U.S. ENVIRONMENTAL PROTECTION AGENCY
NATIONAL EUTROPHICATION SURVEY
WORKING PAPER SERIES
REPORT
ON
REEDY LAKE
POLK COUNT/
FLORIDA
EPA REGION IV
WORKING PAPER No, 272
CORVALLIS ENVIRONMENTAL RESEARCH LABORATORY - CORVALLIS, OREGON
and
ENVIRONMENTAL MONITORING & SUPPORT LABORATORY - LAS VEGAS, NEVADA
•&G.P.O. 699-440
-------
REPORT
ON
REEDY LAKE
POLK COUNTY
FLORIDA
EPA REGION IV
WORKING PAPER No, 272
WITH THE COOPERATION OF THE
FLORIDA DEPARTMENT OF ENVIRONMENTAL REGULATION
AND THE
FLORIDA NATIONAL GUARD
DECEMBER. 1977
-------
CONTENTS
Page
Foreword i i
List of Florida Study Lakes iv
Lake and Drainage Area Map v
Sections
I. Conclusions 1
II. Lake and Drainage Basin Characteristics 3
III. Lake Water Quality Surimary 4
IV. Nutrient Loadings g
V. Literature Reviewed ' 14
VI. Appendices 15
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FOREWORD
The National Eutrophication Survey was initiated in 1972 in
response to an Administration commitment to investigate the nation-
wide threat of accelerated eutrophication to 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
V
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)3, 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.
-------
m
Beyond the single lake analysis, broader based correlations
between nutrient concentrations (and loading) and trophic condi-
tion are being made to advance the rationale and data base for
refinement of nutrient water quality criteria for the Nation's
fresh water lakes. Likewise, multivariate evaluations for the
relationships between land use, nutrient export, and trophic
condition, by lake class or use, are being developed to assist
in the formulation of planning guidelines and policies by EPA
and to augment plans implementation by the states.
ACKNOWLEDGMENT
The staff of the Notional 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
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
Howel1
Istokpoga
Jessie
Jessup
Kissimmse
Lawne
Lulu
Marion
Ninnehaha
Minneola
Monroe
Munson
Okeechobee
Poinsett
Rep.dy
Seminole
Seminole
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
Folk
Serai nole
Orange, Semincle
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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<8> Tributary. Sampling Site
X Lake Sampling Site
1 Sewage Treatment Facility
9 1/2 ] 11/2 Km.
Mi.
Scale
2/44—
8f32'
I
81°30'
81° 28'
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REEDY LAKE
STORE! NO. 1236
I. CONCLUSIONS
A. Trophic Condition:
Survey data indicate that Reedy Lake is eutrophic. It
ranked eighteenth in overall trophic quality when the 41
Florida lakes sampled in 1973 were compared using a combina-
tion of six parameters*. Two lakes had less median total
phosphorus, two had less median dissolved phosphorus, 35
had less median inorganic nitrogen, 22 had less mean chloro-
phyll a_, and 18 had greater mean Secchi disc transparency.
Depression of dissolved oxygen with depth occurred at sta-
tion 2 in March.
Survey limnologists noted heavy algal blooms and rooted
vegetation during sampling. High phytoplankton counts (see
page 6) further indicate the trophic condition of this lake.
B. Rate-Limiting Nutrient:
The results of the algal assay indicate that primary
productivity was limited by phosphorus at the time the sam-
ple was taken (03/12/73). The lake data indicate phosphorus
limitation at all sampling stations and times, except for sta-
tion 2 in November.
* See Appendix A.
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C. Nutrient Controllability:
It is estimated that point sources contributed 4.5% of the
total phosphorus input to Reedy Lake during the sampling year; and,
based on estimates provided by the operator (page 9 ), the Ben
Hill Griffin Co. citrus processing plant contributed 0.4% of the
total load. However, Central Subdistrict personnel of the Flor-
ida Department of Environmental Regulation indicate the operator's
estimates are too low by at least a factor of 10 and that the
much-greater quantities of nutrients supplied by the plant in past
years are still affecting the quality of the lake (Stuart, 1976).
/
Therefore, it is probable that an assessment of nutrient controlla-
bility on the basis of the Survey data would be too conservative, and
a need for a more-intensive study of the impact of point-source
nutrients on Reedy Lake is indicated.
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II. LAKE AND DRAINAGE BASIN CHARACTERISTICS'^
A. Morphometry"^:
1. Surface area: 14.11 kilometers2.
2. Mean depth: 3.3 meters.
3. Maximum depth: 4.3 meters.
4. Volume: 46.563 x 106 m3.
5. Mean hydraulic retention time: 1.5 years.
B. Tributary and Outlet:
(See Appendix C for flow data)
1. Tributaries -
Drainage Mean flow
Name area (km2)* (m3/sec)*
Unnamed Creek B-l 3.0 0.18
Minor tributaries &
immediate drainage - 140.6 0.82
Totals 143.6 1.00
2. Outlet -
Reedy Creek 157.7** 1.00
C. Precipitation***:
1. Year of sampling: 150.9 centimeters.
2. Mean annual: 136.7 centimeters.
t Table of metric conversions—Appendix B.
tt No bathymetric maps available. Surface area from FL Game & Fresh
Water Fish Comm. (Anonymous, 1972); 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. LAKE WATER QUALITY SUMMARY
Reedy Lake was sampled three times in 1973 by means of a pontoon-
equipped Huey helicopter. The first and third times, samples were col-
lected from two or more depths at stations 1, 2, and 3 (see map, page v).
