U.S. ENVIRONMENTAL PROTECTION AGENCY
           NATIONAL EUTROPHICATION SURVEY
                    WORKING PAPER SERIES
                                        REPORT
                                         ON
                                      LAKE HERMAN
                                      LAKE COUNTY
                                      SOUTH DAKOTA
                                     EPA REGION VIII
                                   WORKING PAPER No, 609
 CORVALLIS ENVIRONMENTAL RESEARCH LABORATORY - CORVALLIS, OREGON
                             and
ENVIRONMENTAL MONITORING & SUPPORT LABORATORY - LAS VEGAS, NEVADA
 699-440

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                                        REPORT
                                          ON
                                      LAKE HERMAN
                                      LAKE COUNTY
                                      SOUTH DAKOTA
                                    EPA REGION VIII
                                 WORKING PAPER No, 609
           WlTH THE COOPERATION OF THE
SOUTH DAKOTA DEPARTMENT OF ENVIRONMENTAL PROTECTION
                     AND THE
           SOUTH DAKOTA NATIONAL GUARD
                  JANUARY, ]977

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                               CONTENTS
                                                               Page

  Foreward                                                      ii
  List of South Dakota Study Lakes                              iv
  Lake and Drainage Area Map                                     v

  Sections
  I.   Conclusions                                                1
 II.   Lake and Drainage Basin Characteristics                    1
III.   Lake Water Quality Summary                                 2
 IV.   Nutrient Loadings                                          3
  V.   Literature Reviewed                                        7
 VI.   Appendices                                                 8

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                                 11
                          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 freshwater 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)j,
and water quality monitoring [§106 and §305(b)] activities mandated
by the Federal Water Pollution Control Act Amendments of 1972.

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                                 iii
    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
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 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 South Dakota Departments of
Environmental Protection and Game, Fish and Parks for professional
involvement, to the South Dakota National Guard for conducting the
tributary sampling phase of the Survey, and to those wastewater
treatment plant operators who voluntarily provided effluent samples.

    Allyn Lockner, Secretary, and Blaine Barker and Duane Murphy,
Department of Environmental Quality; Douglas Hansen, Department
of Game, Fish and Parks; and James Hayden, Director, State Lakes
Preservation Committee 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 Duane L. Corning, the Adjutant General of South
Dakota, and Project Officer Colonel Robert D. Chalberg, who directed
the volunteer efforts of the South Dakota National Guardsmen, are also
gratefully acknowledged for their assistance to the Survey.

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                                  tv
                    NATIONAL EUTROPHICATION SURVEY

                              STUDY LAKES

                         STATE OF SOUTH DAKOTA
LAKE NAME

Albert
Al v i n
Angostura
Brant
Byron
Clear
Clear
Cochrane
Cottonwood
Deerfield
Enemy Swim
Herman
John
Kampeska
Madison
Mitchell
Norden
East Oakwood
West Oakwood
Pactola
Pickerel
Poinsett
Red Iron South
Richmond
Roy
Sand
Sheridan
Stockdale
East Vermillion
Wall
Waubay
COUNTY

Kingsbury
Lincoln
Fall River
Lake
Beadle
Marshall
Minnehaha
Deuel
Spink
Pennington
Day
Lake  .
Hamlin
Codington
Lake
Davidson
Hamlin
Brookings
Brookings
Pennington
Day
Brookings,
Marshall
Brown
Marshall
Brown
Pennington
Custer
McCook
Minnehaha
Day
Lake

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LAKES HERMAN, MADISON,  & BRANT

    ®    TriDJtary Sarpling Site
    X    Lake Sampling Site
                                              4«°00 —

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                                 LAKE HERMAN
                               STORET NO. 4612

 I.   INTRODUCTION
     Due to lack of flows, only a few tributary samples and no outlet
 samples were taken.  Therefore, this report relates only to the lake
 sampling data.  However, the few tributary sampling data obtained are
 included in Appendix D for the record.
II.   CONCLUSIONS
     A.  Trophic Condition:
             Survey data indicate that Lake Herman is eutrophic.  It
         ranked twenty-fifth in overall trophic quality when the 31
         South Dakota lakes sampled in 1974 were compared using a com-
         bination of six water quality parameters*.  Twenty-five of the
         lakes had less median total phosphorus, 27 had less median dis-
         solved orthophosphorus, 20 had less median inorganic nitrogen,
         20 had less mean chlorophyll a^, and 22 had less mean Secchi disc
         transparency."
             Survey limnologists noted a heavy algal bloom and extensive
         beds of submerged macrophytes in July, and this reportedly is an
         annual occurrence (Churchill et al., 1975).
     B.  Rate-Limiting Nutrient:
             The algal assay results indicate that the lake was nitrogen
         limited in April.  The lake data indicate nitrogen limitation at
         all sampling times.
 * See Appendix A.

