U.S. ENVIRONMENTAL PROTECTION AGENCY
NATIONAL EUTROPHICATION SURVEY
WORKING PAPER SERIES
REPORT
ON
LAKE WEOHYAKAPKA
POLK COUNTY
FLORIDA
EPA REGION IV
WORKING PAPER No, 279
CORVALLIS ENVIRONMENTAL RESEARCH LABORATORY - CORVALLIS, OREGON
and
ENVIRONMENTAL MONITORING & SUPPORT LABORATORY - LAS VEGAS, NEVADA
&G.P.O. 699-440
-------
REPORT
ON
^ LAKE WEGHYAKAPKA
^ POLK COUNTY
FLORIDA
J EPA REGION IV
^ WORKING PAPER No, 279
§
o
©
WITH THE COOPERATION OF THE
FUDRIDA DEPARTMENT OF ENVIRONMENTAL REGULATION
AND THE
FLORIDA NATIONAL GUARD
DECEMBER, 1977
-------
CONTENTS
Page
Foreword i i
List of Florida Lakes iv
Lake and Drainage Area Map . v
Sections
I. Conclusions 1
11. Lake and Drainage Basin Characteristics 4
III. Lake Water Quality Summary 5
IV. Nutrient Loadings 9
V. Literature Reviewed 14
VI. Appendices 15
-------
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)],
and water quality monitoring [§106 and §305(b}] activities mandated
by the Federal Water Pollution Control Act Amendments of 1972.
-------
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 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.
-------
IV
NATIONAL EUTROPHICATION SURVEY
STUDY LAKES
STATE OF FLORIDA
LAKE NAME
Alligator
Apopka
Banana
Crescent
Doctors
Dora
East Tohopekaliga
Effie
Eloise
George
Gibson
Glenada
Griffin
Haines
Hancock
Horseshoe
Howell
Istokpoga
Jessie
Jessup
Kissimmee
Lawne
Lulu
Marion
Minnehaha
Minneola
Monroe
Munson
Okeechobee
Poinsett
Reedy
Seminole
Semi nole
South
Talquin
Tarpon
Thonotosassa
Tohopekaliga
Trout
Weohyakapka
Yale
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
Polk
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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WEQHY^A KAPKA
LAKE WEOHYAKAPKA
Tributary Sampling Site
Lake Sampling Site
§ Sewage Treatment Facility
3
'Scale '2 Mi.
-------
LAKE WEOHYAKAPKA
STORE! NO. 1243
CONCLUSIONS
A. Trophic Condition:
Survey data indicate that Lake Weohyakapka is meso-
eutrophic. It ranked fourth in overall trophic quality
when the 41 Florida lakes sampled in 1973 were compared
using a combination of six parameters*. Ten of the
lakes had less median total phosphorus, six had less and
one had the same median orthophosphorus, three had
less and one had the same median inorganic nitrogen, four
had less mean chlorophyll a_, and seven had greater mean
Secchi disc transparency.
Survey limnologists reported the occurrence of emer-
gent aquatic vegetation along the entire shoreline and
noted the humic-brown color of the water (much of the area
surrounding the lake is marsh).
B. Rate-Limiting Nutrient:
Due to an increase in orthophosphorus and a decrease
in inorganic nitrogen during shipment of the sample from
the field to the laboratory, the algal assay results are
not representative of conditions in the lake at the time
of sampling (03/13/75).
The lake data indicate phosphorus limitation in March,
nitrogen limitation at stations 2 and 3 and phosphorus
See Appendix A.
-------
2
limitation at station 1 in September, and nitrogen limitation
at all stations in November.
C. Nutrient Controllability:
1. Point sources--The estimated nutrient contributions of
point sources amounted to 10.8% of the total phosphorus and
2.4% of the total nitrogen inputs to the lake during the samp-
ling year. Indian Lake Estates contributed 9.5% of the phos-
phorus and 0.9% of the nitrogen. The remainder is attributed
to septic tanks along the shoreline.
Although the sampling year loading of 0.12 g/m2 is less
than the oligotrophic rate proposed by Vollenweider (Vollen-
weider and Dillon, 1974; see page 13), the trophic condition
of the lake is indicative of a higher loading rate. The
abundant aquatic macrophytes observed may be utilizing much
of the incoming phosphorus and/or the phosphorus loading
may be underestimated (the nutrient loads from Indian Lake
Estates are estimates, and the nutrient contribution of ground
water is unknown).
2. Non-point sources—It is estimated that non-point sources
accounted for 89.2% of the phosphorus and 97.6% of the nitrogen
to the lake during the sampling year. Tiger Creek contributed
a little more than 33% of the phosphorus and about 53% of the
nitrogen. The ungaged drainage area contributed an estimated
18% of the phosphorus and 29% of the nitrogen inputs.
-------
3
The 1952 U.S.6.S. Lake Weohyakapka quadrangle map indicates
that land use is predominately agricultural. It would appear
that the contribution from non-point sources was a large part
of the total; however, the phosphorus export rate of Tiger Creek
was only 9 kg/km2/yr (see page 12).