The second time, samples were collected from two depths at sites 4 and 5.
During each visit, a single depth-integrated (near bottom to surface) sample
was composited from the stations for phytoplankton identification and enu-
meration; and during the first visit a single 18.9-liter depth-integrated
sample was composited for algal assays. Also each time, a depth-integra-
ted sample was collected from each of the stations for chlorophyll ^analy-
sis. The maximum depths sampled were 2.4 meters at station 1, 3.0 meters
at station 2, 2.1 meters at station 3, 3.0 meters at station 4, and 3.0
meters at station 5.
The sampling results are presented in full in Appendix D 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)
KJEL N (MG/L)
INORG N (MG/L)
TOTAL N (MG/L)
CHLRPYL A (UG/L)
SECCHI (METERS)
A. SUMMARY OF PHYSICAL
1st Sampling (03/12/73)
3 Sites
RANGE MEAN MEDIAN
22.3 - 27.8 24.8 24.6
4.4 - 10.5 8.7 9.7
220. - 245. 234. 235.
8.3 - 9.5 9.2 9.3
47. - 64. 55. 57.
0.021 - 0.059 0.045 0.044
0.005 - 0.008 0.007 0.007
0.200 - 0.340 0.286 0.300
0.450 - 0.900 0.545 0.495
1.900 - 2.500 2.125 2.100
0.750 - 1.100 0.831 0.790
2.160 - 2.700 2.411 2.400
20.8 - 33.1 29.0 33.0
0.7 - 0.8 0.7 0.8
AND CHEMICAL CHARACTERISTICS FOR LAKE REEDY
STORET CODE 1236
MEAN
28.5
7.1
220.
7.5
53.
MEDIAN
28.5
7.2
220.
7.4
53.
2nd Sampling (09/05/73)
2 Sites
RANGE
28.2 - 28.6
6.6 - 7.6
218. - 221.
7.2 - 8.0
50. - 55.
0.020 - 0.045 0.030 0.028
0.007 - 0.025 0.012 0.009
0.140 - 0.170 0.157 0.160
0.120 - 0.180 0.145 0.140
1.400 - 1.900 1.625 1.600
0.260 - 0.350 0.302 0.300
1.540 - 2.070 1.782 1.760
50.3 - 53.2 51.7 51.7
0.7 - 0.8 0.7 0.7
3rd Sampling (11/07/73)
3 Sites
RANGE MEAN MEDIAN
23.3 - 23.8 23.5 23.5
7.6 - 7.8 7.8 7.8
191. - 193. 192. 192.
7.8 - 8.2 8.0 8.0
44. - 48. 46. 46.
0.027 - 0.032 0.029 0.029
0.013 - 0.015 0.014 0.015
0:070 - 0.100 0.085 0.080
0.070 - 0.090 0.083 0.085
1.400 - 1.600 1.533 1.550
0.140 - 0.190 0.168 0.165
1.480 - 1.700 1.618 1.630
28.5 - 31.2 29.4 28.6
0.9 - 0.9 0.9 0.9
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B. Biological characteristics:
1. Phytoplankton* -
Sampling
Date
09/05/73
11/07/73
Dominant
Genera
1. Blue-green filaments
2. Anabaena sp.
3. Lyngbya sp.
4. Navicula sp.
5. Chroococcus sp.
Other genera
Total
1. Blue-green filaments
2. Anabaena sp.
3. Lyngbya sp.
4. Aphanothece sp.
5. Chroocuccus sp.
Other genera
Total
Algal Units
per ml
378,070
22,330
19,827
9,047
1,540
4,232
435,046
656,122
14,734
14,215
2,774
2,600
8,492
698,937
The March phytoplankton sample was lost in shipment.
-------
2. Chlorophyll a -
Sampling
Date
03/12/73
09/05/73
11/07/73
Station
Number
1
2
3
4
5
1
2
3
4
5
1
2
3
4
5
Chlorophyll a
(ug/D
33.1
33.0
20.8
_
-
_
-
-
53.2
50.3
31.2
28.5
28.6
-
-
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/1-dry wt.)
Control
0.050 P
0.050 P + 1.0 N
1.0 N
2. Discussion -
cornutum, indicates that the potential primary productivity
of Reedy Lake was moderate at the time the sample was col-
lected (03/12/73). Also, the increased yields with increased
0.012
0.062
0.062
0.012
eld of the
0.630
0.630
1.630
1.630
assay alga, Selenastrum
1.3
14.1
21.7
1.6
capri-
-------
8
levels of orthophosphorus indicate the lake was phosphorus
limited at that time (note the lack of yield response when
only nitrogen was added).