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III.   LAKE CHARACTER1STICSf
      A.  Lake Morphometry  :
          1.   Surface area:  5.46 kilometers2.
          2.   Mean depth:  1.7 meters.
          3.   Maximum depth:  2.4 meters.
          4.   Volume:  9.282 x 106 m3.
          5.   Mean hydraulic retention  time:   3.3 years.
      B.  Precipitation*:
          1.   Year of sampling:  34.5 centimeters.
          2.   Mean annual:  56.6 centimeters.
  t Table of metric conversions—Appendix  B.
  tt Murphey, 1974.
  * See Working Paper No.  175.  "...  Survey Methods,  1973-1976",

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IV.   LAKE WATER QUALITY SUMMARY
     Lake Herman 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 one
 or  more depths at two stations on the lake (see map, page v).  During
 each visit, a single depth-integrated (near bottom 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 2.1 meters
 at  station 1 and 1.2 meters at station 2.
     The sampling results are presented in full in Appendix C and are
 summarized in the following table.

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PARAMETER


TEMP (C)


DISS OXY (MG/L)


CNDCTVY (MCROMO)


PH (STAND UNITS)


TOT ALK (MG/L)


TOT P (MG/L)


ORTHO P (MG/L)


N02+N03 (MG/L)


AMMONIA (MG/L)


KoEL N  (MG/L)


INORG N (MG/L)


TOTAL N (MG/L)


CHLRPYL A (Ur,/L>


SECCHI  (METEPS)
       A.  SUMMARY  UF PHYSICAL AND




       1ST SAMPLING (  4/23/74)


             2 SITES


     RANGE        MEAN   MEDIAN


 10.6  -  10.7    10.6    10.6


 10.4  -  10.6    10.5    10.5


 762.  -  764.    763.    763.


  8.3  -   8.3     8.3     8.3


 169.  -  192.    190.    190.


0.209  - 0.267   0.230   0.223


0.040  - 0.074   0.054   0.051


0.040  - 0.120   0.07?   0.065


0.0*0  - 0.090   0.060   0.055


1.500  - 1.600   1.550   1.550


0.080  - 0.210   0.132   0.120


1.580  - 1.650   1.622   1.630


 22.4  -  ?4.0    23.2    23.2


  0.5  -   0.5     0.5     0.5
                                                        CHEMICAL CHARACTERISTICS FOR LAKE HERMAN
                                                         STORET COOE 4612

                                                                   2ND SAMPLING ( 7/12/74)

                                                                         2 SITES
     RANGE


 25.3  -  27.0


  6.4  -  12.0


1100.  - 1117.


  9.2  -   9.6


 156.  -  166.


0.321  - 0.396


0.169  - 0.263


0.060  - 0.500


0.090  - 0.900


2.700  - 3.700


0.170  - 1.400


2.770  - 3.800


 67.7  - 161.2


  0.3  -   0.5
 MEAN   MEDIAN


 26.1    26.0


  8.9     8.6


1105.   1101.


  9.4     9.5


 161.    161.


0.360   0.361


0.214   0.212


0.182   0.085


0.372   0.250


3.175   3.150


0.555   0.325


3.357


114.4
  .0.4
3.430


114.4


  0.4
       3RD SAMPLING  ( 9/20/74)


             2 SITES


     HANGE        MEAN   MEDIAN


 16.3  -  16.3    16.3    16.3


  7.2  -   7.8     7.5     7.5


 983.  - 1006.    991.    983.


  8.4  -   8.6     8.5     8.5


 228.  -  246.    237.    237.