-------
II. LAKE AND DRAINAGE BASIN CHARACTERISTICS1"
A. Morphemetry :
1. Surface area: 30.50 kilometers2.
2. Mean Depth: 1.6 meters.
3. Maximum depth: 3.0 meters.
4. Volume: 48.80 x 106 m3.
5. Mean hydraulic retention time: 263 days.
B. Tributary and Outlet:
(See Appendix C for flow data)
1. Tributaries -
Drainage Mean flow
Name area (km2)* (m3/sec)
Tiger Creek 136.8 1.39
Minor tributaries &
immediate drainage - 74.9 0.76
Totals 211.7 2.15
2. Outlet -
Weohyakapka Creek 242.2 2.15
C. Precipitation***:
1. Year of sampling: 150.9 centimeters.
2. Mean annual: 136.7 centimeters.
t Table of metric equivalents—Appendix B.
tt Surface area from 1970-71 Annual Progress Report, FL Game & Fresh Water
Fish Comm. (Anonymous, 1971); depths estimated from soundings reported
in Appendix D.
* 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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III. WATER QUALITY SUMMARY
Lake Weohyakapka was sampled three times in 1973 by means of a
pontoon-equipped Huey helicopter. Each time, samples for physical
and chemical parameters were collected from one or more depths at
three 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 1.5 meters at station 1, 2.1 meters at station 2, and 1.2 meters
at station 3.
The sampling results are presented in full in Appendix D
and are summarized in the following table.
-------
PAriAMETEK
TEMP (C)
DISS OXY (MG/L)
CNOCTVY IMCROMOJ
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/D
CHLRPYL A (UG/L)
SECCHI (METEKS)
A. SUMMARY OF PHYSICAL AND
1ST SAMPLING ( 3/13/73)
3 SITES
CHEMICAL CHARACTERISTICS FOR
STORET COOE 12-+3
LAKE WEOHYAKAPKA
RANGE
25.3 - 27.0
7.7 - 8.5
81. - 90.
7.8 - 9.0
10. - 10.
0.029 - 0.033
0.004 - 0.006
0.020 - 0.070
0.050 - 0.070
0.500 - 0.700
0.080 - 0.130
0.530 - 0.76U
3.3 - b.4
1.0 - 1.3
2NG SAMPLING ( 9/ 5/73)
3 SITtS
3RD SAMPLING (ll/ 7/73)
3 SITES
MEAN
26. 1
8.2
S'f.
fa. 3
10.
•J.031
G.OOs
O.o42
O.ObO
0.5t>0
0.102
0.602
<*.S
1.2
M 6.0 1 AN
25. V
6.3
H2.
B.2
10.
0.031
0.004
0.030
O.ObO
0.5UO
0.090
0.570
4. I
1.2
KANbE
27.6
6.8
72.
6.1
10.
0.041
0.013
0.070
0.080
0.800
0.150
0.880
5.9
1.0
- 27.8
7.2
74.
6.4
10.
- 0.073
- 0.026
- 0.080
- 0.100
- 1.400
- 0.180
- 1.480
- 25.7
1.0
MEAN
27.7
7.0
73.
6.2
10.
0.054
0.017
0.077
0.085
1.050
0.162
1.127
12.8
1.0
MEDIAN
27.7
7.1
74.
6.1
10.
0.051
0.015
0.080
0.080
1.000
0.160
1.075
6.8
1.0
RANGE
23.3
7.6
64.
6.5
10.
0.045
0.011
0.030
0.040
0.700
0.070
0.730
4.8
0.9
- 23.7
a.o
65.
6.7
10.
- 0.053
- 0.015
- 0.040
- 0.050
- 1.000
- 0.080
- 1.030
7.5
1.0
MEAN
23.4
7.8
64.
6.5
10.
0.049
0.012
0.032
0.043
0.783
0.075
0.815
6.0
1.0
MEDIAN
23.4
7.8
64.
6.5
10.
0.049
0.011
0.030
0.040
0.750
0.075
0.785
5.8
1.0
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B. Biological characteristics:
1. Phytoplankton -
Sampl i ng
Date
03/13/73
09/05/73
11/07/73
2. Chlorophyll a^ -
Sampling
Date
03/13/73
09/05/73
11/07/73
Dominant
Genera
1. Microcystis sp.
2. Melosira sp.
3. Dinobryon sp.
4. Synedra sp.
5. Flagellates
Other genera
Total
1. Flagellates
2. Melosira sp.
3. Cyclotella sp_.
4. Spermatozoopsis sp.
5. Oscillatoria sp.
Other genera
Total
1. Melosira sp.
2. Green flagellate
3. Spermatozoopsis sp.
4. Pennate diatoms
5. Lyngbya sp_.
Other genera
Total
Station
Number
1
2
3
1
2
3
1
2
3
Algal Units
per ml
506
434
239
181
145
259
1,764
3,
1,
593
027
821
411
308
1,489
7,649
2,
1,
076
161
273
170
170
886
4,736
Chlorophyll
(yg/1)
4.7
5.4
3.3
5.9
6.8
25.7
4.8
5.8
7.5
-------
8
C. Limiting Nutrient Study—There was an increase in the ortho-
phosphorus and a decrease in the inorganic nitrogen in the assay
sample between the time of collection (03/13/75) and the beginning
of the assay, and the results are not considered representative
of the conditions in the lake at the time of sampling.