The lake data substantiate phosphorus limitation; i.e.,
the mean inorganic nitrogen to orthophosphorus ratios were
14 to 1 or greater at all sampling times, except for station
2 in November when the mean N/P ratio was 11/1 (probable
nitrogen limitation).
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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 deter-
mined by using a modification of a U.S. Geological Survey computer
program for calculating stream loadings*. Nutrient loads shown are
those measured minus point-source loads, if any.
Nutrient loads for unsampled "minor tributaries and immediate
drainage" ("ZZ" of U.S.G.S.) were estimated using the nutrient loads,
in kg/km2/yr, at station B-l and multiplying by the ZZ area in km2.
The operator of the Frostproof wastewater treatment plant provided
monthly effluent samples and corresponding flow data. The operator of
the Ben Hill Griffin Company wastewater treatment plant did not parti-
cipate, but he estimated nutrient discharges as 1,665 kg nitrogen and
less than 40 kg phosphorus per seven-month operating season (these
estimates may be too conservative—see page 2).
* See Working Paper No. 175.
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10
Waste Sources*:
1. Known municipal -
Name
Pop.
Served
Frostproof 500
2. Known industrial -
Name
Ben Hill
Griffin Co.
Type
Waste
Treatment
tr. filter
Treatment
citrus act. sludge
process.
Mean Flow
(ms/d)
170.8
Mean Flow
(mVd)
18,925
Receiving
Water
Reedy Lake
Receiving
Water
Reedy Lake
* Treatment plant questionnaires.
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11
B. Annual Total Phosphorus Loading - Average Year:
1. Inputs -
kg P/ % of
Source yr total
a. Tributaries (non-point load) -
Unnamed Creek B-l 170 1.8
b. Minor tributaries & immediate
drainage (non-point load) - 8,015 87.0
c. Known municipal STP's -
Frostproof 360 3.9
d. Septic tanks* - 15 0.2
e. Known industrial -
Ben Hill Griffin Co. 40(?) 0.4
f. Direct precipitation** - 620 6.7
Total 9,240 100.0
2. Outputs -
Lake outlet - Reedy Creek 1,010
3. Net annual P accumulation - 8,230 kg.
* Estimate based on 58 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) -
Unnamed Creek B-l 22,000 2.1
b. Minor tributaries & immediate
drainage (non-point load) - 1,031,020 96.8
c. Known municipal STP's -
Frostproof 875 0.1
d. Septic tanks* - 620 0.1
e. Known industrial -
Ben Hill Griffin Co. 1,665(?) 0.1
f. Direct precipitation** - 8,185 0.8
Totals 1,066,300 100.0
2. Outputs -
Lake outlet - Reedy Creek 45,680
3. Net annual N accumulation - 1,020,620 kg.
* Estimate based on 58 lakeshore dwellings; see Working Paper No. 175.
** Brezonik and Shannon, 1971.
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13
D. Non-point Nutrient Export by Subdrainage Area:
Tributary kg P/km2/yr kg N/km2/yr
Unnamed Creek B-l 57 7,333
E. Yearly Loads:
In the following table, the Survey phosphorus loadings
are compared to those proposed by Vollenweider (Vollenweider
and Dillon, 1974). Note, however, the Florida lakes may assi-
milate 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 re-
sult in the receiving water remaining oligotrophic or becoming
oligotrophic 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 0.65 0.58 75.6 72.3
Vollenweider phosphorus loadings
(g/m2/yr) based on estimated mean depth
and hydraulic retention time of Reedy Lake:
"Dangerous" (eutrophic loading) 0.30
"Permissible (oligotrophic loading) 0.15
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14
V. LITERATURE REVIEWED
Anonymous, 1972. 1971-1972 Annual Progress Report-water quality in-
vestigations. Fed. Aid in Fish Restor., Dingell-Johnson Proj.
F-21-6, 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, FL Water Resources
Res. Ctr., U. of FL, Gainesville.
Shannon, Earl E., and Patrick L. Brezonik, 1972. Relationships be-
tween lake trophic state and nitrogen and phosphorus loading
rates. Env. Sci. & Techn. 6_(8) :719-725.
Stuart, Tim S., 1976.
report. FL Dept.
Personal communication (review of preliminary
of Env. Reg., Tallahassee.
Vollenweider, R.A., and P.O. Dillon, 1974. The application of
the phosphorus loaidng concept to eutrophication research.
Natl. Res. Council of Canada Publ. No. 13690, Canada Centre
for Inland Waters, Burlington, Ontario.
