U.S. ENVIRONMENTAL PROTECTION AGENCY
               NATIONAL EUTROPHICATION SURVEY
                         WORKING PAPER SERIES
                                                 REPORT
                                                  ON
                                            LAKE TOHOPEKALIGA
                                             OSCEOLA COUNTY
                                                FLORIDA
                                             EPA REGION IV
                                          WORKING PAPER No, 277
     CORVALLIS ENVIRONMENTAL RESEARCH LABORATORY - CORVALLIS, OREGON
                                  and
    ENVIRONMENTAL MONITORING & SUPPORT LABORATORY - LAS VEGAS, NEVADA
•&G.P.O. 699-440

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                                                             REPORT
•'' 5                                                             ON
 i                                                     LAKE TOHOPEKALIGA
^                                                      OSCEOLA COUNTY
 >                                                          FLORIDA
 *>                                                      EPA REGION IV
 S"                                                  WORKING PAPER No, 277
                                 WITH THE COOPERATION OF THE
                       FLORIDA DEPARTMENT OF ENVIRONMENTAL REGULATION
                                          AND THE
                                   FLORIDA NATIONAL GUARD
                                       DECEMBER, 1977

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                                CONTENTS
                                                               Page
  Foreword                                                      ii
  List of Florida Lakes                                          iv
  Lake and Drainage Area  Map                                     v

  Sections
  I.   Conclusions                                                1
 II.   Lake and Drainage Basin  Characteristics                     4
III.   Lake Water Quality  Summary                                 5
 IV.   Nutrient Loadings                                          10
  V.   Literature Reviewed                                       15
 VI.   Appendices                                                16

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                                 11
                          £ 0_ R. E_ W 0. i D.


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

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                                    Ill
    Beyond the single lake analysis, broader based correlations
betv/een 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 Florida Department of Environ-
mental Regulation for professional involvement and to the Florida
National Guard for conducting the tributary sampling phase of the
Survey.

    Joseph W. Landers, Jr., Secretary of the Department of Environ-
mental Regulation; John A Redmond, former Director of the Division
of Planning, Technical Assistance, and Grants; and Dr. Tim S.  Stuart,
Chief of the Bureau of Water Quality, provided invaluable lake docu-
mentation and counsel during the survey, reviewed the preliminary
reports, and provided critiques most useful in the preparation of this
Working Paper series.

    Major General Henry W. McMillan (Retired), then the Adjutant
General of Florida, and Project Officer Colonel  Hugo F.  Windham,
who directed the volunteer efforts of the Florida National Guard,
are also gratefully acknowledged for their assistance to the Survey.

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                                     IV
 LAKE NAME

 Alligator
.Apopka
 Banana
 Crescent
 Doctors
 Dora
 East Tohopekaliga
 Effie
 Eloise
 George
 Gibson
 Glenada
 Griffin
 Haines
 Hancock
 Horseshoe
 Howe11
 Istokpoga
 Jessie
 Jessup
 Kissimmee
 Lawne
 Lulu
 Marion
 Minnehaha
 Minneola
 Monroe
 Munson
 Okeechobee

 Poinsett
 Reedy
 Seminole

 Seminole
 South
 Talquin
 Tarpon
 Thonotosassa
 Tohopekaliga
 Trout
 Weohyakapka
 Yale
NATIONAL EUTROPHICATION  SURVEY

         STUDY LAKES

       STATE OF FLORIDA

                           COUNTY
                           Columbia
                           Lake, Orange
                           Polk
                           Flagler, Putnam
                           Clay
                           Lake
                           Osceola
                           Polk
                           Polk
                           Putnam, Volusia
                           Polk
                           Highlands
                           Lake
                           Polk
                           Polk
                           Seminole
                           Orange, Seminole
                           Highlands
                           Polk
                           Seminole
                           Osceola
                           Orange
                           Pol k
                           Polk
                           Orange
                           Lake
                           Seminole, Volusia
                           Leon
                           Glades, Hendry, Martin,
                            Okeechobee, Palm Beach
                           Brevard, Orange, Osceola
                           Polk
                           Jackson, FL; Decatur,
                            Seminole, GA
                           Pinellas
                           Brevard
                           Gadsden, Leon
                           Pinellas
                           Hillsborough
                           Osceola
                           Lake
                           Polk
                           Lake

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                 EAST LAKE TOHOPEKALIGA
                  & LAKE  TOHOPEKALIGA
                      Tributary Sampling Site
                    X Lake Sampling Site
                      Sewage Treatment Facility
                          5     10is Km.
                                       Mi.
•xtfi

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                            LAKE  TOHOPEKALIGA
                             STORE!  NO.  1241
I.   CONCLUSIONS
    A.   Trophic Condition:
            Survey data  and  a report by  others ,(Ketelle  and Uttormark,
        1971)  indicate that  Lake  Tohopekaliga  is  eutrophic.   It ranked
        28th in overall  trophic quality  when the  41  Florida water bodies
        sampled in 1973  were compared using a  combination of  six lake
        parameters*.   Twenty-seven of the  lakes had  less median total
        phosphorus,  28 had less median dissolved  phosphorus,  24 had
        less median inorganic nitrogen,  21 had less  mean chlorophyll
        a^,  and 25 had greater mean Secchi  disc transparency.
            Survey limnologists noted that the lake  water was humic-
        colored and observed surface concentrations  of algae  in March.
    B.   Rate-Limiting Nutrient:
            The algal assay  results  indicate that Lake Tohopekaliga
        was nitrogen limited at the  times  the  samples were collected
        (03/13/73 and 11/07/73).  The lake data indicate nitrogen
        limitation at the other sampling time  as  well.
    C.   Nutrient Controllability:
            1.   Point sources—It is calculated that point sources
        (including indirect  sources) accounted for 52.0% of the total
        phosphorus load  and  51.0% of the total nitrogen  load  to the
        lake during the  sampling  year.
  See  Appendix A.

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                             2
    The City of Orlando McLeod Road plant and the Orange County
Southwest plant collectively contributed 27.9% of the total phos-
phorus and 33.2% of the total nitrogen inputs to Lake Toho-
pekaliga.  Shingle Creek, which receives the effluent from these
plants, flows through extensive swampy areas where the channel
is poorly defined.  Although this area may be a nutrient sink
part of the year (Federico and Brezonik, 1975), it is assumed that
excessive nutrient loads, such as those discharged to the creek,
eventually reach Lake Tohopekaliga (McCaffrey, 1976).
    The phosphorus loading of 4.89 g/m2 measured during the samp-
ling year is 11 times that proposed by Vollenweider (Vollenweider
and Dillon, 1974) as a eutrophic loading.  Even complete removal
of phosphorus at the point sources considered in this report would
still leave a loading of 2.34 g/m2/yr (more than five times the
eutrophic loading); and, although the critical level for Florida
lakes may be somewhat higher than that suggested by Vollenweider
(see page 14) it does not seem likely that the degree of phos-
phorus reduction attainable by municipal point-source control
would result in a shift to phosphorus limitation and a significant
improvement in the trophic condition of the lake.
    The persistent nitrogen limitation during Survey sampling,
resulting from a combination of relatively low inorganic nitrogen
concentrations (median = 0.200 mg/1) and rather high orthophosphorus
levels (median = 0.152 mg/1), indicates nitrogen control might

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reduce the rate of eutrophication of the lake.  However, emphasis
during the Survey was on the controllability of phosphorus, and a
more intensive study of the nitrogen budget of Lake Tohopekaliga
is needed to assess the probable effects of point-source nitrogen
control.
    2.  Non-point sources—It is estimated that non-point sources
contributed about 48% of the total phosphorus load and 49% of the
total nitrogen load reaching Lake Tohopekaliga during the sampling
year.  The gaged tributaries contributed an estimated 33.3% of
the phosphorus and 36.5% of the nitrogen inputs.
    Reportedly, dairy wastes, pasture runoff, and urban drainage
contribute nutrients to the lake (Ketelle and Uttormark, 1971).