The lake data indicate a combination of limiting nutrients,
although it will be noted that stations nearest nutrient point
sources (2 and 3) tended toward nitrogen limitation, while the
station further away (1) tended toward phosphorus limitation.
The following is a tabulation of the mean inorganic nitrogen
to orthophosphorus ratios for each of the stations and sampling
times with the indicated limiting nutrient in parenthesis.
Station 03/13/73 03/05/73 11/07/73
1 52/1 (P) 19/1 (P) 6/1 (N)
2 36/1 (P) 8/1 (N) 13/1 (N-?)
3 23/1 (P) 11/1 (N) 13/1 (N-?)
-------
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 sampled tributaries were
determined by using a modification of a U.S. Geological Survey com-
puter 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 Al and multiplying by the ZZ area in km2.
The operator of the Nalcrest-Fedhaven wastewater treatment plant
provided monthly effluent samples and corresponding flow data. This
plant discharges to the stream outlet below the lake (Redgate, 1975);
however, the data are included in Appendix E. The outlet loads
measured at station B-l (see map, page v) were adjusted accordingly.
* See Working Paper No. 175.
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10
The operator of Indian Lake Estates wastewater treatment plant
did not participate; nutrient loads were estimated at 1.134 kg P
and 3.401 kg N/capita/yr, and flows were estimated at 0.3785 m3/
capita/day.
A. Waste Sources:
1. Known municipal -
Name
Indian Lake
Estates*
Nal crest-
Fed haven**
Pop.
Served
300
3,400
Mean Flow
Treatment (m3/d)
act. sludge 113.6
act. sludge 646.4
Receiving
Water
Lake Weohyakapka
Weohyakapka Creek
2. Known industrial - None
* Anonymous, 1971.
** Treatment plant questionnaire.
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11
B. Annual Total Phosphorus Loading - Average Year:
1 . Inputs -
kg P/ % of
Source r total
a. Tributaries (non-point load) -
Tiger Creek 1,185 33.3
b. Minor tributaries & immediate
drainage (non-point load) 650 18.3
c. Known municipal STP's -
Indian Lake Estates 340 9.5
d. Septic tanks* - 45 1.3
e. Known industrial - None
f. Direct precipitation** - 1.340 37.6
Total 3,560 100.0
2. Outputs -
Lake outlet - Weohyakapka Creek 2,260
3. Net annual P accumulation - 1,300 kg.
* Estimate based on 165 lakeshore dwellings; see Working Paper No. 175.
** Brezonik and Shannon, 1971.
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12
C. Annual Total Nitrogen Loading - Average Year:
1. Inputs -
kg N/ % of
Source yr total
a. Tributaries (non-point load) -
Tiger Creek 62,365 53.3
b. Minor tributaries & immediate
drainage (non-point load) - 34,145 29.2
c. Known municipal STP's -
Indian Lake Estates 1,020 0.9
d. Septic tanks* - 1,760 1.5
e. Known industrial - None
f. Direct precipitation** - 17,690 15.1
Total 116,980 100.0
2. Outputs -
Lake outlet - Weohyakapka Creek 100,050
3. Net annual N accumulation - 16,930 kg.
D. Non-point Nutrient Export by Subdrainage Area:
Tributary kg P/km2/yr kg N/km2/yr
Tiger Creek 9 456
* Estimate based on 165 lakeshore dwellings; see Working Paper No. 175.
** Brezonik and Shannon, 1971.
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13
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 at somewhat higher level than
that suggested by Vollenweider (Shannon and Brezonik, 1972).
Essentially, Vollenweider's "dangerous" is the rate at
which the receiving water would become eutrophic or remain
eutrophic; his "permissible" rate is that which would result
in the receiving water remaining oligotrophic or becoming
oligotrophic if morphometry permitted. A mesotrophic rate
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 0.12 0.04 3.8 0.6
Vollenweider phosphorus loadings
(g/m2/yr) based on estimated mean depth and mean
hydraulic retention time of Lake Weohyakapka:
"Dangerous" (eutrophic loading) 0.30
"Permissible" (oligotrophic loading) 0.15
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14
V. LITERATURE REVIEWED
Anonymous, 1971. Inventory of municipal waste facilities. EPA
Publ. OWP-1, vol. 4, Wash., DC.
Anonymous, 1971. Water quality investigations--1970-71 annual
progress report. Fed. Aid in Fish Restor., Dingell-Johnson
Proj. No. F-21-5, FL Game & Fresh Water Fish Comm., Tallahassee.
Brezonik, Patrick L. and Earl E. Shannon. 1971. Trophic state
of lakes in north central Florida. Publ. No. 13, Water Res.
Research Ctr., U. of FL, Gainesville.
Shannon, Earl E., and Patrick L. Brezonik, 1972. Relationships
between lake trophic state and nitrogen and phosphorus loading
rates. Env. Sci. & Techn. £ (8): 719-725.
Redgate, S. C., 1975. Personal communication (point of discharge
of Nalcrest-Fedhaven wastewater treatment plant). Lake Wales
Utility Co., Lake Wales.