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15
VI. APPENDICES
APPENDIX A
LAKE RANKINGS
-------
LAKE DATA TO BE USED IN HANKINGS
LAKE
COOE
1201
1302
1203
1206
1207
1208
1209
1210
1211
1212
121<*
1215
1217
1219
1220
1221
122J
1224
1227
1228
1229
1230
1231
1232
123"
1236
1238
1239
LAKE
NAME
ALLIGATOR LAKE
LAKE
LAKE
LAKE
APOPKA
6ANANA
CRESCENT
DOCTORS LAKE
LAKE
LAKE
LAKE
LAKE
DORA
EFFIE
GEORGE
GldSON
GLE'NADA LAKE
LAKE
LAKE
LAKE
LAKE
LAKE
LAKE
LAKE
LAKE
LAKE
LAKE
LAKE
LAKE
LAKE
LAKE
LAI\L
LAKE
LAKE
LAKE
GRIFFIN
HAINES
HANCOCK
HORSESHOE
"OWELL
ISTtXPOGA
JESSUP
K1SSIMMEE
LULU
MARION
MINNEHAHA
"INNEOLA
MONROE
OKEECHOdEE
PpINSETT
PFEOY
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
c
0
0
0
. t>2C
.102
.660
.065
.08i.
.102
.480
.129
.167
.134
.119
.063
.773
.034
.260
.039
.4*3
.034
.490
.044
.03»
.01?
.139
.063
.066
.033
.074
.085
MEUIAN
INO^G N
0.260
O.J30
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
o.?90
0.145
1.065
0.260
o.oso
0.0 70
0.300
0.185
0.150
0.330
0. 130
0.290
500-
MEAN StC
474.000
484.176
482.667
473.889
465.555
482.889
489.000
469. 30B
470.000
454.167
481.333
462.667
48.1. 500
459.000
464.000
464.222
487.000
463.667
483.000
468.833
435.000
406.333
474.555
47
0.386
0.019
0,293
0.033
0.02B
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
O.OU
0.009
0.1 2«
0.010
0.051
O.OOo
0.028
0.031
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LAKE OAT* TO BE USED IN RANKINGS
LAXE
COOE
1240
13".!
12*2
1243
1246
1247
1248
1249
12SO
12S2
1258
1261
1264
LAKE
LAKE
LAKE
TROUT
LAKE
LAKE
LAKE
LAKE
LAKE
LAKE
LAKE
LAKE
EAST
NAME
THONOTOSASSA
TOHOPEKALIGA
LAKE
•IEOHYAKAPKA
YALE
HUNSON
SEMINOLE
LAtfNE
TARPON
ELOISE
JESSIE
LAKE TOHOPEKALIGA
MEDIAN
TOTAL P
0
0
1
0
0
1
0
?
0
0
0
0
PAYNE'S PWAIRIE LAKE (NO 1
.6*5
.246
.110
.047
.027
.475
.234
.560
.041
.486
.051
.042
.260
MEDIAN
INOOG N
0.095
0.200
0.6SO
0.080
0.160
0.925
0.175
1.3SO
o.oro
0.170
0.090
0.070
0. 140
SCO-
MEAN SEC
466.
472.
472.
4sa.
441.
486.
473.
494.
400.
465.
452.
440.
47b.
167
917
000
667
000
667
833
667
889
J33
667
833
000
MEAN
CHLOHA
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
10.200
10.500
12.900
8.200
7.600
12.200
d.600
10.400
9.000
12.200
10.800
9.400
7.400
MEDIAN
DISS OtfTriO P
0.565
0.152
0.970
0.011
0.014
0.8S2
0.026
0.117
O.U27
0.339
0.011
0.007
1.210
-------
PERCENT OF LAKES *ITH HIGHER VALUES (NUMBER OF LAK.ES *ITH HIGHER VALUES)
LAKE
COOE
1201
1202
1203
1206
1207
1203
1209
1219
1211
1212
121<*
121S
1217
1219
1220
1221
1223
1224
1227
1228
1229
1230
1231
1232
123-.
1236
1236
1239
LAKE NAME
ALLIGATOR LAKE
LAKE APO°KA
LAKE BANANA
LAKE CRESCENT
DOCTORS LAKE
LAKE DOHA
LAKE EFFIE
LAKE GEORGE
LAKE GIBSON
GLENADA LAKE
LAKE GRIFFIN
LAKE HAINES
LAKE HANCOCK
LAKt HORSESHOE
LAKE HOWELL
LAKE ISTOKPOGA
LA«.E JESSUP
LAKE KI5SIMMEE
LAKE LULU
LAKE MARION
LAKL MINNEHAHA
LAKE MINNEOLA
LAKE MONROE
LAKE OKEECHOdEE
LAKE POINSETT
LAKE KEEDr
LAKE SOUTH
LAKE TALOUIN
MEDIAN
TOTAL P
25 (
SO (
23 I
65 (
60 (
. S3 (
5 (
45 (
40 (
a3 (
48 (
70 (
. 18 .<
93 1
11 I
as (
28 <
90 (
3 (
78 (
8rt (
100 (
38 (
68 <
58 (
95 (
63 (
55 (
10)
23)
9)
26)
2*)
21).