0.604  - 0.690   0.647   0.647


0.389  - 0.397   0.393   0.393


0.040  - 0.050   0.045   0.045


0.040  - 0.050   0.045   0.045    *•


2.200  - 2.600   2.400   2.400


0.090  - 0.090   0.090   0.090


2.250  - 2.640   2.445   2.445


 29.5  -  47.6    38.5    38.5


  0.3  -   0.3     0.3     0.3

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B.  Biological characteristics:

    1.   Phytoplankton -
        Sampling
        Date

        04/23/74
        07/12/74
        09/20/74
    2.  Chlorophyll a_ -

        Sampling
        Date

        04/23/74
        07/12/74
        09/20/74
Dominant
Genera
1.
2.
3.
4.
5.
1.
2.
3.
4.
5.
1.
2.
3.
4.
5.
Centric diatoms
Dactylococcopsis sp.
Chroomonas sp.
Melosira sp.
Synedra sp.
Other genera

        Total

Aphanizomenon sp.
Chroomonas sp.
Scnroede'rTa sp.
Microcystis sp.
Aphanocapsa sp.
Other genera

        Total

Dactylococcopsis sp.
Merismopedia sp.
Stephanodiscus sp.
Microcystis sp.
Chroomonas sp.
Other genera

        Total
Station
Number

   1
   2

   1
   2

   1
   2
Algal Units
per ml	

   4,011
   3,735
   2,185
     498
     138
     748
  11,315

  14,869
     471
     135
      67
      67
     101

  15,710

   2,974
   2,811
   1,100
     733
     530
   2.199

  10,347
                        Chlorophyll
                        (yg/D

                            24.0
                            22.4

                            67.7
                           161.2

                            47.6
                            29.5

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0.080
0.130
0.130
0.080
0.274
0.274
1.274
1.274
11.2
9.8
34.8
29.5
C.  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
        0.050 P
        0.050 P + 1.0 N
        1.0 N
    2.  Discussion -
            The control yield of the assay alga, Selenastrum capri-
        cornutum, indicates that the potential primary productivity
        of Lake Herman was high at the time the sample was collected
        (04/23/74).  Also, the significant increase in yield with the
        addition of nitrogen alone indicates that the lake was limited
        by nitrogen at that time.  Note that the addition of phosphorus
        alone did not result in an increased yield.
            The lake data also indicate nitrogen limitation; i.e.,
        the mean inorganic nitrogen/orthophosphorus ratios were 3/1
        or less at all sampling times.

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V.  LITERATURE REVIEWED

    Churchill, Constance L., Clyde K. Brashier, and Dan Limmer, 1975.
        Evaluation of a recreational lake rehabilitation project.  Proj.
        Compl. Rept. for OWRT Proj. No. B-028-SDAK.  Dakota St. Coll.,
        Madison, and Water Resources Inst., SD State U., Brookings.

    Ketelle, Martha J., and Paul D. Uttormark, 1971.  Problem lakes in
        the United States.  EPA Water Poll. Contr. Res. Ser. Proj. 16010
        EHR, Wash., DC.

    Murphey, Duane G., 1974.  Personal communication (lake morphometry).
        SD Dept. of Env. Prot., Pierre.

    Petrie, Lester R., and L. Rodney Larson, 1966 (?).  Quality of water
        in selected lakes of eastern South Dakota.  Rept. of Inv. #1,
        SD Water Res. Comm., Pierre.

    Schmidt, Artwin E., 1967.  Limnology of selected South Dakota lakes.
        MS thesis, SD St. U., Brookings.

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                                  8
VI.   APPENDICES
                                  APPENDIX A
                                  LAKE  RANKINGS