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II.   LAKE AND DRAINAGE BASIN CHARACTERISTICS1"

     A.   Morphometry  :

         1.   Surface area:   76.20 kilometers2.

         2.   Mean depth:   2.4 meters.

         3.   Maximum depth:   4.0 meters.

         4.   Volume:  182.880 x 106  m3.

         5.   Mean hydraulic  retention  time:  172 days.

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

         1.   Tributaries  -

                                           Drainage           Mean flow
             Name                          area (km2)*        (m3/sec)*

             Shingle Creek                     466.2             2.67
             Partin Canal                        26.4            • 0.31
             St.  Cloud Canal                    826.2             6.47
             Minor tributaries  &
              immediate drainage -             210.8             2.84

                            Totals          1,529.6             12.29**

         2.   Outlet -

             South Port Canal               1,605.8***          12.29

     C.   Precipitation****:

         1.   Year of sampling:   122.9  centimeters.

         2.   Mean annual:   134.1  centimeters.
 t Table of metric conversions—Appendix B.
 tt Anonymous,. 1972.
 * For limits of accuracy,  see  Working Paper No.  175,  "...Survey Methods,
   1973-1976".
 ** Sum of inflows adjusted to  equal  outflow.
 *** Includes area of lake.
 **** See Working Paper No. 175.

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                                       5
III.   WATER QUALITY SUMMARY
      Lake Tohopekaliga was sampled three times during 1973 by  means  of
  a pontoon-equipped Huey helicopter.   Each time,  samples  for physical
  and chemical  parameters were collected from four stations on  the  lake
  and from a number of depths at each  station (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 and third visits,  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 1.8  meters at
  stations 1 and 4 and 1.5 meters at stations 2 and 3.
      The sampling results are presented in full  in Appendix D  and  are
  summarized in the following table.

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PARAMETER


TEMP (C)


0155 GAY (MG/L)


CNDCTVY  (MCROMO)


PH (STAND UNITS)


TOT ALK  (MG/L)


TOT P  (MG/L)


ORThO P  (MG/D


IM02*N03  (MG/L)


AMMONIA  (MG/L)


KJEL N  (MG/L)


INORG N  (MG/L)


TOTAL N  (MG/L)


CHL^YL  A (UG/L)


SECCHI  (MtTt'^S)
                  MEAN   MEDIAN


                  25.7    25.2


                   6.7


                  190.
       A.  SUMMARY OF PHYSICAL AND



       1ST SAMPLING (  3/13/73)


             4 SITES


     RANGE


 24.6  -  29.C


  4.5  -   P.5


 180.  -  220.


  6.9  -  10.5


  21.  -   28.


O.lOo  - 0.600   0.2o7   0.262


0.01J  - 0.489   0.173   O.lib


                 0.13S




                 1.775


                 0.259


                 1.910


                  37.*
                                                        CHEMICAL CHARACTERISTICS  FOR
                                                         STORET COOE  1241
                                                               LAKE TOHOPEKALIGA
                   8.9


                   24.
o.oao  - 0.210


1.20u  - 2.600


0.190  - 0.500


1.270  - 3.02u


  7.9  -  66.9


  0. J  -   0.5
  6.9


 180.


  9.0


  25.
0.110


1.600
l.t


 3*.2


  0.-+
                                                                   2ND SAMPLING  (  9/  6/73)


                                                                         4  SITES
     KANGE


 28.a  -  29.b


  4.6  -   7.8


 162.  -  174.


  6.9  -   8.8


  27.  -   34.


0.138  - 0.770


0.053  - 0.690


0.090  - 0.170


O.OoO  - C.120


1.600  - 2.900


0.170  - 0.270


1.770  - J.OOO


 35.9  -  43.1


  0.6  -   0.9
                                                                                    3RU  SAMPLING  (ll/  7/73)


                                                                                          4  SITES
MEAN
29.1
5.9
170.
7.6
29.
0.461
0.377
0.120
0.102
2.120
0.222
2.240
39.5
0.8
MEDIAN
29.0
5.4
173.
7.0
27.
0.472
0.372
0.100
0.100
2.000
0.220
2.150
39.5
0.9
RANGE
22.7
7.2
1*1.
7.1
17.
0.129
0.042
0.030
0.040
1.300
0.070
1.360
4.6
0.7
- 23.1
7.2
- 153.
7.3
20.
- 0.538
- 0.420
- 0.150
- 0.070
- 1.700
- 0.220
- 1.750
- 19.6
0.9
MEAN
22.9
7.2
144.
7.2
19.
0.277
0.166
0.064
0.055
1.537
0.119
1.601
14.6
0.9
MEDIAN
23.0
7.2
142.
7.2
19.
0.238
0.146
0.030
0.050
1.600
0.090
1.630
17.0
0.9

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B.  Biological  characteristics:

    1.   Phytoplankton -
        Sampli ng
        Date

        03/13/73
        09/06/73
        11/07/73
    2.   Chlorophyll  a_ -

        Sampling
        Date

        03/13/73
        09/06/73
        11/07/73
Dominant
Genera
1.
2.
3.
4.
5.
1.
2.
3.
4.
5.
1.
2.
3.
4.
5.
Scenedesmus sja.
Anabaena sp.
Melosira sj).
Microcystis sp.
Dactylococcopsis sj),
Other genera
Total
Scenedesmus sp.
Dactylococcopsis s£,
Flagellates
Nitzschia sp.
Melosira sp.
Other genera
Total
Flagellates
Scenedesmus sp.
Microcystis sp.
Melosira sp.
Chroococcus s£.
Other genera
                                          Total
Station
Number

   1
   2
   3
   4

   1
   2
   3
   4

   1
   2
   3
   4
                           Algal  Units
                           per ml	
                              4,
                              1
    ,190
    ,178
     829
     698
     611
   4,803

  12,309

   7,700
   4,466
   3,234
   2,002
   1,540
   6.314

  25,256

   4,747
                                                           2,
                                                           1,
                                181
                                796
                              1,411
                                898
                              6,027

                             17,060
Chlorophyll  a
(yg/D

    7.9
   28.4
   66.9
   48.1
   35.9
   43.1
   38.
   40.
                                                              .1
                                                              ,9
    4.6
   16.5
   17.6
   19.6