2)
IB)
16)
17)
19)
28)
7)
371
41
34)
11)
361
1)
31)
35)
40)
15)
27)
231
36)
25)
22)
MEDIAN
INORG N
29
38
29
70
76
35
10
54
81
54
29
ai
43
10
23
76
1«
63
3
29
91
98
15
45
60
13
70
20
( 10)
I IS)
( 10)
( 27)
I 30)
( 14)
( 4)
( 211
< 32)
( 21)
( 10)
< 32)
I 17)
I 27)
I 9)
( 30)
( 7)
( 25)
( 1)
< 10)
( 36)
( 38)
( 6)
( 1H)
( 24)
( SI
( 27)
( 81
500-
MEAN SEC '
30
10
20
33
60
18
3
48
45
85
23
75
13
00
t>9
65
5
73
15
53
95
98
20
40
SO
55
69
78
( 12)
( 4)
( B)
( 13)
1 24)
( 7)
( 1)
( 191
( 18)
( 34)
1 9)
( 30)
1 5)
( 321
( 27)
( 26)
( 2)
( 29)
( 6)
I 21)
( 38)
( J9)
( 11)
< 16)
( 20)
( 22)
( 27)
( 31)
MEAN
CHLO«A
18 1
3d (
5 I
80 (
55 (
33 1
3 1
43 (
70 (
53 <
30 (
SB I
13 (
7(J 1
35 (
93 1
26 (
OS (
0 1
bO I
85 (
100 (
/4> (
73 (
9S (
45 (
68 <
H3 (
7)
IS)
2)
32)
22)
13)
1)
17)
28)
21)
12)
23)
5)
31)
!*•)
37)
10)
26)
0)
20)
34)
40)
JO)
291
38)
Ib)
27)
331
15-
MIN 00
10 (
74 (
100 (
48 (
J4 (
90 <
0 (
23 (
48 I
3 (
95 (
34 (
98 <
20 (
60 (
69 I
83 (
65 (
8 (
83 (
78 (
90 (
26 (
53 (
34 (
34 I
60 <
5 (
4)
29)
401
18)
12)
35)
0)
9)
18)
D
38)
12)
39)
8)
23)
27)
32)
26)
3)
32)
31)
35)
10)
21)
12)
12)
23)
2)
MEDIAN
OISS ORTHO V
18 (
70 (
23 <
SO I
56 (
68 I
10 (
43 {
40 (
38 I
48 I
78 <
20 (
65 (
3 (
89 (
25 (
99 I
5 (
73 (
80 I
93 (
3J (
89 (
45 (
9S (
56 (
53 (
M
28) '
9)
20)
22)
27)
4)
17)
16)
15)
19)
31)
11)
26)
1)
35)
10)
391
2)
29)
32)
37)
13)
3b)
18)
38)
22)
21)
INJE*
NO
1JU
Sou
200
346
341
297
31
256
324
276
273
396
213
*»06
201
477
It)'.
4aS
34
366
517
i79
21b
368
3-«2
33 1
346
294
-------
PERCENT OF LAKES KITH hIGHER VALUES
OF LAKES »ITH HlGnE^ VALUES)
LAKE
CODE
1240
1241
1242
1243
12*6
1347
12
( 30)
I 39)
( 3)
( 14)
( 0)
< 331
< 1?)
( 29)
( 32)
( 4)
MEDIAN
INOriG N
as (
40 (
e (
91 (
58 (
5 (
48 (
0 (
48 (
50 <
AS (
98 I
65 (
34)
16)
3)
36)
231
2)
19)
0)
38)
201
35)
38)
2t>>
500-
MEAN SEC
58
38
43
83
90
a
35
0
100
63
ab
93
25
( 23)
( 15)
( 17)
( 3J)
< 36)
( 3)
( 14)
( 0)
( 40)
( 25)
( 35)
( 37)
( 10)
MEAN
CHLO-»A
40
48
23
da
63
8
10
20
90
2«
60
98
15
1 16)
I 191
( 9)
( 35)
< 25)
< 3)
( 4)
I 8)
( 36)
I ID
( 24)
( 39)
( 6)
15-
MlN DO
48
40
13
74
83
16
69
»3
60
16
26
55
90
( 181
1 161
( 5)
( 29)
( 32)
( 6)
( 27)
( 17)
1 23)
( 6)
I 10)
( 22)
( 35)
MEDIAN
OISS OHTriO P
IS
30
a
84
75
13
63
35
60
20
84
99
0
( 6)
( 12)
( 3)
( 33)
I 30)
< 5)
< 25)
( 14)
( 24)
< 8)
( 331
< 39)
I 0)
INJEX
NO
266
229
110
4^5
467
58
260
•y«
4*1
207
419
523
2i)6
-------
LAKES RANKED Br INDEX NOS.
RANK LAKE CODE LAKE NAME INDEX NO
i 1230 LAKE MINNEOLA 579
2 1261 EAST LAKE IOHOPEKALIGA 523
3 1229 LAKE MINNEHAMA 517
4 1243 LAKE HEOHYAKAPKA 495
5 1250 LAKE TARPON 491
6 1221 LAKE ISTOKPOGA '.. " " *77'
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 1228 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 8r INOE« NOS.