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.
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VI. APPENDICES
15
APPENDIX A
LAKE RANKINGS
-------
LAKE DATA 10 BE USED IN RANKINGS
LA-CE
CODE
1201
1202
1303
1206
1207
1208
1209
1210
1211
1212
121-
1215
1217
1219
1220
1221
1223
1224
1227
1228
1229
1230
1231
1232
1234
1230
1238
1239
LAKE
NAME
ALLIGATOR LAKE
LAKE
LAKE
LAKE
APOPKA
8ANANA
CRESCENT
DOCTORS LAKE
LAKE
LAKE
LAKE
LAKE
DORA
EFFIE
GEORGE
GIBSON
GLENADA LAKE
LAKE
LAKE
LAKE
LAKt
LAKE
LAKE
LAKE
LAKE
LAKE
LAKE
LAKE
LAKE
LAKE
LAKE
LAKC
LAKE
LAKE
LAKE
GRIFFIN
HAINES
HANCOCK
HORSESHOE
HOXELL
ISTOKPOGA
JESSUP
KISS1MMLE
LULU
MARION
MINNEHAHA
"INNEOLA
MONROE
OKEECHObEE
POINSETT
PEEOY
SOUTH
TALOUIN
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
.102
.660
.065
.084
.102
.480
.129
.167
.134
.119
.063
.772
.034
.260
.039
.4*;
.034
.490
.044
.038
.018
.138
.063
.065
.033
.074
.085
MEDIAN
INOrfG 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
0.185
0.150
0.330
0.130
0.290
500-
MEAN SEC
474.000
484. 1 76
482.667
473.889
465.555
482.889
489.000
464.308
470.000
454.167
481.333
462.667
483.500
459.000
464.000
464.222
487.000
463.667
483.000
468.833
43b.OOO
406.333
474.555
472.366
•469.000
468.500
464.000
46?. 167
MEAN
ClLO«iA
87
4o
208
10
27
59
261
35
19
27
66
26
97
12
54
6
It
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-
M1N DO
13.
8.
3.
10.
10.
7.
15.
11.
10.
14.
6.
10.
5.
11.
9.
8.
7.
8.
14.
7.
7.
7.
10.
9.
10.
10.
9.
14.
100
200
600
200
600
400
000
000
200
700
600
600
600
500
000
600
600
800
300
600
700
400
800
800
600
000
000
400
MEDIAN
DISS 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
0.12M
0.010
0.031
0.008
0.028
0.031
-------
LAKE DAT* TO BE USED IN RANKINGS
LAKE
CODE
1240
1241
1242
1243
1246
1247
1248
1249
1250
1252
1258
1261
1264
LAKE
LAKE
LAKE
TROUT
LAKE
LAKE
LAKE
LAKE
LAKE
LAKE
LAKE
LAKE
EAST
NAME
THONOTOSASSA
TOHOPEKALIGA
LAKE
WEOHVAKAPKA
TALE
MUNSON
SEMINOLE
LAriNE
TARPON
ELOISE
JESSIE
LAKE TOHOPEKAtlGA
PAYNE'S PWAIRIE LAKE (NO
MEDIAN
TOTAL P
0
0
1
0
0
1
. 0
?
0
0
0
0
1
.6*5
.246
.110
.047
.027
.475
.234
.560
.041
.486
.051
.042
.260
MEDIAN
INOOG N
0.095
0.200
0.650
0.080
0.160
0.925
0.175
1.350
0.070
0.170
0.090
0.070
0.140
500-
MEAN SEC
466.167
473.917
472.000
458.667
441.000
486.667
473.833
494.667
400.889
465.333
452.667
440.833
476.000
MEAN
CrILOSA
37
30
76
7
25
140
102
84
6
70
26
5
88
.700
.633
.967
.767
.367
.317
.000
.900
.867
.233
.300
.167
.200
15-
MIN DO
10.
10.
12.
8.
7.
12.
8.
10.
9.
12.
10.
9.
7.
200
500
900
200
600
200
600
400
000
200
800
400
400
MEDIAN
OISS OUTHO 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
-------
OF LAKES dITH HIGHER VALUES (NUMBER OF LAKES WITH HIGHER VALUES)
LAKE
CODE
1201
1302
1203
1206
1207
1208
1209
1210
1211
1212
1214
121S
1217
1219
1220
1221
1223
122*
1227
1228
1229
1230
1231
1232
1234
1236
1238
1239
LAKE NAME
ALLIGATOR LAKE
LAKE APODKA
LAKE BANANA
LAKE CRESCENT
DOCTORS LAKE
LAKE DOHA
LAKE EFFIE.