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LAKE DATA TO BE USED IN RANKINGS
LAKE
CODE  LAKE NAME
4601  LAKE ALBERT
4602  ALVIN LAKE
4603  ANGOSTURA RESERVOIR
4604  BRANT LAKE
4605  LAKE BYRON
4606  CLEAR LAKE
4607  CLEAR LAKE
4608  COCHRANE LAKE
4609  COTTONWOOO LAKE
4610  DEERFIELD RESERVOIR
4611  ENEMY SWIM LAKE
4612  LAKE HERMAN
4613  ST JOHN LAKE     /
4614  LAKE KAMPESKA
4615  MADISON LAKE
4616  LAKE MITCHELL
4617  LAKE NOROEN
4618  OAKWOQD LAKE EAST
4619  OAKWOOD LAKE WEST
4630  PACTOLA RESERVOIR
4631  PICKEREL LAKE
4622  LAKE POINSETT
4623  LAKE RED IRON SOUTH
4624  RICHMOND LAKE
4625  ROY LAKE
4626  SAND LAKE
4627  SHERIDAN LAKE
4628  STOCKADE LAKE
MEDIAN
TOTAL P
0.321
0.067
0.019
0.194
0.443
0.027
1.400
0.037
0.685
0.033
0.037
0.340
0.348
0.220
0.259
0.099
0.256
0.146
0.181
0.011
0.049
0.115
0.042
0.187
0.034
0.489
0.053
0.233
MEDIAN
INORG N
0.170
0.970
0.160
0.130
0.370
0.075
0.270 .
0.150
0.265
0.080
0.085
- 0.155
0.080
0.105
0.090
0.085
0.165
0.175
0.135
0.070
0.095
0.315
0 . 1 10
0.150
0.070
0.110
0.105
0.150
500-
.MEAN SEC
489.111
442.833
423.333
432.833
488.333
430.167
495.333
446.000
490.333
303.333
442.600
485.000
489.400
468.889
445.555
465.833
488.667
487.000
485.833
248.444
439.833
468.444
430.333
410.000
431.000-
471.800
394.000
432.000
MEAN
CHLORA
106.289
4.700
3.717
34.150
149.350
11.983
691.000
15.683
112.017
3.650
14.200
58.733
120.880
20.567
22.578
14.883
46.800
113.600
159.667
1.478
15.833
40.211
6.883
18.467
13.333.
65.790
15.433
25.400
15-
MIN DO
9.200
9.400
13.000
11.800
9.000
8.800
7.000
15.000
8.600
15.000
8.200
8.600
9.600
8.200
14.000
13.800
10.000
10.000
9.600
11.000
9.600
10.000
7.600
10.000
1 1*0 00
12.800
15.000
15.000
MEDIAN
DISS ORTHO P
0.019
0.017
0.005
0.113
0.146
0.009
0.468
0.008
0.417
0.022
0.013
0.174
0.025
0.128
0.107
0.015
0.050
0.009
0.021
0.006
0.009
0.023
0.010
. 0.144
0.010
0.288
0.016
0.109

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LAKE DATA TO BE USED IN RANKINGS
LAKE
CODE  LAKE NAME
4629  LAKE VERMILLION
4630  WALL LAKE
4631  WAU8AY LAKE NORTH
MEDIAN
TOTAL P
0.211
0.194
0.093
MEDIAN
INORG N
0.100
0.160
0.145
500-
MEAN SEC
472.833
441.667
469.555
MEAN
CHLORA
100.600
55.267
127.033
15-
MIN DO
9.200
7.400
11.400
MEDIAN
DISS ORTHO
0.092
0.076
0.023