RANK LAKE CODE LAKE NAME INDEX NO
29 1331 LAKE MONROE 215
30 1217 LAKE HANCOCK 213
31 1252 LAKE EL01SE 207
32 126* PAYNE'S PRAIRIE LAKE (VO 206
33 1220 LAKE rtOrfELL 201
3*> 1203 LAKE bANANA ?00
35 1223 LAKE JESSUP le*
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 34
*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
a/as/75
LAKE CODE 1236
REEOY LAKE
TOTAL DRAINAGE AREA OF LAKE(SO KM)
157.7
SUB-DKAINAGE
TRIBUTARY AREA(SQ KM)
1236AI
123681
1236ZZ
157.7
3.0
140.9
JAN
0.92
0.18
0.73
FES
0.89
0.18
0.62
MAR
0.87
0.16
0.64
APR
0.78
0.18
0.59
TOTAL DRAINAGE AREA OF LAKE =
SUM OF SUB-DRAINAGE AREAS =
MEAN MONTHLY FLOWS AND DAILY FLOWS(CMS)
TRIBUTARY MONTH YEAR
1236A1
1236B1
1236ZZ
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
MEAN FLOW DAY
0.65
0.68
0.54
0.51
0.65
0.85
1.10
1.10
0.88
0.74
0.62
0.48
0.18
0.19
0.18
0.17
0.13
0.19
0.21
0.20
0.19
0.13
0.18
0.18
0.48
0.51
0.34
0.34
0.48
0.65
0.88
0.91
0.68
0.54
0.45
0.31
18
13
17
14
13
17
14
12
16
14
17
14
18
13
17
14
13
17
14
12
16
14
17
14
18
13
17
14
13
17
14
12
16
14
17
14
MAY
0.56
0.16
0.64
Ib7.7
143.8
NORMALIZED FLOWS(CMS)
JUN JUL AUG
0.75
0.17
0.97
0.98
0.18
0.75
1.12
0.19
1.01
SEP
1.31
0.20
1.17
OCT
1.54
0.21
1.03
NOV
1.24
0.19
0.77
DEC
1.03
0.18
0.68
MEAN
1.00
0.18
0.82
SUMMARY
TOTAL FLOW IN
TOTAL FLOW OUT
11.99
12.01
FLOW DAY
0.62
0.74
0.57
0.45
0.74
0.82
1.16
1.19
0.88
0.68
0.62
0.48
0.18
0.19
0.18
0.17
0.18
0.19
0.21
0.21
0.19
0.16
0.18
0.18
0.45
0.57
0.40
0.28
0.54
U.62
0.93
0.99
0.68
0.51
0.42
0.31
FLOW DAY
FLOW
-------
APPENDIX D
PHYSICAL and CHEMICAL DATA
-------
STORE! RETRIEVAL DATE 75/08/25
123601
27 44 20.0 081 31 01.0
LAKE REEDY
12105 FLORIDA
DATE
FROM
TO
73/03/12
73/11/07
DATE
FROM
TO
73/03/12
73/11/07
TIME DEPTH
OF
DAY FEET
14 15 0000
14 15 0005
14 15 0008
10 10 0000
10 10 0001
10 10 0007
TIME DEPTH
OF
DAY FEET
14 15 0000
14 15 0005
14 15 0008
10 10 0000
10 10 0007
00010
WATER
TEMP
CENT
26.1
24.6
24.7
23.4
33.4
23.3
00665
PHOS-TOT
MG/L P
0.047
0.039
0.021
0.032
0.031
00300
DO
MG/L
10.5
10.1
7.8
7.8
32217
CHLRPHYL
A
UG/L
33.1
31.2
00077 00094
TRANSP CNDUCTVY
SECCHI FIELD
INCHES MICROMHO
30
36
240
235
235
192
19?