LAKE GEORGE
LAKE GIBSON
GLENAOA LAKE
LAKE GRIFFIN
LAKE HAINES
LAKE HANCOCK
LAKt HORSESHOE
LAKE HOWELL
LAKE ISTOKPOGA
LAKE JESSUP
LAKt KISSIMMEE
LAKE LULU
LAKE MARION
LAKt MINNEHAriA
LAKE MINNEOLA
LAKE MONROE
LAKE OKEECHOBEE
LAKE POINSETT
LAKE KEED1'
LAKE SOUTH
LAKE TALOUIN
MEDIAN
TOTAL P
25
50
23
65
60
53
5
45
40
43
4P
70
18
93
11
as
28
90
3
78
as
100
38
68
58
95
63
55
( 10)
( 20)
( 9)
< 26)
( 24)
< 21)
( 21
( 18)
( 16)
< 17)
( 19)
( 28)
( 7)
( 37)
( 4)
( 34)
( 11)
( 361
C 1)
( 31)
( 35)
I 40)
< 15)
( 27)
( 23)
( 36)
( 25)
( 22)
MEDIAN
INO^G N
29 (
38 (
29 (
70 (
76 (
35 (
10 (
54 (
81 (
54 (
29 (
81 (
43 (
10 (
23 I
76 (
IK (
63 (
3 (
29 <
91 (
98 <
15 (
45 (
60 (
13 (
70 <
20 (
10)
15)
10)
27)
301
14)
4)
21)
32)
21)
10)
32)
17)
27)
9)
301
7)
25)
1)
10)
36)
38)
6)
1H>
24)
5)
27)
8)
SCO-
MEAN SEC
30 <
10 (
20 (
33 (
60 (
18 (
3 (
48 (
45 (
85 (
23 <
75 (
13 (
aO (
69 (
65 (
5 (
73 (
15 (
53 <
95 (
98 (
28 (
40 (
50 (
55 (
69 (
78 (
12)
4)
8)
13)
24)
7)
1)
19)
19)
34)
9)
30)
5)
32)
271
26)
2)
29)
6)
21)
38)
J9)
111
16)
20)
22)
27)
31)
MEAN
CHLORA
18 I
38 (
5 (
80 I
55 (
33 (
3 (
43 (
70 <
53 <
30 I
58 <
13 I
78 (
35 (
93 (
25 (
OS (
0 1
bO (
85 (
100 (
/5 (
73 (
95 (
45 (
68 (
H3 I
71
15)
2)
32)
22)
13)
1)
17)
28)
21)
12)
23)
5)
31)
14)
371
10)
26)
0)
20)
34)
40)
30)
29)
38)
161
271
33)
15-
MIN 00
10
74
100
48
34
90
0
23
48
3
95
34
98
20
60
69
83
65
8
83
78
90
26
53
34
34
60
5
( 4)
( 291
( 40)
( 18)
( 12)
( 35)
I 0)
I 9)
( IB)
I 1)
I 38)
I 12)
( 39)
( 8)
I 23)
( 27)
( 32)
< 26)
( 3)
( 32)
( 31)
< 35)
( 10)
( 21)
I 1
-------
PERCENT OF LAKES IIITH HIGHER VALUES (NUMBER OK LAKES *ITH HIGHER VALUES)
LAKE
CODE
1340
1241
1343
1243
1246
1247
1248
1249
1250
1252
1258
1261
1260
LAKE NAME
LAKE THONOTOSASSA
LAKE TOHOPEKALIGA
TROUT LAKE
LAKE HEOHYAKAPKA
LAKE YALE
LAKE MUNSON
LAKE SEMINOLE
LAKE LAWNE
LAKE TARPON
LAKE ELOISE
LAKE JESSIE
EAST LAKE TOHOPEKALIGA
PAYNE'S PRAIRIE LAKE (^0
MEDIAN
TOTAL P
30
33
15
75
9fi
B
35
0
83
30
73
60
11
( 8)
< 13)
( 6)
< 30)
I 39)
( 3)
( 14)
< 0)
( 33)
( 12)
( 29)
( 321
( 4)
MEDIAN
INOSG N
85
40
8
91
58
5
48
0
98
50
88
98
65
1 34)
( 16)
( 3)
( 36)
( 23)
( 2)
( 19)
( 0)
I 38)
( 20)
( 35)
I 38)
( 26)
500-
MEAN SEC
58 (
38 (
43 (
S3 (
90 I
8 <
35 (
0 (
100 C
63 (
88 (
93 (
25 (
23)
15)
17)
33)
36)
3)
14)
0)
40)
25)
351
37)
10)
MEAN
CHLOKA
40
48
23
•da
63
8
10
£0
90
28
60
98
15
( 16)
I 19)
1 9)
! 3S)
< 25)
( 3)
( 4)
I 8)
( 36)
1 11)
I 24)
1 39)
I 6)
IS- .
MIN 00
48
40
13
74
83
16
69
43
60
16
26
55
90
( 18)
( 16)
< SI
( 29)
( 32)
I 6)
( 27)
( 17)
1 23)
( 6)
I 10)
( 32)
( 35)
MEDIAN
OISS OHTriO P
15
30
8
84
75
13
63
35
60
20
34
99
0
( 6)
( 12)
I 3)
( 33)
( 30)
I 5)
( 25)
( 14)
( 34)
< 8)
( 33)
< 39)
( 0)
INDEX
NO
266
229
110
495
467
58
260
*B
4*1
207
4H
523
206
-------
LAKES RANKED BY INDEX NOS.
