Coon (Osceola County)

Florida LAKEWATCH Water Chemistry Summary

Location: Latitude 28°15'54", Longitude 81°10'51"

Period of record: 85 sampling dates; June 23, 1990 to December 20, 1999

Surface area (LAKEWATCH): 126 acres / 51 hectacres    (Bathymetric Map)

Lake Region (Griffith et al. 1997): Osceola Slope

Geologic formation (Brooks 1981):

The geology is dominated by coastal sand and shelly silty sand of the preglacial Pleistocene.

Physiographic region (Brooks 1981):

The water body lies in the Kissimmee Valley division of the Eastern Flatwoods District.
 
 

Supplemental, unpublished water chemistry data, University of Florida.

Numbers reported below are the average for 1 month sampled:
 
pH
5.8
 Sulfate (mg/L)
6.2
Total alkalinity (mg/L as CaCO3)
1.6
 Calcium (mg/L)
3.5
Conductance (µS/cm @ 25 °C)
101
 Magnesium (mg/L)
2.7
Color (Pt-Co units)
217
 Sodium (mg/L)
11.0
Chloride (mg/L)
27.7
 Potassium (mg/L)
1.8

Long-term Florida LAKEWATCH Data

Numbers reported below are the minimum, average, and maximum value for the 85 months sampled:

 
Minimum
Average
Maximum
Long-term total phosphorus concentrations (µg/L)
8
35
82
Long-term total nitrogen concentrations (µg/L)
610
990
1770
Long-term total chlorophyll concentrations (µg/L)
2.3
10.8
73.3
Long-term Secchi depth (ft)
0.8
1.8
4.0

1999 Florida LAKEWATCH Data

Numbers reported below are monthly averages calculated from 3 stations for total phosphorus (TP, µg/L), total nitrogen (TN, µg/L), chlorophyll (CHL, µg/L) and Secchi depth (SECCHI, ft) during 1999:

Date
TP (µg/L)
TN (µg/L)
CHL (µg/L)
SECCHI (ft
Jan-21-99
32
640
7.7
3.0
Feb-24-99
35
650
7.7
2.8
Mar-20-99
39
680
7.7
3.2
Apr-19-99
41
680
14.3
2.5
May-07-99
40
750
14.0
3.0
Jun-21-99
82
910
62.7
2.2
Jul-16-99
53
710
24.7
.
Aug-14-99
30
650
7.7
4.0
Sep-17-99
53
1070
73.3
2.5
Oct-24-99
42
1070
12.3
2.0
Nov-22-99
41
1190
10.0
2.0
Dec-20-99
35
1220
5.7
2.0
         
1999 Average
44
850
20.6
2.7

Coon (Osceola County)

Florida LAKEWATCH Aquatic Plant Summary

Aquatic plant data collected on June 30, 1993

Percent area covered with aquatic vegetation (PAC, %)
6
Percent of lake's volume filled with vegetation (PVI, %)
1
Average emergent plant biomass (kg wet wt/m2)
3.4
Average floating-leaved plant biomass (kg wet wt/m2)
1.7
Average submersed plant biomass (kg wet wt/m2)
0.1
Average width of emergent and floating-leaved zone (ft.)
120
Average lake depth (m)
2

Frequency that plant species occur in 10 evenly spaced transects around the lake.

Common Name Plant Species
Frequency (%)
pickerelweed Pontederia cordata
90
spatterdock Nuphar luteum
70
slender spikerush Eleocharis baldwinii
60
fragrant water-lily Nymphaea odorata
60
cat-tail Typha spp.
60
maidencane Panicum hemitomon
60
giant bulrush Scirpus californicus
50
torpedograss Panicum repens
50
common salvinia Salvinia rotundifolia
40
duck-potato Sagittaria lancifolia
40
rush fuirena Fuirena scirpoidea
40
elephant-ear Colocasia esculenta
30
wax myrtle Myrica cerifera
30
water primrose Ludwigia octovalvis
30
buttonbush Cephalanthus occidentalis
30
St. John's wort Hypericum spp.
30
alligator-weed Alternanthera philoxeroides
20
Baldwin flat sedge Cyperus globulosus
20
floating water-hyacinth Eichhornia crassipes
10
water-pennywort Hydrocotyle umbellata
10
dwarf arrowhead Sagittaria subulata
10
musk-grass Chara spp.
10
bladderwort Utricularia foliosa
10

Coon (Osceola County)

Florida LAKEWATCH Aquatic Plant Summary

Aquatic plant data collected on June 10, 1998

Percent area covered with aquatic vegetation (PAC, %)
22
Percent of lake's volume filled with vegetation (PVI, %)
7
Average emergent plant biomass (kg wet wt/m2)
4.1
Average floating-leaved plant biomass (kg wet wt/m2)
2.7
Average submersed plant biomass (kg wet wt/m2)
0.0
Average width of emergent and floating-leaved zone (ft.)
102
Average lake depth (m)
2

Frequency that plant species occur in 10 evenly spaced transects around the lake.

Common Name Plant Species
Frequency (%)
spatterdock Nuphar luteum
80
pickerelweed Pontederia cordata
80
elephant-ear Colocasia esculenta
80
giant bulrush Scirpus californicus
80
maidencane Panicum hemitomon
80
wax myrtle Myrica cerifera
70
duck-potato Sagittaria lancifolia
50
floating water-hyacinth Eichhornia crassipes
40
common salvinia Salvinia rotundifolia
40
alligator-weed Alternanthera philoxeroides
40
torpedograss Panicum repens
40
cat-tail Typha spp.
30
water primrose Ludwigia octovalvis
30
buttonbush Cephalanthus occidentalis
10
para grass Brachiaria mutica
10
St. John's wort Hypericum spp.
10
red maple Acer rubrum
10

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