191
11EPALES
3
00400
PH
SU
9.40
9.40
9.30
8.20
00410
T ALK
CAC03
MG/L
47
48
49
44
2111202
0010 FEET DEPTH
00610
NH3-N
TOTAL
MG/L
0.490
0.500
0.480
0.090
0062S
TOT KJEL
N
MG/L
2.300
1.900
2.100
1.600
00630
N02&N03
N-TOTAL
MG/L
0.340
0.330
0.300
0.100
00671
PHOS-DIS
ORTHO
MG/L P
0.008
0.007
0.007
0.015
7.80
45
0.090
1.600
0.100
0.013
-------
STORET RETRIEVAL DATE 75/08/25
12.3602
27 44 32.0 081 29 58.0
LAKt REEDY
12105 FLORIDA
00010
DATE TIME DEPTH WATER
FROM OF TEMP
TO DAY FEET CENT
73/03/12 14 50 0000
14 50 0004
14 50 0010
73/03/13 14 50 0000 27.8
14 50 0004 23.7
14 50 0010 22.3
73/11/07 10 23 0000 23.5
10 23 0001 23.5
10 23 0008 23.5
10 37 0000
10 37 0007
00300 00077 00094
DO TRANSP CNDUCTVY
SECCHI FIELD
MG/L INCHES MICROMHO
8.9
4.4
7.8
7.8
28
36
240
230
245
192
192
191
11EPALES
3
00400
PH
SU
00410
T ALK
CAC03
MG/L
57
58
64
2111202
0014 FEET DEPTH
00610
NH3-N
TOTAL
MG/L
0.450
0.540
0.900
00625
TOT KJEL
N
MG/L
2.200
2.000
2.500
00630
N02&N03
N-TOTAL
MG/L
0.300
0.260
0.200
00671
PHOS-DIS
OHTHO
MG/L P
0.008
0.005
0.007
9.50
8.80
8.30
7.90
8.00
46
46
47
48
0.080
0.070
0.080
0.090
1.600
1.500
1.400
1.500
0.080
0.070
0.080
0.080
0.015
0.015
0.015
0.013
00665
DATE TIME DEPTH PHOS-TOT
FROM OF
TO DAY FEET MG/L P
73/03/12
73/03/13
73/11/07
14
14
14
14
10
10
10
10
50
50
50
50
23
23
37
37
OOUO
0004
0010
0000
0000
0008
0000
0007
0
0
0
0
0
0
0
.059
.053
.059
.028
.027
.028
.030
32217
CHLRPHYL
A
UG/L
33.0
28.5
-------
STORE! RETRIEVAL DATE 75/08/25
123603
27 43 43.0 081 29 08.0
LAKE REEOY
12105 FLORIDA
00010
DATE TIME DEPTH WATER
FROM OF TEMP
TO DAY FEET CENT
73/03/13 16 00 0000 25.5
16 00 0004 24.0
73/11/07 10 37 0000 23.8
10 37 0001 23.8
10 37 0007 23.7
00300 00077
DO TRANSP a
SECCHI FIELD
MG/L INCHES M]
9.7
7.6
7.8
30
36
11EPALES
3
2111202
0010 FEET
DEPTH
94
TVY
1
'MHO
230
220
193
193
193
00400
PH
. SU
9.50
9.30
8.20
8.00
00410
T ALK
CAC03
MG/L
58
57
00610
NH3-N
TOTAL
MG/L
0.480
0.520
00625
TOT KJEL
N
MG/L
2.100
1.900
00630
N02S.N03
N-TOTAL
MG/L
0.300
0.260
00671
PHOS-DIS
ORTHO
MG/L P
0.008
0.008
00665 32217
DATE TIME DEPTH PHOS-TOT CHLRPHYL
FROM OF A
TO DAY FEET MG/L P UG/L
73/03/13 16 00 0000 0.040 20.8
16 00 0004 0.042
73/11/07 10 37 0000 28.6
-------
STORET (RETRIEVAL DATE 75/08/25
24 44 45.0 081 30 40.0
LAKE *EEDY
12105 FLOKIDA
00010
DATE TIME DEPTH WATER
FROM OF TEMP
TO DAY FEET CENT
73/09/05 13 00 0000 28.6
13 00 0010 28.5
00300 00077 00094
DO TRANSP CNDUCTVY
SECCHI FIELD
MG/L INCHES MICROMHO
7.2
7.6
30
221
218
11EPALES
4
00400
PH
SU
8.00
7.40
00410
T ALK
CAC03
MG/L
51
50
211
0012
00610
NH3-N
TOTAL
MG/L
0.180
0.130
1202
FEET DEPTH
00625
TOT KJEL
N
MG/L
1.900
1.500
00630
N02&N03
N-TOTAL
MG/L
0.170
0.160
00671
HHOS-OIS
ORTHO
MG/L P
0.025
0.010
00665 32217
DATE TIME DEPTH PHOS-TOT CHLRPHYL
FROM OF A
TO DAY FEET MG/L P OG/L
73/09/05 13 00 0000 0.034 53.2
13 00 0010 0.045
-------
STORET RETRIEVAL DATE 75/08/25
123605
24 44 30.0 081 29 15.0
LAKE riEEDY
12105 FLORIDA
11EPALES
4
2111202
0013 FEET
DEPTH
00665 32217
DATE TIME DEPTH PHOS-TOT CHLRPHYL
FROM OF A
TO DAY FEET MG/L P UG/L
73/09/05 13 30 0000 0.022 50.3
13 30 0010 0.020
DATE TIME DEPTH
FROM OF
TO DAY FEET
73/09/05 13 30 0000
13 30 0010
00010
WATER
TEMP
CENT
28.6
28.2
00300 00077 00094
DO TRANSP CNDUCTVY
SECCHI FIELD
MG/L INCHES MICKOMHO
26
6.6
221
219
00400
PH
SU
7,50
7.20
00410
T ALK
CAC03
MG/L
55
55
00610
NH3-N
TOTAL
MG/L
0.150
0.120
00625
TOT KJEL
N
MG/L
1.700
1.400
00630
N02&N03
N-TOTAL
MG/L
0 .160
0.140
00671
PHOS-OIS
ORTHO
MG/L P
0.008
0.007
-------
APPENDIX E
TRIBUTARY and WASTEWATER
TREATMENT PLANT DATA
-------
STORET RETRIEVAL DATE 75/08/25
1236A1
27 43 00.0 081 28 30.0
NEEDY CREEK
1200* 7.5 I_K ARBUCKLE
0/REEDY CREEK
RO BRDG NEAR GAGING STATION
11EPALES 2111204
4 0000 FEET
DATE
FROM
TO
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
00630 00625
TIME DEPTH N02&N03 TOT KJEL
OF N-TOTAL N
DAY FEET
14
10
10
10
09
10
10
10
11
12
12
12
25
55
40
35
55
40
30
45
05
40
30
50
MG/L
0
0
0
0
0
0
0
0
0
0
0
0
.140
.084
.052
.010K
.011
.010K
.010i\
.010K
.024
.016
.016
.008
MG/L
1.