RANK LAKE CODE LAKE NAME INDEX NO
i 1830 LAKE MINNEOLA 579
2 1261 EAST LAKE TOHOPEKALIGA 523
3 1229 LAKE M1NNEHAHA 517
4 1243 LAKE WEOHYAKAPK.A 495
5 1250 LAKE TARPON 491
6 1221 LAKE ISTOKPOGA 477
7 1246 LAKE YALE 467
8 1224 LAKE KISSIMMEE 455
9 1258 LAKE JESSIE 419
10 1219 LAKE HORSESHOE 406
11 1215 LAKE HAINES 396
12 1238 LAKE SOUTH 386
13 1232 LAKE OKEECHOBEE 368
14 122tt LAKE MARION 366
15 1206 LAKE CRESCENT 346
16 1234 LAKE POINSETT 342
17 1207 DOCTORS LAKE 341
18 1236 LAKE REEDt 337
19 1211 LAKE GIBSON 3?4
20 1208 LAKE DORA 297
21 1239 LAKE TALOUIN 294
22 1202 LAKE APOPKA 280
23 1212 GLENAOA LAKE 276
24 1214 LAKE GRIFFIN 273
25 1240 LAKE THONOTOSASSA 266
26 1248 LAKE SEMINOLE 260
27 1210 LAKE GEORGE 256
28 1241 LAKE TOHOPEKALIGA 229
-------
LAKES RANKED at INDEX NOS.
RANK LAKE CODE LAKE NAME INDEX NO
39 1331 LAKE MONROE 315
30 1317 LAKE HANCOCK 313
31 1353 LAKE ELOISE 307
33 136* PAYNE'S PRAIRIE LAKE (NO 306
33 1330 LAKE HOMELL 301
34 1303 LAKE BANANA 300
35 1333 LAKE JESSUP IB*
36 1301 ALLIGATOR LAKE 130
37 1343 TROUT LAKE 110
38 1349 LAKE LAWNE 98
39 1347 LAKE MUN50N 58
<«0 1337 LAKE LULU 34
41 1309 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 = 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 1243
LAKE WEOHYAKAPKA
TOTAL DRAINAGE AREA OF LAKE(SO KM)
242.2
SUB-DRAINAGE
TRIBUTARY AREA(SQ KM)
1243A1
124381
1243ZZ
136.8
242.2
74.9
JAN
1.31
1.99
0.72
FEB
1.39
1.96
0.76
MAR
1.40
2.02
0.76
APR
1.16
1.83
0.63
TOTAL DRAINAGE AREA OF LAKE =
SUM OF SUB-DRAINAGE AREAS =
MEAN MONTHLY FLOWS AND DAILY FLOWS(CMS)
TRIBUTARY MONTH YEAR MEAN FLOW DAY
1243A1
1243B1
1243Z2
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
0.99
1.02
0.57
0.91
0.99
0.79
0.91
1.22
1.19
0.76
0.66
0.34
1.53
1.59
1.25
0.91
1.36
1.73
2.49
2.41
1.84
1.50
1.36
1.08
0.54
0.57
0.31
0.51
0.54
0.42
0.48
0.65
0.65
0.42
0.37
0.20
18
13
17
14
13
17
14
12
16
14
17
14
17
14
14
23
21
19
9
13
10
9
27
3
18
13
17
14
13
17
14
12
16
14
17
14
MAY
1.06
1.25
0.58
242.2
211.6
FLOW DAY
1.02
1.13
0.59
0.85
1.08
0.76
0.99
1.33
1.19
0.74
0.65
0.34
1.44
1.70
1.33
0.76
1.50
1.61
2.55
2.49
1.95
1.53
1.25
1.25
0.57
0.59
0.34
0.45
0.57
0.40
0.54
0.71
0.62
0.40
0.37
0.17
17
14
14
23
21
19
9
13
10
9
27
3
18
13
17
14
13
17
14
12
16
14
17
14
17
14
14
23
21
19
9
13
10
9
27
3
NORMALIZED FLOWS(CMS)
JUN JUL AUG
1.35
1.33
0.74
1.29
1.99
0.70
1.80
2.27
0.99
SEP
1.67
3.00
0.91
OCT
1.69
3.34
0.93
NOV
1.38
2.60
0.76
DEC
1.24
2.16
0.68
MEAN
1.39
2.15
0.76
SUMMARY
TOTAL FLOW IN =
TOTAL FLOW OUT =
25.88
25.75
FLOW DAY
0.93
1.10
0.62
0.82
1.08
0.71
0.93
1.27
1.27
0.79
0.59
0.45
1.59
1.73
1.30
0.79
1.47
1.67
2.63
2.58
1.81
1.44
1.33
1.05
0.51
0.59
0.34
0.45
0.59
0.40
0.51
0.68
0.68
0.42
0.34
0.25
FLOW
-------
APPENDIX D
PHYSICAL and CHEMICAL DATA
-------
STORE! RETRIEVAL DATE 75/06/25
124301
27 48 08.0 081 25 53.0
LAKE WEOHYAKAPKA
12105 FLORIDA
11EPALES 2111202
DATE TIME DEPTH
FROM OF
TO DAY FEET
73/03/13 16 40 0000
16 40 0005
