.207
0.270
UG/L
12.9







8.3





8.3






                                                                  184502
                                                                 41 32 57.0 085 25 34.0 3
                                                                 DALLAS LAKE
                                                                 18087   INDIANA
                                                                 11EPALES             2111202
                                                                  0074 FEET  DEPTH  CLASS 00

-------
  APPENDIX E
TRIBUTARY DATA

-------
STORE! RETRIEVAL DATE 76/03/30
                                                                  1845A1
                                                                 41 33 24.0 085 25 27.0 4
                                                                 DALLAS LK-HACKENBUKG LK CONNECT I
                                                                 18      7.5 OLIVER LAKE
                                                                 0/OALLAS LAKE
                                                                 Nirf END OF LAKE APPROACH BY BOAT
                                                                 11EPALES             2111204
                                                                  0000 FEET  DEPTH  CLASS 00

DATE
FROM
TO
73/07/14
73/08/12
73/09/08
73/10/06
73/11/09
73/12/08
74/02/09
74/02/23
74/03/09
74/03/23
74/04/13
74/05/11

00630
00625
TIME DEPTH N02&N03 TOT KJEL
OF
DAY FEET
11 30
13 00
10 05

13 03
09 00
11 30
11 15
12 00
12 00
10 15
15 45
N-TOTAL
MG/L
0.010K
0.010K
0.010K
0.010K
0.012
0.028
0.420
0.750
0.750
1.000
0.910
0.860
N
MG/L
1.100
0.960
0.690
0.970
0.900
1.900
1.000
0.800
1.800
1.000
1.200
1.500
00610
NH3-N
TOTAL
MG/L
0.046
0.019
0.014
0.017
0.056
0.184
0.160
0.130
0.085
0.010
0.025
0.120
00671
PHOS-DIS
ORTHO
MG/L P
0.005K
0.010
0.005K
0.005K
0.005K
0.016
0.005
0.015
0.025
0.005
0.010
0.025
00665
PHOS-TOT

MG/L P
0.010
0.015
0.010
0.020
0.020
0.140
0.045
0.030
0.135
0.055
0.035
0.120
   K VALUE KNOWN TO BE
   LESS THAN INDICATED

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STORET RETRIEVAL DATE 76/03/30
                                                                  1845B1
                                                                 41 32 45.0 085 24 44.0 4
                                                                 DALLAS LK-WRESTLER LK CONNECTION
                                                                 18      7.5 OLIVER LAKE
                                                                 I/DALLAS LAKE
                                                                 BANK SAMPLE TAKE FROM E BANK
                                                                 11EPALES             2111204
                                                                  0000 FEET  DEPTH  CLASS 00
DATE
FROM
TO
73/06/09
73/07/14
73/08/12
73/09/08
73/10/06
73/11/09
73/12/08
74/01/22
74/02/09
74/02/23
74/03/09
74/03/23
74/04/13
74/05/11
00630 00625
TIME DEPTH N02&N03 TOT KJEL
OF N-TOTAL N
DAY FEET
13
10
13
09

12
09

11
10
12
11
09
15
05
15
25
30

00
00

00
00
45
00
30
10
MG/L MG/L
0.390
0.014
0.010K
0.010K . (
0.010K
0.040
0.076
0.300
1.200
.600
.760
.000
.690
.260
.950
.300
.200
.000
1.600 3.400
1.520 2.150
1.340 2.000
1.120 2.900
0.880 1.000
00610 00671 00665
NH3-N PHOS-DIS PHOS-TOT
TOTAL ORTHO
MG/L
0.016
0.065
0.026
0.013
0.020
0.520
0.276
0.240
0.185
0.240
0.150
0.075
0.115
0.200
MG/L P
0.005K
0.005
0.010
0.005K
0.005K
0.036
0.008
0.010
0.010
0.020
0.020
0.020
0.015
0.055
MG/L P
0.030
0.015
0.015
0.010
0.020
0.045
0.075
0.055
0.050
0.050
0.090
0.070
0.030
0.115
   K VALUE KNOWN TO BE
   LESS THAN INDICATED

-------