2.
2.
1.
1.
1.
1.
1.
0.
0.
1.
1.
700
300
300
100
320
180
050
350
800
900
200
600
00610 00671 00665
NH3-N PHOS-OIS PHOS-TOT
TOTAL ORTHO
MG/L
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
399
260
140
009
036
016
026
012
008
012
008
010
MG/L
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
0.
P
015
008
007
007
008
009
007
007
008
012
008
005K
MG/L P
0.060
0.045
0.055
0.025
0.030
0.020
0.030
0.020
0.010
0.025
0.030
0.030
DEPTH
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
STORET RETRIEVAL DATE 75/06/25
DATE TIME DEPTH N02&NOJ
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
14 50
11 15
11 20
11 20
10 05
11 25
10 45
11 30
11 45
12 55
13 10
13 30
12J681
27 46 00.0 031 31 30.0
UNNAMED CREEK
12 7.5 BABSON PARK
1/REEDr LAKE
ST HWY 630 8RDG OUTLET OF LAKE IDA
11EPALES 2111204
4 0000 FEET DEPTH
0630
&N03
OTAL
G/L
3.200
2.100
1.900
1.940
1.880
1.800
1.900
2.600
3.080
3.780
4.300
3.600
00625
TOT KJEL
N
MG/L
o.aao
0.980
2.900
1.700
1.100
0.930
0.980
1.200
0.800
0.200
0.900
1.200
00610
NH3-N
TOTAL
MG/L
0.072
0.029
0.310
0.135
0.138
0.056
0.075
0.036
0.020
0.024
0.032
0.020
00671
PHOS-DIS
ORTHO
MG/L P
0.010
0.006
0.007
0.007
0.007
0.020
0.005K
0.009
0.008
0.012
0.005K
00665
PHOS-TOT
MG/L P
0.035
0.030
0.035
0.030
0.035
0.040
0.030
0.025
0.025
0.012
0.026
0.030
K VALUE KNOWN TO BE
LESS THAN INDICATED
-------
STORET RETRIEVAL DATE 75/08/25
DATE TIME DEPTH N02&N03
FROM OF
TO DAY FEET
73/03/06
73/03/26
73/05/01
73/06/04
73/06/28
73/07/30
73/08/30
73/10/05
73/11/02
73/12/05
74/01/07
74/02/12
11 00
16 00
15 00
14 00
22 00
08 00
12 00
15 00
21 00
12 30
09 00
11 00
12360A TF1232CA P000500
27 45 00.0 080 31 30.0
FROSTPROFF
12009 1-250000 FT PIER
D/LAKE WEEDY
LAKE REEDY
11EPALES 2141204
4 0000 FEET DEPTH
0630
I&N03
OTAL
IG/L
1.790
2.000
2.200
1.670
1.975
2.940
3.500
2.520
4.&00
1.680
2.400
3.000
00625
TOT KJEL
N
MG/L
17.000
19.000
9.540
11.500
9.050
7.200
3.900
8.200
18.000
10.500
10.500
14.000
00610
NH3-N
TOTAL
MG/L
6.720
6.550
1.502
2.940
1.940
2.400
0.570
4.300
2.^00
4.200
3.680
00671
PHOS-OIS
ORTHO
MG/L P
5.500
8.700
3.000
6.380
5.650
4.300
2.620
2.800
6.900
3.700
3.520
4.100
00665
PHOS-TOT
MG/L P
9.100
8.900
3.600
7.100
6.600
5.200
3.900
3.950
8.400
5.000
3.700
4.950
50051
FLOW
RATE
INST MGO
0.035
0.045
0.044
0.032
0.031
0.046
0.060
0.070
0.065
0.050
0.037
0.046
50053
CONDUIT
FLOW-MOD
MONTHLY
0.033
0.045
0.048
0.042
0.032
0.049
0.061
0.025
0.064
0.048
0.050
0.045
------- |