73/09/05 10 30 0000
10 30 0005
73/11/07 09 55 0000
09 55 0001
09 55 0004
DATE TIME DEPTH
FROM OF
TO DAY FEET
73/03/13 16 40 0000
16 40 0005
73/09/05 10 30 0000
73/11/07 09 55 0000
09 55 0004
00010
WATER
TEMP
CENT
27.0
25.3
27.7
27.6
23.7
23.7
23.6
00665
PHOS-TOT
MG/L P
0.031
0.033
0.073
0.049
0.045
00300
DO
MG/L
7.7
7.0
8.0
7.8
32217
CHLRPHYL
A
UG/L
4.7
5.9
4. B
00077 00094
TRANSP CNDUCTVY
SECCHI FIELD
INCHES MICROMHO
48 82
90
40 74
74
40 64
64
65
3 0007
00400 00410 00610
PH T ALK NH3-N
CAC03 TOTAL
SU MG/L MG/L
9.00 10K 0.070
8.40 10K 0.060
6.10 10K 0.100
6.70 10K 0.050
6.50 10K 0.040
FEET DEPTH
00625
TOT KJEL
N
MG/L
0.700
0.500
1.400
0.800
0.700
00630
N02&N03
N-TOTAL
MG/L
0.060
0.070
0.080
0.030
0.030
00671
PHOS-DIS
ORTHO
MG/L P
0.006
0.004
0.013
0.015
0.011
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
STORE! RETRIEVAL DATE 75/06/25
124302
27 49 15.0 081 24 55.0
LAKE WEOHYAKAPKA
12105 FLORIDA
DATE TIME DEPTH
FROM OF
TO DAY FEET
73/03/13 16 50 0000
16 50 0005
73/09/05 10 55 0000
10 55 0007
73/11/07 09 43 0000
09 43 0001
09 43 0004
DATE TIME DEPTH
FROM OF
TO DAY FEET
73/03/13 16 50 0000
16 50 0005
73/09/05 10 55 0000
10 55 0007
73/11/07 09 43 0000
09 43 0004
00010
WATER
TEMP
CENT
25.9
25.8
27.8
27.7
23.3
23.3
23.3
00665
PHOS-TOT
MG/L P
0.033
0.031
0.047
0.055
0.049
0.049
00300
DO
MG/L
8.5
7.2
6.8
8.0
7.8
32217
CHLRPHYL
A
UG/L
5.4
6.6
5.8
00077 00094
TRANSP CNDUCTVY
SECCHI FIELD
INCHES MICROMHO
40 85
81
40 72
73
38 64
64
64
11EPALES 2111202
3 0006 FEET DEPTH
00400 00410 00610 00625 00630
PH T ALK NH3-N
CAC03 TOTAL
SU MG/L MG/L
8.20 10K 0.060
8.20 10K 0.050
6.10 10K 0.080
6.10 10K 0.080
6. SO 10K 0.040
6.60 10K 0.040
TOT KJEL
N
MG/L
0.600
0.500
1.000
0.800
0.800
0.700
N02&N03
N-TOTAL
MG/L
0.020
0.030
0.080
0.080
0.030
0.030
00671
PHOS-DIS
ORTHO
MG/L P
0.005
0.004
0.016
0.026
0.011
0.011
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
STORE! RETRIEVAL DATE 75/Ott/25
124303
27 50 32.0 081 24 20.0
LAKE WEOHYAKAPKA
12105 FLORIDA
DATE TIME DEPTH
FROM OF
TO DAY FEET
73/03/13 17 15 0000
73/09/05 11 15 0000
73/11/07 09 30 0000
09 30 0001
09 30 0004
DATE TIME DEPTH
FROM OF
TO DAY FEET
73/03/13 17 15 0000
73/09/05 11 15 0000
73/11/07 09 30 0000
09 30 0004
00010
WATER
TEMP
CENT
26.4
27.8
23.4
23.4
23.3
00665
PHOS-TOT
MG/L P
0.029
0.041
0.053
0.051
00300
DO
MG/L
8.3
7.2
7.6
7.6
32217
CHLRPHYL
A
UG/L
3.3
25.7
7.5
00077 00094
TRANSP CNDUCTVY
SECCHI FIELD
INCHES MICROMHO
50
39
37
81
74
65
65
65
11EPALES
3
00400
PH
SU
7.80
6.40
6.50
00410
T ALK
CAC03
MG/L
10K
10K
10K
2111202
0004 FEET DEPTH
00610
NH3-N
TOTAL
MG/L
0.060
0.080
0.050
00625
TOT KJEL
N
MG/L
0.500
1.000
1.000
00630
N02&N03
N-TOTAL
MG/L
0.030
0.070
0.030
00671
PHOS-DIS
ORTHO
MG/L P
0.004
0.014
0.012
6.50
10K
0.040
0.700
0.040
0.012
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
APPENDIX E
TRIBUTARY AND WASTEWATER
TREATMENT PLANT DATA
-------
STORE! RETRIEVAL DATE 75/08/25
DATE TIME DEPTH
FROM OF
TO DAY FEET