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PERCENT OF LAKES WITH HIGHER VALUES  (NUMBER  OF  LAKES  WITH  HIGHER  VALUES)
LAKE
CODE  LAKE NAME
      LAKE ALBERT
4602  ALVIN LAKE
4603  ANGOSTURA RESERVOIR
4604  BRANT LAKE
4605  LAKE BYRON
4606  CLEAR LAKE
4607  CLEAR LAKE
4608  COCHRANE LAKE
4609  COTTONWOOO LAKE
4610  OEERFIELD RESERVOIR
4611  ENEMY SWIM LAKE
46ia  LAKE HERMAN
4613  ST JOHN LAKE
4614  LAKE KAMPESKA
4615  MADISON LAKE
4616  LAKE MITCHELL
4617  LAKE NOROEN
4618  OAKWOOO LAKE EAST
4619  OAKWOOD LAKE WEST
4620  PACTOLA RESERVOIR
4621  PICKEREL LAKE
4622  LAKE POINSETT
4623  LAKE RED IRON SOUTH
4624  RICHMOND LAKE
4625  ROY LAKE
4626  SAND LAKE
4627  SHERIDAN LAKE
4628  STOCKADE LAKE
MEDIAN
TOTAL P
20 (
67 (
97 (
40 <
10 (
93 (
0 (
83 (
3 (
90 (
80 (
17 (
13 <
33 (
27 (
60 (
23 (
53 <
50 (
100 (
73 (
57 <
77 (
47 (
87 (
7 (
70 (
30 <
6)
20)
29)
12)
3)
28)
0)
25)
1)
27)
24)
5)
4)
10)
8)
18)
7)
16)
15)
30)
22)
17)
23)
14)
26)
2)
21)
9)
MEDIAN
INORG N
20 <
0 (
30 (
53 (
3 <
93 <
10 <
40 (
13 (
88 1
82 <
33 <
88 (
65 \
77 1
82 1
23 1
17 I
50 (
98 i
73 <
' 7 <
58 i
40
98
58
65
40
6)
0)
9)
16)
: i)
; 28)
; 3)
: n>
; 4)
; 26)
i 24)
; 10)
1 26)
; i9>
1 23>
[ 24)
! 7)
( 5)
1 15)
[ 29)
I 22)
I 2)
( 17)
( 11)
( 29)
( 17)
t 19)
( 11)
500-
MEAN SEC
10 <
57 <
87 <
70 <
17 1
83 <
0 I
50 1
3 1
97 1
60 1
27 <
7 I
40 '
53 i
47 <
13
20
23
100
67 i
43
80
90
77
33
93
73
! 3)
: 17.)
: 26)
: 2i>
: 5)
: 25)
! 0)
1 15)
; i)
: 29)
I 18)
[ 8)
I 2)
I 12)
I 16)
( 14)
t 4)
( 6)
t 7)
( 30)
I 20)
( 13)
< 24)
( 27)
( 23)
( 10)
( 26)
< 22)
MEAN
CHLORA
23 (
90 (
93 (
47 <
7 1
83 1
0 <
67 1
20 1
97 1
77 1
33 1
13 I
57 1
53 I
73 I
40 <
17 i
3 i
100
63 i
43 <
87
60
80
30
70
50
7)
27)
28)
14)
; 2>
; 25)
: o>
i 20)
: 6>
[ 29)
I 23)
! 10)
I 4)
; 17)
1 16)
! 22)
( 12)
1 5)
t 1)
t 30)
( 19)
t 13)
( 26)
( 18)
( 24)
( 9)
( 21)
( 15)
15-
MIN DO
68 I
63 (
20 (
27 (
73 (
77 (
100 1
5 (
82 1
5 i
88 1
82 1
53 I
88 I
13 I
17 i
45 i
45 i
58 i
35
58 i
45
93
45
35
23
5
5
: 20)
: 19)
6)
: 8)
; 22)
: 23)
! 30)
: o>
: 24>
: o)
:. 26>
[ 24)
[ 16)
I 26)
1 4)
[ 5)
I 12)
I 12)
( 17)
( 10)
( 17)
( 12)
( 28)
( 12)
( 10)
( 7)
( 0)
( 0)
MEDIAN
OISS ORTHO P
60 (
63 (
100 (
23 <
13 (
90 1
0 I
93 1
3 <
53 1
73 I
• 10 1
43 <
20 I
30 1
70 (
40 «
85 i
57 i
97 i
85 '
47 i
78
17
78 i
7
67
27
; 18)
: 19)
30)
: 7>
: 4>
; 27)
: o>
[ 28)
! 1)
[ 16)
1 22)
( 3)
I 13)
; 6)
I 9)
I 21)
I 12)
t 25)
I 17)
( 29)
! 25)
( 14)
I 23)
( 5)
( 23)
( 2)
( 20)
( 8)
INDEX
NO
201
340
427
260
123
519
110
338
124
430
460
202
217
303
253
349
184
237
241
530
419
242
473
299
455
158
370
225

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PERCENT OF LAKES WITH HIGHER VALUES (NUMBER OF LAKES WITH HIGHER VALUES)
LAKE
CODE  LAKE NAME
4629  LAKE VERMILLION
4630  WALL LAKE
4631  WAUBAY LAKE NORTH
MEDIAN
TOTAL P
37
43
63
< 11)
( 13)
( 19)
MEDIAN
INORG N
70 <
27 '
47 i
( 21)
( 8)
( 14)
500-
MEAN SEC
30
63
37
( 9)
( 19)
( 11)
MEAN
CHLORA
27
37
10
( 8)
( ID
( 3)
15-
MIN DO
68
97
30
( 20 >
( 29)
( 9)
MEDIAN
DISS ORTHO P
33 <
37 (
50 (
10)
11)
15)
INDEX
NO
265
304
237

-------
LAKES RANKED BY INDEX NOS.