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C.  Limiting Nutrient Study:
    1.  March sample -

        a.  Autoclaved, filtered, and nutrient spiked
                         Ortho P
                         Cone, (mg/1)
Spike (mg/1)

Control
 0.050 P
 0.050 P + 1.0
 1.0 N
        b.  Filtered and nutrient spiked -
Inorganic N
Cone,  (mg/1)
Maximum yield
(mg/1-dry wt.)
        Spike (mg/1)

        Control
         0.050 P
         0.050 P + 1.0 N
         1.0 N
                 Ortho P
                 Cone, (mg/1)

                      0.273
                      0.323
                      0.323
                      0.273
        November sample -

        a.   Autoclaved, filtered,  and nutrient spiked
        Spike (mg/1)

        Control
         0.050 P
         0.050 P + 1.0 N
         1.0 N
                 Ortho P
                 Cone, (mg/1)

                      0.210
                      0.260
                      0.260
                      0.210
        b.   Filtered and nutrient spiked -
        Spike (mg/1)

        Control
         0.050 P
         0.050 P + 1.0
         1.0 N
                 Ortho P
                 Cone, (mg/1)

                      0.200
                      0.250
                      0.250
                      0.200
0.266
0.266
1.266
1.266
Inorganic N
Cone, (mg/1)
0.263
0.263
1.263
1.263
ient spiked -
Inorganic N
Cone, (mg/1)
0.180
0.180
1.180
1.180
Inorganic N
Cone, (mg/1)
0.147
0.147
1.147
1.147
6.1
5.9
15.4
15.7
Maximum yield
(mg/1 -dry wt.)
4.0
3.8
15.4
15.0

Maximum yield
(mg/1 -dry wt. )
5.7
5.2
29.2
29.4
Maximum yield
(mg/1 -dry wt.J
3.7
3.3
25.7
27.7

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                             9
3.  Discussion -
        The control  yields of the assay alga,  Selenastrum capri-
    cornutum, indicate that the potential  primary prodictivity
    of Lake Tohopekaliga was high at the times the samples were
    collected.  Also,  in all assays, the lack  of increase in
    yields when only orthophosphorus was added and the marked
    increase in yields when nitrogen alone was added indicate
    the lake was nitrogen limited at those times.
        The lake data  also indicate nitrogen limitation;  the
    mean inorganic nitrogen/orthophosphorus ratios were less
    than 2/1 at all  sampling stations and times.

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                                      10
IV.   NUTRIENT LOADINGS
     (See Appendix E for data)
     For the determination of nutrient loadings,  the Florida  National
 Guard collected monthly near-surface grab samples  from each  of  the
 tributary sites indicated on the map (page v).   Sampling was  begun
 in  March, 1973, and was completed in February,  1974.
     Through an interagency agreement, stream flow  estimates  for the
 year of sampling and a "normalized"  or average  year were provided by
 the Florida District Office of the U.S. Geological  Survey  for the
 tributary sites nearest the lake.
     In this report, nutrient loads for South Port  Canal  (C-l),  Partin
 Canal  (B-l), and St.  Cloud Canal  (at East Lake  Tohopekaliga  outlet
 station 61  C-l) were determined by using a modification of a  U.S. Geolo-
 gical  Survey computer program for calculating stream loadings*.  The St.
 Cloud Canal phosphorus load measured at station 41  D-l  was about 29 times
 greater than the load measured at the outlet of East Lake  Tohopekaliga,
 and it is believed sampling station  41  D-l  was  too close to  the Saint
 Cloud wastewater treatment plant discharge point to permit adequate
 mixing of the effluent in the canal  at the sampling point.
     The nutrient loads attributed to upstream point sources  exceeded
 those measured in Shingle Creek at station A-l,  and the background loads
 for this stream and the unsampled "minor tributaries and immediate drain-
 age" ("II"  of U.S.G.S.) were estimated using the nutrient  loads, in kg/km2/yr,
 at  station  B-l and multiplying by the Shingle Creek and II areas in km2.
   See Working Paper No.  175.

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                                     11
    The indirect point-source loads leaving upstream East Lake Tohopekaliga
were calculated by multiplying the nutrient loads leaving that lake (5,025
kg P and 228,820 kg N) by the fractions of the totals of the nutrient loads
contributed by the McCoy Air Force Base and the Orlando Jetport during the
sampling year (0.139 for P and 0.022 for N).  The Saint Cloud Canal loads
were adjusted accordingly.
    The operators of the Saint Cloud and Kissimmee Highlands wastewater
treatment plants provided monthly effluent samples and corresponding flow
data.  The City of Orlando (McLeod Road Plant), Orange County Southwest,
and the City of Kissimmee did not participate; nutrient loads attributed
to these sources are those reported by McCaffrey (1976).
    A.  Waste Sources:
        1.  Known municipal -

        Name
        Saint Cloud*
        Kissimmee
         Highlands*
        Kissimmee*
                            t
Pop.
Served
6,000
662

12,000

60,000


Treatment
tr. filter
tr. filter

tr. filter

contact
stab.
Mean Flow
(mVd)
3,138.4
424.8

4,542.0**

28,390.6

Receiving
Water
St. Cloud Canal
Unnamed Canal/
Lake Tohopekaliga
West Canal /Lake
Tohopekaliga
Shingle Creek

         McLeod Rd.
         Plant***
        Orange Co.      37,000    P-removal
         S.W.***
        2.  Known industrial - None
17,034.4
Shingle Creek
t Working Paper No. 249.
* Treatment plant questionnaire.
** Estimated at 0.3785 m3/capita/days; includes pretreated industrial waste.
*** McCaffrey, 1976.

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                                     12

    B.  Annual Total Phosphorus Loading - Average Year:

        1.   Inputs -

                                              kg P/          % of
             Source                            yr	          total

             a.  Tributaries (non-point load) -

                Shingle Creek                 113,285         30.4
                Partin Canal                    6,405          1.7
                St. Cloud Canal                 4,325          1.2

             b.  Minor tributaries & immediate
                 drainage (non-point load) -   51,225         13.8

             c0  Known domestic STP's -

                Saint Cloud                     8,040          2.2
                Kissimmee Highlands             1,000          0.3
                Kissimmee                      80,000         21.5
                City of Orlando,
                 McLeod Rd.  Plant      }      1Q3 goo         2? g
                Orange County S.W.     '      iuj,yuu         ^/.y

             d.  Indirect domestic -               700          0.2

             e.  Septic tanks* -                    30        < 0.1

             f.  Known industrial - None

             g.  Direct precipitation** -        3,355          0.9

                           Total              372,265        100.0

        2.   Outputs -

             Lake outlet - South Port Canal     63,410

             Net annual P accumulation - 308,855 kg.
* Estimate based on 100 lakeshore dwellings, see Working Paper No. 175.
** Brezonik and Shannon, 1971.