73/03/18
73/04/13
73/05/17
73/06/14
73/07/13
73/08/17
73/09/14
73/10/12
73/11/16
73/12/14
74/01/17
74/02/14
15 20
11 30
11 00
11 00
10 25
11 05
11 00
11 05
11 25
13 15
12 50
13 05
1243A1
27 48 30.0 081 26 30.0
TIGER CREEK
12069 7.5 LK WEOMYAKAP
I/LAKE WEOHYAKAPKA
Rl> BROG NEAR TIGER CREEK HAMMOCK
11EPALES 2111204
4 0000 FEET DEPTH
0630
!&N03
OTflL
IG/L
0.520
0.220
0.490
0.500
0.378
0.380
0.126
0.480
0.672
0.850
0.730
0.880
00625
TOT KJEL
N
MG/L
2.200
0.980
3.700
0.440
0.360
0.520
0.580
0.700
0.300
0.300
0.200
0.300
00610
NH3-N
TOTAL
MG/L
0.054
0.044
0.530
0.031
0.021
0.031
0.033
0.016
0.032
0.016
0.016
0.015
00671
PHOS-DIS
ORTHO
MG/L P
0.019
0.016
0.017
0.017
0.023
0.025
0.018
0.022
0.010
0.012
0.015
0.020
00665
PHOS-TOT
MG/L P
0.045
0.030
0.025
0.027
0.030
0.030
0.035
0.025
0.018
0.015
0.020
0.020
-------
STORET RETRIEVAL DATE 75/06/35
1243B1
27 52 30.0 081 24 00.0
WEOHYAKAPKA CREEK
12 7.5 LK WEOHYAKAP
0/LAKE WEOHYAKAPKA
ST HWY 60 BR06
11EPALES 2111204
4 0000 FEET
DEPTH
DATE TIME DEPTH N02&N03
FROM OF
TO DAY FEET
73/03/17
73/04/14
73/05/14
73/06/23
73/07/21
73/08/19
73/09/09
73/10/13
73/11/10
73/12/09
74/01/27
74/02/03
14 15
14 00
14 00
14 00
14 30
14 00
14 30
13 00
11 00
09 00
15 30
09 00
0630
I&N03
OTAL
IG/L
0.04t>
0.033
0.048
0.028
0.029
0.028
0.034
0.060
0.056
0.080
0.032
0.044
00625
TOT KJEL
N
MG/L
0.840
0.820
0.880
0.700
0.660
0.850
1.760
4.650
4.000
1.300
0.500
0.500
00610
NH3-N
TOTAL
MG/L
0.060
0.036
0.105
0.034
0.037
0.095
0.100
O.?31
0.520
0.076
0.032
0.045
00671
PHOS-DIS
ORTHO
MG/L P
0.018
0.021
0.016
0.023
0.013
0.033
0.024
0.025
0.024
0.032
0.024
0.040
00665
PHOS-TOT
MG/L P
0.040
0.035
0.050
0.045
0.040
0.050
0.045
0.045
0.035
0.070
0.050
0.070
-------
STORE! RETRIEVAL DATE 75/08/25
1243BA TF1243BA P003000
27 52 00.0 081 24 00.0
NALCREST/FEOHAVEN
12069 7.5 LK WEOPHYAKA
T/LAKE WEOPHYAKAPKA
WEOPHYAKAPKA CREEK
HEP ALES 2141204
4 0000 FEET DEPTH
DATE
FROM
TO
73/02/20
73/03/20
73/04/20
73/05/21
73/06/21
73/07/19
73/08/20
73/09/21
73/10/19
73/11/21
73/12/26
74/01/21
74/02/22
00630
TIME DEPTH N02&N03
OF N-TOTAL
DAY FEET
08
09
08
09
09
09
09
09
09
oa
08
09
09
15
00
30
30
30
30
30
30
30
30
30
45
20
MG/L
5.400
0.055
0.450
4.950
5.000
8.500
14.100
7.300
11.400
8.300
17.200
5.880
2.080
00625
TOT KJEL
N
MG/L
1.
18.
9.
0.
0.
1.
0.
0.
0.
0.
2.
1.
250
000
600
600
780
900
950
500K
750
100K
000
OOOK
00610 00671 00665
NH3-N PHOS-DIS PHOS-TOT
TOTAL ORTHO
MG/L
0.360
8.100
0.720
0.290
0.230
0.168
0.021
0.086
0.095
0.040K
0.440
0.130
MG/L P
5.460
1.400
2.700
4.600
4.100
3.570
4.720
3.500
4.200
4.300
4.300
5.000
6.100
50051 50053
FLOW CONDUIT
RATE FLOW-MOD
MG/L P INST MOD MONTHLY
b
1
2
4
4
3
4
3
4
4
4
5
6
.730
.500
.900
.600
.100
.600
.850
.800
.200
.400
.400
.250
.300
0.190
0.180
0.170
0.170
0.170
0.160
0.160
0.150
0.160
0.170
0.160
0.180
0.180
0.200
0.190
0.180
0.170
0.160
0.160
0.160
0.160
0.150
0.170
0.160
0.180
0.180
K VALUE KNOWN TO BE
LESS THAN INDICATED
------- |