RANK  LAKE CODE  LAKE NAME               INDEX NO






   1  4630       PACTOLA RESERVOIR          530




   2  4606       CLEAR LAKE                 519




   3  4623       LAKE RED IRON SOUTH        473




   4  4611       ENEMY SWIM LAKE            460




   5  4625       ROY LAKE                   455




   6  4610       DEERFIELD RESERVOIR        430




   7  4603       ANGOSTURA RESERVOIR        427




   8  4621       PICKEREL LAKE              419




   9  4627       SHERIDAN LAKE              370




  10  4616       LAKE MITCHELL              349




  11  4602       ALVIN LAKE                 340.




  12  4608       COCHRANE LAKE              338




  13  4630       WALL LAKE                  304




  14  4614       LAKE KAMPESKA              303




  15  4624       RICHMOND LAKE              299



  16  4629       LAKE VERMILLION            265




  17  4604       BRANT LAKE                 260




  18  4615       MADISON LAKE               253




  19  4622       LAKE POINSETT              242




  20  4619       OAKWOOD LAKE WEST          241




  21  4631       WAUBAY LAKE NORTH          237




  22  4618       OAKWOOD LAKE EAST          237




  23  4628       STOCKADE LAKE              225



  24  4613       ST JOHN LAKE               217




  25  4612       LAKE HERMAN                202




  26  4601       LAKE ALBERT                201



  27  4617       LAKE NORDEN                184




  28  4626       SAND LAKE                  158

-------
LAKES RANKED BY INDEX NOS.




RANK  LAKE CODE  LAKE NAME               INDEX NO
  29  4609       COTTONWOOD LAKE



  30  4605       LAKE BYRON                 123



  31  4607       CLEAR LAKE                 110

-------
    APPENDIX B





CONVERSION FACTORS

-------
                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

-------
        APPENDIX C
PHYSICAL and CHEMICAL DATA

-------
STORE! RETRIEVAL DATE 76/05/03
                                                                  461201
                                                                 43 58 33.0 097 09 56.0 3
                                                                 LAKE HERMAN
                                                                         SOuTM DAKOTA
                                                                                          091292
11EPALES 211
0005 FEET DEPTH CLASS

DATE
FRO'
TO
74/04/23

74/07/12

74/09/20

DATE
FROM
TO
74/04/23

74/07/12

74/09/20





TIME
OF
DAY
15
15
14
14
09



50
50
55
55
40

TIME
OF
DAY
15
15
14
14
09
09
09
09


50
50

DEPTH

FEET
0000
0007
0000
0002
0000

DEPTH

FEET
0000
0007
55 0000
55 0002
40
40
40
40
0000
0001
0002
0003
00010
WATER
TEMP
CENT
10.6
10.6
25.3
25.3
16.3
00665
PHOS-TOT

MG/L P
0.211
0.267
0.362
0.396
0.690



00300
DO

MG/L

10.6
6.4
6.4
7.2
32217
CHLRPHYL
A
UG/L
24.0

67.7

47.6



00077 00094
TRANSP CNOUCTVY
SECCHI FIELD
INCHES MICHOMHO
18 764
764
18 1100
1100
11 1006
00031
INCDT LT
REMN1NG
PERCENT



1.0

50.0
5.0
1.0
00400 00410
PH T ALK
CAC03
SU MG/L
8.30 189
8.30 189
9.60 162
9.20 156
8.63 246












00610
NH3-N
TOTAL
MG/L
0.060
O.OSO
0.100
0.400
0.050












1202
00
00625 00630
TOT KJEL N02t>N03
N N-TOTAL
MG/L MG/L
1.500 0.080
1.600 0.050
2.700 0.070
3.300 0.060
2.600 0.040














00671
PnOS-OlS
ORTHO
MG/L
0.
0.
0.
0.
0.












P
040
042
263
244
397













-------
STORET RETRIEVAL DATE 7&/os/o3
                                                                   <»61202
                                                                  43  59  54.0  097  10  25.0  3
                                                                  LAKt HERMAN
                                                                          SOuTH DAKOTA
                                                                                           0912*2
                                                                  11EPALES              2111202
                                                                   0007 FEET  DEPTH   CLASS  00

DATE
FROM
TO
74/04/33

74/07/12

74/09/20


DATE
FROM
TO
74/04/23

74/07/12

74/09/20

TIME DEPTH
OF
DAY FEET
16 05 0000
16 05 0003
14 15 0000
14 15 0003
09 25 0000
09 25 0004

TIME DEPTH
OF
DAY FEET
16 05 0000
16 05 0003
14 15 0000
14 15 0003
09 ?5 0000
00010
WATER
TEMP
CENT
10.6
10.7
27.0
26.8
16.3
16.3
00665
PHOS-TOT