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                                     13
    C.  Annual Total Nitrogen Loading - Average Year:
        1.  Inputs -
                                              kg N/          % of
            Source                            yr _          total
            a.  Tributaries (non-point load) -
                Shingle Creek                 351,980         21.6
                Parti n Canal                   19,945          1.2
                St. Cloud Canal               223,785         13.7
            b.  Minor tributaries & immediate
                 drainage (non-point load) -  159,155          9.8
            c.  Known domestic STP's -
                Saint Cloud                    23,850          1.5
                Kissimmee Highlands             1,530        < 0.1
                Kissimmee                     260,000         15.9
                City of Orlando,
                 McLeod Rd. Plant       -,
                                                              „ ?
                Orange County S.W.               ,            66. 
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                                 14
E.   Yearly Loads:
        In the following table,  the existing phosphorus  loadings
    are compared to those proposed by Vollenweider (Vollenweider
    and Dillon,  1974).   Note,  however, that Florida lakes  may be
    able to assimilate phosphorus at a somewhat higher level  than
    that suggested by Vollenweider (Shannon and Brezonik,  1972).
        Essentially,  Vollenweider's "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 oligo-
    trophic if morphometry permitted.   A mesotrophic loading  would
    be considered one between  "dangerous" and "permissible".
        Vollenweider's  model may not be applicable to water bodies
    with short hydraulic retention times.
                                 Total Phosphorus       Total  Nitrogen
    	Total   Accumulated    Total    Accumulated
    grams/m2/yr                4.89      4.05         21.4     4.7

    Vollenweider phosphorus loadings
     (g/m2/yr) based  on mean depth and mean
     hydraulic retention time  of Lake Tohopekaliga:
        "Dangerous"  (eutrophic  loading)              0.44
        "Permissible"  (oligotrophic loading)         0.22

-------
                                     15

V.   LITERATURE REVIEWED

    Anonymous, 1972.  Water-level manipulations project--Lake Tohopekaliga
        drawdown, 1971-72 annual progress report.  Fed. Aid in Fish Restor.,
        Dingell-Johnson Proj. No. F-29-1, FL Game & Fresh Water Fish Comm.,
        Tallahassee.

    Federico, Anthony C., and Patrick L. Brezonik, 1975.  A survey of water
        quality in the Kissimmee-Okeechobee watershed.  FL Dept. of Env.
        Reg. Techn. Ser. 1 (8).

    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.

    McCaffrey, Patrick, 1976.  Personal communication,  (point-source
        loading to Shingle Creek; STP nutrient loadings).  FL Dept. of
        Env. Reg., Tallahassee.

    Shannon, Earl E., and Patrick L. Brezonik, 1972.  Relationships between
        lake trophic state and nitrogen and phosphorus loading rates.  Env.
        Sci. & Techn. 6 (8): 719-725.

    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.

-------
VI.  APPENDICES
                                  16
                                   APPENDIX A
                                  LAKE RANKINGS

-------
LAKE DATA TO BE USED IN HANK INGS
LAKE
CODE
1201
1202
1203
1206
1207
1208
1209
1210
1211
1212
121o
1215
1217
1219
1220
1221
122J
1224
1227
1228
1229
1230
1231
1232
123w
123b
1238
1239
LAKE
NAME
ALLIGATOR LAKE
LAKE
LAKE
LAKE
APOPKA
BANANA
CRESCENT
DOCTORS LAKE
LAKE
LAKE
LAKE
LAKE
DORA
EFFIE
GEORGE
GIBSON
GLENAOA LAKE
LAKE
LAKE
LAKE
LAKE
LAKE
LAKE
LAKE
LAKE
LAKE
LAKE
LAKE
LAKE
LAKE
LAKE
LAKE
LAKE
LAKE
LAKE
GRIFFIN
HAINES
HANCOCK
HORSESHOE
HOWELL
ISTOKPOGA
JFSSUP
KISSIMMLE
LULU
MARION
MINNErtAHA
MINNEOLA
MONROE
OKEECHOtjEE
POINSETT
PEEDY
SOUTH
TALQUIN
MEDIAN
TOTAL P
0
0
0
0
0
0
1
0
0
0
0
0
0
0
1
0
0
0
1
0
0
0
0
0
0
0
0
0
.620
.10?
.669
.065
.084
.102
.480
.129
.167
.134
.119
.063
.772
.034
.260
.039
.49?
.034
.490
.044
.038
.018
.188
.063
.085
.033
.074
.085
MEDIAN
1NOHG N
0.260
0.230
0.260
0.130
0.120
0.240
0.410
0.165
0.115
0.165
0.260
0.115
0.195
0.130
0.285
0.120
0.290
0.145
1.06S
0.260
0.080
0.070
0.300
o.i as
0.150
0.330
0.130
0.290
500-
MEAN SEC
474.
484.
482.
473.
465.
4B2.
489.
469.
470.
454.
481.
462.
483.
459.
464.
464.
487.
463.
483.
468.
43t>.
406.
474.
472.
469.
468.
464.
462.
000
176
667
889
555
889
000
308
000
167
333
667
500
000
000
222
000
667
000
833
000
333
555
366
000
500
000
167
MEAN
CMLOSA
67.
46.
208.
10.
27.
59.
261.
35.
19.
27.
66.
26.
97.
12.
54.
6.
76.
24.
276.
29.
8.
3.
14.
14.
6.
34.
23.
9.
733
611
600
211
100
978
433
000
675
667
855
567
900
067
117
594
550
142
566
967
733
333
225
524
500
837
167
483
15-
MIN DO
13.100
8.200
3.600
10.200
10.600
7.400
15.000
11.000
10.200
14.700
6.600
10.600
5.600
11.500
9.000
8.600
7.600
8.800
14.300
7.600
7.700
7.400
10.800
9.800
10.600
10.600
9.000
14.400
MEDIAN
OISS OriTHO P
0.386
0.019
0,293
0.033
0.028
0.022
0.950
0.063
0.069
0.072
0.038
0.014
0. 158
0.023
1.175
0.010
0.288
0.007
1.030
0.016
0.012
0.009
0.128
0.010
0.031
0.008
0.026
0.031

-------
LAKE DATA TO BE USED IN RANKINGS
LAKE
CODE
1240
1241
1242
1243
1216
12*7
1248
1249
1250
12S2
1258
1261
1264
LAKE
LAKE
LAKE
TROUT
LAKE
LAKE
LAKE
LAKE
LAKE
LAKE
LAKE
LAKE
EAST
NAME
THONOTOSASSA
TOHOPEKALIGA
LAKE
HEOHYAKAPKA
YALE
MUNSON
SEMINOLE
LAMNE
TARPON
ELOISE
JESSIE
LAKE TOHOPEKALIGA
PAYNE'S PWAIHIE LAKE (NO
MED UN
TOT4U P
0
0
1
0
0
1
0
?
0
0
0
0
1
.695
.246
.110
.047
.027
.475
.234
.560
.041
.486
.051
.042
.260
MEDIAN
INORG N
0.095
0.200
0.650
0.080
0.160
0.925
0.17S
1.350
0.070
0.170
0.090
0.070
0.140
500-
MEAN SEC
466.167
472.917
472.000
458.667
441.000
486.667
473.833
494.667
400.889
465.333
452.667
440.833
476.000
MEAN
CrlLOHA
37
30
76
7
25
140
102
64
6
70
26
5
88
.700
.633
.967
.767
.367
.317
.000
.900
.867
.233
.300
.167
.200
15-
HIN DO
10.
10.
12.
a.
7.
12.
a.
10.
9.
12.
10.
9.
7.
200
500
900
200
600
200
600
400
000
200
800
400
400
MEDIAN
OISS OWTriO P
0.565
0.152
0.970
0.011
0.014
0.852
0.026
0.117
O.U27
0.339
0.011
0.007
1.210

-------
PERCENT OF LAKES *ITH HIGHER VALUES (NUMBER OF LAKES WITH HIGHER VALUES)
LAKE
CODE
1201
1202
1203
1206
1207
1208
1209
1210
1211
1212
121*
121S
1217
1219
1220
1221
1223
122".
1227
1228
1229
1230
1231
1232
1234
1236
1238
1239
LAKE
NAME
ALLIGATOR LAKE
LAKE
LAKE
LAKE
APOPKA
BANANA
CRESCENT
DOCTORS LAKE
LAKE
LAKE
LAKE
LAKE
DORA
EFFIE
GEORGE
GIBSON
GLENADA LAKE
LAKE
LAKE
LAKE
LAKt
LAKE
LAKE
LAKE
LAKE
LAKE
LAKE
LAKt
LAKE
LAKE
LAKE
LAKE
LAKE
LAKE
LAKE
GRIFFIN
HAINES
HANCOCK
HORSESHOE
HOKELL
ISTOKPOGA
JESSUP
KISSIMMEE
LULU
MARION
MINNEHAHA
MINNEOLA
MONROE
OKEECH08EE
POINSETT
WEEDY
SOUTH
TALOUIN
MEDIAN
TOTAL P
25
50
23
65
60
53
5
45
40
43
4P
70
18
5
0
50
85
100
/5
73
95
45
68
83
( 7)
( 15)
( 2)
( 32)
( 22)
( 13)
( 1)
1 17)
( 28)
( 21)
( 12)
( 23)
( SI
( 31)
1 14)
( 37)
( 10)
( 26)
( 0)
1 20)
( 34)
1 40)
I 30)
( 29)
( 38)
( 18)
( 27)
( 331
15-
MIN 00
10
74
100
48
34
90
0
23
48
3
95
34
98
20
60
69
B3
65
8
83
ra
90
26
S3
34
34
60
5
( 4)
( 29)
{ 40)
( 18)
( 12)
( 35)
I 0)
I 9)
( IB)
( 1)
1 38)
I 12)
( 39)
( 8>
( 23)
( 27)
( 32)
( 26)
( 3)
( 32)
( 31)
( 35)
( 10)
< 21)
< 12)
I 12)
( 23)
( 2)
MEDIAN
DISS ORTHO P
18 I
70 (
23 <
50 (
56 (
68 I
10 (
43 (
40 1
38 (
48 (
78 (
2e <
65 (
3 (
89 (
25 (
99 (
5 (
73 (
80 (
93 (
33 <
89 (
45 (
95 (
56 (
S3 1
7)
28)
9)
20)
22)
27)
4)
17)
16)
15)
19)
31)
11)
26)
1)
35)
10)
39)
2)
29)
321
37)
13)
35)
18)
38)
22)
21)
INOEX
NO
1JO
2811
200
346
341
297
31
256
324
276
273
396
213
<*06
201
477
184
4sS
34
366
517
579
215
368
3-.2
33/
3d6
294

-------
PERCENT OF LAKES rtlTH HIGHER VALUES (NUMBER OF LAKES ulTH HIGHER  VALUES)
LAKE
CODE
1240
12*1
12*2
12*3
12*6
12*7
12*8
12*9
1250
1252
1258
1261
1264
LAKE NAME
LAKE THONOTOSASSA
LAKE TOHOPEKALIGA
TROUT LAKE
LAKE WEOHYAKAPKA
LAKE YALE
LAKE MUNSON
LAKE SEMINOLE
LAKE LAMNE
LAKE TARPON
LAKE ELOISE
LAKE JESSIE
EAST LAKE TOHOPEKALIGA
PAYNE'S PRAIRIE LAKE (NO
MEDIAN
TOTAL V
20 I
33 (
15 (
T5 1
98 (
a (
35 (
0 (
83 (
30 1
73 (
80 (
11 <
8)
13)
6)
30)
39)
3)
1*)
0)
33)
12)
29)
32)
4)
MEDIAN
INORG N
85
*0
8
91
58
5
48
0
98
50
88
98
65
1 3*)
( 16)
( 3)
( 36)
I 23)
( 2)
( 19)
( 0)
( 38)
( 20)
( 35)
( 38)
( 26)
500-
MEAN SEC
58 (
38 <
43 (
83 (
90 (
8 (
35 (
0 (
100 (
63 (
88 I
93 (
25 (
23)
15)
17)
33)
36)
3)
14)
0)
40)
25)
35)
37)
10)
MEAN
CMLOWA
40
48
23
88
63
8
10
20
90
23
60
98
15
1 16)
( 19)
I 9)
I 35)
( 25)
( 3)
( 4)
( 8)
( 36)
( 11)
( 24)
( 39)
( 6)
15- .
HIM DO
48 (
40 (
13 (
74 (
83 (
16 (
69 (
43 (
60 (
16 (
26 I
55 (
90 (
18)
16)
5)
29)
32)
6)
271
17)
23)
6)
101
22)
3b>
MEDIAN
OISS OHTHO P
15 (
30 (
8 (
84 (
75 (
13 1
63 (
35 (
60 (
20 (
84 (
99 (
' 0 (
61
12)
3)
33)
30)
5)
25)
14)
24)
8)
33)
39)
0)
INDEX
NO
26(>
229
110
495
467
56
260
98
491
207
419
523
206

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



RANK  LAKE CODE  LAKE NAME
 a  1261




 3  1239




 4  12*3




 5  1350




 6  1331




 7  1346




 8  1224




 9  1358




10  1319




11  1315




13  1238




13  1233




14  1228




15  1306




16  1334




17  1307




18  1236




19  1311




30  1308




31  1339




22  1202




23  1213




34  1314




35  1340




36  1346




27  1310




38  1341
LAKE MINNEOLA




EAST LAKE TOriOPEKAUGA




LAKE MINNEHAHA




LAKE WEOHYAKAPKA




LAKE TARPON




LAKE ISTOKPOGA




LAKE YALE




LAKE KISS1MMEE




LAKE JESSIE




LAKE HORSESHOE




LAKE HAINES




LAKE SOUTH




LAKE OKEECHOBEE




LAKE MARION




LAKE CRESCENT




LAKE POINSETT




DOCTORS LAKE




LAKE REEDt




LAKE GIBSON




LAKE DORA




LAKE TALQUIN




LAKE APOPKA




GLENADA LAKE




LAKE GRIFFIN




LAKE THONOTOSASSA




LAKE SEMINOLE




LAKE GEORSE




LAKE TOHOPEKALIGA
                                         INDEX NO






                                            579




                                            533




                                            517




                                            495




                                            491




                                            477




                                            467




                                            455




                                            419




                                            406




                                            396




                                            386




                                            368




                                            366




                                            346




                                            343




                                            341




                                            337




                                            3?4




                                            397




                                            394




                                            380




                                            276




                                            373




                                            366




                                            260




                                            256




                                            329

-------
LAKES RANKED 8Y INDEX NOS.