MG/L P
0.209
0.235
0.360
0.321
0.604
00300
DO

MG/L

10.4
10.8
12.0
7.8

32217
CHLRPHYL
A
UG/L
22.4

161.2

29.5
00077
TRANSP
SECCHl
INCHES
18

12

13

00031
INCDT LT
REMNING
PERCENT



1.0

00094
CNDUCTVY
FIELD
MICROMHO
762
762
1117
1102
983
983









00400
PH

SU
8.30
8.30
9.60
9.4Q
8.45
8.4?









00410
T ALK
CAC03
MG/L
192
191
159
166
228










00610
NH3-N
TOTAL
MG/L
0.040
0.090
0.090
0.900
0.040










00625
TOT KJEL
N
MG/L
1.600
1.500
3.700
3.000
2.200










00630
N02&N03
N-TOTAL
MG/L
0.040
0.120
0.100
0.500
0.050










00671
PHOS-DIS
OrtTHO
MG/L P
0.060
0.074
0.180
0.169
0.389











-------
  APPENDIX D
TRIBUTARY DATA

-------
STORET RETRIEVAL DATE 76/05/04
                    00630     00625     00610
DATE   TIME DEPTH N02&N03   TOT KJEL   NH3-N
FSOM    OF        N-TOTAL      N     <  TOTAL
 TO    OAr  FEET    MG/L      MG/L      MG/L
3.300     3.900     1.300
0.120     3.600     0.560
                                           461231
                                          ^3 5b 15.0 097 10 00.0 4
                                          UNNAMED CREEK
                                          46      7.b LAKE
                                          T/LA;\£ HEKMAN
                                          BRDG ON SEC RO 4
                                          11EPALES
                                           oooo FEET  DEPTH
                                                                                MI
                                                                                          091393
                                                                                     S* OF MADISON
                                                                                      2111304
                                                                                    CLASS uo
                                                    OOt.71     00665
                                                  PriOS-OIS  PHOS-TOT
                                                   ORTHO
                                                   MG/L P    MG/L P
75/06/15 09 25
                                                     0.330
                                                     0.220
                                                             O.S2C
                                                             0.520

-------
STOKET RETRIEVAL DATE 76/05/04
  DATE   TIME DEPTH N02&N03
  FROM    OF
   TO    DAY  FEET

75/04/13 14 05
75/03/18 I* 10
75/06/15 09 00
                                                                  4612C1
                                                                 44 00 30.0 C97  10 bO.O 4
T/LAMi
100 FT UPSTKM FrtM
11EPALES
 0000 FEET  Ot>Tn
BWuG 2.S Ml
   2111204
 CLASS 00
                                                                                               * MADISON
0630 00625
!&N03 TOT i^JEL
OTAL N
IG/L MG/L
1.700
0.020
0.005
?.200
2.500
2.400
00610 00671 00665
NM3-N PHOS-OIS PHOb-TOT
TOTAL O^THO
MG/L MG/L P MG/L P
0.525
0.075
0.045
0.540
0.040
0.030
0.580
0.300
0.22C

-------
                                    TRIBUTARY  FLOW  INFORMATION  FOR  SOUTn  DAKOTA
                                                                                           05/03/76
LAKE CODE 4612
     TOTAL DRAINAGE AREA OF LAKE
-------
                                   TRIBUTARY FLOW INFORMATION FOR SOUTH DAKOTA
                                                                                          OS/03/76
LAKE CODE 4612     HERMAN
     MEAN MONTHLV FLO*S AND DAILY FLOWS
TRIBUTARY   MONTH
4612C1
4612ZZ
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
74
74
74
75
75
75
75
75
75
75
75
75
74
74
74
75
75
75
75
75
75
75
75
75
                            MEAN FLOW  DAY
0.0
0.0
0.0
0.0
0.0
0.0
0.028
0.028
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.014
0.008
0.0
0.0
0.0
0.0
13
6
5
19
9
2
13
6
15
13

7












                                                   FLO*  DAY
                                                  0.0
                                                                     FLUW  UAY
                                                                                       FLO*
0.0
0.0
0.0
0.0
0.0
0.0
0.142
0.014
0.0
0.0







18

26
                                                                    0.008
                                                                    0.0

-------