RANK  LAKE CODE  LAKE NAME               INDEX NO






  29  1231       LAKE MONROE                215




  30  1217       LAKE HANCOCK               213




  31  1252       LAKE EL01SE                207




  32  126*       PAYNE'S PRAIRIE LAKE  (HO   206




  33  1220       LAKE HOkfELL                201




  3*  1203       LAKE BANANA                200




  35  1223       LAKE JESSUP                18*




  36  1201       ALLIGATOR LAKE             130




  37  12*2       TROUT LAKE                 110




  38  12*9       LAKE LAWNE                  98




  39  12*7       LAKE MUNSON                 58




  *0  1227       LAKE LULU                   3*




  *1  1209       LAKE EFFIE                  31

-------
     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 ~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

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

-------
                                   TRIBUTARY  FLOW INFORMATION FOR FLORIDA
                                                                                          8/25/75
LAKE CODE 1241     LAKE TOHOPEKALIGA

     TOTAL DRAINAGE AREA OF LAKE(SO KM)    1605.8
          SUB-DRAINAGE
                          JAN
                                  FEB
                                          MAR
                                                  APR
                                                          MAY
                                        NORMALIZED FLOWSl(CMS)
                                          JUN     JUL  *  AUG
            SEP
OCT
                                                                                                          NUV
                                                                                                                  OEC
                                                                                                                         MEAN
1 KIO
-------
                                   TRIBUTARY FLOW INFORMATION FOK i-LOKiUA
                                                                                          a/25/75
LAKE CODE 1241     LAKE TOHOPEKALIGA

     MEAN MONTHLY FLOWS AND DAILY FLOWS(CMS)

TRI6UTARY   MONTH   YEA*    MEAN FLOW  DAY

1241C1
 1241ZZ
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
6
7
8
9
10
11
12
1
2
73
73
73
73
73
73
73
73
73
73
74
74
73
73
73
73
73
73
73
73
73
73
74
74
73
73
73
73
73
73
73
73
73
73
74
74
FLOW  DAY
14.36
17.44
12.23
0.0
0.76
12.12
16.28
4.33
0.0
0.0
0.0
0.0
7.70
5.83
5.80
0.06
0.7
-------
        APPENDIX D





PHYSICAL and CHEMICAL DATA

-------
SrORET KETRIEVAL OATE 75/08/25
                                                                  124101
                                                                 28 16 08.0 081 24 00.0
                                                                 LAKE TOHOPEKALIGA
                                                                 12097   FLORIDA

DATE
FROM
TO
73/03/13

73/09/06

73/11/07


TIME DEPTH
OF
DAY FEET
13 25 0000
13 25 0006
14 20 0000
14 20 0005
09 15 0000
09 15 0006
00010
WATER
TEMP
CENT
25.9
24.7
28.9
28.8
22.8
22.7
                                00300     00077     00094
                                 00      TRANSP   CNDUCTVY
                                         SECCHI   FIELD
                                MG/L     INCHES   M1CROMHO
                                   4.5
                                   5.2
                                   4.6
12

24

28
180
180
173
173
153
150
HEPALES
3
00400
PH

SU
7.60
6.90
7.00
6.90
7.20
7.10

00410
T ALK
CAC03
MG/L
24
28
27
34
20
20
2111202
0010
00610
NH3-N
TOTAL
MG/L
0.150
0.210
0.110
0.100
0.070
0.070
FEET DEPTH
00625
TOT KJEL
N
MG/L
1.700
1.200
2.000
1.600
l.SOO
1.600
00630
N02&N03
N-TOTAL
MG/L
0.070
0.080
0.150
0.170
0.150
0.150
00671
PHOS-OIS
ORTHO
MG/L P
0.361
0.489
0.690
0.650
0.420
0.321
                      00665     32217
  DATE   TIME DEPTH PHOS-TOT  CrtLRPHYL
  FROM    OF                     A
   TO    DAY  FEET   MG/L P     UG/L

73/03/13 13 25 0000    0.448       7.9
         13 25 0006    0.600
73/09/06 14 20 0000    0.770      35.9
         14 20 0005    0.700
73/11/07 09 15 0000    0.538       4.6
         09 15 0006    0.366

-------
STORET RETRIEVAL DATE 75/08/35
                                                                  124102
                                                                 28 13 57.0 081  23
                                                                 LAKE TOHOPEKALIGA
                                                                 12097   FLORIDA
DATE TIME DEPTH
FROM OF
TO DAr FEET
73/03/13 14 05 0000
14 05 0005
73/09/06 14 00 0000
73/11/07 09 30 0000
09 30 0005

DATE TIME DEPTH
FROM OF
TO DAT FECT
73/03/13 14 05 0000
14 05 0005
73/09/06 14 00 0000
73/11/07 09 30 0000
09 30 0005
00010
*ATER
TEMP
CENT
25.6
25.1
29.4
23.1
23.0
00665
PHuS-TOT

MG/L P
0.376
0.346
0.472
0.230
0.246
HEPALtS 2111202
3 0009 FEET DEPTH
00300 00077 00094 00400 00410 00610 00625 00630 00671
DO THANSP CNDUCTVY HH T ALK NH3-N TOT KJEL N02&N03 HHOS-DIS
SECCH1 FIELD CACOJ TOTAL N N-TOTAL ORTMO
MG/L INCHES MICROMHO SU
18 160 10.40
6.9 200 7.70
5.4 36 162 7.00
34 141 7.30
7.2 141 7.20
32217
CriLRPHVL
A
UG/L
28.4

43.1
16.5

MG/L MG/L MG/L MG/L MG/L P
21 0.030 2.600 0.420 0.201
23 0.140 1.200 0.070 0.255
27 O.OBO 1.900 0.090 0.372
17 0.040 1.600 0.03U 0.152
18 0.040 1.600 0.030 0.152










-------
STORE! RETRIEVAL DATE 75/08/25
                                                                  124103
                                                                 28 11 01.0 081  23 37.0
                                                                 LAKE TOHOPEKAL1GA
                                                                 12097   FLORIDA
11EPALES 2111202
3 0008 FEET DEPTH

DATE TIME DEPTH
FROM OF
TO DAY FEET
73/03/13 15 40 0000
15 40 0004
73/09/06 13 55 0000
73/11/07 09 40 0000
09 40 0005

DATE TIME DEPTH
FROM OF
TO DAY FEET
73/03/13 15 40 0000
IS 40 0004
73/09/06 13 55 0000
73/11/07 09 40 0000
09 40 0005
00010
WATER
TEMP
CENT
25.4
25.1
29.5
23.1
23.0
00665
PHOS-TOT

MG/L P
0.179
0.124
0.225
0.230
0.247
00300
DO

MG/L

6.9
6.4

7.2
32217
CHLRPHYL
A
UG/L
66.9

38.1
17.6

00077 00094
TRANSP CNOUCTVY
SECCHI FIELD
INCHES MICROMHO
15 220
180
35 168
36 141
141









00400 00410 00610
PH T ALK NH3-N
CAC03 TOTAL
SU MG/L MG/L
10.50 22 0.090
9.10 26 0.100
8.30 27 0.100
7.30 18 0.050
7.20 19 0.050









00625
TOT KJEL
N
MG/L
2.500
1.500
2.200
1.700
1.300









00630
N02&N03
N-TOTAL
MG/L
0.110
0.100
0.090
0.030
0.060









00671
PHOS-DIS
ORTHO
MG/L P
0.031
0.021
0.119
0.130
0.140










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STORET RETRIEVAL DATE 75/08/25
                                                                  124104
                                                                 28 09 53.0 031 21 25.0
                                                                 LAKE TOHOPEKALIGA
                                                                 12097   KLORIOA
DATE
FROM
TO
7J/OJ/13

73/09/06
73/11/07


DATE
FROM
TO
73/03/13

73/09/06
73/11/07

TIME DEPTH
OF
DAY FEET
16 15 0000
16 15 0005
13 35 0000
10 10 0000
10 10 OOOfo

TIME DEPTH
OF
DAY FEET
16 15 0000
16 15 0005
13 35 0000
10 10 0000
10 10 0006
00010
*ATER
TEMP
CENT
29.0
24.6
29.0
23.1
22.8
00665
PHOS-TOT

MG/L P
0.115
0.106
0.138
0.129
0.231
11EPALES 2111202
3 0009 FEET DEPTH
00300 00077 00094 00400 00410 00610 00625 00630 00671
DO TRANSP CNDUCTVY PH T ALK NH3-N TOT KJEL N02&N03 PHOS-DIS
SECCHI FIELD CAC03 TOTAL N N-TOTAL OKTHO
MG/L INCHES MICROMHO SU
18 200 10.20
8.5 180 8.90
7.8 33 174 8.80
36 142 7.10
7.2 142 7.10
32217
CHLRPHYL
A
UG/L
48.1

40.9
19.6

MG/L MG/L MG/L MG/L MG/L P
25 0.120 2.200 0.140 0.013
26 0.100 1.300 0.090 0.013
26 0.120 2.900 0.100 0.053
19 0.070 1.600 0.030 0.042
20 0.050 1.400 0.030 0.129










-------
       APPENDIX E

TRIBUTARY AND WASTEWATER
  TREATMENT PLANT DATA

-------
STORE! RETRIEVAL DATE 75/08/25
  DATE   TIME DEPTH N02&N03
  FROM    OF
   TO    OAY  FEET
73/03/17
73/04/13
73/04/27
73/05/18
73/06/16
73/07/14
73/08/17
73/09/08
73/09/16
73/10/12
73/11/03
73/12/13
74/01/12
74/01/18
74/02/17
11
14
16
14

11
16
12
09
15
15
12
10
10
08
33
20
30
15

00
35
30
45
30
40
30
30
00
30
                                                                  1241A1
                                                                 28 16 00.0  081  26 00.0
                                                                 SHINGLE  CREEK
                                                                 12057   7.5 KISSIMMEE
                                                                 T/LAKE TOHOPEKALIGA
                                                                 US HWY 17 BRDG
                                                                 llEPALtS             2111204
                                                                 4                   0000  FEET
DEPTH
0630
&N03
OTAL
G/L
0.048
0.029
0.03d
0.022
0.061
0.084
0.066
0.048
0.050
0.052
0.216
0.168
0.016
0.288
0.504
00625
TOT KJEL
N
MG/L
1.540
1.890
3.500
3.780
5.700
1.700
2.400
3.100
1.260
1.250
1.550
0.900
2.200
1.900
1.500
00610
NH3-N
TOTAL
MG/L
0.066
0.095
0.110
0.273
0.750
0.097
0.120
0.075
0.058
0.036
0.064
0.064
0.040
0.160
0.055
00671
PHOS-DIS
ORTHO
MG/L P
0.920
0.018
1.000
1.040
2.500
1.100
1.040
0.805
0.701
0.520
0.540
1.060
0.264
1.300
1.500
00665
PHOS-TOT

MG/L P
0.960
0.030
1.050
1.150
2.500
1.200
1.100
0.890
0.701
0.575
0.590
1.100
0.400
1.450
1.760

-------
STOREF RETRIEVAL DATE 75/08/25
                                                                  1241bl
                                                                 28 17 00.0  081  23 00.0
                                                                 PARTIN CANAL
                                                                 12      7.5 KISSIMMEE
                                                                 T/LAKE TOHOPEKALIGA
                                                                 AT LIGnT DUTY RO BKDG
                                                                 11EPALES             2111204
                                                                 4                   0000 FEET  DEPTH
  DATE   TIME DEPTH N02&N03
  FROM    OF
   TO    DAY  FEET
73/03/17
73/04/07
73/05/13
73/06/17
73/07/07
73/08/05
73/09/08
73/10/12
73/11/03
73/12/08
73/12/15
74/01/12
74/02/17
10
11
09
10
11
09
12
15
11
10
13
11
11
40
00
30
00
50
30
40
CO
00
50
30
00
20
0630
:«.N03
OTAL
iG/L
0.029
0.011
0.010K
0.014
0.012
0.020
0.014
0.010K
0.076
0.016
0.034
C.184
0.036
00b25
TOT KJEL
N
MG/L
4.050
1.150
1.150
2.200
2.200
10.500
2.615
1.550
1.350
2.000
0.9CO
1.300
2.300
00610
NH3-N
TOTAL
MG/L
0.176
0.033
0.030
0.115
0.067
1.160
0.115
0.057
0.040
0.076
0.058
0.028
0.125
00671
PHOS-DIS
ORTHO
MG/L P
0.200
0.061
0.180
0.480
0.350
0.935
0.460
0.010
0.168
0.156
0.790
1.350
0.375
00665
PHOS-10T

Mli/L P
0.270
0.105
0.305
0.700
0.750
1.U50
0.550
0.230
0.220
0.195
0.890
1.500
0.570
 K VALUE KNOWN TO HE
 LESS THAN INDICATED

-------
STORET RETRIEVAL DATE 75/08/25
                                                                  1241C1
                                                                 28 08 30.0  081  21  00.0
                                                                 S PORT CANAL
                                                                 12      7.5 S ST CLOUD
                                                                 T/LAKE TOHOPEKALIGA
                                                                 rtD BROG  NEAR GAGING STATION
                                                                 11EPALES             2111204
                                                                 4                   0000  FEET
DEPTH
  DATE   TIME DEPTH N02&N03
  FROM    OF
   TO    DAY  FEET
73/03/17
73/04/16
73/05/18
73/06/16
73/07/14
73/08/17
73/09/16
73/10/12
73/11/16
73/12/13
74/01/18
74/02/17
12 05
14 15
14 30
10 20
16 15
10 05
15 00
13 30
12 00
10 40
10 00
0630
'&N03
OTAL
IG/L
0.016
0.019
0.022
0.021
0.031
0.010*
0.010K
0.063
0.024
0.088
0.060
0.028
00625
TOT KJEL
N
MG/L
6.000
5.000
2.900
3.900
3.150
2.800
1.400
1.250
2.900
5.200
1.400
1.700
00610
NH3-N
TOTAL
MG/L
0.094
0.220
0.084
0.052
0.078
0.046
0.024
0.037
0.120
0.216
0.060
0.035
00671
PHOS-DIS
ORTHO
MG/L P
0.034
0.026
0.021
0.042
0.012
0.021
0.009
0.057
0.028
0.044
0.035
0.035
00665
PHOS-TOT

MG/L P
0.240
0.165
0.185
0.240
0.130
0.160
0.118
0.135
0.115
0.115
0.110
0.120
 K VALUE KNOWN TO BE
 LESS THAN INDICATED

-------
STORET RETRIEVAL DATE 75/08/25
  DATE   TIME DEPTH N02&N03
  FROM    OF
   TO    DAY  FEET
73/03/17
73/04/07
73/05/13
73/06/17
73/07/07
73/08/05
73/12/08
73/12/15
74/01/12
74/02/17
10 15
12 30
10 00
10 15
11 00
10 00
09 45
14 00
11 15
11 35
                                                                 28 15 00.0 081 20 00.0
                                                                 ST CLOUJ CANAL
                                                                 12      7.5 N ST CLOUD
                                                                 0/LAKE TOHOPEKALIGA
                                                                 300 YDS AbOVE FLORIDA TURNPIKE BRDG 62
                                                                 11EPALES             2111204
                                                                 <»                   0000 FEET  DEPTH
0630
&N03
OTAL
G/L
0.027
0.040
0.031
0.700
0.470
0.010*
0.232
0.010K
0.012
0.012
00625
TOT KJEL
N
MG/L

1.680
0.750
1.680
1.980
0.580
2.000
1.100
0.950
1.300
00610
NH3-N
TOTAL
MG/L
0.080
0.078
0.040
0.017
0.110
0.039
1.010
0.040
0.028
0.030
00671
PHOS-DIS
OKTHO
MG/L P
0.028
0.025
0.033
1.040
2.300
0.035
1.400
0.016
0.030
0.020
00665
PHOS-TOT

MG/L P
0.070
0.060
0.050
1.250
2.500
0.060
1.600
0.057
0.085
0.070
 K VALUE KNOWN TO BE
 LESS THAN INDICATED

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STOKET RETRIEVAL DATE 75/06/25
                                                                  1241DA          TF12410A     P006000
                                                                 28 15 30.0 081 18 30.0
                                                                 ST CLOUD
                                                                 12057   7.5 ST CLOUD N
                                                                 T/LAKE TOHOPEKALIGA
                                                                 ST CLOUD CANAL
                                                                 11EPALES             2141204
                                                                 4                   0000 FEET  DEPTH

DATE TIME DEPTH
FROM OF
TO DAY FEET
73/02/07 07 00
CP(T)-
73/02/07 19 00
73/03/14 07 00
CP < T ) -
73/03/14 19 00
73/04/18 07 00
CP(T)-
73/04/18 19 00
73/05/23 07 00
CP(T)-
73/05/23 19 00
73/06/19 07 00
CP(T)-
73/06/19 19 00
73/07/18 07 00
CP(T>-
73/07/18 19 00
73/08/22 07 00
CP(T)-
73/08/22 19 00
73/09/26 07 00
CP(T)-
73/09/26 19 00
73/10/31 07 00
CP(T>-
73/10/31 19 00
73/12/12 07 00
CP(T)-
73/12/12 19 00
74/01/16 07 00
CPIT)-
74/01/16 19 00
00630
N02&.N03
N-TOTAL
MG/L

6.500


6.800


6.800


9.500


14.400


1.680


6.600


3.900


9.000


9.800


7.100

00625
TOT KJEL
N
MG/L

14.000


16.400


14.000


12.000


9.600


23.500


10.500


10.500


11.000


12.000


22.000

                                          00610     00671     00665     50051     50053
                                         NH3-N    PMOS-DIS  PHOS-TOT    FLOW    CONDUIT
                                         TOTAL     ORTHO                RATE    FLOW-MGD
                                          MG/L     MG/L P    MG/L P   INST MGD  MONTHLY
                                           6.300
                                           4.800
                                           3.950
                                                     4.200
          6.000
                                           6.400     6.700     7.700
                                           4.200     6.800     7.650
                                           9.150     7.450     7.900
                                           3.920     7.100     7.WOO
1.140
                                           9.200     6.700     7.700     1.000
                                           7.800     7.800     9.200     0.760
                                                                                   1.070
                              0.940
                    0.700     0.700
                    0.730     0.710
7.400     8.300     0.690     0.680
                    0.630     0.640
                    0.730     0.700
                                           2.520     4.500     4.950      1.730      1.010
                                                     5.700     b.600     0.950      1.120
6.400     t>.800     0.800     0.810
                              0.740

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STORE! RETRIEVAL DATE 75/08/25
                                                                  1241EA          TF1241EA     P000662
                                                                 28 17 00.0  081  24 30.0
                                                                 KISSIHHEE
                                                                 12      7.5 KISSIMMEE
                                                                 0/LAKE TOHOPEKALIGA
                                                                 LAKE TOHOPEKALIGA
                                                                 11EPALES             2141204
                                                                 4                   0000  FEET   DEPTH
  DATE   TIME DEPTH N02&N03
  FROM    OF
   TO    DAY  FEET

73/02/15 14 00
73/03/08
73/04/16
73/05/10 09 00
73/06/04
73/07/02 15 00
73/08/07 10 00
73/09/06 12 00
73/10/05 09 00
73/11/07 14 30
73/12/07 13 15
74/01/09 11 30
74/02/06
0630
I&N03
OTAL
IG/L
0.030
0.040
0.010K
0.015
0.144
0.010K
0.260
0.024
0.040
0.070
0.170
0.160
0.120
00625
TOT KJEL
N
MG/L
6.900
10.500
9.500
11.500
11.800
8.400
8.300
7.100
6.600
12.000
13.000
9.100
14.000
00610
NH3-N
TOTAL
MG/L
2.500
4.950
2.600
3.000
4.970
2.200
0.600
0.800
0.460
4.500
4.800
3.520
5.100
00671
PHOS-DIS
ORTHO
MG/L P
4.600
5.900
5.600
6.100
6.460

1.680
3.380
3.500
5.300
6.200
6.300
7.350
00665
PHOS-TOT

MG/L P
6.400
6.500
5.800
6.800
7.000
6.100
9. BOO
3.950
3.900
6.500
7.000
7.350
8.300
50051
FLOW
RATE
INST MGD
0.100
0.100
0.101
0.200
0.105
0.115
0.113
0.135
0.150
0.110
0.075
0.100
0.100
50053
CONDUIT
FLOW-MGD
MONTHLY
0.100
0.100
0.095
0.100
0.105
0.115
0.110
0.133
0.150
0.143
0.108
0.100
0.100
 K  VALUE KNOWN  TO BE
 LESS  THAN  INDICATED

-------